Abstract: An organic light-emitting device including a first electrode; a second electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer comprises an emission layer, and wherein the organic layer comprises a first compound represented by Formula 1 and a second compound having the lowest excited triplet energy level greater than 2.73 electron volts: wherein in Formula 1, R11 to R33 are the same as described in the specification.

Abstract: Provided are a charge transport material represented by Formula 1, a composition including the charge transport material, and an organic light-emitting device including the composition

Abstract: A condensed cyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the condensed cyclic compound: wherein R1-R6, L1-L2, Ar1, n1, a1-a2, and b3-b6 are described in the specification.

Abstract: An organic light-emitting device comprising: a first electrode; a second electrode; and an emission layer between the first electrode and the second electrode, wherein the emission layer comprising a first compound, a second compound, and a third compound, the first compound comprising at least one compound represented by one of Formulae 1-1 to 1-4, the second compound comprising at least one compound represented by one of Formulae 2-1 to 2-4, and the third compound includes at least one of a triphenylene group, a dibenzofuran group, a dibenzothiophene group, a fluorene group, a biscarbazole group, or any combination thereof, wherein a band gap between a highest occupied molecular orbital (HOMO) band energy level and a lowest unoccupied molecular orbital (LUMO) band energy level of the third compound is 3.3 eV or more. Formulae 1-1 to 1-4 and Formulae 2-1 to 2-4 are described herein.

Abstract: A heterocyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the heterocyclic compound: L1 to L4, L11, a1 to a4, a11, Ar1, Ar2, Ar11, R1 to R7, R11 to R12, b1 to b7, and b11 to b12 are described in the specification.

Abstract: A heterocyclic compound, a composition including the heterocyclic compound, and an organic light-emitting device including the heterocyclic compound are disclosed. The heterocyclic compound is represented by Formula 1: wherein, X1, L1, a1, Ar1, R1 to R6, b3, b4, and b5 are described herein.

Abstract: An organic light-emitting device including a first electrode, a second electrode facing the first electrode, and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes an emission layer, the emission layer includes a host and a fluorescent dopant, the organic light-emitting device satisfies Equation 1, the host includes a compound represented by Formulae 1, 2, or 3, and the fluorescent dopant satisfies Equation 2, wherein Formulae 1-3 and Equations 1-2 are the same as described in the specification.

Abstract: An organic light-emitting device including a first electrode; a second electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer comprises an emission layer, and wherein the organic layer comprises a first compound represented by Formula 1 and a second compound having the lowest excited triplet energy level greater than 2.73 electron volts: wherein in Formula 1, R11 to R33 are the same as described in the specification.

Abstract: An organic light-emitting device including a first electrode, a second electrode facing the first electrode, and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes an emission layer, the emission layer includes a host and a fluorescent dopant, the organic light-emitting device satisfies Equation 1, the host includes a compound represented by Formulae 1, 2, or 3, and the fluorescent dopant satisfies Equation 2, wherein Formulae 1-3 and Equations 1-2 are the same as described in the specification.

Abstract: A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, A1, D1, and R11 to R10 are the same as described in the specification.

Abstract: An organic light-emitting device including a first electrode, a second electrode facing the first electrode, and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer has an emission layer, wherein the emission layer includes a host and a thermally activated delayed fluorescent dopant, wherein the dopant includes a condensed cyclic compound represented by Formula 1, and wherein an amount of the dopant is smaller than that of the host: Ar1—Ar2??Formula 1 wherein Ar1 and Ar2 are the same as described in the specification.

Abstract: A compound represented by the general formula (11) is useful as a light-emitting material. R1, R2, R4 and R5 represent a group represented by the general formula (2), R11 to R20 represent a hydrogen atom or a substituent, and L12 represents a substituted or unsubstituted arylene group or a substituted or unsubstituted heteroarylene group.

Abstract: A condensed cyclic compound represented by Formula 1: Ar1-(L1)a1-Ar2??Formula 1 wherein, in Formula 1, a1, Ar1, Ar2, and L1 are the same as described in the specification.

Abstract: A compound represented by the general formula (1) is useful as a light-emitting material. In the general formula (1), from 0 to 1 of R3 to R5 represents a cyano group, from 1 to 5 of R1 to R5 represent a group represented by the general formula (2) etc., and the balance of R1 to R6 represent a hydrogen atom or a substituent other than above. R11 to R20 represent a hydrogen atom or a substituent, L12 represents a substituted or unsubstituted arylene group or a substituted or unsubstituted heteroarylene group.

Abstract: A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.

Abstract: A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, X11, X12, and R11 to R24 are the same as described in the specification.

Abstract: A heterocyclic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.

Abstract: A charge-transporting material including Structural Unit (1) represented by one of Formulae 1 and 2; and Structural Unit (2) represented by one of Formulae 3 and 4: wherein, in Formulae 1 to 4, groups and variables are the same as described in the specification.

Abstract: An organic light-emitting device including a first electrode, a second electrode facing the first electrode, and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes an emission layer, wherein the emission layer includes a thermally activated delayed fluorescence (TADF) emitter and a host and the TADF emitter is different from the host, and wherein the TDAF emitter is capable of satisfying certain conditions disclosed in the specification.

Abstract: A condensed cyclic compound represented by Formula 1: wherein D1 in Formula 1 is a group represented by Formula 1-1, A1 in Formula 1 is a group represented by Formula 1-2, 1-3, or 1-4, wherein in Formulae 1-1, 1-2, 1-3, and 1-4, groups and variables are the same as described in the specification.