AMINE-CONTAINING COMPOUND, LIGHT-EMITTING DEVICE INCLUDING THE SAME, ELECTRONIC APPARATUS AND ELECTRONIC EQUIPMENT

Abstract

An amine-containing compound represented by Formula 1, an organic light-emitting device including the amine-containing compound, and an electronic apparatus and electronic equipment, each including the organic light-emitting device, are provided:

##STR00001##

Claims

1. An amine-containing compound represented by Formula 1: ##STR00191## wherein, in Formula 1, Ar.sub.11, Ar.sub.12, and Ar.sub.21 are each independently a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.60 heterocyclic group, Ar.sub.31, Ar.sub.32, L.sub.2, and L.sub.3 are each independently: a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a; or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, m2 is an integer from 0 to 5, when m2 is 0, then a group represented by *-(L.sub.2).sub.m2-* is a single bond, m3 is 1, 3, or 4, X is C(R.sub.4)(R.sub.5), N(R.sub.6), O, or S, R.sub.1, R.sub.2, R.sub.4, R.sub.5, and Re are each independently hydrogen, deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a C.sub.1-C.sub.60 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.60 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.60 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 alkoxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.10 cycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.10 heterocycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.10 cycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.10 heterocycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 aryl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 aryloxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 arylthio group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroaryl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroaryloxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroarylthio group unsubstituted or substituted with at least one R.sub.10a, a monovalent non-aromatic condensed polycyclic group unsubstituted or substituted with at least one R.sub.10a, a monovalent non-aromatic condensed heteropolycyclic group unsubstituted or substituted with at least one R.sub.10a, Si(Q.sub.1)(Q.sub.2)(Q.sub.3), B(Q.sub.1)(Q.sub.2), N(Q.sub.1)(Q.sub.2), P(Q.sub.1)(Q.sub.2), C(O)(Q.sub.1), S(O)(Q.sub.1), S(O).sub.2(Q.sub.1), P(O)(Q.sub.1)(Q.sub.2), or P(S)(Q.sub.1)(Q.sub.2), neighboring two or more selected from among R.sub.1, R.sub.2, R.sub.4, R.sub.5, and R.sub.6 are optionally bonded to each other to form a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, n1 and n2 are each independently an integer from 0 to 15, when n1 is an integer of 2 or more, then a plurality of R.sub.1(s) are identical to or different from each other, when n2 is an integer of 2 or more, then a plurality of R.sub.2(s) are identical to or different from each other, R.sub.10a is: deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, or a nitro group; a C.sub.1-C.sub.60 alkyl group, a C.sub.2-C.sub.60 alkenyl group, a C.sub.2-C.sub.60 alkynyl group, or a C.sub.1-C.sub.60 alkoxy group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, Si(Q.sub.11)(Q.sub.12)(Q.sub.13), N(Q.sub.11)(Q.sub.12), B(Q.sub.11)(Q.sub.12), C(O)(Q.sub.11), S(O).sub.2(Q.sub.11), P(O)(Q.sub.11)(Q.sub.12), or any combination thereof; a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, or a C.sub.6-C.sub.60 arylthio group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.1-C.sub.60 alkyl group, a C.sub.2-C.sub.60 alkenyl group, a C.sub.2-C.sub.60 alkynyl group, a C.sub.1-C.sub.60 alkoxy group, a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, Si(Q.sub.21)(Q.sub.22)(Q.sub.23), N(Q.sub.21)(Q.sub.22), B(Q.sub.21)(Q.sub.22), C(O)(Q.sub.21), S(O).sub.2(Q.sub.21), P(O)(Q.sub.21)(Q.sub.22), or any combination thereof; or Si(Q.sub.31)(Q.sub.32)(Q.sub.33), N(Q.sub.31)(Q.sub.32), B(Q.sub.31)(Q.sub.32), C(O)(Q.sub.31), S(O).sub.2(Q.sub.31), or P(O)(Q.sub.31)(Q.sub.32), Q.sub.1 to Q.sub.3, Q.sub.11 to Q.sub.13, Q.sub.21 to Q.sub.23, and Q.sub.31 to Q.sub.33 are each independently: hydrogen; deuterium; F; Cl; Br; I; a hydroxyl group; a cyano group; a nitro group; a C.sub.1-C.sub.60 alkyl group; a C.sub.2-C.sub.60 alkenyl group; a C.sub.2-C.sub.60 alkynyl group; a C.sub.1-C.sub.60 alkoxy group; or a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.60 heterocyclic group, each unsubstituted or substituted with deuterium, F, a cyano group, a C.sub.1-C.sub.60 alkyl group, a C.sub.1-C.sub.60 alkoxy group, a phenyl group, a biphenyl group, or any combination thereof, and * and * each independently indicate a binding site to a neighboring atom.

2. The amine-containing compound of claim 1, wherein Ar.sub.11 and Ar.sub.12 are each independently a benzene group, a naphthalene group, a phenanthrene group, a fluoranthene group, a triphenylene group, a pyrene group, a chrysene group, an indene group, a fluorene group, a spiro-bifluorene group, a benzofluorene group, a dibenzofluorene group, an indole group, a pyridine group, a pyrimidine group, a carbazole group, a benzocarbazole group, a dibenzocarbazole group, a furan group, a benzofuran group, a dibenzofuran group, a naphthofuran group, a benzonaphthofuran group, a dinaphthofuran group, a thiophene group, a benzothiophene group, a dibenzothiophene group, a naphthothiophene group, a benzonaphthothiophene group, or a dinaphthothiophene group.

3. The amine-containing compound of claim 1, wherein the amine-containing compound represented by Formula 1 is a compound represented by any one selected from among Formulae 1-1 to 1-4: ##STR00192## and wherein, in Formulae 1-1 to 1-4, Ar.sub.21, Ar.sub.31, Ar.sub.32, L.sub.2, L.sub.3, m2, m3, X, R.sub.2, and n2 are the same as described in Formula 1, and R.sub.11 to R.sub.18 are each independently the same as described with respect to R.sub.1 in Formula 1.

4. The amine-containing compound of claim 1, wherein m2 is 0, 1, or 2.

5. The amine-containing compound of claim 1, wherein a group represented by ##STR00193## is a group represented by Formula 2A or Formula 2B: ##STR00194## and wherein, in Formulae 2A and 2B, R.sub.21 to R.sub.28 are each independently the same as described with respect to R.sub.2 in Formula 1, and * indicates a binding site to a neighboring atom.

6. The amine-containing compound of claim 5, wherein a group represented by ##STR00195## is a group represented by Formula 2A, and R.sub.21 or R.sub.23 is a C.sub.6-C.sub.60 aryl group unsubstituted or substituted with at least one R.sub.10a.

7. The amine-containing compound of claim 1, wherein L.sub.3 is a group represented by any one selected from among Formulae 3A to 3J: ##STR00196## ##STR00197## and wherein, in Formulae 3A and 3J, Z.sub.31 to Z.sub.38 are each independently the same as described with respect to R.sub.10a in Formula 1, and * and * each independently indicate a binding site to a neighboring atom.

8. The amine-containing compound of claim 1, wherein m3 is not 2.

9. The amine-containing compound of claim 1, wherein Ar.sub.31 and Ar.sub.32 are each independently a C.sub.6-C.sub.60 aryl group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.30 heteroaryl group unsubstituted or substituted with at least one R.sub.10a.

10. The amine-containing compound of claim 1, wherein the amine-containing compound represented by Formula 1 is selected from among Compounds 1 to 182: ##STR00198## ##STR00199## ##STR00200## ##STR00201## ##STR00202## ##STR00203## ##STR00204## ##STR00205## ##STR00206## ##STR00207## ##STR00208## ##STR00209## ##STR00210## ##STR00211## ##STR00212## ##STR00213## ##STR00214## ##STR00215## ##STR00216## ##STR00217## ##STR00218## ##STR00219## ##STR00220## ##STR00221## ##STR00222## ##STR00223## ##STR00224## ##STR00225## ##STR00226## ##STR00227## ##STR00228## ##STR00229## ##STR00230## ##STR00231## ##STR00232## ##STR00233## ##STR00234## ##STR00235## ##STR00236## ##STR00237## ##STR00238## ##STR00239## ##STR00240## ##STR00241## ##STR00242##

11. An organic light-emitting device comprising: a first electrode; a second electrode facing the first electrode; an interlayer between the first electrode and the second electrode and comprising an emission layer; and an amine-containing compound represented by Formula 1: ##STR00243## wherein, in Formula 1, Ar.sub.11, Ar.sub.12, and Ar.sub.21 are each independently a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.60 heterocyclic group, Ar.sub.31, Ar.sub.32, L.sub.2, and L.sub.3 are each independently: a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a; or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, m2 is an integer from 0 to 5, when m2 is 0, then a group represented by *-(L.sub.2).sub.m2-* is a single bond, m3 is 1, 3, or 4, X is C(R.sub.4)(R.sub.5), N(R.sub.6), O, or S, R.sub.1, R.sub.2, R.sub.4, R.sub.5, and R.sub.6 are each independently hydrogen, deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a C.sub.1-C.sub.60 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.60 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.60 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 alkoxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.10 cycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.10 heterocycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.10 cycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.10 heterocycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 aryl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 aryloxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 arylthio group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroaryl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroaryloxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroarylthio group unsubstituted or substituted with at least one R.sub.10a, a monovalent non-aromatic condensed polycyclic group unsubstituted or substituted with at least one R.sub.10a, a monovalent non-aromatic condensed heteropolycyclic group unsubstituted or substituted with at least one R.sub.10a, Si(Q.sub.1)(Q.sub.2)(Q.sub.3), B(Q.sub.1)(Q.sub.2), N(Q.sub.1)(Q.sub.2), P(Q.sub.1)(Q.sub.2), C(O)(Q.sub.1), S(O)(Q.sub.1), S(O).sub.2(Q.sub.1), P(O)(Q.sub.1)(Q.sub.2), or P(S)(Q.sub.1)(Q.sub.2), neighboring two or more selected from among R.sub.1, R.sub.2, R.sub.4, R.sub.5, and R.sub.6 are optionally bonded to each other to form a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, n1 and n2 are each independently an integer from 0 to 15, when n1 is an integer of 2 or more, then a plurality of R.sub.1(s) are identical to or different from each other, when n2 is an integer of 2 or more, then a plurality of R.sub.2(s) are identical to or different from each other, R.sub.10a is: deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, or a nitro group; a C.sub.1-C.sub.60 alkyl group, a C.sub.2-C.sub.60 alkenyl group, a C.sub.2-C.sub.60 alkynyl group, or a C.sub.1-C.sub.60 alkoxy group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, Si(Q.sub.11)(Q.sub.12)(Q.sub.13), N(Q.sub.11)(Q.sub.12), B(Q.sub.11)(Q.sub.12), C(O)(Q.sub.11), S(O).sub.2(Q.sub.11), P(O)(Q.sub.11)(Q.sub.12), or any combination thereof; a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, or a C.sub.6-C.sub.60 arylthio group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.1-C.sub.60 alkyl group, a C.sub.2-C.sub.60 alkenyl group, a C.sub.2-C.sub.60 alkynyl group, a C.sub.1-C.sub.60 alkoxy group, a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, Si(Q.sub.21)(Q.sub.22)(Q.sub.23), N(Q.sub.21)(Q.sub.22), B(Q.sub.21)(Q.sub.22), C(O)(Q.sub.21), S(O).sub.2(Q.sub.21), P(O)(Q.sub.21)(Q.sub.22), or any combination thereof; or Si(Q.sub.31)(Q.sub.32)(Q.sub.33), N(Q.sub.31)(Q.sub.32), B(Q.sub.31)(Q.sub.32), C(O)(Q.sub.31), S(O).sub.2(Q.sub.31), or P(O)(Q.sub.31)(Q.sub.32), Q.sub.1 to Q.sub.3, Q.sub.11 to Q.sub.13, Q.sub.21 to Q.sub.23, and Q.sub.31 to Q.sub.33 are each independently: hydrogen; deuterium; F; Cl; Br; I; a hydroxyl group; a cyano group; a nitro group; a C.sub.1-C.sub.60 alkyl group; a C.sub.2-C.sub.60 alkenyl group; a C.sub.2-C.sub.60 alkynyl group; a C.sub.1-C.sub.60 alkoxy group; or a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.60 heterocyclic group, each unsubstituted or substituted with deuterium, F, a cyano group, a C.sub.1-C.sub.60 alkyl group, a C.sub.1-C.sub.60 alkoxy group, a phenyl group, a biphenyl group, or any combination thereof, and * and * each independently indicate a binding site to a neighboring atom.

12. The organic light-emitting device of claim 11, wherein the first electrode is an anode, the second electrode is a cathode, the interlayer further comprises a hole transport region between the first electrode and the emission layer and an electron transport region between the emission layer and the second electrode, the hole transport region comprises at least one selected from among a hole injection layer, a hole transport layer, a buffer layer, an emission auxiliary layer, and an electron blocking layer, and the electron transport region comprises at least one selected from among a hole blocking layer, an electron transport layer, and an electron injection layer.

13. The organic light-emitting device of claim 11, wherein the amine-containing compound is in the interlayer.

14. The organic light-emitting device of claim 12, wherein the amine-containing compound is in the hole transport region.

15. The organic light-emitting device of claim 12, wherein the amine-containing compound is in the hole transport layer, and the hole transport layer is in direct contact with the emission layer.

16. The organic light-emitting device of claim 11, further comprising a capping layer outside the second electrode, wherein the amine-containing compound is in the capping layer.

17. The organic light-emitting device of claim 11, further comprising: a second capping layer outside the second electrode; and a first capping layer outside the first electrode, wherein the amine-containing compound is in the first capping layer or the second capping layer.

18. An electronic apparatus comprising the organic light-emitting device of claim 11.

19. The electronic apparatus of claim 18, further comprising a thin-film transistor, wherein the thin-film transistor comprises a source electrode and a drain electrode, and the first electrode of the organic light-emitting device is electrically connected to the source electrode or the drain electrode of the thin-film transistor.

20. An electronic equipment comprising the organic light-emitting device of claim 11.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of the present disclosure. The drawings illustrate embodiments of the present disclosure and, together with the description, serve to explain principles of the present disclosure. The above and other aspects, features, and advantages of certain embodiments of the disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0030] FIG. 1 is a schematic view of a structure of an organic light-emitting device according to one or more embodiments of the present disclosure;

[0031] FIG. 2 is a schematic view of a structure of a light-emitting apparatus according to one or more embodiments of the present disclosure;

[0032] FIG. 3 is a schematic view of a structure of a light-emitting apparatus according to one or more embodiments of the present disclosure.

[0033] FIG. 4 is a schematic perspective view of electronic equipment including an organic light-emitting device according to one or more embodiments of the present disclosure;

[0034] FIG. 5 is a schematic view of an exterior of a vehicle as electronic equipment including an organic light-emitting device according to one or more embodiments of the present disclosure; and

[0035] FIGS. 6A, 6B, and 6C are each a schematic view of an interior of a vehicle according to one or more embodiments of the present disclosure.

DETAILED DESCRIPTION

[0036] Reference will now be made in more detail to embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout the present disclosure, and duplicative descriptions thereof may not be provided. In this regard, the embodiments of the present disclosure may have different forms and should not be construed as being limited to the descriptions set forth herein. Accordingly, the embodiments of the present disclosure are merely described, by referring to the drawings, to explain aspects of the present disclosure. As utilized herein, the term and/or or or may include any and all combinations of one or more of the associated listed items. Throughout the disclosure, the expressions such as at least one of, one of, and selected from, when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list. For example, at least one of a, b or c, at least one selected from a, b, and c, at least one selected from among a to c, etc., may indicate only a, only b, only c, both (e.g., simultaneously) a and b, both (e.g., simultaneously) a and c, both (e.g., simultaneously) b and c, all of a, b, and c, or variations thereof. The / utilized herein may be interpreted as and or as or depending on the situation.

[0037] According to one or more embodiments of the present disclosure, provided is an amine-containing compound.

[0038] The amine-containing compound may be represented by Formula 1:

##STR00003##

[0039] In Formula 1, X may be C(R.sub.4)(R.sub.5), N(R.sub.6), O, or S.

[0040] In Formula 1, Ar.sub.11, Ar.sub.12, and Ar.sub.21 may each independently be a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.60 heterocyclic group.

[0041] In one or more embodiments, Ar.sub.11 and Ar.sub.12 may each independently be a benzene group, a naphthalene group, a phenanthrene group, a fluoranthene group, a triphenylene group, a pyrene group, a chrysene group, an indene group, a fluorene group, a spiro-bifluorene group, a benzofluorene group, a dibenzofluorene group, an indole group, a pyridine group, a pyrimidine group, a carbazole group, a benzocarbazole group, a dibenzocarbazole group, a furan group, a benzofuran group, a dibenzofuran group, a naphthofuran group, a benzonaphthofuran group, a dinaphthofuran group, a thiophene group, a benzothiophene group, a dibenzothiophene group, a naphthothiophene group, a benzonaphthothiophene group, or a dinaphthothiophene group.

[0042] In one or more embodiments, the amine-containing compound represented by Formula 1 may be a compound represented by any one selected from among Formulae 1-1 to 1-4:

##STR00004## [0043] wherein, in Formulae 1-1 to 1-4, Ar.sub.21, Ar.sub.31, Ar.sub.32, L.sub.2, L.sub.3, m2, m3, X, R.sub.2, and n2 may each independently be the same as described herein, and [0044] R.sub.11 to R.sub.18 may each independently be the same as described herein with respect to R.sub.1.

[0045] In one or more embodiments, the amine-containing compound represented by Formula 1 may be a compound represented by Formula 1-2.

[0046] In one or more embodiments, R.sub.14 may be hydrogen, deuterium, a C.sub.1-C.sub.10 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.6 heterocycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.6 heterocycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 aryl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.30 heteroaryl group unsubstituted or substituted with at least one R.sub.10a, a monovalent non-aromatic condensed polycyclic group unsubstituted or substituted with at least one R.sub.10a, a monovalent non-aromatic condensed heteropolycyclic group unsubstituted or substituted with at least one R.sub.10a, Si(Q.sub.1)(Q.sub.2)(Q.sub.3), B(Q.sub.1)(Q.sub.2), N(Q.sub.1)(Q.sub.2), P(Q.sub.1)(Q.sub.2), C(O)(Q.sub.1), S(O)(Q.sub.1), S(O).sub.2(Q.sub.1), P(O)(Q.sub.1)(Q.sub.2), or P(S)(Q.sub.1)(Q.sub.2). Q.sub.1, Q.sub.2, and Q.sub.3 may each independently be the same as described herein.

[0047] In one or more embodiments, Ar.sub.21 may be a benzene group, a naphthalene group, a phenanthrene group, a fluoranthene group, a triphenylene group, a pyrene group, a chrysene group, an indene group, a fluorene group, a spiro-bifluorene group, a benzofluorene group, a dibenzofluorene group, an indole group, a pyridine group, a pyrimidine group, a carbazole group, a benzocarbazole group, a dibenzocarbazole group, a furan group, a benzofuran group, a dibenzofuran group, a naphthofuran group, a benzonaphthofuran group, a dinaphthofuran group, a thiophene group, a benzothiophene group, a dibenzothiophene group, a naphthothiophene group, a benzonaphthothiophene group, or a dinaphthothiophene group.

[0048] In one or more embodiments, a group represented by

##STR00005##

may be a group represented by Formula 2A or 2B:

##STR00006## [0049] wherein, in Formulae 2A and 2B, R.sub.21 to R.sub.28 may each independently be the same as described herein with respect to R.sub.2, and [0050] * indicates a binding site to a neighboring atom.

[0051] In one or more embodiments, a group represented by

##STR00007##

may be a group represented by Formula 2A.

[0052] In one or more embodiments, in Formula 2A, R.sub.21 or R.sub.23 may be a C.sub.6-C.sub.60 aryl group unsubstituted or substituted with at least one R.sub.10a.

[0053] In one or more embodiments, in Formula 2A, R.sub.21 or R.sub.23 may be a phenyl group unsubstituted or substituted with at least one R.sub.10a.

[0054] In one or more embodiments, in Formula 2A, R.sub.21 may be a C.sub.6-C.sub.60 aryl group unsubstituted or substituted with at least one R.sub.10a, and

[0055] R.sub.23 to R.sub.28 may each independently be hydrogen, deuterium, a C.sub.1-C.sub.10 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.6 heterocycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, or a C.sub.1-C.sub.6 heterocycloalkenyl group unsubstituted or substituted with at least one R.sub.10a.

[0056] In one or more embodiments, in Formula 2A, R.sub.21 may be a phenyl group unsubstituted or substituted with at least one R.sub.10a, and

[0057] R.sub.23 to R.sub.28 may each independently be hydrogen, deuterium, a C.sub.1-C.sub.10 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.6 heterocycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, or a C.sub.1-C.sub.6 heterocycloalkenyl group unsubstituted or substituted with at least one R.sub.10a.

[0058] In one or more embodiments, in Formula 2A, R.sub.23 may be a C.sub.6-C.sub.60 aryl group unsubstituted or substituted with at least one R.sub.10a, and

[0059] R.sub.21 and R.sub.24 to R.sub.28 may each independently be hydrogen, deuterium, a C.sub.1-C.sub.10 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.6 heterocycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, or a C.sub.1-C.sub.6 heterocycloalkenyl group unsubstituted or substituted with at least one R.sub.10a.

[0060] In one or more embodiments, in Formula 2A, R.sub.23 may be a phenyl group unsubstituted or substituted with at least one R.sub.10a, and

[0061] R.sub.21 and R.sub.24 to R.sub.28 may each independently be hydrogen, deuterium, a C.sub.1-C.sub.10 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.6 heterocycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, or a C.sub.1-C.sub.6 heterocycloalkenyl group unsubstituted or substituted with at least one R.sub.10a.

[0062] In one or more embodiments, a group represented by

##STR00008##

may be a group represented by Formula 2B.

[0063] In one or more embodiments, in Formula 2B, R.sub.22 may be a C.sub.6-C.sub.60 aryl group unsubstituted or substituted with at least one R.sub.10a, and

[0064] R.sub.23 to R.sub.28 may each independently be hydrogen, deuterium, a C.sub.1-C.sub.10 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.6 heterocycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, or a C.sub.1-C.sub.6 heterocycloalkenyl group unsubstituted or substituted with at least one R.sub.10a.

[0065] In one or more embodiments, in Formula 2B, R.sub.22 may be a phenyl group unsubstituted or substituted with at least one R.sub.10a, and

[0066] R.sub.23 to R.sub.28 may each independently be hydrogen, deuterium, a C.sub.1-C.sub.10 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.10 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.6 heterocycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.6 cycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, or a C.sub.1-C.sub.6 heterocycloalkenyl group unsubstituted or substituted with at least one R.sub.10a.

[0067] In Formula 1, m2 may be an integer from 0 to 5. When m2 is 0, a group represented by *-(L.sub.2).sub.m2-* may be a single bond.

[0068] In one or more embodiments, m2 may be 0, 1, or 2.

[0069] In Formula 1, L.sub.2 may be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a.

[0070] In one or more embodiments, L.sub.2 may be a benzene group unsubstituted or substituted with at least one R.sub.10a, a naphthalene group unsubstituted or substituted with at least one R.sub.10a, an anthracene group unsubstituted or substituted with at least one R.sub.10a, or a phenanthrene group unsubstituted or substituted with at least one R.sub.10a.

[0071] In Formula 1, L.sub.3 may be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a.

[0072] In one or more embodiments, L.sub.3 may be a benzene group unsubstituted or substituted with at least one R.sub.10a, a naphthalene group unsubstituted or substituted with at least one R.sub.10a, an anthracene group unsubstituted or substituted with at least one R.sub.10a, or a phenanthrene group unsubstituted or substituted with at least one R.sub.10a.

[0073] In one or more embodiments, L.sub.3 may be a group represented by any one selected from among Formulae 3A to 3J:

##STR00009## ##STR00010##

[0074] In Formulae 3A to 3J, Z.sub.31 to Z.sub.38 may each independently be the same as described herein with respect to R.sub.10a, and

[0075] * and * may each independently indicate a binding site to a neighboring atom.

[0076] In Formula 1, m3 may be 1, 3, or 4.

[0077] In one or more embodiments, m3 may not be 2.

[0078] In one or more embodiments, m3 may not be 0.

[0079] Ar.sub.31 and Ar.sub.32 may each independently be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a.

[0080] In one or more embodiments, Ar.sub.31 and Ar.sub.32 may each independently be a C.sub.6-C.sub.30 aryl group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.30 heteroaryl group unsubstituted or substituted with at least one R.sub.10a.

[0081] In one or more embodiments, Ar.sub.31 and Ar.sub.32 may each independently be a phenyl group or a naphthyl group, each unsubstituted or substituted with at least one R.sub.10a.

[0082] In one or more embodiments, Ar.sub.31 and Ar.sub.32 may each independently be unsubstituted or substituted with: [0083] deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, or a nitro group; [0084] a C.sub.1-C.sub.10 alkyl group, a C.sub.2-C.sub.10 alkenyl group, a C.sub.2-C.sub.10 alkynyl group, or a C.sub.1-C.sub.10 alkoxy group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, or any combination thereof; [0085] a C.sub.1-C.sub.10 cycloalkyl group, a C.sub.2-C.sub.10 cycloalkenyl group, a phenyl group, or a naphthyl group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.1-C.sub.10 alkyl group, a C.sub.2-C.sub.10 alkenyl group, a C.sub.2-C.sub.10 alkynyl group, a C.sub.1-C.sub.10 alkoxy group, or any combination thereof; or [0086] any combination thereof.

[0087] In Formula 1, R.sub.1, R.sub.2, R.sub.4, R.sub.5, and R.sub.6 may each independently be hydrogen, deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a C.sub.1-C.sub.60 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.60 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.60 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 alkoxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.10 cycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.10 heterocycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.10 cycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.10 heterocycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 aryl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 aryloxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 arylthio group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroaryl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroaryloxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroarylthio group unsubstituted or substituted with at least one R.sub.10a, a monovalent non-aromatic condensed polycyclic group unsubstituted or substituted with at least one R.sub.10a, a monovalent non-aromatic condensed heteropolycyclic group unsubstituted or substituted with at least one R.sub.10a, Si(Q.sub.1)(Q.sub.2)(Q.sub.3), B(Q.sub.1)(Q.sub.2), N(Q.sub.1)(Q.sub.2), P(Q.sub.1)(Q.sub.2), C(O)(Q.sub.1), S(O)(Q.sub.1), S(O).sub.2(Q.sub.1), P(O)(Q.sub.1)(Q.sub.2), or P(S)(Q.sub.1)(Q.sub.2).

[0088] Neighboring two or more selected from among R.sub.1, R.sub.2, R.sub.4, R.sub.5, and R.sub.6 may optionally be bonded to each other to form a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a.

[0089] In Formula 1, n1 and n2 may each independently be an integer from 0 to 15, [0090] when n1 is an integer of 2 or more, a plurality of R.sub.1(s) may be identical to or different from each other, and [0091] when n2 is an integer of 2 or more, a plurality of R.sub.2(s) may be identical to or different from each other.

[0092] In Formula 1, R.sub.10a may be: [0093] deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, or a nitro group; [0094] a C.sub.1-C.sub.60 alkyl group, a C.sub.2-C.sub.60 alkenyl group, a C.sub.2-C.sub.60 alkynyl group, or a C.sub.1-C.sub.60 alkoxy group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, Si(Q.sub.11)(Q.sub.12)(Q.sub.13), N(Q.sub.11)(Q.sub.12), B(Q.sub.11)(Q.sub.12), C(O)(Q.sub.11), S(O).sub.2(Q.sub.11), P(O)(Q.sub.11)(Q.sub.12), or any combination thereof; [0095] a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, or a C.sub.6-C.sub.60 arylthio group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.1-C.sub.60 alkyl group, a C.sub.2-C.sub.60 alkenyl group, a C.sub.2-C.sub.60 alkynyl group, a C.sub.1-C.sub.60 alkoxy group, a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, Si(Q.sub.21)(Q.sub.22)(Q.sub.23), N(Q.sub.21)(Q.sub.22), B(Q.sub.21)(Q.sub.22), C(O)(Q.sub.21), S(O).sub.2(Q.sub.21), P(O)(Q.sub.21)(Q.sub.22), or any combination thereof; or [0096] Si(Q.sub.31)(Q.sub.32)(Q.sub.33), N(Q.sub.31)(Q.sub.32), B(Q.sub.31)(Q.sub.32), C(O)(Q.sub.31), S(O).sub.2(Q.sub.31), or P(O)(Q.sub.31)(Q.sub.32), [0097] Q.sub.1 to Q.sub.3, Q.sub.11 to Q.sub.13, Q.sub.21 to Q.sub.23, and Q.sub.31 to Q.sub.33 may each independently be: hydrogen; deuterium; F; Cl; Br; I; a hydroxyl group; a cyano group; a nitro group; a C.sub.1-C.sub.60 alkyl group; a C.sub.2-C.sub.60 alkenyl group; a C.sub.2-C.sub.60 alkynyl group; a C.sub.1-C.sub.60 alkoxy group; or a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.60 heterocyclic group, each unsubstituted or substituted with deuterium, F, a cyano group, a C.sub.1-C.sub.60 alkyl group, a C.sub.1-C.sub.60 alkoxy group, a phenyl group, a biphenyl group, or any combination thereof, and [0098] * and * may each independently indicate a binding site to a neighboring atom.

[0099] In one or more embodiments, the amine-containing compound represented by Formula 1 may be one of (e.g., one selected from among) Compounds 1 to 182; however, embodiments of the present disclosure are not limited thereto:

##STR00011## ##STR00012## ##STR00013## ##STR00014## ##STR00015## ##STR00016## ##STR00017## ##STR00018## ##STR00019## ##STR00020## ##STR00021## ##STR00022## ##STR00023## ##STR00024## ##STR00025## ##STR00026## ##STR00027## ##STR00028## ##STR00029## ##STR00030## ##STR00031## ##STR00032## ##STR00033## ##STR00034## ##STR00035## ##STR00036## ##STR00037## ##STR00038## ##STR00039## ##STR00040## ##STR00041##

##STR00042## ##STR00043## ##STR00044## ##STR00045## ##STR00046## ##STR00047## ##STR00048## ##STR00049## ##STR00050## ##STR00051## ##STR00052## ##STR00053## ##STR00054## ##STR00055## ##STR00056## ##STR00057## ##STR00058## ##STR00059## ##STR00060## ##STR00061## ##STR00062## ##STR00063## ##STR00064## ##STR00065##

##STR00066##

[0100] The amine-containing compound represented by Formula 1 may satisfy a structure in which a group represented by

##STR00067##

a carbazole group, a fluorene group, a dibenzofuran group, or a dibenzothiophene group is introduced into diamine, and the charge transport characteristics of the amine-containing compound may be improved by such a structure. Accordingly, the exciton generation efficiency in an emission layer may be improved.

[0101] Although it is not limited by a particular theory, when amine-containing compounds of the present disclosure, such as Examples of the present disclosure, are utilized in a hole transport layer, a substituent may be changed diversely between a first electrode and a second electrode, which leads to one or more suitable changes in a highest occupied molecular orbital (HOMO) energy level. Thus, when the amine-containing compounds of the present disclosure, such as Examples of the present disclosure, are utilized in a hole transport layer, by diversely changing a hole injection barrier of the hole transport layer, the exciton generation efficiency in an emission layer may be increased.

[0102] The amine-containing compounds of the present disclosure, such as Examples of the present disclosure, may widen a bandgap by employing a structure in which two amines are linked to each other, and as the amine-containing compounds have a tricyclic group such as a fluorene group, a carbazole group, etc., polarons may be stabilized to provide long lifespan of a light-emitting device. Moreover, an increased hopping rate of charges may lead to improvement in charge mobility. In addition, by introducing a substituent into a naphthyl group, color coordinates may be improved to emit deep blue light, and the structural stability of compound may be secured. By applying this to the emission layer of a light-emitting device, the luminescence efficiency and device lifespan may be improved.

[0103] Accordingly, when the amine-containing compound represented by Formula 1 is applied to an organic light-emitting device, the device efficiency, driving voltage, and lifespan characteristics may be significantly enhanced. For example, by including the amine-containing compound represented by Formula 1 in a hole transport layer, an organic light-emitting device having high efficiency, low driving voltage, and long lifespan may be implemented.

[0104] Synthesis methods of the amine-containing compound represented by Formula 1 may be recognizable by one of ordinary skill in the art by referring to Examples provided herein.

[0105] According to one or more embodiments of the present disclosure, an organic light-emitting device may include: a first electrode; a second electrode facing the first electrode; an interlayer between the first electrode and the second electrode and including an emission layer; and at least one amine-containing compound described above.

[0106] In one or more embodiments, the first electrode may be an anode, [0107] the second electrode may be a cathode, [0108] the interlayer may further include a hole transport region between the first electrode and the emission layer and an electron transport region between the emission layer and the second electrode, [0109] the hole transport region may include at least one selected from among a hole injection layer, a hole transport layer, a buffer layer, an emission auxiliary layer, and an electron blocking layer, and [0110] the electron transport region may include at least one selected from among a hole blocking layer, an electron transport layer, and an electron injection layer.

[0111] According to one or more embodiments, the amine-containing compound may be included in the interlayer.

[0112] According to one or more embodiments, the amine-containing compound may be included in the hole transport region.

[0113] According to one or more embodiments, the amine-containing compound may be included in the hole transport layer. The hole transport layer may be in direct contact with the emission layer.

[0114] According to one or more embodiments, the organic light-emitting device may further include a capping layer arranged outside of (e.g., on) the first electrode, and the amine-containing compound may be included in the capping layer.

[0115] According to one or more embodiments, the organic light-emitting device may further include a first capping layer arranged outside of (e.g., on) the first electrode and/or a second capping layer arranged outside of (e.g., on) the second electrode, and the amine-containing compound may be included in the first capping layer and/or the second capping layer.

[0116] According to one or more embodiments of the present disclosure, an electronic apparatus may include the organic light-emitting device. The electronic apparatus may further include a thin-film transistor. In one or more embodiments, the electronic apparatus may further include a thin-film transistor including a source electrode and a drain electrode, and the first electrode of the organic light-emitting device may be electrically connected to the source electrode or the drain electrode. In one or more embodiments, the electronic apparatus may further include a color filter, a color conversion layer, a touch screen layer, a polarizing layer, or any combination thereof. For more details on the electronic apparatus, related descriptions provided herein may be referred to.

[0117] According to one or more embodiments of the present disclosure, electronic equipment may include the organic light-emitting device.

[0118] For example, the electronic equipment may be at least one of a flat panel display, a curved display, a computer monitor, a medical monitor, a TV, a billboard, indoor or outdoor illuminations and/or signal light, a head-up display, a fully or partially transparent display, a flexible display, a rollable display, a foldable display, a stretchable display, a laser printer, a phone, a cell phone, a tablet, a phablet, a personal digital assistant (PDA), a wearable device, laptop computers, digital cameras, camcorders, viewfinders, micro displays, 3D displays, virtual or augmented reality displays, vehicles, a video wall including multiple displays tiled together, a theater or stadium screen, a phototherapy device, or a signage.

Description of FIG. 1

[0119] FIG. 1 is a schematic cross-sectional view of an organic light-emitting device 10 according to one or more embodiments. The organic light-emitting device 10 may include a first electrode 110, an interlayer 130, and a second electrode 150.

[0120] Hereinafter, the structure of the organic light-emitting device 10 according to one or more embodiments and a method of manufacturing the organic light-emitting device 10 will be described with reference to FIG. 1.

First Electrode 110

[0121] In FIG. 1, in one or more embodiments, a substrate may be additionally provided and located under the first electrode 110 and/or on the second electrode 150. As the substrate, a glass substrate or a plastic substrate may be utilized. In one or more embodiments, the substrate may be a flexible substrate, and may include plastics with excellent or suitable heat resistance and durability, such as polyimide, polyethylene terephthalate (PET), polycarbonate, polyethylene naphthalate, polyarylate (PAR), polyetherimide, or any combination thereof.

[0122] The first electrode 110 may be formed by, for example, depositing or sputtering a material for forming the first electrode 110 on the substrate. When the first electrode 110 is an anode, a material for forming the first electrode 110 may be a high-work function material that facilitates injection of holes.

[0123] The first electrode 110 may be a reflective electrode, a semi-transmissive electrode, or a transmissive electrode. In one or more embodiments, when the first electrode 110 is a transmissive electrode, a material for forming the first electrode 110 may include indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO.sub.2), zinc oxide (ZnO), or any combination thereof. In one or more embodiments, when the first electrode 110 is a semi-transmissive electrode or a reflective electrode, a material for forming the first electrode 110 may include magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (AlLi), calcium (Ca), magnesium-indium (MgIn), magnesium-silver (MgAg), or any combination thereof.

[0124] The first electrode 110 may have a single-layered structure including (e.g., consisting of) a single layer or a multi-layered structure including a plurality of layers. For example, in some embodiments, the first electrode 110 may have a three-layered structure of ITO/Ag/ITO.

Interlayer 130

[0125] The interlayer 130 may be on the first electrode 110. The interlayer 130 may include an emission layer.

[0126] In one or more embodiments, the interlayer 130 may further include a hole transport region between the first electrode 110 and the emission layer, and an electron transport region between the emission layer and the second electrode 150.

[0127] In one or more embodiments, the interlayer 130 may further include, in addition to one or more suitable organic materials, a metal-containing compound such as an organometallic compound, an inorganic material such as a quantum dot, and/or the like.

[0128] In one or more embodiments, the interlayer 130 may include, i) two or more emitting units sequentially stacked between the first electrode 110 and the second electrode 150, and ii) a charge generation layer between the two or more emitting units. When the interlayer 130 includes the two or more emitting units and the charge generation layer, the organic light-emitting device 10 may be a tandem organic light-emitting device.

Hole Transport Region in Interlayer 130

[0129] The hole transport region may have: i) a single-layered structure including (e.g., consisting of) a single layer including (e.g., consisting of) a single material, ii) a single-layered structure including (e.g., consisting of) a single layer including (e.g., consisting of) a plurality of different materials, or iii) a multi-layered structure including a plurality of layers including different materials.

[0130] The hole transport region may include a hole injection layer, a hole transport layer, an emission auxiliary layer, an electron-blocking layer, or any combination thereof.

[0131] For example, in one or more embodiments, the hole transport region may have a multi-layered structure including a hole injection layer/hole transport layer structure, a hole injection layer/hole transport layer/emission auxiliary layer structure, a hole injection layer/emission auxiliary layer structure, a hole transport layer/emission auxiliary layer structure, or a hole injection layer/hole transport layer/electron-blocking layer structure, the constituent layers of each structure being stacked sequentially from the first electrode 110 in the stated order.

[0132] In one or more embodiments, the hole transport region may include an amine group-containing compound, for example, the amine-containing compound of one or more embodiments of the present disclosure. For example, in some embodiments, the hole transport region may include a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof:

##STR00068## [0133] wherein, in Formulae 201 and 202, L.sub.201 to L.sub.204 may each independently be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, [0134] L.sub.205 may be *O*, *S*, *N(Q.sub.201)-*, a C.sub.1-C.sub.20 alkylene group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.20 alkenylene group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a, or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, [0135] xa1 to xa4 may each independently be an integer from 0 to 5, [0136] xa5 may be an integer from 1 to 10, [0137] R.sub.201 to R.sub.204 and Q.sub.201 may each independently be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, [0138] R.sub.201 and R.sub.202 may optionally be linked to each other via a single bond, a C.sub.1-C.sub.5 alkylene group unsubstituted or substituted with at least one R.sub.10a, or a C.sub.2-C.sub.5 alkenylene group unsubstituted or substituted with at least one R.sub.10a, to form a C.sub.8-C.sub.60 polycyclic group (for example, a carbazole group and/or the like) unsubstituted or substituted with at least one R.sub.10a (for example, see Compound HT16), [0139] R.sub.203 and R.sub.204 may optionally be linked to each other via a single bond, a C.sub.1-C.sub.5 alkylene group unsubstituted or substituted with at least one R.sub.10a, or a C.sub.2-C.sub.5 alkenylene group unsubstituted or substituted with at least one R.sub.10a, to form a C.sub.8-C.sub.60 polycyclic group unsubstituted or substituted with at least one R.sub.10a, and [0140] na1 may be an integer from 1 to 4.

[0141] For example, in some embodiments, each of Formulae 201 and 202 may include at least one selected from groups represented by Formulae CY201 to CY217:

##STR00069## ##STR00070## ##STR00071## ##STR00072## ##STR00073## ##STR00074## ##STR00075##

[0142] In Formulae CY201 to CY217, R.sub.10b and R.sub.10c may each be the same as described with respect to R.sub.10a, ring CY201 to ring CY204 may each independently be a C.sub.3-C.sub.20 carbocyclic group or a C.sub.1-C.sub.20 heterocyclic group, and at least one hydrogen in Formulae CY201 to CY217 may be unsubstituted or substituted with R.sub.10a.

[0143] In one or more embodiments, ring CY201 to ring CY204 in Formulae CY201 to CY217 may each independently be a benzene group, a naphthalene group, a phenanthrene group, or an anthracene group.

[0144] In one or more embodiments, each of Formulae 201 and 202 may include at least one selected from groups represented by Formulae CY201 to CY203.

[0145] In one or more embodiments, Formula 201 may include at least one selected from the groups represented by Formulae CY201 to CY203 and at least one selected from the groups represented by Formulae CY204 to CY217.

[0146] In one or more embodiments, in Formula 201, xa1 may be 1, R.sub.201 may be a group represented by one selected from Formulae CY201 to CY203, xa2 may be 0, and R.sub.202 may be a group represented by one selected from Formulae CY204 to CY207.

[0147] In one or more embodiments, each of Formulae 201 and 202 may not include (e.g., may exclude) a group represented by one selected from Formulae CY201 to CY203.

[0148] In one or more embodiments, each of Formulae 201 and 202 may not include (e.g., may exclude) a group represented by one selected from Formulae CY201 to CY203, and may include at least one selected from the groups represented by Formulae CY204 to CY217.

[0149] In one or more embodiments, each of Formulae 201 and 202 may not include (e.g., may exclude) a group represented by one selected from Formulae CY201 to CY217. In present disclosure, not include a or any component exclude a or any component, component-free, and/or the like refers to that the component not being added, selected or utilized as a component in the composition/element, but, in some embodiments, the component of less than a suitable amount may still be included due to other impurities and/or external factors.

[0150] In one or more embodiments, the hole transport region may include at least one selected from among Compounds HT1 to HT46, 4,4,4-[tris(3-methylphenyl)phenylamino] triphenylamine (m-MTDATA), 4,4,4-tris(N,N-diphenylamino)triphenylamine (TDATA), 4,4,4-tris[N-(2-naphthyl)-N-phenylamino]-triphenylamine (2-TNATA), N,N-di(naphthalen-1-yl)-N,N-diphenyl-benzidine (NPB(NPD)), -NPB, N,N-bis(3-methylphenyl)-N,N-diphenyl-[1,1-biphenyl]-4,4-diamine (TPD), Spiro-TPD, Spiro-NPB, methylated NPB, 4,4-cyclohexylidene bis[N,N-bis(4-methylphenyl)benzenamine] (TAPC), 4,4-bis[N,N-(3-tolyl)amino]-3,3-dimethylbiphenyl (HMTPD), 4,4,4-tris(N-carbazolyl)triphenylamine (TCTA), polyaniline/dodecylbenzenesulfonic acid (PANI/DBSA), poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) (PEDOT/PSS), polyaniline/camphor sulfonic acid (PANI/CSA), polyaniline/poly(4-styrenesulfonate) (PANI/PSS), or any combination thereof:

##STR00076## ##STR00077## ##STR00078## ##STR00079## ##STR00080## ##STR00081## ##STR00082## ##STR00083## ##STR00084## ##STR00085##

[0151] A thickness of the hole transport region may be in a range of about 50 to about 10,000 , for example, about 100 to about 4,000 . When the hole transport region includes a hole injection layer, a hole transport layer, or any combination thereof, a thickness of the hole injection layer may be in a range of about 100 to about 9,000 , for example, about 100 to about 1,000 , and a thickness of the hole transport layer may be in a range of about 50 to about 2,000 , for example, about 100 to about 1,500 . When the thicknesses of the hole transport region, the hole injection layer, and the hole transport layer are within these ranges, satisfactory hole transporting characteristics may be obtained without a substantial increase in driving voltage.

[0152] The emission auxiliary layer may increase light-emission efficiency by compensating for an optical resonance distance according to the wavelength of light emitted by the emission layer, and the electron-blocking layer may block or reduce the leakage of electrons from the emission layer to the hole transport region. Materials that may be included in the hole transport region may be included in the emission auxiliary layer and the electron-blocking layer.

p-Dopant

[0153] In one or more embodiments, the hole transport region may further include, in addition to the aforementioned materials, a charge-generation material for the improvement of conductive properties. The charge-generation material may be substantially uniformly or non-uniformly dispersed in the hole transport region (for example, in the form of a single layer including (e.g., consisting of) a charge-generation material).

[0154] The charge-generation material may be, for example, a p-dopant.

[0155] For example, in some embodiments, a lowest unoccupied molecular orbital (LUMO) energy level of the p-dopant may be 3.5 eV or less.

[0156] In one or more embodiments, the p-dopant may include a quinone derivative, a cyano group-containing compound, a compound including element EL1 and element EL2, or any combination thereof.

[0157] Non-limiting examples of the quinone derivative may be tetracyanoquinodimethane (TCNQ), 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ), etc.

[0158] Non-limiting examples of the cyano group-containing compound may be dipyrazino[2,3-f:2,3-h] quinoxaline-2,3,6,7,10,11-hexacarbonitrile (HAT-CN), and a compound represented by Formula 221:

##STR00086##

[0159] In Formula 221, R.sub.221 to R.sub.223 may each independently be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, and

[0160] at least one selected from among R.sub.221 to R.sub.223 may each independently be a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.60 heterocyclic group, each substituted with a cyano group; F; Cl; Br; I; a C.sub.1-C.sub.20 alkyl group substituted with a cyano group, F, Cl, Br, I, or any combination thereof; or any combination thereof.

[0161] In the compound including element EL1 and element EL2, element EL1 may be metal, metalloid, or any combination thereof, and element EL2 may be non-metal, metalloid, or any combination thereof.

[0162] Non-limiting examples of the metal may be an alkali metal (for example, lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), etc.); an alkaline earth metal (for example, beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), etc.); a transition metal (for example, titanium (Ti), zirconium (Zr), hafnium (Hf), vanadium (V), niobium (Nb), tantalum (Ta), chromium (Cr), molybdenum (Mo), tungsten (W), manganese (Mn), technetium (Tc), rhenium (Re), iron (Fe), ruthenium (Ru), osmium (Os), cobalt (Co), rhodium (Rh), iridium (Ir), nickel (Ni), palladium (Pd), platinum (Pt), copper (Cu), silver (Ag), gold (Au), etc.); a post-transition metal (for example, zinc (Zn), indium (In), tin (Sn), etc.); and/or a lanthanide metal (for example, lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), etc.).

[0163] Non-limiting examples of the metalloid may be silicon (Si), antimony (Sb), and/or tellurium (Te).

[0164] Non-limiting examples of the non-metal may be oxygen (O) and/or a halogen (for example, F, Cl, Br, I, etc.).

[0165] Non-limiting examples of the compound including element EL1 and element EL2 may be metal oxides, metal halides (for example, metal fluorides, metal chlorides, metal bromides, or metal iodides), metalloid halides (for example, metalloid fluorides, metalloid chlorides, metalloid bromides, or metalloid iodides), metal tellurides, or any combination thereof.

[0166] Non-limiting examples of the metal oxide may be tungsten oxides (for example, WO, W.sub.2O.sub.3, WO.sub.2, WO.sub.3, W.sub.2O.sub.5, etc.), vanadium oxides (for example, VO, V.sub.2O.sub.3, VO.sub.2, V.sub.2O.sub.5, etc.), molybdenum oxides (MoO, Mo.sub.2O.sub.3, MoO.sub.2, MoO.sub.3, Mo.sub.2O.sub.5, etc.), and/or rhenium oxides (for example, ReO.sub.3, etc.).

[0167] Non-limiting examples of the metal halide may be alkali metal halides, alkaline earth metal halides, transition metal halides, post-transition metal halides, and/or lanthanide metal halides.

[0168] Non-limiting examples of the alkali metal halide may be LiF, NaF, KF, RbF, CsF, LiCl, NaCl, KCl, RbCl, CsCl, LiBr, NaBr, KBr, RbBr, CsBr, LiI, NaI, KI, RbI, and/or CsI.

[0169] Non-limiting examples of the alkaline earth metal halide may be BeF.sub.2, MgF.sub.2, CaF.sub.2, SrF.sub.2, BaF.sub.2, BeCl.sub.2, MgCl.sub.2, CaCl.sub.2), SrCl.sub.2, BaCl.sub.2, BeBr.sub.2, MgBr.sub.2, CaBr.sub.2, SrBr.sub.2, BaBr.sub.2, BeI.sub.2, MgI.sub.2, CaI.sub.2, SrI.sub.2, and/or BaI.sub.2.

[0170] Non-limiting examples of the transition metal halide may be titanium halides (for example, TiF.sub.4, TiCl.sub.4, TiBr.sub.4, TiI.sub.4, etc.), zirconium halides (for example, ZrF.sub.4, ZrCl.sub.4, ZrBr.sub.4, ZrI.sub.4, etc.), hafnium halides (for example, HfF.sub.4, HfCl.sub.4, HfBr.sub.4, HfI.sub.4, etc.), vanadium halides (for example, VF.sub.3, VCl.sub.3, VBr.sub.3, VI.sub.3, etc.), niobium halides (for example, NbF.sub.3, NbCl.sub.3, NbBr.sub.3, NbI.sub.3, etc.), tantalum halides (for example, TaF.sub.3, TaCl.sub.3, TaBr.sub.3, TaI.sub.3, etc.), chromium halides (for example, CrF.sub.3, CrO.sub.3, CrBr.sub.3, CrI.sub.3, etc.), molybdenum halides (for example, MoF.sub.3, MoCl.sub.3, MoBr.sub.3, MoI.sub.3, etc.), tungsten halides (for example, WF.sub.3, WCl.sub.3, WBr.sub.3, WI.sub.3, etc.), manganese halides (for example, MnF.sub.2, MnCl.sub.2, MnBr.sub.2, MnI.sub.2, etc.), technetium halides (for example, TcF.sub.2, TcCl.sub.2, TcBr.sub.2, TcI.sub.2, etc.), rhenium halides (for example, ReF.sub.2, ReCl.sub.2, ReBr.sub.2, ReI.sub.2, etc.), ferrous halides (for example, FeF.sub.2, FeCl.sub.2, FeBr.sub.2, FeI.sub.2, etc.), ruthenium halides (for example, RuF.sub.2, RuCl.sub.2, RuBr.sub.2, RuI.sub.2, etc.), osmium halides (for example, OsF.sub.2, OsCl.sub.2, OsBr.sub.2, OsI.sub.2, etc.), cobalt halides (for example, CoF.sub.2, COCl.sub.2, CoBr.sub.2, CoI.sub.2, etc.), rhodium halides (for example, RhF.sub.2, RhCl.sub.2, RhBr.sub.2, RhI.sub.2, etc.), iridium halides (for example, IrF.sub.2, IrCl.sub.2, IrBr.sub.2, IrI.sub.2, etc.), nickel halides (for example, NiF.sub.2, NiCl.sub.2, NiBr.sub.2, NiI.sub.2, etc.), palladium halides (for example, PdF.sub.2, PdCl.sub.2, PdBr.sub.2, PdI.sub.2, etc.), platinum halides (for example, PtF.sub.2, PtCl.sub.2, PtBr.sub.2, PtI.sub.2, etc.), cuprous halides (for example, CuF, CuCl, CuBr, CuI, etc.), silver halides (for example, AgF, AgCl, AgBr, AgI, etc.), and/or gold halides (for example, AuF, AuCl, AuBr, AuI, etc.).

[0171] Non-limiting examples of the post-transition metal halide may be zinc halides (for example, ZnF.sub.2, ZnCl.sub.2, ZnBr.sub.2, ZnI.sub.2, etc.), indium halides (for example, InI.sub.3, etc.), and/or tin halides (for example, SnI.sub.2, etc.).

[0172] Non-limiting examples of the lanthanide metal halide may include YbF, YbF.sub.2, YbF.sub.3, SmF.sub.3, YbCl, YbCl.sub.2, YbCl.sub.3, SmCl.sub.3, YbBr, YbBr.sub.2, YbBr.sub.3, SmBr.sub.3, YbI, YbI.sub.2, YbI.sub.3, SmI.sub.3, and/or the like.

[0173] Non-limiting examples of the metalloid halide may be antimony halides (for example, SbCl.sub.5 and/or the like) and/or the like.

[0174] Non-limiting examples of the metal telluride may be alkali metal tellurides (for example, Li.sub.2Te, Na.sub.2Te, K.sub.2Te, Rb.sub.2Te, Cs.sub.2Te, etc.), alkaline earth metal tellurides (for example, BeTe, MgTe, CaTe, SrTe, BaTe, etc.), transition metal tellurides (for example, TiTe.sub.2, ZrTe.sub.2, HfTe.sub.2, V.sub.2Te.sub.3, Nb.sub.2Te.sub.3, Ta.sub.2Te.sub.3, Cr.sub.2Te.sub.3, Mo.sub.2Te.sub.3, W.sub.2Te.sub.3, MnTe, TcTe, ReTe, FeTe, RuTe, OsTe, CoTe, RhTe, IrTe, NiTe, PdTe, PtTe, Cu.sub.2Te, CuTe, Ag.sub.2Te, AgTe, Au.sub.2Te, etc.), post-transition metal tellurides (for example, ZnTe, etc.), and/or lanthanide metal tellurides (for example, LaTe, CeTe, PrTe, NdTe, PmTe, EuTe, GdTe, TbTe, DyTe, HoTe, ErTe, TmTe, YbTe, LuTe, etc.).

Emission Layer in Interlayer 130

[0175] When the organic light-emitting device 10 is a full-color organic light-emitting device, the emission layer may be patterned into a red emission layer, a green emission layer, and/or a blue emission layer, according to a sub-pixel. In one or more embodiments, the emission layer may have a stacked structure of two or more layers selected from a red emission layer, a green emission layer, and a blue emission layer, in which the two or more layers contact each other or are separated from each other to emit white light (e.g., combined white light). In one or more embodiments, the emission layer may include two or more materials selected from a red light-emitting material, a green light-emitting material, and a blue light-emitting material, in which the two or more materials are mixed with each other in a single layer to emit white light (e.g., combined white light).

[0176] In one or more embodiments, the emission layer may include a host and a dopant. The dopant may include a phosphorescent dopant, a fluorescent dopant, or any combination thereof.

[0177] An amount of the dopant in the emission layer may be from about 0.01 part by weight to about 15 parts by weight based on 100 parts by weight of the host.

[0178] In one or more embodiments, the emission layer may include a quantum dot.

[0179] In some embodiments, the emission layer may include a delayed fluorescence material. The delayed fluorescence material may act as a host or a dopant in the emission layer.

[0180] In one or more embodiments, the emission layer may further include, in addition to a heterocyclic compound, a host, an auxiliary dopant, a sensitizer, a delayed fluorescence material, or any combination thereof. Each of the host, the auxiliary dopant, the sensitizer, the delayed fluorescence material, or any combination thereof may include at least one deuterium.

[0181] For example, in some embodiments, the emission layer may include the heterocyclic compound and the host. The host may be different from the heterocyclic compound, and the host may include an electron-transporting compound, a hole-transporting compound, a bipolar compound, or any combination thereof. The host may not include (e.g., may exclude) metal. The electron-transporting compound, the hole-transporting compound, and the bipolar compound are different from each other.

[0182] In one or more embodiments, the emission layer may include the heterocyclic compound and a host, and the host may include an electron-transporting compound and a hole-transporting compound.

[0183] In one or more embodiments, the electron-transporting compound and the hole-transporting compound may form an exciplex.

[0184] A thickness of the emission layer may be in a range of about 100 to about 1,000 , for example, about 200 to about 600 . When the thickness of the emission layer is within these ranges, excellent or suitable luminescence characteristics may be obtained without a substantial increase in driving voltage.

Host

[0185] In one or more embodiments, the host may include a compound represented by Formula 301:

[Ar.sub.301].sub.xb11-[(L.sub.301).sub.xb1-R.sub.301].sub.xb21.Formula 301

[0186] In Formula 301, Ar.sub.301 and L.sub.301 may each independently be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a,

[0187] xb11 may be 1, 2, or 3,

[0188] xb1 may be an integer from 0 to 5,

[0189] R.sub.301 may be hydrogen, deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.1-C.sub.60 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.60 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.60 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 alkoxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, Si(Q.sub.301)(Q.sub.302)(Q.sub.303), N(Q.sub.301)(Q.sub.302), B(Q.sub.301)(Q.sub.302), C(O)(Q.sub.301), S(O).sub.2(Q.sub.301), or P(O)(Q.sub.301)(Q.sub.302),

[0190] xb21 may be an integer from 1 to 5, and

[0191] Q.sub.301 to Q.sub.303 are each the same as described herein with respect to Q.sub.1.

[0192] For example, in some embodiments, when xb11 in Formula 301 is 2 or more, two or more of Ar.sub.301(s) may be linked to each other via a single bond.

[0193] In one or more embodiments, the host may include a compound represented by Formula 301-1, a compound represented by Formula 301-2, or any combination thereof:

##STR00087##

[0194] In Formulae 301-1 and 301-2, ring A.sub.301 to ring A.sub.304 may each independently be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, [0195] X.sub.301 may be O, S, N[(L.sub.304).sub.xb4-R.sub.304], C(R.sub.304)(R.sub.305), or Si(R.sub.304)(R.sub.305), [0196] xb22 and xb23 may each independently be 0, 1, or 2, [0197] L.sub.301, xb1, and R.sub.301 may each be the same as described herein, [0198] L.sub.302 to L.sub.304 may each independently be the same as described herein with respect to with L.sub.301, [0199] xb2 to xb4 may each independently be the same as described herein with respect to xb1, and [0200] R.sub.302 to R.sub.305 and R.sub.311 to R.sub.314 may each be the same as described herein with respect to R.sub.301.

[0201] In one or more embodiments, the host may include an alkaline earth metal complex, a post-transition metal complex, or any combination thereof. For example, the host may include a Be complex (for example, Compound H55), an Mg complex, a Zn complex, or any combination thereof.

[0202] In one or more embodiments, the host may include at least one selected from among Compounds H1 to H124, 9,10-di(2-naphthyl)anthracene (ADN), 2-methyl-9,10-bis(naphthalen-2-yl)anthracene (MADN), 9,10-di-(2-naphthyl)-2-t-butyl-anthracene (TBADN), 4,4-bis(N-carbazolyl)-1,1-biphenyl (CBP), 1,3-di(carbazol-9-yl)benzene (mCP), 1,3,5-tri(carbazol-9-yl)benzene (TCP), or any combination thereof:

##STR00088## ##STR00089## ##STR00090## ##STR00091## ##STR00092## ##STR00093## ##STR00094## ##STR00095## ##STR00096## ##STR00097## ##STR00098## ##STR00099## ##STR00100## ##STR00101## ##STR00102## ##STR00103## ##STR00104## ##STR00105## ##STR00106## ##STR00107## ##STR00108## ##STR00109## ##STR00110## ##STR00111## ##STR00112## ##STR00113## ##STR00114##

[0203] In one or more embodiments, the host may include a first host compound and a second host compound.

[0204] In one or more embodiments, the first host compound may be a hole-transporting host.

[0205] In one or more embodiments, the second host compound may be an electron-transporting host.

[0206] In the present disclosure, the term hole-transporting host as utilized herein refers to a compound including a hole-transporting moiety.

[0207] In the present disclosure, the term electron-transporting host as utilized herein refers to not only a compound including an electron-transporting moiety, but also a compound having bipolar properties.

[0208] The terms hole-transporting host and electron-transporting host may each be understood according to the relative difference between hole mobility and electron mobility in the hole-transporting host and the electron-transporting host. For example, even when the electron transporting host does not include an electron transporting moiety, a bipolar compound exhibiting relatively higher electron mobility than the hole transport host may be understood as an electron transporting host.

[0209] In one or more embodiments, the hole-transporting host may be represented by one selected from among Formulae 311-1 to 311-6, and the electron-transporting host may be represented by one selected from among Formulae 312-1 to 312-4 and 313:

##STR00115## ##STR00116## [0210] wherein, in Formulae 311-1 to 311-6, 312-1 to 312-4, 313, and 313A, [0211] Ar.sub.301 may be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, [0212] A.sub.301 to A.sub.304 may each independently be a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.60 heterocyclic group, [0213] X.sub.301 may be O, S, N[(L.sub.304).sub.xb4-R.sub.304], C[(L.sub.304).sub.xb4-R.sub.304][(L.sub.305).sub.xb5-R.sub.305], or Si[(L.sub.304).sub.xb4-R.sub.304][(L.sub.305).sub.xb5-R.sub.305], [0214] X.sub.302, Y.sub.301, and Y.sub.302 may each independently be a single bond, O, S, N[(L.sub.305).sub.xb5-R.sub.305], C[(L.sub.304).sub.xb4-R.sub.304][(L.sub.305).sub.xb5-R.sub.305], Si[(L.sub.304).sub.xb4-R.sub.304][(L.sub.305).sub.xb5-R.sub.305], or S(O).sub.2, [0215] xb1 to xb5 may respectively be 0, 1, 2, 3, 4, or 5, [0216] xb6 may be 1, 2, 3, 4, or 5, [0217] X.sub.321 to X.sub.328 may each independently be N or C[(L.sub.324).sub.xb24-R.sub.324], [0218] Y.sub.321 may be *O*, *S*, *N[(L.sub.325).sub.xb25-R.sub.325]*, *C[(L.sub.325).sub.xb25-R.sub.325][(L.sub.326).sub.xb26-R.sub.326]*, *C[(L.sub.325).sub.xb25-R.sub.325]=C[(L.sub.326).sub.xb26-R.sub.326]*, *C[(L.sub.325).sub.xb25-R.sub.325]=N*, or *NC[(L.sub.326).sub.xb26-R.sub.326]*, [0219] k21 may be 0, 1, or 2, wherein Y.sub.321 does not exist when k21 is 0, [0220] xb21 to xb26 may each independently be 0, 1, 2, 3, 4, or 5, [0221] A.sub.31, A.sub.32, and A.sub.34 may each independently be a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.30 heterocyclic group, [0222] A.sub.33 may be a group represented by Formula 313A, [0223] X.sub.31 may be N[(L.sub.335).sub.xb35-(R.sub.335)], O, S, Se, C[(L.sub.335).sub.xb35-(R.sub.335)][(L.sub.336).sub.xb36-(R.sub.336)], or Si[(L.sub.335).sub.xb35-(R.sub.335)][(L.sub.336).sub.xb36-(R.sub.336)], [0224] xb31 to xb36 may each independently be 0, 1, 2, 3, 4, or 5, [0225] xb42 to xb44 may each independently be 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, [0226] L.sub.301 to L.sub.306, L.sub.321 to L.sub.326, and L.sub.331 to L.sub.336 may each independently be a single bond, a C.sub.1-C.sub.20 alkylene group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.20 alkenylene group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.20 alkynylene group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.10 cycloalkylene group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.10 heterocycloalkylene group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.10 cycloalkenylene group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.10 heterocycloalkenylene group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6C.sub.60 arylene group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroarylene group unsubstituted or substituted with at least one R.sub.10a, a divalent non-aromatic condensed polycyclic group unsubstituted or substituted with at least one R.sub.10a, or a divalent non-aromatic condensed heteropolycyclic group unsubstituted or substituted with at least one R.sub.10a, [0227] R.sub.301 to R.sub.305, R.sub.311 to R.sub.314, R.sub.321 to R.sub.326, and R.sub.331 to R.sub.336 may each independently be hydrogen, deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a C.sub.1-C.sub.60 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.60 alkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.2-C.sub.60 alkynyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 alkoxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.10 cycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.10 heterocycloalkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.10 cycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.10 heterocycloalkenyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 aryl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 aryloxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.6-C.sub.60 arylthio group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroaryl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroaryloxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heteroarylthio group unsubstituted or substituted with at least one R.sub.10a, a monovalent non-aromatic condensed polycyclic group unsubstituted or substituted with at least one R.sub.10a, a monovalent non-aromatic condensed heteropolycyclic group unsubstituted or substituted with at least one R.sub.10a, Si(Q.sub.1)(Q.sub.2)(Q.sub.3), B(Q.sub.1)(Q.sub.2), N(Q.sub.1)(Q.sub.2), P(Q.sub.1)(Q.sub.2), C(O)(Q.sub.1), S(O)(Q.sub.1), S(O).sub.2(Q.sub.1), P(O)(Q.sub.1)(Q.sub.2), or P(S)(Q.sub.1)(Q.sub.2), [0228] two or more substituents selected from among R.sub.321 to R.sub.326 are optionally bonded together to form a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, [0229] R.sub.10a may be: [0230] deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, or a nitro group; [0231] a C.sub.1-C.sub.60 alkyl group, a C.sub.2-C.sub.60 alkenyl group, a C.sub.2-C.sub.60 alkynyl group, or a C.sub.1-C.sub.60 alkoxy group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, a C.sub.1-C.sub.60 heteroaryloxy group, a C.sub.1-C.sub.60 heteroarylthio group, Si(Q.sub.11)(Q.sub.12)(Q.sub.13), N(Q.sub.11)(Q.sub.12), B(Q.sub.11)(Q.sub.12), C(O)(Q.sub.11), S(O).sub.2(Q.sub.11), P(O)(Q.sub.11)(Q.sub.12), or any combination thereof; [0232] a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, a C.sub.1-C.sub.60 heteroaryloxy group, or a C.sub.1-C.sub.60 heteroarylthio group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.1-C.sub.60 alkyl group, a C.sub.2-C.sub.60 alkenyl group, a C.sub.2-C.sub.60 alkynyl group, a C.sub.1-C.sub.60 alkoxy group, a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, a C.sub.1-C.sub.60 heteroaryloxy group, a C.sub.1-C.sub.60 heteroarylthio group, Si(Q.sub.21)(Q.sub.22)(Q.sub.23), N(Q.sub.21)(Q.sub.22), B(Q.sub.21)(Q.sub.22), C(O)(Q.sub.21), S(O).sub.2(Q.sub.21), P(O)(Q.sub.21)(Q.sub.22), or any combination thereof; or [0233] Si(Q.sub.31)(Q.sub.32)(Q.sub.33), N(Q.sub.31)(Q.sub.32), B(Q.sub.31)(Q.sub.32), C(O)(Q.sub.31), S(O).sub.2(Q.sub.31), or P(O)(Q.sub.31)(Q.sub.32), and [0234] Q.sub.1 to Q.sub.3, Q.sub.11 to Q.sub.13, Q.sub.21 to Q.sub.23, and Q.sub.31 to Q.sub.33 may each independently be: hydrogen; deuterium; F; Cl; Br; I; a hydroxyl group; a cyano group; a nitro group; a C.sub.1-C.sub.60 alkyl group; a C.sub.2-C.sub.60 alkenyl group; a C.sub.2-C.sub.60 alkynyl group; a C.sub.1-C.sub.60 alkoxy group; or a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.60 heterocyclic group, each unsubstituted or substituted with deuterium, F, a cyano group, a C.sub.1-C.sub.60 alkyl group, a C.sub.1-C.sub.60 alkoxy group, a phenyl group, a biphenyl group, or any combination thereof.

[0235] In one or more embodiments, the first host compound and the second host compound may form an exciplex.

Phosphorescent Dopant

[0236] In one or more embodiments, the emission layer may further include a phosphorescent dopant.

[0237] For example, in some embodiments, the emission layer may further include a phosphorescent dopant, and the phosphorescent dopant may serve as a sensitizer.

[0238] In one or more embodiments, the phosphorescent dopant may include at least one transition metal as a central metal.

[0239] The phosphorescent dopant may include a monodentate ligand, a bidentate ligand, a tridentate ligand, a tetradentate ligand, a pentadentate ligand, a hexadentate ligand, or any combination thereof.

[0240] The phosphorescent dopant may be electrically neutral.

[0241] In one or more embodiments, the phosphorescent dopant may be an organometallic compound.

[0242] In some embodiments, the phosphorescent dopant may include an organometallic compound represented by Formula 401:

##STR00117## [0243] wherein, in Formulae 401 and 402, M may be a transition metal (for example, iridium (Ir), platinum (Pt), palladium (Pd), osmium (Os), titanium (Ti), gold (Au), hafnium (Hf), europium (Eu), terbium (Tb), rhodium (Rh), rhenium (Re), or thulium (Tm)), [0244] L.sub.401 may be a ligand represented by Formula 402, and xc1 may be 1, 2, or 3, wherein, when xc1 is 2 or more, two or more of L.sub.401(s) may be identical to or different from each other, [0245] L.sub.402 may be an organic ligand, and xc2 may be 0, 1, 2, 3, or 4, and when xc2 is 2 or more, two or more of L.sub.402(s) may be identical to or different from each other, [0246] X.sub.401 and X.sub.402 may each independently be nitrogen or carbon, [0247] ring A.sub.401 and ring A.sub.402 may each independently be a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.60 heterocyclic group, [0248] T.sub.401 may be a single bond, *O*, *S*, *C(O)*, *N(Q.sub.411)-*, *C(Q.sub.411)(Q.sub.412)-*, *C(Q.sub.411)C(Q.sub.412)-*, *C(Q.sub.411)=*, or *C*, [0249] X.sub.403 and X.sub.404 may each independently be a chemical bond (for example, a covalent bond or a coordinate bond), O, S, N(Q.sub.413), B(Q.sub.413), P(Q.sub.413), C(Q.sub.413)(Q.sub.414), or Si(Q.sub.413) (Q.sub.414), [0250] Q.sub.411 to Q.sub.414 may each be the same as described herein with respect to Q.sub.1, [0251] R.sub.401 and R.sub.402 may each independently be hydrogen, deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.1-C.sub.20 alkyl group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.20 alkoxy group unsubstituted or substituted with at least one R.sub.10a, a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, Si(Q.sub.401)(Q.sub.402)(Q.sub.403), N(Q.sub.401)(Q.sub.402), B(Q.sub.401)(Q.sub.402), C(O)(Q.sub.401), S(O).sub.2(Q.sub.401), or P(O)(Q.sub.401)(Q.sub.402), [0252] Q.sub.401 to Q.sub.403 may each be the same as described herein with respect to Q.sub.1, [0253] xc11 and xc12 may each independently be an integer from 0 to 10, and [0254] * and * in Formula 402 each indicate a binding site to M in Formula 401.

[0255] For example, in some embodiments, in Formula 402, i) X.sub.401 may be nitrogen, and X.sub.402 may be carbon, or ii) each of X.sub.401 and X.sub.402 may be nitrogen.

[0256] In one or more embodiments, when xc1 in Formula 401 is 2 or more, two ring A.sub.401(s) among two or more of L.sub.401(s) may optionally be bonded to each other via T.sub.402, which is a linking group, and/or two ring A.sub.402(s) among two or more of L.sub.401(s) may optionally be bonded to each other via T.sub.403, which is a linking group (see Compounds PD1 to PD4 and PD7). T.sub.402 and T.sub.403 may each be the same as described herein with respect to T.sub.401.

[0257] L.sub.402 in Formula 401 may be an organic ligand. For example, L.sub.402 may include a halogen, a diketone group (for example, an acetylacetonate group), a carboxylic acid group (for example, a picolinate group), C(O), an isonitrile group, CN group, a phosphorus-containing group (for example, a phosphine group, a phosphite group, etc.), or any combination thereof.

[0258] In one or more embodiments, the phosphorescent dopant may be, for example, one selected from among Compounds PD1 to PD41 or any combination thereof:

##STR00118## ##STR00119## ##STR00120## ##STR00121## ##STR00122## ##STR00123## ##STR00124## ##STR00125## ##STR00126## ##STR00127##

Fluorescent Dopant

[0259] In one or more embodiments, the emission layer may further include a fluorescent dopant.

[0260] The fluorescent dopant may include an amine group-containing compound, for example, the amine-containing compound of one or more embodiments of the present disclosure, a styryl group-containing compound, or any combination thereof.

[0261] For example, in some embodiments, the fluorescent dopant may include a compound represented by Formula 501:

##STR00128## [0262] wherein, in Formula 501, Ar.sub.501, L.sub.501 to L.sub.503, R.sub.501, and R.sub.502 may each independently be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, [0263] xd1 to xd3 may each independently be 0, 1, 2, or 3, and [0264] xd4 may be 1, 2, 3, 4, 5, or 6.

[0265] For example, in some embodiments, Ar.sub.501 in Formula 501 may be a condensed cyclic group (for example, an anthracene group, a chrysene group, or a pyrene group) in which three or more monocyclic groups are condensed together.

[0266] In one or more embodiments, xd4 in Formula 501 may be 2.

[0267] For example, in one or more embodiments, the fluorescent dopant may include: at least one selected from among Compounds FD1 to FD36; 4,4-bis(2,2-diphenylvinyl)-1,1-biphenyl (DPVBi); 4,4-bis[4-(N,N-diphenylamino)styryl]biphenyl (DPAVBi); or any combination thereof:

##STR00129## ##STR00130## ##STR00131## ##STR00132## ##STR00133## ##STR00134##

Delayed Fluorescence Material

[0268] In one or more embodiments, the emission layer may further include a delayed fluorescence material.

[0269] In the present disclosure, the delayed fluorescence material may be selected from compounds capable of emitting delayed fluorescent light based on a delayed fluorescence emission mechanism.

[0270] The delayed fluorescence material included in the emission layer may act as a host or a dopant depending on the type or kind of other materials included in the emission layer.

[0271] In one or more embodiments, a difference between a triplet energy level of the delayed fluorescence material and a singlet energy level of the delayed fluorescence material may be about 0 eV to about 0.5 eV. When the difference between the triplet energy level of the delayed fluorescence material and the singlet energy level of the delayed fluorescence material is satisfied within the range above, up-conversion from the triplet state to the singlet state of the delayed fluorescence materials may effectively occur, and thus, the organic light-emitting device 10 may have improved luminescence efficiency.

[0272] For example, in one or more embodiments, the delayed fluorescence material may include i) a material including at least one electron donor (for example, a electron-rich C.sub.3-C.sub.60 cyclic group, such as a carbazole group) and at least one electron acceptor (for example, a sulfoxide group, a cyano group, or a electron-deficient nitrogen-containing C.sub.1-C.sub.60 cyclic group), and/or ii) a material including a C.sub.8-C.sub.60 polycyclic group in which two or more cyclic groups are condensed while sharing boron (B).

[0273] Non-limiting examples of the delayed fluorescence material may include at least one selected from among compounds DF1 to DF9:

##STR00135## ##STR00136## ##STR00137##

Quantum Dot

[0274] In one or more embodiments, the emission layer may include a quantum dot.

[0275] The term quantum dot as utilized herein refers to a crystal of a semiconductor compound, and may include any material capable of emitting light of one or more suitable emission wavelengths according to the size of the crystal.

[0276] A diameter of the quantum dot may be, for example, in a range of about 1 nm to about 10 nm. In the present disclosure, when dot, dots, or dot particles are spherical, diameter indicates a particle diameter or an average particle diameter, and when the particles are non-spherical, the diameter indicates a major axis length or an average major axis length. The diameter of the particles may be measured utilizing a scanning electron microscope or a particle size analyzer. As the particle size analyzer, for example, HORIBA, LA-950 laser particle size analyzer, may be utilized. When the size of the particles is measured utilizing a particle size analyzer, the average particle diameter is referred to as D50. D50 refers to the average diameter of particles whose cumulative volume corresponds to 50 vol % in the particle size distribution (e.g., cumulative distribution), and refers to the value of the particle size corresponding to 50% from the smallest particle when the total number of particles is 100% in the distribution curve accumulated in the order of the smallest particle size to the largest particle size.

[0277] The quantum dot may be synthesized by a wet chemical process, a metal organic chemical vapor deposition process, a molecular beam epitaxy process, or any process similar thereto.

[0278] The wet chemical process is a method including mixing a precursor material of a quantum dot with an organic solvent and then growing a quantum dot particle crystal. When the crystal grows, the organic solvent naturally acts as a dispersant coordinated on the surface of the quantum dot crystal and controls the growth of the crystal so that the growth of quantum dot particles may be controlled or selected through a process which costs lower, and is easier than vapor deposition methods, such as metal organic chemical vapor deposition (MOCVD) or molecular beam epitaxy (MBE),

[0279] The quantum dot may include Group II-VI semiconductor compounds, Group III-V semiconductor compounds, Group III-VI semiconductor compounds, Group I-III-VI semiconductor compounds, Group IV-VI semiconductor compounds, Group IV elements or compounds, or any combination thereof.

[0280] Non-limiting examples of the Group II-VI semiconductor compound may be a binary compound, such as CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, and/or MgS; a ternary compound, such as CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe, and/or MgZnS; a quaternary compound, such as CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, and/or HgZnSTe; or any combination thereof.

[0281] Non-limiting examples of the Group III-V semiconductor compound may include: a binary compound, such as GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, and/or InSb; a ternary compound, such as GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNP, InAlP, InNAs, InNSb, InPAs, and/or InPSb; a quaternary compound, such as GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, and/or InAlPSb; or any combination thereof. In some embodiments, the Group III-V semiconductor compound may further include a Group II element. Non-limiting examples of the Group III-V semiconductor compound further including a Group II element may be InZnP, InGaZnP, InAlZnP, etc.

[0282] Non-limiting examples of the Group III-VI semiconductor compound may be: a binary compound, such as GaS, GaSe, Ga.sub.2Se.sub.3, GaTe, InS, InSe, In.sub.2S.sub.3, In.sub.2Se.sub.3, and/or InTe; a ternary compound, such as InGaS.sub.3, or InGaSe.sub.3; or any combination thereof.

[0283] Non-limiting examples of the Group I-III-VI semiconductor compound may be: a ternary compound, such as AgInS, AgInS.sub.2, CuInS, CulnS.sub.2, CuGaO.sub.2, AgGaO.sub.2, and/or AgAlO.sub.2; or any combination thereof.

[0284] Non-limiting examples of the Group IV-VI semiconductor compound may be: a binary compound, such as SnS, SnSe, SnTe, PbS, PbSe, and/or PbTe; a ternary compound, such as SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, and/or SnPbTe; a quaternary compound, such as SnPbSSe, SnPbSeTe, and/or SnPbSTe; or any combination thereof.

[0285] The Group IV element or compound may include: a single element compound, such as Si or Ge; a binary compound, such as SiC or SiGe; or any combination thereof.

[0286] Each element included in a multi-element compound such as the binary compound, the ternary compound, and the quaternary compound may be present at a substantially uniform concentration or non-substantially uniform concentration in a particle.

[0287] In some embodiments, the quantum dot may have a single structure in which the concentration of each element in the quantum dot is substantially uniform, or a core-shell dual structure. For example, a material included in the core and a material included in the shell may be different from each other.

[0288] The shell of the quantum dot may act as a protective layer that prevents chemical degeneration of the core to maintain semiconductor characteristics, and/or as a charging layer that imparts electrophoretic characteristics to the quantum dot. The shell may be a single layer or a multi-layer. The interface between the core and the shell may have a concentration gradient in which the concentration of an element existing in the shell decreases toward the center of the core.

[0289] Examples of the shell of the quantum dot may be an oxide of metal, metalloid, or non-metal, a semiconductor compound, or any combination thereof. Non-limiting examples of the oxide of metal, metalloid, or non-metal may be a binary compound, such as SiO.sub.2, Al.sub.2O.sub.3, TiO.sub.2, ZnO, MnO, Mn.sub.2O.sub.3, Mn.sub.3O.sub.4, CuO, FeO, Fe.sub.2O.sub.3, Fe.sub.3O.sub.4, CoO, Co.sub.3O.sub.4, and/or NiO; a ternary compound, such as MgAl.sub.2O.sub.4, CoFe.sub.2O.sub.4, NiFe.sub.2O.sub.4, and/or CoMn.sub.2O.sub.4; and any combination thereof. Examples of the semiconductor compound may be, as described herein, a Group II-VI semiconductor compound; a Group III-V semiconductor compound; a Group III-VI semiconductor compound; a Group I-III-VI semiconductor compound; a Group IV-VI semiconductor compound; and any combination thereof. For example, the semiconductor compound suitable as a shell may include CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaSb, HgS, HgSe, HgTe, InAs, InP, InGaP, InSb, AlAs, AlP, AlSb, or any combination thereof.

[0290] A full width at half maximum (FWHM) of the emission spectrum of the quantum dot may be about 45 nm or less, for example, about 40 nm or less, for example, about 30 nm or less, and within these ranges, color purity or color reproducibility of the quantum dot may be increased. In some embodiments, because the light emitted through the quantum dot is emitted in all directions, the wide viewing angle may be improved.

[0291] In one or more embodiments, the quantum dot may be in the form of a spherical particle, a pyramidal particle, a multi-arm particle, a cubic nanoparticle, a nanotube particle, a nanowire particle, a nanofiber particle, or a nanoplate particle.

[0292] Because the energy band gap of the quantum dot may be adjusted by controlling the size of the quantum dot, light having one or more suitable wavelength bands may be obtained from a quantum dot emission layer. Accordingly, by utilizing quantum dots of different sizes, an organic light-emitting device that emits light of one or more suitable wavelengths may be implemented. In one or more embodiments, the size of the quantum dot may be selected to enable the quantum dot to emit red, green, and/or blue light. In some embodiments, the quantum dots with suitable sizes may be configured to emit white light by combination of light of one or more suitable colors.

Electron Transport Region in Interlayer 130

[0293] The electron transport region may have: i) a single-layered structure including (e.g., consisting of) a single layer including (e.g., consisting of) a single material, ii) a single-layered structure including (e.g., consisting of) a single layer including (e.g., consisting of) a plurality of different materials, or iii) a multi-layered structure including a plurality of layers including different materials.

[0294] The electron transport region may include a buffer layer, a hole-blocking layer, an electron control layer, an electron transport layer, an electron injection layer, or any combination thereof.

[0295] For example, in one or more embodiments, the electron transport region may have an electron transport layer/electron injection layer structure, a hole-blocking layer/electron transport layer/electron injection layer structure, an electron control layer/electron transport layer/electron injection layer structure, or a buffer layer/electron transport layer/electron injection layer structure, the constituting layers of each structure being sequentially stacked from the emission layer in the stated order.

[0296] In one or more embodiments, the electron transport region (for example, the buffer layer, the hole-blocking layer, the electron control layer, or the electron transport layer in the electron transport region) may include a metal-free compound including at least one electron-deficient nitrogen-containing C.sub.1-C.sub.60 cyclic group.

[0297] For example, in some embodiments, the electron transport region may include a compound represented by Formula 601:

[Ar.sub.601].sub.xe11-[(L.sub.601).sub.xe1-R.sub.601].sub.xe21,Formula 601 [0298] wherein, in Formula 601, Ar.sub.601 and L.sub.601 may each independently be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, [0299] xe11 may be 1, 2, or 3, [0300] xe1 may be 0, 1, 2, 3, 4, or 5, [0301] R.sub.601 may be a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a, a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a, Si(Q.sub.601)(Q.sub.602)(Q.sub.603), C(O)(Q.sub.601), S(O).sub.2(Q.sub.601), or P(O)(Q.sub.601)(Q.sub.602), [0302] Q.sub.601 to Q.sub.603 may each be the same as described herein with respect to Q.sub.1, [0303] xe21 may be 1, 2, 3, 4, or 5, [0304] at least one selected from among Ar.sub.601, L.sub.601, and R.sub.601 may each independently be a electron-deficient nitrogen-containing C.sub.1-C.sub.60 cyclic group unsubstituted or substituted with at least one R.sub.10a.

[0305] For example, when xe11 in Formula 601 is 2 or more, two or more of Ar.sub.601(s) may be linked to each other via a single bond.

[0306] In some embodiments, Ar.sub.601 in Formula 601 may be a substituted or unsubstituted anthracene group.

[0307] In some embodiments, the electron transport region may include a compound represented by Formula 601-1:

##STR00138## [0308] wherein, in Formula 601-1, X.sub.614 may be N or C(R.sub.614), X.sub.615 may be N or C(R.sub.615), X.sub.616 may be N or C(R.sub.616), and at least one selected from among X.sub.614 to X.sub.616 may be N, [0309] L.sub.611 to L.sub.613 may each be the same as described herein with respect to L.sub.601, [0310] xe611 to xe613 may each be the same as described herein with respect to xe1, [0311] R.sub.611 to R.sub.613 may each be the same as described herein with respect to R.sub.601, and [0312] R.sub.614 to R.sub.616 may each independently be hydrogen, deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.1-C.sub.20 alkyl group, a C.sub.1-C.sub.20 alkoxy group, a C.sub.3-C.sub.60 carbocyclic group unsubstituted or substituted with at least one R.sub.10a, or a C.sub.1-C.sub.60 heterocyclic group unsubstituted or substituted with at least one R.sub.10a.

[0313] For example, in some embodiments, xe1 and xe611 to xe613 in Formulae 601 and 601-1 may each independently be 0, 1, or 2.

[0314] In one or more embodiments, the electron transport region may include at least one selected from among Compounds ET1 to ET45, 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), tris(8-hydroxyquinolinato)aluminum (Alq3), bis(2-methyl-8-quinolinolato-N1,O8)-(1,1-biphenyl-4-olato)aluminum (BAlq), 3-(4-biphenyl)-4-phenyl-5-tert-butylphenyl-1,2,4-triazole (TAZ), 4-(naphthalen-1-yl)-3,5-diphenyl-4H-1,2,4-triazole (NTAZ), or any combination thereof:

##STR00139## ##STR00140## ##STR00141## ##STR00142## ##STR00143## ##STR00144## ##STR00145## ##STR00146## ##STR00147## ##STR00148## ##STR00149##

[0315] A thickness of the electron transport region may be in a range of about 100 to about 5,000 , for example, about 160 to about 4,000 . When the electron transport region includes a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, or any combination thereof, a thickness of the buffer layer, the hole blocking layer, or the electron control layer may be in a range of about 20 to about 1,000 , for example, about 30 to about 300 , and a thickness of the electron transport layer may be in a range of about 100 to about 1,000 , for example, about 150 to about 500 . When the thicknesses of the buffer layer, the hole blocking layer, the electron control layer, the electron transport layer, and/or the electron transport region are within these ranges, satisfactory electron transporting characteristics may be obtained without a substantial increase in driving voltage.

[0316] In one or more embodiments, the electron transport region (for example, the electron transport layer in the electron transport region) may further include, in addition to the materials described above, a metal-containing material.

[0317] The metal-containing material may include an alkali metal complex, an alkaline earth metal complex, or any combination thereof. A metal ion of the alkali metal complex may be a Li ion, a Na ion, a K ion, a Rb ion, or a Cs ion, and a metal ion of the alkaline earth metal complex may be a Be ion, a Mg ion, a Ca ion, a Sr ion, or a Ba ion. A ligand coordinated with the metal ion of the alkali metal complex or the metal ion of the alkaline earth-metal complex may include a hydroxyquinoline, a hydroxyisoquinoline, a hydroxybenzoquinoline, a hydroxyacridine, a hydroxyphenanthridine, a hydroxyphenyloxazole, a hydroxyphenylthiazole, a hydroxyphenyloxadiazole, a hydroxyphenylthiadiazole, a hydroxyphenylpyridine, a hydroxyphenylbenzimidazole, a hydroxyphenylbenzothiazole, a bipyridine, a phenanthroline, a cyclopentadiene, or any combination thereof.

[0318] For example, in some embodiments, the metal-containing material may include a Li complex. The Li complex may include, for example, Compound ET-D1 (LiQ) or ET-D2:

##STR00150##

[0319] In one or more embodiments, the electron transport region may include an electron injection layer that facilitates the injection of electrons from the second electrode 150. The electron injection layer may directly contact the second electrode 150.

[0320] The electron injection layer may have: i) a single-layered structure including (e.g., consisting of) a single layer including (e.g., consisting of) a single material, ii) a single-layered structure including (e.g., consisting of) a single layer including (e.g., consisting of) a plurality of different materials, or iii) a multi-layered structure including a plurality of layers including different materials.

[0321] The electron injection layer may include an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal-containing compound, an alkaline earth metal-containing compound, a rare earth metal-containing compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof.

[0322] The alkali metal may include Li, Na, K, Rb, Cs, or any combination thereof. The alkaline earth metal may include Mg, Ca, Sr, Ba, or any combination thereof. The rare earth metal may include Sc, Y, Ce, Tb, Yb, Gd, or any combination thereof.

[0323] The alkali metal-containing compound, the alkaline earth metal-containing compound, and the rare earth metal-containing compound may be oxides, halides (for example, fluorides, chlorides, bromides, or iodides), or tellurides of the alkali metal, the alkaline earth metal, and the rare earth metal, respectively, or any combination thereof.

[0324] The alkali metal-containing compound may include: alkali metal oxides, such as Li.sub.2O, Cs.sub.2O, and/or K.sub.2O; alkali metal halides, such as LiF, NaF, CsF, KF, LiI, NaI, CsI, and/or KI; or any combination thereof. The alkaline earth metal-containing compound may include an alkaline earth metal compound, such as BaO, SrO, CaO, Ba.sub.xSr.sub.1-xO (wherein x is a real number satisfying the condition of 0<x<1), Ba.sub.xCa.sub.1-xO (wherein x is a real number satisfying the condition of 0<x<1), and/or the like. The rare earth metal-containing compound may include YbF.sub.3, ScF.sub.3, Sc.sub.2O.sub.3, Y.sub.2O.sub.3, Ce.sub.2O.sub.3, GdF.sub.3, TbF.sub.3, YbI.sub.3, ScI.sub.3, TbI.sub.3, or any combination thereof. In one or more embodiments, the rare earth metal-containing compound may include lanthanide metal tellurides. Non-limiting examples of the lanthanide metal telluride may be LaTe, CeTe, PrTe, NdTe, PmTe, SmTe, EuTe, GdTe, TbTe, DyTe, HoTe, ErTe, TmTe, YbTe, LuTe, La.sub.2Te.sub.3, Ce.sub.2Te.sub.3, Pr.sub.2Te.sub.3, Nd.sub.2Te.sub.3, Pm.sub.2Te.sub.3, Sm.sub.2Te.sub.3, Eu.sub.2Te.sub.3, Gd.sub.2Te.sub.3, Tb.sub.2Te.sub.3, Dy.sub.2Te.sub.3, Ho.sub.2Te.sub.3, Er.sub.2Te.sub.3, Tm.sub.2Te.sub.3, Yb.sub.2Te.sub.3, and/or Lu.sub.2Te.sub.3.

[0325] The alkali metal complex, the alkaline earth-metal complex, and the rare earth metal complex may include i) one of metal ions of the alkali metal, one of metal ions of the alkaline earth metal, and one of metal ions of the rare earth metal, respectively, and ii) a ligand bonded to the metal ion (i.e., the respective metal ion), for example, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenyl benzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene, or any combination thereof.

[0326] In one or more embodiments, the electron injection layer may include (e.g., consist of) an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal-containing compound, an alkaline earth metal-containing compound, a rare earth metal-containing compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof, as described above. In one or more embodiments, the electron injection layer may further include an organic material (for example, a compound represented by Formula 601).

[0327] In one or more embodiments, the electron injection layer may include (e.g., consist of): i) an alkali metal-containing compound (for example, an alkali metal halide); or ii) a) an alkali metal-containing compound (for example, an alkali metal halide), and b) an alkali metal, an alkaline earth metal, a rare earth metal, or any combination thereof. For example, in some embodiments, the electron injection layer may be a KI:Yb co-deposited layer, an RbI:Yb co-deposited layer, a LiF:Yb co-deposited layer, and/or the like.

[0328] When the electron injection layer further includes an organic material, an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal-containing compound, an alkaline earth metal-containing compound, a rare earth metal-containing compound, an alkali metal complex, an alkaline earth-metal complex, a rare earth metal complex, or any combination thereof may be substantially uniformly or non-uniformly dispersed in a matrix including the organic material.

[0329] A thickness of the electron injection layer may be in a range of about 1 to about 100 , for example, about 3 to about 90 . When the thickness of the electron injection layer is within the ranges described above, satisfactory electron injection characteristics may be obtained without a substantial increase in driving voltage.

Second Electrode 150

[0330] The second electrode 150 may be on the interlayer 130 having a structure as described above. The second electrode 150 may be a cathode, which is an electron injection electrode, and as a material for the second electrode 150, a metal, an alloy, an electrically conductive compound, or any combination thereof, each having a low-work function, may be utilized.

[0331] The second electrode 150 may include lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum-lithium (AlLi), calcium (Ca), magnesium-indium (MgIn), magnesium-silver (MgAg), ytterbium (Yb), silver-ytterbium (AgYb), ITO, IZO, or any combination thereof. The second electrode 150 may be a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.

[0332] The second electrode 150 may have a single-layered structure or a multi-layered structure including a plurality of layers.

Capping Layer

[0333] A first capping layer may be located outside (e.g., on) the first electrode 110, and/or a second capping layer may be located outside (e.g., on) the second electrode 150. In one or more embodiments, the organic light-emitting device 10 may have a structure in which the first capping layer, the first electrode 110, the interlayer 130, and the second electrode 150 are sequentially stacked in this stated order, a structure in which the first electrode 110, the interlayer 130, the second electrode 150, and the second capping layer are sequentially stacked in this stated order, or a structure in which the first capping layer, the first electrode 110, the interlayer 130, the second electrode 150, and the second capping layer are sequentially stacked in this stated order.

[0334] Light generated in the emission layer of the interlayer 130 of the organic light-emitting device 10 may be extracted toward the outside through the first electrode 110, which is a semi-transmissive electrode or a transmissive electrode, and the first capping layer or light generated in the emission layer of the interlayer 130 of the organic light-emitting device 10 may be extracted toward the outside through the second electrode 150, which is a semi-transmissive electrode or a transmissive electrode, and the second capping layer.

[0335] The first capping layer and the second capping layer may increase external emission efficiency according to the principle of constructive interference. Accordingly, the light extraction efficiency of the organic light-emitting device 10 is increased, so that the luminescence efficiency of the organic light-emitting device 10 may be improved.

[0336] Each of the first capping layer and the second capping layer may include a material having a refractive index of 1.6 or more (e.g., at 589 nm).

[0337] The first capping layer and the second capping layer may each independently be an organic capping layer including an organic material, an inorganic capping layer including an inorganic material, or an organic-inorganic composite capping layer including an organic material and an inorganic material.

[0338] At least one of the first capping layer or the second capping layer may (e.g., the first capping layer and the second capping layer may each independently) include carbocyclic compounds, heterocyclic compounds, amine group-containing compounds, porphine derivatives, phthalocyanine derivatives, naphthalocyanine derivatives, alkali metal complexes, alkaline earth metal complexes, or any combination thereof. Optionally, the carbocyclic compound, the heterocyclic compound, and the amine group-containing compound may each be substituted with a substituent including O, N, S, Se, Si, F, Cl, Br, I, or any combination thereof. In one or more embodiments, at least one of the first capping layer or the second capping layer may (e.g., the first capping layer and the second capping layer may each independently) include an amine group-containing compound, e.g., the amine-containing compound of one or more embodiments of the present disclosure.

[0339] For example, in one or more embodiments, at least one of the first capping layer or the second capping layer may (e.g., the first capping layer and the second capping layer may each independently) include a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof.

[0340] In one or more embodiments, at least one of the first capping layer or the second capping layer may (e.g., the first capping layer and the second capping layer may each independently) include at least one selected from among Compounds HT28 to HT33, at least one selected from among Compounds CP1 to CP6, -NPB, or any combination thereof:

##STR00151## ##STR00152##

Film

[0341] The amine-containing compound represented by Formula 1 may be included in one or more suitable films. Thus, one or more aspects of embodiments of the present disclosure are directed toward a film including the amine-containing compound represented by Formula 1. The film may be, for example, an optical member (or a light control element) (for example, a color filter, a color conversion member, a capping layer, a light extraction efficiency enhancement layer, a selective light absorbing layer, a polarizing layer, a quantum dot-containing layer, and/or like), a light-blocking member (for example, a light reflective layer, a light absorbing layer, and/or the like), and/or a protective member (for example, an insulating layer, a dielectric layer, and/or the like).

Electronic Apparatus

[0342] The organic light-emitting device may be included in one or more suitable electronic apparatuses. In one or more embodiments, the electronic apparatus including the organic light-emitting device may be a light-emitting apparatus, an authentication apparatus, and/or the like.

[0343] In one or more embodiments, the electronic apparatus (for example, a light-emitting apparatus) may further include, in addition to the organic light-emitting device, i) a color filter, ii) a color conversion layer, or iii) a color filter and a color conversion layer. The color filter and/or the color conversion layer may be arranged in at least one travel direction of light emitted from the organic light-emitting device. For example, in some embodiments, the light emitted from the organic light-emitting device may be blue light or white light (e.g., combined white light). The organic light-emitting device may be the same as described above. In one or more embodiments, the color conversion layer may include a quantum dot. The quantum dot may be, for example, a quantum dot described herein.

[0344] The electronic apparatus may include a first substrate. The first substrate may include a plurality of subpixel areas, the color filter may include a plurality of color filter areas respectively corresponding to the subpixel areas, and the color conversion layer may include a plurality of color conversion areas respectively corresponding to the subpixel areas.

[0345] A pixel-defining film may be located among the subpixel areas to define each of the subpixel areas.

[0346] The color filter may further include a plurality of color filter areas and light-shielding patterns located among the color filter areas, and the color conversion layer may further include a plurality of color conversion areas and light-shielding patterns located among the color conversion areas.

[0347] The plurality of color filter areas (or the plurality of color conversion areas) may include a first area configured to emit first color light, a second area configured to emit second color light, and/or a third area configured to emit third color light, wherein the first color light, the second color light, and/or the third color light may have different maximum emission wavelengths from one another. For example, in one or more embodiments, the first color light may be red light, the second color light may be green light, and the third color light may be blue light. For example, in one or more embodiments, the plurality of color filter areas (or the plurality of color conversion areas) may include quantum dots. In some embodiments, the first area may include a red quantum dot to emit red light, the second area may include a green quantum dot to emit green light, and the third area may not include (e.g., may exclude) a quantum dot. For details on the quantum dot, related descriptions provided herein may be referred to. The first area, the second area, and/or the third area may each include a scatter.

[0348] For example, in one or more embodiments, the organic light-emitting device may be to emit first light, the first area may be to absorb the first light to emit first-first color light, the second area may be to absorb the first light to emit second-first color light, and the third area may be to absorb the first light to emit third-first color light. In this regard, the first-first color light, the second-first color light, and the third-first color light may have different maximum emission wavelengths. In some embodiments, the first light may be blue light, the first-first color light may be red light, the second-first color light may be green light, and the third-first color light may be blue light.

[0349] In one or more embodiments, the electronic apparatus may further include a thin-film transistor in addition to the organic light-emitting device as described above. The thin-film transistor may include a source electrode, a drain electrode, and an activation layer, wherein one selected from among the source electrode and the drain electrode may be electrically connected to the first electrode or the second electrode of the organic light-emitting device.

[0350] The thin-film transistor may further include a gate electrode, a gate insulating film, and/or the like.

[0351] The activation layer may include crystalline silicon, amorphous silicon, an organic semiconductor, an oxide semiconductor, and/or the like.

[0352] In one or more embodiments, the electronic apparatus may further include a sealing portion for sealing the organic light-emitting device. The sealing portion may be arranged between the color filter and/or the color conversion layer and the organic light-emitting device. The sealing portion allows light from the organic light-emitting device to be extracted to the outside, while concurrently (e.g., simultaneously) preventing or reducing ambient air and moisture from penetrating into the organic light-emitting device. The sealing portion may be a sealing substrate including a transparent glass substrate or a plastic substrate. The sealing portion may be a thin-film encapsulation layer including at least one layer of an organic layer and/or an inorganic layer. When the sealing portion is a thin film encapsulation layer, the electronic apparatus may be flexible.

[0353] Various functional layers may be additionally located on the sealing portion, in addition to the color filter and/or the color conversion layer, according to the utilization of the electronic apparatus. The functional layers may include a touch screen layer, a polarizing layer, and/or the like. The touch screen layer may be a pressure-sensitive touch screen layer, a capacitive touch screen layer, or an infrared touch screen layer.

[0354] The authentication apparatus may further include, in addition to the organic light-emitting device, a biometric information collector. The authentication apparatus may be, for example, a biometric authentication apparatus that authenticates an individual by utilizing biometric information of a living body (for example, fingertips, pupils, etc.).

[0355] The electronic apparatus may be applied to one or more of displays, light sources, lighting, personal computers (for example, a mobile personal computer), mobile phones, digital cameras, electronic organizers, electronic dictionaries, electronic game machines, medical instruments (for example, electronic thermometers, sphygmomanometers, blood glucose meters, pulse measurement devices, pulse wave measurement devices, electrocardiogram displays, ultrasonic diagnostic devices, or endoscope displays), fish finders, one or more suitable measuring instruments, meters (for example, meters for a vehicle, an aircraft, and a vessel), projectors, and/or the like.

Electronic Equipment

[0356] The organic light-emitting device may be included in one or more suitable electronic equipment.

[0357] For example, the electronic equipment including the organic light-emitting device may be at least of a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, a light for indoor or outdoor lighting and/or signaling, a head-up display, a fully or partially transparent display, a flexible display, a rollable display, a foldable display, a stretchable display, a laser printer, a telephone, a mobile phone, a tablet, a phablet, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a camcorder, a viewfinder, a micro display, a 3D display, a virtual or augmented-reality display, a vehicle, a video wall including multiple displays tiled together, a theater or stadium screen, a phototherapy device, or a signboard.

[0358] The organic light-emitting device may have excellent or suitable effects in terms of luminescence efficiency and long lifespan, and thus the electronic equipment including the organic light-emitting device may have desirable characteristics, such as high luminance, high resolution, and low power consumption.

Description of FIGS. 2 and 3

[0359] FIG. 2 is a cross-sectional view showing a light-emitting apparatus according to one or more embodiments of the present disclosure.

[0360] The light-emitting apparatus of FIG. 2 may include a substrate 100, a thin-film transistor (TFT), an organic light-emitting device, and an encapsulation portion 300 that seals the organic light-emitting device.

[0361] The substrate 100 may be a flexible substrate, a glass substrate, or a metal substrate. A buffer layer 210 may be on the substrate 100. The buffer layer 210 may prevent or reduce penetration of impurities through the substrate 100 and may provide a flat surface on the substrate 100.

[0362] The TFT may be on the buffer layer 210. The TFT may include an activation layer 220, a gate electrode 240, a source electrode 260, and a drain electrode 270.

[0363] The activation layer 220 may include an inorganic semiconductor such as silicon or polysilicon, an organic semiconductor, or an oxide semiconductor, and may include a source region, a drain region, and a channel region.

[0364] A gate insulating film 230 for insulating the activation layer 220 from the gate electrode 240 may be on the activation layer 220, and the gate electrode 240 may be on the gate insulating film 230.

[0365] An interlayer insulating film 250 may be on the gate electrode 240. The interlayer insulating film 250 may be located between the gate electrode 240 and the source electrode 260 and between the gate electrode 240 and the drain electrode 270, to insulate from one another.

[0366] The source electrode 260 and the drain electrode 270 may be on the interlayer insulating film 250. The interlayer insulating film 250 and the gate insulating film 230 may be formed to expose the source region and the drain region of the activation layer 220, and the source electrode 260 and the drain electrode 270 may be located in contact with the exposed portions of the source region and the drain region of the activation layer 220, respectively.

[0367] The TFT may be electrically connected to the organic light-emitting device to drive the organic light-emitting device, and may be covered and protected by a passivation layer 280. The passivation layer 280 may include an inorganic insulating film, an organic insulating film, or any combination thereof. The passivation layer 280 may include an inorganic insulating film, an organic insulating film, or any combination thereof. The organic light-emitting device may include a first electrode 110, an interlayer 130, and a second electrode 150.

[0368] The first electrode 110 may be on the passivation layer 280. The passivation layer 280 may be located to expose a portion of the drain electrode 270, not fully covering the drain electrode 270, and the first electrode 110 may be located to be connected to the exposed portion of the drain electrode 270.

[0369] A pixel defining layer 290 including an insulating material may be on the first electrode 110. The pixel defining layer 290 may expose a certain region of the first electrode 110, and the interlayer 130 may be formed in the exposed region of the first electrode 110. The pixel defining layer 290 may be a polyimide or polyacrylic organic film. In some embodiments, at least some layers of the interlayer 130 may extend beyond the upper portion of the pixel defining layer 290 to be located in the form of a common layer.

[0370] The second electrode 150 may be on the interlayer 130, and a capping layer 170 may be additionally formed on the second electrode 150. The capping layer 170 may be formed to cover the second electrode 150.

[0371] The encapsulation portion 300 may be on the capping layer 170. The encapsulation portion 300 may be arranged on the organic light-emitting device to protect the organic light-emitting device from moisture and/or oxygen. The encapsulation portion 300 may include: an inorganic film including silicon nitride (SiN.sub.x), silicon oxide (SiO.sub.x), indium tin oxide, indium zinc oxide, or any combination thereof; an organic film including polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, polyethylene sulfonate, polyoxymethylene, polyarylate, hexamethyldisiloxane, an acrylic resin (for example, polymethyl methacrylate, polyacrylic acid, and/or the like), an epoxy-based resin (for example, aliphatic glycidyl ether (AGE), and/or the like), or any combination thereof; or any combination of the inorganic films and the organic films.

[0372] FIG. 3 shows a cross-sectional view showing a light-emitting apparatus according to one or more embodiments of the present disclosure.

[0373] The light-emitting apparatus of FIG. 3 is substantially the same as the light-emitting apparatus of FIG. 2, except that a light-shielding pattern 500 and a functional region 400 are additionally located on the encapsulation portion 300. The functional region 400 may be i) a color filter area, ii) a color conversion area, or iii) a combination of the color filter area and the color conversion area. In one or more embodiments, the organic light-emitting device included in the light-emitting apparatus of FIG. 3 may be a tandem organic light-emitting device.

Description of FIG. 4

[0374] FIG. 4 is a schematic perspective view of electronic equipment 1 including the organic light-emitting device according to one or more embodiments. The electronic equipment 1 may be, as a device apparatus that displays a moving image or still image, a portable electronic equipment, such as a mobile phone, a smart phone, a tablet personal computer (PC), a mobile communication terminal, an electronic notebook, an electronic book, a portable multimedia player (PMP), a navigation, or a ultra mobile PC (UMPC) as well as one or more suitable electronic products, such as a television, a laptop, a monitor, a billboard or an Internet of things (IOT). The electronic equipment 1 may be such a product above or a part thereof. In some embodiments, the electronic equipment 1 may be a wearable device, such as a smart watch, a watch phone, a glasses-type or kind display, or a head mounted display (HMD), or a part of the wearable device. However, embodiments of the present disclosure are not limited thereto. For example, in one or more embodiments, the electronic equipment 1 may include a dashboard of a vehicle, a center fascia of a vehicle, a center information display arranged on a dashboard of a vehicle, a room mirror display replacing a side mirror of a vehicle, an entertainment display for the rear seat of a vehicle or a display arranged on the back of the front seat thereof, or a head up display (HUD) installed in the front of a vehicle or projected on a front window glass, and/or a computer-generated hologram augmented-reality head up display (CGH AR HUD). FIG. 4 illustrates an embodiment in which the electronic equipment 1 is a smartphone for convenience of explanation.

[0375] The electronic equipment 1 may include a display area DA and a non-display area NDA outside the display area DA. A display device of the electronic equipment 1 may implement an image through an array of a plurality of pixels that are two-dimensionally arranged in the display area DA.

[0376] The non-display area NDA is an area that does not display an image, and may entirely surround the display area DA. On the non-display area NDA, a driver for providing electrical signals or power to display devices arranged on the display area DA may be arranged. On the non-display area NDA, a pad, which is an area to which an electronic element or a printing circuit board may be electrically connected, may be arranged.

[0377] In the electronic equipment 1, a length in the x-axis direction and a length in the y-axis direction may be different from each other. For example, as shown in FIG. 4, the length in the x-axis direction may be (the width and be) shorter than the length in the y-axis direction. In one or more embodiments, the length in the x-axis direction may be substantially the same as the length in the y-axis direction. In one or more embodiments, the length in the x-axis direction may be longer than the length (the width) in the y-axis direction.

Descriptions of FIGS. 5 and 6A to 6C

[0378] FIG. 5 is a diagram illustrating an exterior of a vehicle 1000 as electronic equipment including the organic light-emitting device according to one or more embodiments of the present disclosure. FIGS. 6A to 6C are each a schematic view of an interior of the vehicle 1000 according to one or more embodiments.

[0379] Referring to FIGS. 5, 6A, 6B, and 6C, the vehicle 1000 may refer to one or more suitable apparatuses for moving an object to be transported, such as a human, an object, or an animal, from a departure point to a destination. The vehicle 1000 may include a vehicle traveling on a road or a track, a vessel moving over a sea or a river, an airplane flying in the sky utilizing the action of air, and/or the like.

[0380] In one or more embodiments, the vehicle 1000 may travel on a road or a track. The vehicle 1000 may move in a set or predetermined direction according to the rotation of at least one wheel thereof. For example, the vehicle 1000 may include a three-wheeled or four-wheeled vehicle, a construction machine, a two-wheeled vehicle, a prime mover device, a bicycle, or a train running on a track.

[0381] The vehicle 1000 may include a body having an interior and an exterior, and a chassis in which mechanical apparatuses necessary for driving are installed as other parts except for the body. The exterior of the vehicle body may include a front panel, a bonnet, a roof panel, a rear panel, a trunk, a pillar provided at a boundary between doors, and/or the like. The chassis of the vehicle 1000 may include a power generating device, a power transmitting device, a driving device, a steering device, a braking device, a suspension device, a transmission device, a fuel device, front and rear wheels, left and right wheels, and/or the like.

[0382] The vehicle 1000 may include a side window glass 1100, a front window glass 1200, a side mirror 1300, a cluster 1400, a center fascia 1500, a passenger seat dashboard 1600, and a display device 2.

[0383] The side window glass 1100 and the front window glass 1200 may be partitioned by a pillar arranged between the side window glass 1100 and the front window glass 1200.

[0384] The side window glass 1100 may be installed on a side of the vehicle 1000. In some embodiments, the side window glass 1100 may be installed on a door of the vehicle 1000. A plurality of side window glasses 1100 may be provided and may face each other. In some embodiments, the side window glass 1100 may include a first side window glass 1110 and a second side window glass 1120. In some embodiments, the first side window glass 1110 may be arranged adjacent to the cluster 1400. The second side window glass 1120 may be arranged adjacent to the passenger seat dashboard 1600.

[0385] In one or more embodiments, the side window glasses 1100 may be spaced apart from each other in the x-direction or the x-direction (the direction opposite the x direction). For example, in some embodiments, the first side window glass 1110 and the second side window glass 1120 may be spaced apart from each other in the x direction or the x direction. In other words, an imaginary straight line L connecting the side window glasses 1100 may extend in the x-direction or the x-direction. For example, an imaginary straight line L connecting the first side window glass 1110 and the second side window glass 1120 to each other may extend in the x direction or the x direction.

[0386] The front window glass 1200 may be installed in the front of the vehicle 1000. The front window glass 1200 may be arranged between the side window glasses 1100 facing each other.

[0387] The side mirror 1300 may provide a rear view of the vehicle 1000. The side mirror 1300 may be installed on the exterior of the vehicle body. In some embodiments, a plurality of side mirrors 1300 may be provided. Any one of the plurality of side mirrors 1300 may be arranged outside the first side window glass 1110. The other one of the plurality of side mirrors 1300 may be arranged outside the second side window glass 1120.

[0388] The cluster 1400 may be arranged in front of the steering wheel. The cluster 1400 may include a tachometer, a speedometer, a coolant thermometer, a fuel gauge turn indicator, a high beam indicator, a warning light, a seat belt warning light, an odometer, a hodometer, an automatic shift selector indicator, a door open warning light, an engine oil warning light, and/or a low fuel warning light.

[0389] The center fascia 1500 may include a control panel on which a plurality of buttons for adjusting an audio device, an air conditioning device, and/or a heater of a seat are disposed. The center fascia 1500 may be arranged on one side of the cluster 1400.

[0390] The passenger seat dashboard 1600 may be spaced apart from the cluster 1400 with the center fascia 1500 arranged therebetween. In some embodiments, the cluster 1400 may be arranged to correspond to a driver seat, and the passenger seat dashboard 1600 may be disposed to correspond to a passenger seat. In some embodiments, the cluster 1400 may be adjacent to the first side window glass 1110, and the passenger seat dashboard 1600 may be adjacent to the second side window glass 1120.

[0391] In one or more embodiments, the display device 2 may include a display panel 3, and the display panel 3 may display an image. The display device 2 may be arranged inside the vehicle 1000. In some embodiments, the display device 2 may be arranged between the side window glasses 1100 facing each other. The display device 2 may be arranged on at least one of the cluster 1400, the center fascia 1500, or the passenger seat dashboard 1600.

[0392] The display device 2 may include an organic light-emitting display device, an inorganic EL display device, a quantum dot display device, and/or the like. Hereinafter, as the display device 2 according to one or more embodiments of the disclosure, an organic light-emitting display device including the organic light-emitting device according to the disclosure will be described as an example, but one or more suitable types (kinds) of display devices as described above may be utilized in embodiments of the disclosure.

[0393] Referring to FIG. 6A, in one or more embodiments, the display device 2 may be arranged on the center fascia 1500. In some embodiments, the display device 2 may display navigation information. In some embodiments, the display device 2 may display audio, video, or information regarding vehicle settings.

[0394] Referring to FIG. 6B, in one or more embodiments, the display device 2 may be arranged on the cluster 1400. When the display device 2 is arranged on the cluster 1400, the cluster 1400 may display driving information and/or the like through the display device 2. For example, the cluster 1400 may be implemented digitally. The digital cluster 1400 may display vehicle information and driving information as images. For example, a needle and a gauge of a tachometer and one or more suitable warning light icons may be displayed by a digital signal.

[0395] Referring to FIG. 6C, in one or more embodiments, the display device 2 may be arranged on the passenger seat dashboard 1600. The display device 2 may be embedded in the passenger seat dashboard 1600 or arranged on the passenger seat dashboard 1600. In some embodiments, the display device 2 arranged on the passenger seat dashboard 1600 may display an image related to information displayed on the cluster 1400 and/or information displayed on the center fascia 1500. In one or more embodiments, the display device 2 arranged on the passenger seat dashboard 1600 may display information different from information displayed on the cluster 1400 and/or information displayed on the center fascia 1500.

Manufacturing Method

[0396] Respective layers included in the hole transport region, the emission layer, and respective layers included in the electron transport region may each be formed in a certain region by utilizing one or more suitable methods selected from vacuum deposition, spin coating, casting, Langmuir-Blodgett (LB) deposition, ink-jet printing, laser-printing, and/or laser-induced thermal imaging.

[0397] When layers constituting the hole transport region, the emission layer, and layers constituting the electron transport region are each formed by vacuum deposition, the deposition may be performed at a deposition temperature of about 100 C. to about 500 C., a vacuum degree of about 10.sup.8 torr to about 10.sup.3 torr, and a deposition speed of about 0.01 /sec to about 100 /sec, depending on a material to be included in a layer to be formed and the structure of a layer to be formed.

DEFINITION OF TERMS

[0398] The term C.sub.3-C.sub.60 carbocyclic group as utilized herein refers to a cyclic group including (e.g., consisting of) carbon only as a ring-forming atom and having three to sixty carbon atoms, and the term C.sub.1-C.sub.60 heterocyclic group as utilized herein refers to a cyclic group that has one to sixty carbon atoms and further has, in addition to carbon, a heteroatom as a ring-forming atom. The C.sub.3-C.sub.60 carbocyclic group and the C.sub.1-C.sub.60 heterocyclic group may each be a monocyclic group including (e.g., consisting of) one (e.g., only one) ring or a polycyclic group in which two or more rings are condensed with each other. For example, the C.sub.1-C.sub.60 heterocyclic group has 3 to 61 ring-forming atoms.

[0399] The term cyclic group as utilized herein may include the C.sub.3-C.sub.60 carbocyclic group, and the C.sub.1-C.sub.60 heterocyclic group.

[0400] The term electron-rich C.sub.3-C.sub.60 cyclic group as utilized herein refers to a cyclic group that has three to sixty carbon atoms and does not include *N* as a ring-forming moiety, and the term electron-deficient nitrogen-containing C.sub.1-C.sub.60 cyclic group as utilized herein refers to a heterocyclic group that has one to sixty carbon atoms and includes *N* as a ring-forming moiety.

[0401] For example, the C.sub.3-C.sub.60 carbocyclic group may be i) Group T1 or ii) a condensed cyclic group in which two or more of Group T1 are condensed with each other (for example, a cyclopentadiene group, an adamantane group, a norbornane group, a benzene group, a pentalene group, a naphthalene group, an azulene group, an indacene group, an acenaphthylene group, a phenalene group, a phenanthrene group, an anthracene group, a fluoranthene group, a triphenylene group, a pyrene group, a chrysene group, a perylene group, a pentaphene group, a heptalene group, a naphthacene group, a picene group, a hexacene group, a pentacene group, a rubicene group, a coronene group, an ovalene group, an indene group, a fluorene group, a spiro-bifluorene group, a benzofluorene group, an indenophenanthrene group, or an indenoanthracene group), [0402] the C.sub.1-C.sub.60 heterocyclic group may be i) Group T2, ii) a condensed cyclic group in which two or more of Group T2 are condensed with each other, or iii) a condensed cyclic group in which at least one Group T2 and at least one Group T1 are condensed with each other (for example, a pyrrole group, a thiophene group, a furan group, an indole group, a benzoindole group, a naphthoindole group, an isoindole group, a benzoisoindole group, a naphthoisoindole group, a benzosilole group, a benzothiophene group, a benzofuran group, a carbazole group, a dibenzosilole group, a dibenzothiophene group, a dibenzofuran group, an indenocarbazole group, an indolocarbazole group, a benzofurocarbazole group, a benzothienocarbazole group, a benzosilolocarbazole group, a benzoindolocarbazole group, a benzocarbazole group, a benzonaphthofuran group, a benzonaphthothiophene group, a benzonaphthosilole group, a benzofurodibenzofuran group, a benzofurodibenzothiophene group, a benzothienodibenzothiophene group, a pyrazole group, an imidazole group, a triazole group, an oxazole group, an isoxazole group, an oxadiazole group, a thiazole group, an isothiazole group, a thiadiazole group, a benzopyrazole group, a benzimidazole group, a benzoxazole group, a benzoisoxazole group, a benzothiazole group, a benzoisothiazole group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, a quinoline group, an isoquinoline group, a benzoquinoline group, a benzoisoquinoline group, a quinoxaline group, a benzoquinoxaline group, a quinazoline group, a benzoquinazoline group, a phenanthroline group, a cinnoline group, a phthalazine group, a naphthyridine group, an imidazopyridine group, an imidazopyrimidine group, an imidazotriazine group, an imidazopyrazine group, an imidazopyridazine group, an azacarbazole group, an azafluorene group, an azadibenzosilole group, an azadibenzothiophene group, an azadibenzofuran group, etc.), [0403] the electron-rich C.sub.3-C.sub.60 cyclic group may be i) Group T1, ii) a condensed cyclic group in which two or more of Group T1 are condensed with each other, iii) Group T3, iv) a condensed cyclic group in which two or more of Group T3 are condensed with each other, or v) a condensed cyclic group in which at least one Group T3 and at least one Group T1 are condensed with each other (for example, the C.sub.3-C.sub.60 carbocyclic group, a 1H-pyrrole group, a silole group, a borole group, a 2H-pyrrole group, a 3H-pyrrole group, a thiophene group, a furan group, an indole group, a benzoindole group, a naphthoindole group, an isoindole group, a benzoisoindole group, a naphthoisoindole group, a benzosilole group, a benzothiophene group, a benzofuran group, a carbazole group, a dibenzosilole group, a dibenzothiophene group, a dibenzofuran group, an indenocarbazole group, an indolocarbazole group, a benzofurocarbazole group, a benzothienocarbazole group, a benzosilolocarbazole group, a benzoindolocarbazole group, a benzocarbazole group, a benzonaphthofuran group, a benzonaphthothiophene group, a benzonaphthosilole group, a benzofurodibenzofuran group, a benzofurodibenzothiophene group, a benzothienodibenzothiophene group, etc.),

[0404] the electron-deficient nitrogen-containing C.sub.1-C.sub.60 cyclic group may be i) Group T4, ii) a condensed cyclic group in which two or more of Group T4 are condensed with each other, iii) a condensed cyclic group in which at least one Group T4 and at least one Group T1 are condensed with each other, iv) a condensed cyclic group in which at least one Group T4 and at least one Group T3 are condensed with each other, or v) a condensed cyclic group in which at least one Group T4, at least one Group T1, and at least one Group T3 are condensed with one another (for example, a pyrazole group, an imidazole group, a triazole group, an oxazole group, an isoxazole group, an oxadiazole group, a thiazole group, an isothiazole group, a thiadiazole group, a benzopyrazole group, a benzimidazole group, a benzoxazole group, a benzoisoxazole group, a benzothiazole group, a benzoisothiazole group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, a quinoline group, an isoquinoline group, a benzoquinoline group, a benzoisoquinoline group, a quinoxaline group, a benzoquinoxaline group, a quinazoline group, a benzoquinazoline group, a phenanthroline group, a cinnoline group, a phthalazine group, a naphthyridine group, an imidazopyridine group, an imidazopyrimidine group, an imidazotriazine group, an imidazopyrazine group, an imidazopyridazine group, an azacarbazole group, an azafluorene group, an azadibenzosilole group, an azadibenzothiophene group, an azadibenzofuran group, etc.),

[0405] Group T1 may be a cyclopropane group, a cyclobutane group, a cyclopentane group, a cyclohexane group, a cycloheptane group, a cyclooctane group, a cyclobutene group, a cyclopentene group, a cyclopentadiene group, a cyclohexene group, a cyclohexadiene group, a cycloheptene group, an adamantane group, a norbornane (or a bicyclo[2.2.1]heptane) group, a norbornene group, a bicyclo[1.1.1]pentane group, a bicyclo[2.1.1]hexane group, a bicyclo[2.2.2]octane group, or a benzene group,

[0406] Group T2 may be a furan group, a thiophene group, a 1H-pyrrole group, a silole group, a borole group, a 2H-pyrrole group, a 3H-pyrrole group, an imidazole group, a pyrazole group, a triazole group, a tetrazole group, an oxazole group, an isoxazole group, an oxadiazole group, a thiazole group, an isothiazole group, a thiadiazole group, an azasilole group, an azaborole group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, a tetrazine group, a pyrrolidine group, an imidazolidine group, a dihydropyrrole group, a piperidine group, a tetrahydropyridine group, a dihydropyridine group, a hexahydropyrimidine group, a tetrahydropyrimidine group, a dihydropyrimidine group, a piperazine group, a tetrahydropyrazine group, a dihydropyrazine group, a tetrahydropyridazine group, or a dihydropyridazine group,

[0407] Group T3 may be a furan group, a thiophene group, a 1H-pyrrole group, a silole group, or a borole group, and

[0408] Group T4 may be a 2H-pyrrole group, a 3H-pyrrole group, an imidazole group, a pyrazole group, a triazole group, a tetrazole group, an oxazole group, an isoxazole group, an oxadiazole group, a thiazole group, an isothiazole group, a thiadiazole group, an azasilole group, an azaborole group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, or a tetrazine group.

[0409] The term cyclic group, C.sub.3-C.sub.60 carbocyclic group, C.sub.1-C.sub.60 heterocyclic group, electron-rich C.sub.3-C.sub.60 cyclic group, or electron-deficient nitrogen-containing C.sub.1-C.sub.60 cyclic group as utilized herein may refer to a group condensed to any cyclic group, a monovalent group, or a polyvalent group (for example, a divalent group, a trivalent group, a tetravalent group, etc.) according to the structure of a formula for which the corresponding term is utilized. For example, the benzene group may be a benzo group, a phenyl group, a phenylene group, and/or the like, which may be easily understood by one of ordinary skill in the art according to the structure of a formula including the benzene group.

[0410] Depending on context, in the present disclosure, a divalent group may refer or be a polyvalent group (e.g., trivalent, tetravalent, etc., and not just divalent) per, e.g., the structure of a formula in connection with which of the terms are utilized.

[0411] Non-limiting examples of the monovalent C.sub.3-C.sub.60 carbocyclic group and the monovalent C.sub.1-C.sub.60 heterocyclic group may include a C.sub.3-C.sub.10 cycloalkyl group, a C.sub.1-C.sub.10 heterocycloalkyl group, a C.sub.3-C.sub.10 cycloalkenyl group, a C.sub.1-C.sub.10 heterocycloalkenyl group, a C.sub.6-C.sub.60 aryl group, a C.sub.1-C.sub.60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group. Non-limiting examples of the divalent C.sub.3-C.sub.60 carbocyclic group and the divalent C.sub.1-C.sub.60 heterocyclic group may include a C.sub.3-C.sub.10 cycloalkylene group, a C.sub.1-C.sub.10 heterocycloalkylene group, a C.sub.3-C.sub.10 cycloalkenylene group, a C.sub.1-C.sub.10 heterocycloalkenylene group, a C.sub.6-C.sub.60 arylene group, a C.sub.1-C.sub.60 heteroarylene group, a divalent non-aromatic condensed polycyclic group, and a divalent non-aromatic condensed heteropolycyclic group.

[0412] The term C.sub.1-C.sub.60 alkyl group as utilized herein refers to a linear or branched aliphatic hydrocarbon monovalent group that has one to sixty carbon atoms, and non-limiting examples thereof may be a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a sec-butyl group, an isobutyl group, a tert-butyl group, an n-pentyl group, a tert-pentyl group, a neopentyl group, an isopentyl group, a sec-pentyl group, a 3-pentyl group, a sec-isopentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, and a tert-decyl group. The term C.sub.1-C.sub.60 alkylene group as utilized herein refers to a divalent group having substantially the same structure as the C.sub.1-C.sub.60 alkyl group.

[0413] The term C.sub.2-C.sub.60 alkenyl group as utilized herein refers to a monovalent hydrocarbon group having at least one carbon-carbon double bond in the middle or at the terminus of a C.sub.2-C.sub.60 alkyl group, and non-limiting examples thereof may be an ethenyl group, a propenyl group, and a butenyl group. The term C.sub.2-C.sub.60 alkenylene group as utilized herein refers to a divalent group having substantially the same structure as the C.sub.2-C.sub.60 alkenyl group.

[0414] The term C.sub.2-C.sub.60 alkynyl group as utilized herein refers to a monovalent hydrocarbon group having at least one carbon-carbon triple bond in the middle or at the terminus of a C.sub.2-C.sub.60 alkyl group, and non-limiting examples thereof may include an ethynyl group, a propynyl group, and/or the like. The term C.sub.2-C.sub.60 alkynylene group as utilized herein refers to a divalent group having substantially the same structure as the C.sub.2-C.sub.60 alkynyl group.

[0415] The term C.sub.1-C.sub.60 alkoxy group as utilized herein refers to a monovalent group represented by OA.sub.101 (wherein A.sub.101 is a C.sub.1-C.sub.60 alkyl group), and non-limiting examples thereof may include a methoxy group, an ethoxy group, and an isopropyloxy group.

[0416] The term C.sub.3-C.sub.10 cycloalkyl group as utilized herein refers to a monovalent saturated hydrocarbon cyclic group having 3 to 10 carbon atoms, and non-limiting examples thereof may be a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, a norbornanyl group (or bicyclo[2.2.1]heptyl group), a bicyclo[1.1.1]pentyl group, a bicyclo[2.1.1]hexyl group, and a bicyclo[2.2.2]octyl group. The term C.sub.3-C.sub.10 cycloalkylene group as utilized herein refers to a divalent group having substantially the same structure as the C.sub.3-C.sub.10 cycloalkyl group.

[0417] The term C.sub.1-C.sub.10 heterocycloalkyl group as utilized herein refers to a monovalent cyclic group of 1 to 10 carbon atoms, further including, in addition to carbon atoms, at least one heteroatom, as ring-forming atoms, and non-limiting examples thereof may be a 1,2,3,4-oxatriazolidinyl group, a tetrahydrofuranyl group, and a tetrahydrothiophenyl group. The term C.sub.1-C.sub.10 heterocycloalkylene group as utilized herein refers to a divalent group having substantially the same structure as the C.sub.1-C.sub.10 heterocycloalkyl group.

[0418] The term C.sub.3-C.sub.10 cycloalkenyl group utilized herein refers to a monovalent cyclic group that has three to ten carbon atoms and at least one carbon-carbon double bond in the ring thereof and no aromaticity, and non-limiting examples thereof may be a cyclopentenyl group, a cyclohexenyl group, and a cycloheptenyl group. The term C.sub.3-C.sub.10 cycloalkenylene group as utilized herein refers to a divalent group having substantially the same structure as the C.sub.3-C.sub.10 cycloalkenyl group.

[0419] The term C.sub.1-C.sub.10 heterocycloalkenyl group as utilized herein refers to a monovalent cyclic group of 1 to 10 carbon atoms, further including, in addition to carbon atoms, at least one heteroatom, as ring-forming atoms, and having at least one double bond in the cyclic structure thereof. Non-limiting examples of the C.sub.1-C.sub.10 heterocycloalkenyl group may include a 4,5-dihydro-1,2,3,4-oxatriazolyl group, a 2,3-dihydrofuranyl group, and a 2,3-dihydrothiophenyl group. The term C.sub.1-C.sub.10 heterocycloalkenylene group as utilized herein refers to a divalent group having substantially the same structure as the C.sub.1-C.sub.10 heterocycloalkenyl group.

[0420] The term C.sub.6-C.sub.60 aryl group as utilized herein refers to a monovalent group having a carbocyclic aromatic system of 6 to 60 carbon atoms, and the term C.sub.6-C.sub.60 arylene group as utilized herein refers to a divalent group having a carbocyclic aromatic system of 6 to 60 carbon atoms. Non-limiting examples of the C.sub.6-C.sub.60 aryl group may be a phenyl group, a pentalenyl group, a naphthyl group, an azulenyl group, an indacenyl group, an acenaphthyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a perylenyl group, a pentaphenyl group, a heptalenyl group, a naphthacenyl group, a picenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, and an ovalenyl group. When the C.sub.6-C.sub.60 aryl group and the C.sub.6-C.sub.60 arylene group each include two or more rings, the rings may be condensed with each other.

[0421] The term C.sub.1-C.sub.60 heteroaryl group as utilized herein refers to a monovalent group having a heterocyclic aromatic system of 1 to 60 carbon atoms, further including, in addition to carbon atoms, at least one heteroatom, as ring-forming atoms. The term C.sub.1-C.sub.60 heteroarylene group as utilized herein refers to a divalent group having a heterocyclic aromatic system of 1 to 60 carbon atoms, further including, in addition to carbon atoms, at least one heteroatom, as ring-forming atoms. Non-limiting examples of the C.sub.1-C.sub.60 heteroaryl group may be a pyridinyl group, a pyrimidinyl group, a pyrazinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, a benzoquinolinyl group, an isoquinolinyl group, a benzoisoquinolinyl group, a quinoxalinyl group, a benzoquinoxalinyl group, a quinazolinyl group, a benzoquinazolinyl group, a cinnolinyl group, a phenanthrolinyl group, a phthalazinyl group, and a naphthyridinyl group. When the C.sub.1-C.sub.60 heteroaryl group and the C.sub.1-C.sub.60 heteroarylene group each include two or more rings, the rings may be condensed with each other.

[0422] The term monovalent non-aromatic condensed polycyclic group as utilized herein refers to a monovalent group (for example, having 8 to 60 carbon atoms) having two or more rings condensed to each other, only carbon atoms as ring-forming atoms, and no aromaticity in its entire molecular structure as a whole. Non-limiting examples of the monovalent non-aromatic condensed polycyclic group are an indenyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, an indenophenanthrenyl group, and an indeno anthracenyl group. The term divalent non-aromatic condensed polycyclic group as utilized herein refers to a divalent group having substantially the same structure as the monovalent non-aromatic condensed polycyclic group described above.

[0423] The term monovalent non-aromatic condensed heteropolycyclic group as utilized herein refers to a monovalent group (for example, having 1 to 60 carbon atoms) having two or more rings condensed to each other, further including, in addition to carbon atoms, at least one heteroatom, as ring-forming atoms, and having non-aromaticity in its entire molecular structure as a whole. Non-limiting examples of the monovalent non-aromatic condensed heteropolycyclic group may be a pyrrolyl group, a thiophenyl group, a furanyl group, an indolyl group, a benzoindolyl group, a naphthoindolyl group, an isoindolyl group, a benzoisoindolyl group, a naphthoisoindolyl group, a benzosilolyl group, a benzothiophenyl group, a benzofuranyl group, a carbazolyl group, a dibenzosilolyl group, a dibenzothiophenyl group, a dibenzofuranyl group, an azacarbazolyl group, an azafluorenyl group, an azadibenzosilolyl group, an azadibenzothiophenyl group, an azadibenzofuranyl group, a pyrazolyl group, an imidazolyl group, a triazolyl group, a tetrazolyl group, an oxazolyl group, an isoxazolyl group, a thiazolyl group, an isothiazolyl group, an oxadiazolyl group, a thiadiazolyl group, a benzopyrazolyl group, a benzimidazolyl group, a benzoxazolyl group, a benzothiazolyl group, a benzoxadiazolyl group, a benzothiadiazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, an imidazotriazinyl group, an imidazopyrazinyl group, an imidazopyridazinyl group, an indeno carbazolyl group, an indolocarbazolyl group, a benzofurocarbazolyl group, a benzothienocarbazolyl group, a benzosilolocarbazolyl group, a benzoindolocarbazolyl group, a benzocarbazolyl group, a benzonaphthofuranyl group, a benzonaphthothiophenyl group, a benzonaphthosilolyl group, a benzofurodibenzofuranyl group, a benzofurodibenzothiophenyl group, and a benzothienodibenzothiophenyl group. The term divalent non-aromatic condensed heteropolycyclic group as utilized herein refers to a divalent group having substantially the same structure as the monovalent non-aromatic condensed heteropolycyclic group described above.

[0424] The term C.sub.6-C.sub.60 aryloxy group as utilized herein indicates OA.sub.102 (wherein A.sub.102 is a C.sub.6-C.sub.60 aryl group), and the term C.sub.6-C.sub.60 arylthio group as utilized herein indicates SA.sub.103 (wherein A.sub.103 is a C.sub.6-C.sub.60 aryl group).

[0425] The term C.sub.7-C.sub.60 arylalkyl group utilized herein refers to -A.sub.104A.sub.105 (where A.sub.104 may be a C.sub.1-C.sub.54 alkylene group, and A.sub.105 may be a C.sub.6-C.sub.59 aryl group), and the term C.sub.2-C.sub.60 heteroarylalkyl group utilized herein refers to -A.sub.106A.sub.107 (where A.sub.106 may be a C.sub.1-C.sub.59 alkylene group, and A.sub.107 may be a C.sub.1-C.sub.59 heteroaryl group).

[0426] The term R.sub.10a as utilized herein refers to: [0427] deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, or a nitro group; [0428] a C.sub.1-C.sub.60 alkyl group, a C.sub.2-C.sub.60 alkenyl group, a C.sub.2-C.sub.60 alkynyl group, or a C.sub.1-C.sub.60 alkoxy group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, a C.sub.7-C.sub.60 arylalkyl group, a C.sub.2-C.sub.60 heteroarylalkyl group, Si(Q.sub.11)(Q.sub.12)(Q.sub.13), N(Q.sub.11)(Q.sub.12), B(Q.sub.11)(Q.sub.12), C(O)(Q.sub.11), S(O).sub.2(Q.sub.11), P(O)(Q.sub.11)(Q.sub.12), or any combination thereof; [0429] a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, a C.sub.7-C.sub.60 arylalkyl group, or a C.sub.2-C.sub.60 heteroarylalkyl group, each unsubstituted or substituted with deuterium, F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a C.sub.1-C.sub.60 alkyl group, a C.sub.2-C.sub.60 alkenyl group, a C.sub.2-C.sub.60 alkynyl group, a C.sub.1-C.sub.60 alkoxy group, a C.sub.3-C.sub.60 carbocyclic group, a C.sub.1-C.sub.60 heterocyclic group, a C.sub.6-C.sub.60 aryloxy group, a C.sub.6-C.sub.60 arylthio group, a C.sub.7-C.sub.60 arylalkyl group, a C.sub.2-C.sub.60 heteroarylalkyl group, Si(Q.sub.21)(Q.sub.22)(Q.sub.23), N(Q.sub.21)(Q.sub.22), B(Q.sub.21)(Q.sub.22), C(O)(Q.sub.21), S(O).sub.2(Q.sub.21), P(O)(Q.sub.21)(Q.sub.22), or any combination thereof; or [0430] Si(Q.sub.31)(Q.sub.32)(Q.sub.33), N(Q.sub.31)(Q.sub.32), B(Q.sub.31)(Q.sub.32), C(O)(Q.sub.31), S(O).sub.2(Q.sub.31), or P(O)(Q.sub.31)(Q.sub.32). [0431] Q.sub.1 to Q.sub.3, Q.sub.11 to Q.sub.13, Q.sub.21 to Q.sub.23 and Q.sub.31 to Q.sub.33 utilized herein may each independently be: hydrogen; deuterium; F; Cl; Br; I; a hydroxyl group; a cyano group; a nitro group; a C.sub.1-C.sub.60 alkyl group; a C.sub.2-C.sub.60 alkenyl group; a C.sub.2-C.sub.60 alkynyl group; a C.sub.1-C.sub.60 alkoxy group; a C.sub.3-C.sub.60 carbocyclic group or a C.sub.1-C.sub.60 heterocyclic group, each unsubstituted or substituted with deuterium, F, a cyano group, a C.sub.1-C.sub.60 alkyl group, a C.sub.1-C.sub.60 alkoxy group, a phenyl group, a biphenyl group, or any combination thereof; a C.sub.7-C.sub.60 arylalkyl group; or a C.sub.2-C.sub.60 heteroarylalkyl group.

[0432] The term heteroatom as utilized herein refers to any atom other than a carbon atom. Non-limiting examples of the heteroatom may be O, S, N, P, Si, B, Ge, Se, and any combinations thereof.

[0433] Ph as utilized herein refers to a phenyl group, Me as utilized herein refers to a methyl group, Et as utilized herein refers to an ethyl group, tert-Bu or Bu.sup.t as utilized herein refers to a tert-butyl group, and OMe as utilized herein refers to a methoxy group.

[0434] The term biphenyl group as utilized herein refers to a phenyl group substituted with a phenyl group. In some embodiments, the biphenyl group is a substituted phenyl group having a C.sub.6-C.sub.60 aryl group as a substituent.

[0435] The term terphenyl group as utilized herein refers to a phenyl group substituted with a biphenyl group. In some embodiments, the terphenyl group is a substituted phenyl group having, as a substituent, a C.sub.6-C.sub.60 aryl group substituted with a C.sub.6-C.sub.60 aryl group.

[0436] In the present disclosure, the x-axis, y-axis, and z-axis are not limited to three axes in an orthogonal coordinate system, and may be interpreted in a broad sense including these axes. For example, the x-axis, y-axis, and z-axis may refer to those orthogonal to each other, or may refer to those in different directions that are not orthogonal to each other.

[0437] * and * as utilized herein, unless defined otherwise, each refer to a binding site to a neighboring atom in a corresponding formula or moiety.

[0438] Hereinafter, compounds according to one or more embodiments and organic light-emitting devices according to one or more embodiments will be described in more detail with reference to Synthesis Examples and Examples. The wording B was utilized instead of A utilized in describing Synthesis Examples refers to that an identical molar equivalent of B was utilized in place of A.

Synthesis Example

Synthesis Example 1: Synthesis of Compound 14

[0439] Compound 14 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00153##

Synthesis of Intermediate 14a

[0440] [1,1-biphenyl]-4-amine (1.2 eq.), 4-bromo-1,1-biphenyl (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water (e.g., was extracted with diethyl ether and washed with water three times), and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 14a. (Yield: 70%)

Synthesis of Intermediate 14b

[0441] Intermediate 14a (1.0 eq.), 1-bromo-4-chlorobenzene (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 14b. (Yield: 62%)

Synthesis of Intermediate 14c

[0442] 3-phenylnaphthalen-2-amine (1.2 eq.), 2-chloro-5,9,9-trimethyl-9H-fluorene (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 50 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 14c. (Yield: 65%)

Synthesis of Compound 14

[0443] Intermediate 14b (1.0 eq.), Intermediate 14c (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 50 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 14. (Yield: 73%)

Synthesis Example 2: Synthesis of Compound 33

[0444] Compound 33 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00154##

Synthesis of Intermediate 33a

[0445] diphenylamine (1.2 eq.), 1-bromo-3-chlorobenzene (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 33a. (Yield: 68%)

Synthesis of Intermediate 33b

[0446] 2-bromo-9,9-dimethyl-9H-fluorene (1.0 eq.), 1-phenylnaphthalen-2-amine (1.2 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 33b. (Yield: 65%)

Synthesis of Compound 33

[0447] Intermediate 33a (1.0 eq.), Intermediate 33b (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 33. (Yield: 63%)

Synthesis Example 3: Synthesis of Compound 50

[0448] Compound 50 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00155##

Synthesis of Intermediate 50a

[0449] aniline (1.2 eq.), 4-bromo-1,1-biphenyl (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 50a. (Yield: 68%)

Synthesis of Intermediate 50b

[0450] Intermediate 50a (1.0 eq.), 1-bromo-3-chlorobenzene (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 50b. (Yield: 66%)

Synthesis of Intermediate 50c

[0451] 1-phenylnaphthalen-2-amine (1.2 eq.), 2-chloro-5-methyl-9,9-diphenyl-9H-fluorene (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 50c. (Yield: 60%)

Synthesis of Compound 50

[0452] Intermediate 50b (1.0 eq.), Intermediate 50c (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 50. (Yield: 70%)

Synthesis Example 4: Synthesis of Compound 62

[0453] Compound 62 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00156##

Synthesis of Intermediate 62a

[0454] aniline (1.2 eq.), 1-bromo-4-cyclohexylbenzene (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 62a. (Yield: 66%)

Synthesis of Intermediate 62b

[0455] Intermediate 62a (1.0 eq.), 1-bromo-3-chlorobenzene (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 62b. (Yield: 70%)

Synthesis of Intermediate 62c

[0456] 3-phenylnaphthalen-2-amine (1.2 eq.), 2-bromo-5,9-diphenyl-9H-carbazole (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 62c. (Yield: 63%)

Synthesis of Compound 62

[0457] Intermediate 62b (1.0 eq.), Intermediate 62c (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 62. (Yield: 58%)

Synthesis Example 5: Synthesis of Compound 86

[0458] Compound 86 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00157##

Synthesis of Intermediate 86a

[0459] Intermediate 62a (1.0 eq.), 4,4-dichloro-1,1:4,1-terphenyl (1.1 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 86a. (Yield: 70%)

Synthesis of Compound 86

[0460] Intermediate 86a (1.0 eq.), Intermediate 50c (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 86. (Yield: 70%)

Synthesis Example 6: Synthesis of Compound 99

[0461] Compound 99 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00158##

Synthesis of Intermediate 99a

[0462] diphenylamine (1.0 eq.), 3,3-dichloro-1, 1:4,1-terphenyl (1.1 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 99a. (Yield: 68%)

Synthesis of Intermediate 99b

[0463] 3-bromodibenzo[b,d]furan (1.0 eq.), 1-phenylnaphthalen-2-amine (1.2 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 99b. (Yield: 60%)

Synthesis of Compound 99

[0464] Intermediate 99a (1.0 eq.), Intermediate 99b (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 99. (Yield: 72%)

Synthesis Example 7: Synthesis of Compound 126

[0465] Compound 126 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00159##

Synthesis of Intermediate 126a

[0466] 4-cyclohexyl-N-phenylaniline (1.0 eq.), 4,4-dichloro-1,1:3,1-terphenyl (1.1 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 126a. (Yield: 60%)

Synthesis of Compound 126

[0467] Intermediate 126a (1.0 eq.), Intermediate 14c (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 126. (Yield: 70%)

Synthesis Example 8: Synthesis of Compound 143

[0468] Compound 143 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00160##

Synthesis of Intermediate 143a

[0469] diphenylamine (1.0 eq.), 3,3-dichloro-1,1:3,1-terphenyl (1.1 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 143a. (Yield: 63%)

Synthesis of Compound 143

[0470] Intermediate 143a (1.0 eq.), Intermediate 50c (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 143. (Yield: 71%)

Synthesis Example 9: Synthesis of Compound 165

[0471] Compound 165 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00161##

Synthesis of Intermediate 165a

[0472] (3-(diphenylamino)phenyl)boronic acid (1.0 eq.), 4-bromo-4-chloro-1,1:4,1-terphenyl (1.0 eq.), tetrakis(triphenylphosphine)palladium (0.1 eq.), and potassium carbonate (3.0 eq.) were dissolved in 200 mL of toluene, 40 mL of ethanol, and 80 mL of water, followed by stirring under a nitrogen atmosphere at a temperature of 110 C. for 24 hours. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 165a. (yield: 75%)

Synthesis of Intermediate 165b

[0473] 2-bromo-9-phenyl-9H-carbazole (1.0 eq.), 3-phenylnaphthalen-2-amine (1.2 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 165b. (Yield: 60%)

Synthesis of Compound 165

[0474] Intermediate 165a (1.0 eq.), Intermediate 165b (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 165. (Yield: 70%)

Synthesis Example 10: Synthesis of Compound 173

[0475] Compound 173 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00162##

Synthesis of Intermediate 173a

[0476] diphenylamine (1.0 eq.), 4,4-dichloro-1,1:2,1:2,1-quaterphenyl (1.1 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 173a. (Yield: 60%)

Synthesis of Compound 173

[0477] Intermediate 173a (1.0 eq.), Intermediate 33b (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 173. (Yield: 65%)

Synthesis Example 11: Synthesis of Compound 181

[0478] Compound 181 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00163##

Synthesis of Compound 181

[0479] Intermediate 33b (2.2 eq.), Intermediate 1,4-dibromobenzene (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 181. (Yield: 76%)

Synthesis Example 12: Synthesis of Compound 182

[0480] Compound 182 according to one or more embodiments may be synthesized, for example, by reactions described below.

##STR00164##

Synthesis of Intermediate 182a

[0481] [1,1-biphenyl]-4-amine (1.2 eq.), 2-bromodibenzo[b,d]thiophene (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 182a. (Yield: 62%)

Synthesis of Intermediate 182b

[0482] Intermediate 182a (1.0 eq.), 1-bromo-4-chlorobenzene (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 182b. (Yield: 65%)

Synthesis of Intermediate 182c

[0483] naphthalen-2-amine (1.2 eq.), 2-bromo-9-phenyl-9H-carbazole (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Intermediate 182c. (Yield: 70%)

Synthesis of Compound 182

[0484] Intermediate 182b (1.0 eq.), Intermediate 182c (1.0 eq.), tris(dibenzylideneacetone)dipalladium(0) (0.05 eq.), tri-tert-butylphosphine (0.10 eq.), and sodium tert-butoxide (1.5 eq.) were dissolved in 100 mL of toluene, followed by stirring under a nitrogen atmosphere at a temperature of 80 C. for 1 hour. Once the reaction was completed, the reaction product was washed three times utilizing diethyl ether and water, and the resulting organic layer was dried over MgSO.sub.4 and then dried under reduced pressure. The resulting product was subjected to column chromatography to obtain Compound 182. (Yield: 62%)

EXAMPLES

Comparative Example 1

[0485] As an anode, a glass substrate (product of Corning Inc.) with a 15 /cm.sup.2 (1,200 ) ITO electrode formed thereon was cut to a size of 50 mm50 mm0.7 mm, sonicated in isopropyl alcohol and pure water each for 5 minutes, and then cleaned by irradiation of ultraviolet rays and exposure of ozone thereto for 30 minutes. Then, the resultant ITO glass substrate was mounted on a vacuum deposition apparatus.

[0486] NPD was deposited on the anode to form a hole injection layer having a thickness of 300 , and then, HT3 was deposited on the hole injection layer to form a hole transport layer having a thickness of 200 , and then, CzSi was deposited on the hole transport layer to form an emission auxiliary layer having a thickness of 100 .

[0487] A host (HT-3 and ET-2), a phosphorescent sensitizer (PS-2), and a t-DABNA boron dopant were co-deposited on the emission auxiliary layer at a weight ratio of 42:42:15:1 to form an emission layer having a thickness of 200 , TSPO1 was deposited on the emission layer to form a hole blocking layer having a thickness of 200 , TPBI was deposited on the hole blocking layer to form an electron transport layer having a thickness of 300 , LiF was deposited on the electron transport layer to form an electron injection layer having a thickness of 10 , and Al was deposited on the electron injection layer to form a cathode having a thickness of 3,000 , thereby completing manufacture of a light-emitting device.

##STR00165## ##STR00166## ##STR00167## ##STR00168## ##STR00169##

Comparative Examples 2 to 9 and Examples 1 to 12

[0488] Organic light-emitting devices were each manufactured in substantially the same manner as in Comparative Example 1, except that, in forming the hole transport layer, respective compounds shown in Table 1 were each utilized instead of HT3.

Evaluation Example

[0489] In the results of evaluation of each of the organic light-emitting devices manufactured according to Examples 1 to 12 and Comparative Examples 1 to 9, each of the driving voltage (V), current density (mA/cm.sup.2), luminance (cd/m.sup.2), luminescence efficiency (cd/A), emission color, and half lifespan (hr @ 100 mA/cm.sup.2) was measured by utilizing Keithley MU 236 and luminance meter PR650. The luminescence efficiency was measured at the current density of 50 mA/cm.sup.2. The lifespan ratio was calculated according to T95 value of each of Examples and Comparative Examples/T95 value of Comparative Example 1. The results are shown in Table 1.

TABLE-US-00001 TABLE 1 Emis- HTL sion (Hole Exciplex Phospho- Boron Driving Efficien- wave Lifespan transport Host rescent Dopant voltage cy length ratio layer) (HT:ET = 5:5) Sensitizer (t-DABNA1) (V) (cd/A) (nm) (T.sub.95) Example 1 Compound HT-3/ET-2 PS-2 t-DABNA 3.65 30.8 460 2.0 14 Example 2 Compound HT-3/ET-2 PS-2 t-DABNA 3.52 31.2 461 2.3 33 Example 3 Compound HT-3/ET-2 PS-2 t-DABNA 3.48 32.0 460 2.6 50 Example 4 Compound HT-3/ET-2 PS-2 t-DABNA 3.34 29.5 459 1.9 62 Example 5 Compound HT-3/ET-2 PS-2 t-DABNA 3.43 32.8 460 2.5 86 Example 6 Compound HT-3/ET-2 PS-2 t-DABNA 3.56 28.8 461 1.7 99 Example 7 Compound HT-3/ET-2 PS-2 t-DABNA 3.48 30.9 461 2.3 126 Example 8 Compound HT-3/ET-2 PS-2 t-DABNA 3.43 32.2 460 2.3 143 Example 9 Compound HT-3/ET-2 PS-2 t-DABNA 3.44 31.1 460 2.5 165 Example Compound HT-3/ET-2 PS-2 t-DABNA 3.41 30.7 461 2.2 10 173 Example Compound HT-3/ET-2 PS-2 t-DABNA 3.82 30.6 462 1.9 11 181 Example Compound HT-3/ET-2 PS-2 t-DABNA 4.10 27.5 461 1.1 12 182 Comparative HT3 HT-3/ET-2 PS-2 t-DABNA 4.40 25.3 462 1 Example 1 Comparative Compound HT-3/ET-2 PS-2 t-DABNA 4.25 26.5 461 0.9 Example 2 A Comparative Compound HT-3/ET-2 PS-2 t-DABNA 4.31 24.8 460 1.1 Example 3 B Comparative Compound HT-3/ET-2 PS-2 t-DABNA 4.51 25.8 463 1.3 Example 4 C Comparative Compound HT-3/ET-2 PS-2 t-DABNA 4.10 28.5 461 0.8 Example 5 D Comparative Compound HT-3/ET-2 PS-2 t-DABNA 4.02 28.8 460 1.1 Example 6 E Comparative compound HT-3/ET-2 PS-2 t-DABNA 4.13 26.0 461 0.9 Example 7 F Comparative Compound HT-3/ET-2 PS-2 t-DABNA 4.05 27.1 462 1.1 Example 8 G Comparative Compound HT-3/ET-2 PS-2 t-DABNA 4.23 27.2 460 0.8 Example 9 H [00170][00171][00172][00173][00174][00175][00176][00177][00178][00179][00180][00181][00182][00183][00184][00185][00186][00187][00188][00189][00190]

[0490] From Table 1, it was confirmed that, in substantially the same blue light range, the organic light-emitting device of Examples 1 to 12 each showed relatively lower driving voltage, higher efficiency, and longer lifespan than the organic light-emitting devices of Comparative Examples 1 to 9.

[0491] The amine-containing compound may be included in the hole transport region of a light-emitting device, which may lead to higher efficiency and longer lifespan of the light-emitting device and a display apparatus.

[0492] An organic light-emitting device including the amine-containing compound according to one or more embodiments may have improved device characteristics including high efficiency, low driving voltage, and long lifespan.

[0493] In one or more embodiments, a high-quality electronic apparatus and electronic equipment may be manufactured by utilizing this organic light-emitting device.

[0494] In the present disclosure, it will be understood that the term comprise(s), include(s), or have/has specifies the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

[0495] Throughout the present disclosure, when a component such as a layer, a film, a region, or a plate is mentioned to be placed on another component, it will be understood that it may be directly on another component or that another component may be interposed therebetween. In some embodiments, directly on may refer to that there are no additional layers, films, regions, plates, etc., between a layer, a film, a region, a plate, etc. and the other part. For example, directly on may refer to two layers or two members are disposed without utilizing an additional member such as an adhesive member therebetween.

[0496] In the present disclosure, although the terms first, second, etc., may be utilized herein to describe one or more elements, components, regions, and/or layers, these elements, components, regions, and/or layers should not be limited by these terms. These terms are only utilized to distinguish one component from another component.

[0497] As utilized herein, the singular forms a, an, one, and the are intended to include the plural forms as well, unless the context clearly indicates otherwise. Further, the use of may when describing embodiments of the present disclosure refers to one or more embodiments of the present disclosure.

[0498] As utilized herein, the terms substantially, about, or similar terms are used as terms of approximation and not as terms of degree, and are intended to account for the inherent deviations in measured or calculated values that would be recognized by those of ordinary skill in the art. About as used herein, is inclusive of the stated value and means within an acceptable range of deviation for the particular value as determined by one of ordinary skill in the art, considering the measurement in question and the error associated with measurement of the particular quantity (i.e., the limitations of the measurement system). For example, about may mean within one or more standard deviations, or within 30%, 20%, 10%, 5% of the stated value.

[0499] Any numerical range recited herein is intended to include all sub-ranges of the same numerical precision subsumed within the recited range. For example, a range of 1.0 to 10.0 is intended to include all subranges between (and including) the recited minimum value of 1.0 and the recited maximum value of 10.0, that is, having a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, such as, for example, 2.4 to 7.6. Any maximum numerical limitation recited herein is intended to include all lower numerical limitations subsumed therein and any minimum numerical limitation recited in the present disclosure is intended to include all higher numerical limitations subsumed therein. Accordingly, Applicant reserves the right to amend the disclosure, including the claims, to expressly recite any sub-range subsumed within the ranges expressly recited herein.

[0500] The organic light-emitting device, the light-emitting apparatus, the display device, the electronic apparatus, the electronic device, or any other relevant devices or components according to embodiments of the present disclosure described herein may be implemented utilizing any suitable hardware, firmware (e.g., an application-specific integrated circuit), software, or a combination of software, firmware, and hardware. For example, the various components of the device may be formed on one integrated circuit (IC) chip or on separate IC chips. Further, the various components of the device may be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on one substrate. Further, the various components of the device may be a process or thread, running on one or more processors, in one or more computing devices, executing computer program instructions and interacting with other system components for performing the various functionalities described herein. The computer program instructions are stored in a memory which may be implemented in a computing device using a standard memory device, such as, for example, a random access memory (RAM). The computer program instructions may also be stored in other non-transitory computer readable media such as, for example, a CD-ROM, flash drive, or the like. Also, a person of skill in the art should recognize that the functionality of various computing devices may be combined or integrated into a single computing device, or the functionality of a particular computing device may be distributed across one or more other computing devices without departing from the scope of the embodiments of the present disclosure.

[0501] It should be understood that embodiments described herein should be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each embodiment should typically be considered as available for other similar features or aspects in other embodiments. While one or more embodiments have been described with reference to the drawings, it will be understood by those of ordinary skill in the art that one or more suitable changes in form and details may be made therein without departing from the spirit and scope as defined by the following claims and equivalents thereof.