Embodiments provide an organometallic compound, a light-emitting device including the organometallic 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 the organometallic compound, which is represented by Formula 1, as defined in the specification:

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A novel organic compound that is highly convenient, useful, or reliable is provided. An organic compound represented by General Formula (G1) is provided. In General Formula (G1), D.sup.1 represents a thiophene-diyl group, a furan-diyl group, a thiophene-containing heteroarylene group, or a furan-containing heteroarylene group; Ar.sup.1 and Ar.sup.2 each independently represent a heteroarylene group or an arylene group; A.sup.1 and A.sup.2 each independently represent hydrogen, deuterium, a nitro group, an alkyl group, a halogen, an alkyl halide group, a cyano group, an alkoxy group, a vinyl group, or a formyl group; n.sub.1 represents an integer of 1 or more; and m.sub.1 and k.sub.1 each independently represent an integer of 0 to 3.

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The invention relates to an organic molecule, in particular for the application in optoelectronic devices. According to the invention, the organic molecule is represented by a plurality of units, wherein each unit includes or consists of a structure represented by Formula IIIe-0

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wherein
Q.sup.1 is selected from the group consisting of C and CR.sup.III;
Q.sup.2 is selected from the group consisting of C and CR.sup.II;
Q.sup.3 is selected from the group consisting of C and CR.sup.I;
Q.sup.4 is selected from the group consisting of C and CR.sup.1;
wherein
at least one substituent selected from the group consisting of Q.sup.2 and Q.sup.3 is C; and
exactly one substituent selected from the group consisting of Q.sup.1 and Q.sup.4 is C, if only one substituent selected from the group consisting of Q.sup.2 and Q.sup.3 is C.

The invention relates to an organic molecule, in particular for the application in optoelectronic devices. According to the invention, the organic molecule has a plurality of units, wherein each unit includes or consists of a structure represented by Formula IV

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wherein m is an integer from 2 to 6; n = 0 or 1; and X is at each occurrence independently selected from the group consisting of a direct bond, CR.sup.3R.sup.4, C═CR.sup.3R.sup.4, C═O, C═NR.sup.3, NR.sup.3 O, SiR.sup.3R.sup.4, S, S(0) and S(O).sub.2.

A display device includes a display panel, wherein the display panel has a display area and a non-display area along a periphery of the display area, the non-display area includes a frame area and also includes an intermediate area between the display area and the frame area, and letting a first areal ratio be an areal fraction of lateral cross-sectional areas of a plurality of spacers per unit area in the display area, a second areal ratio be an areal fraction of lateral cross-sectional areas of the plurality of spacers per unit area in the intermediate area, and a third areal ratio be an areal fraction of lateral cross-sectional areas of the plurality of spacers per unit area in the frame area, the plurality of spacers are arranged so as to satisfy relations, first areal ratio < second areal ratio < third areal ratio.

Embodiments provide a display device that includes first, second, and third light emitting regions, and first, second, and third light emitting elements. The first, second, and third light emitting regions are spaced apart in a plan view. The first, second, and third light emitting elements respectively correspond to the first, second, and third light emitting regions. Each of the first, second, and third light emitting elements includes a first electrode, a second electrode, a first light emitting unit, a second light emitting unit, and a charge generation layer that includes a p-type charge generation layer and an n-type charge generation layer, wherein the p-type charge generation layer includes first, second, and third p-type charge generation layers.

An organic light-emitting device having low-driving voltage, improved efficiency, and long lifespan includes: a first electrode; a second electrode facing the first electrode; a first layer between the first electrode and the second electrode, the first layer including a first compound; a second layer between the first layer and the second electrode, the second layer including a second compound; and a third layer between the second layer and the second electrode, the third layer including a third compound; wherein the first compound does not include a nitrogen-containing heterocyclic group comprising *═N—*′ as a ring forming moiety, and wherein the first compound, the second compound, and the third compound each independently include at least one group selected from groups represented by Formulae A to C:

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A mask assembly and a method of patterning a semiconductor film using the mask assembly. A first mask comprises a plurality of first light shielding regions, a plurality of first light transmissive regions, and at least one first light shielding island; a boundary of a first light shielding island is not connected to a boundary of the first mask; a second mask comprises a plurality of second light shielding regions, a plurality of second light transmissive regions, and at least one second light shielding island; a boundary of the second light shielding island is not connected to a boundary of the second mask; the first light shielding region and the second light shielding region are complementarily arranged, the first light transmissive region and the second light transmissive region are complementarily disposed.

The present disclosure discloses a display panel. The display panel may include multiple thin film layers. The multiple thin film layers may include a first layer and a second layer adjacent to the first layer. The first layer may define a recess at a face toward the second layer. The second layer may include a protrusion at a face toward the first layer. The protrusion may be engaged in the recess. A diameter of a tip of the protrusion may be larger than a diameter of a root of the protrusion. A shape of a space in the recess may match with a contour of the protrusion.

The disclosure provides a quantum dot composition, a quantum dot luminescent material, a preparation method thereof and a light-emitting device containing the same. The quantum dot composition includes a microemulsion, a polymer precursor dispersing the microemulsion, wherein the microemulsion includes quantum dots, a dissolution medium dissolving the quantum dots, and an emulsifier encapsulating the dissolution medium.