The present application relates to a compound which contains an indenocarbazole group, a particular arylamino group and an electron-deficient group bonded to the indenocarbazole group. The compound is suitable for use in electronic devices, in particular in organic electroluminescent devices.

The present specification provides a compound having a spiro structure, and an organic light emitting device including the same.

The present invention relates to the compound represented by the general Formula (I): wherein X is selected from the group consisting of O, S and Se; R.sup.1 and R.sup.2 are independently selected from the group consisting of C.sub.1 to C.sub.12 alkyl, C.sub.6 to C.sub.20 aryl and C.sub.5 to C.sub.20 heteroaryl, wherein the respective C.sub.1 to C.sub.12 alkyl may optionally be substituted with C.sub.6-C.sub.20 aryl; L represents a single bond or is selected from the group consisting of C.sub.6 to C.sub.18 arylene or C.sub.2 to C.sub.20 heteroarylene; wherein the rings B, C and D may each be unsubstituted or substituted and B and C are anellated aromatic 6-membered rings; R.sup.3 and R.sup.4 are independently selected from the group consisting of unsubstituted or substituted C.sub.1 to C.sub.12 alkyl, unsubstituted or substituted C.sub.1 to C.sub.12 fluorinated alkyl, unsubstituted or substituted C.sub.6 to C.sub.20 aryl and unsubstituted or substituted C.sub.5 to C.sub.20 heteroaryl; wherein the substituents, if present in B, C, D, R.sup.3 and R.sup.4, are independently selected from the group consisting of C.sub.1-C.sub.20 linear alkyl, C.sub.3-C.sub.20 branched alkyl, C.sub.3-C.sub.20 cyclic alkyl, C.sub.1-C.sub.20 linear alkoxy, C.sub.3-C.sub.20 branched alkoxy, linear fluorinated C.sub.1-C.sub.12 alkyl, linear fluorinated C.sub.1-C.sub.12 alkoxy, C.sub.3-C.sub.12 branched fluorinated cyclic alkyl, C.sub.3-C.sub.12 fluorinated cyclic alkyl, C.sub.3-C.sub.12 fluorinated cyclic alkoxy, CN, C.sub.6-C.sub.20 aryl, C.sub.2-C.sub.20 heteroaryl, OR, SR, (C═O)R, (C═O)NR2, SiR.sub.3, (S═O)R, (S═O).sub.2R, CR═CR.sub.2, Fluorine, NR.sub.2, NO.sub.2; wherein R is independently selected from C.sub.1-C.sub.20 linear alkyl, C.sub.1-C.sub.20 alkoxy, C.sub.1-C.sub.20 thioalkyl, C.sub.3-C.sub.20 branched alkyl, C.sub.3-C.sub.20 cyclic alkyl, C.sub.3-C.sub.20 branched alkoxy, C.sub.3-C.sub.20 cyclic alkoxy, C.sub.3-C.sub.20 branched thioalkyl, C.sub.3-C.sub.20 cyclic thioalkyl, C.sub.6-C.sub.20 aryl and C.sub.3-C.sub.20 heteroaryl; and R.sup.3 and R.sup.4 may or may not be connected with each other via a single bond, an organic semiconducting layer comprising the same, an organic electronic device comprising the organic semiconducting layer and a display device or a lighting device comprising the same. ##STR00001##

Embodiments provide a cyclic compound, a light-emitting device including the cyclic compound, and an electronic apparatus including the light-emitting device. The light-emitting device includes 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 cyclic compound. The cyclic compound is represented by Formula 1:

##STR00001##

The description of Formula 1 is provided in the specification.

The present invention relates to an alkenyl pyrimidine compound, a preparation method therefor, and an application thereof. Particularly, the present invention relates to a compound having EGFR inhibitory activity and a pharmaceutically acceptable salt thereof or a pharmaceutically acceptable solvate thereof, a preparation method thereof, a pharmaceutical composition containing the compound, and a use of the compound in the preparation of drugs for preventing and/or treating cancer and other diseases mediated by EGFR kinase.

##STR00001##

Provided are a film including a coordination compound and a light-emitting device including the film, wherein the coordination compound has a novel structure in which a ligand including an electron donor atom is coordinated to a boron atom in a heterocyclic compound.

An organic electroluminescence device includes an anode, a cathode, and an emitting layer disposed between the anode and the cathode. The emitting layer comprises a delayed fluorescent compound M2 having at least one deuterium atom and a compound M3 having at least one deuterium atom. A singlet energy S.sub.1(M2) of the compound M2 and a singlet energy S.sub.1(M3) of the compound M3 satisfy the relationship S.sub.1(M3)>S.sub.1(M2).

A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and comprising an emission layer, wherein the interlayer further includes an electron transport region between the emission layer and the second electrode, the electron transport region includes a first compound of Formula 1 and a second compound of Formula 2, the first compound and the second compound are different from each other, and the second compound includes at least one π electron-deficient nitrogen-containing C.sub.1-C.sub.60 cyclic group, where Formulae 1 and 2 are described herein.

A condensed cyclic compound and an organic light-emitting device, the compound being represented by Formula 1: ##STR00001##

The present application provides a light-emitting device and an electronic apparatus including the light-emitting device. The light-emitting device includes: 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 an electron transport layer and an electron injection layer between the emission layer and the second electrode, wherein the electron transport layer includes a mixed layer including a first compound and a second compound, the first compound includes a C.sub.14-C.sub.60 carbocyclic group, and a triplet energy of the first compound is about 2.0 electron volts or lower, the second compound includes a π electron-depleted nitrogen-containing C.sub.1-C.sub.60 cyclic group, and a triplet energy of the second compound is about 2.5 electron volts or greater, and the electron injection layer includes a metal halide and a lanthanum-based metal.