Abstract: Provided is a compound of Chemical Formula 1 or 2: wherein: R1 to R4 are each independently hydrogen or deuterium; n1 to n4 are an integer of 1 to 4; L1 and L2 are each independently a direct bond or a substituted or unsubstituted C6-60 arylene; and Ar1 and Ar2 are each independently a substituent of Chemical Formula 3: wherein X1 to X5 are each independently N or C(R5), wherein at least two of X1 to X5 are N; and each R5 is independently hydrogen, deuterium, a substituted or unsubstituted C1-20 alkyl, a substituted or unsubstituted C6-60 aryl, or a substituted or unsubstituted C2-60 heteroaryl containing at least one of N, O and S, or two adjacent R5s combine to form a benzene ring; and an organic light emitting device including the same. The device exhibits significantly superior efficiency and lifespan.

Abstract: Provided is a compound of Chemical Formula 1: wherein X is O or S; L1 and L2 each independently is a direct bond or a substituted or unsubstituted arylene group; X1 is N or CR1, X2 is N or CR2, X3 is N or CR3, and at least two of X1 to X3 are N; R1 to R3 each independently is hydrogen, deuterium, or a substituted or unsubstituted alkyl, aryl or heteroaryl group; Ar1 and Ar2 each independently is hydrogen, deuterium, or a substituted or unsubstituted alkyl, aryl or heteroaryl group; positions at which ?is substituted with ?are asymmetric; m1, m2, n1 and n2 each independently is 0 or 1; and m1+m2 is 1, and n1+n2 is 1, and an organic light emitting device comprising the same.

Abstract: The present specification provides a hetero-cyclic compound and an organic light emitting device comprising the same.

Abstract: Provided is an organic light-emitting device comprising: a light emitting layer comprising a compound of the following Chemical Formula 1, and one or more of an electron transport layer, an electron injection layer, or an electron transport and injection layer that comprises at least one of a compound of the following Chemical Formula 2 and a compound of the following Chemical Formula 3: wherein Ar2 and Ar3 are each independently a substituent of Chemical Formula 4, where X1 to X5 are each independently N or C(R8), wherein at least two of X1 to X5 are N, and the other substituents are as defined in the specification. The organic light emitting device including the heterocyclic compound of Chemical Formula 1 and the heterocyclic compound of Chemical Formula 2 or 3 had significantly superior efficiency and lifespan.

Abstract: The present specification relates to a hetero-cyclic compound and an organic light emitting device comprising the same.

Abstract: Provided is a heterocyclic compound of Formula 1: and an organic light emitting device comprising the same.

Abstract: The present invention relates to a novel heterocyclic compound and an organic light emitting device comprising the same.

Abstract: Provided is a compound of Chemical Formula 1: wherein: L1 and L2 are the same as or different from each other, and are each independently an arylene group which is unsubstituted or substituted with an aryl group, Ar1 and Ar2 are the same as or different from each other, and are each independently the following Chemical Formula A, where X1 is N or CR1, X2 is N or CR2, X3 is N or CR3, X4 is N or CR4, and X5 is N or CR5, at least two of X1 to X5 are N, and the other substituents are as defined in the specification, and an organic light emitting device including the same. The organic light emitting device including the compound of Chemical Formula 1 exhibits remarkably excellent characteristics in terms of voltage, efficiency and service life.

Abstract: Provided is a compound of Chemical Formula 1: HAr-L1-L2-Ar1 wherein: HAr is one of Chemical Formula A-1 or A-2: one of L1 and L2 is a substituted or unsubstituted monocyclic or polycyclic arylene group, or a substituted or unsubstituted monocyclic or polycyclic heteroarylene group, and the other one is a direct bond; and Ar1 is a cyano group, a substituted or unsubstituted phenyl group; a substituted or unsubstituted biphenyl group; a substituted or unsubstituted pyridinyl group; a substituted or unsubstituted triazinyl group; a substituted or unsubstituted polycyclic aryl group; or a substituted or unsubstituted polycyclic heteroaryl group, and an organic light emitting device comprising the same.

Abstract: The present application relates to a compound of Chemical Formula 1 and an organic light emitting device including the same.

Abstract: Provided is a benzimidazole-substituted fluoranthene compound of Chemical Formula 1: where the substituents are as described in the specification, and an organic light emitting device including the same.

Abstract: The present application relates to a compound of Chemical Formula 1 and an organic light emitting device including the same: wherein Ar1 to Ar3, L1 and L2 are described herein.

Abstract: The present specification relates to an organic light emitting device having high light emission efficiency.

Abstract: Provided is a compound of Formula 1: where X is O or S; Ar1 is an aryl having 6 to 20 carbon atoms substituted with at least one functional group selected from the group consisting of cyano, pyridinyl, benzimidazolyl and diphenylphosphine oxide, or a substituted or unsubstituted heteroaryl having 3 to 20 carbon atoms containing at least one N; and Ar2 is a functional group of Formula 2 below, with the proviso that Ar1 and Ar2 are different from each other, where Ar3 is an aryl having 6 to 20 carbon atoms, and m is an integer of 0 to 2, and an organic light emitting device comprising the same.

Abstract: Provided is a compound of Chemical Formula 1: HAr-L1-L2-Ar1??Chemical Formula 1 wherein: HAr is a group of the following Chemical Formula A-1 or A-2; L1 and L2 are the same as or different from each other, and each independently is a direct bond, a substituted or unsubstituted monocyclic or polycyclic arylene group, or a substituted or unsubstituted monocyclic or polycyclic heteroarylene group; and Ar1 is a substituted or unsubstituted monocyclic or polycyclic aryl group, or a substituted or unsubstituted monocyclic or polycyclic heteroaryl group; wherein: R1 to R3 are the same as or different from each other, and each independently is a substituted or unsubstituted linear or branched alkyl group; and is a site bonding to L1 of Chemical Formula 1, and an organic light emitting device comprising the same.

Abstract: The present specification provides a compound of Chemical Formula 1 and an organic light emitting device including the same. The compound of Chemical Formula 1 used in an organic material layer of the organic light emitting device provides improved driving voltage and light efficiency, and increased service lifetime.

Abstract: Provided are a compound of Chemical Formula 1: and an organic light emitting device including the same.

Abstract: Provided is a compound of Chemical Formula 1: wherein n is 0 or 1, when n is 0, at least one of R1 to R10 is a group of Chemical Formula A, and when n is 1, at least one of R1 to R12 is a group of Chemical Formula A: wherein L1 is a direct bond, or a substituted or unsubstituted arylene or heteroarylene group; l1 is an integer of 1 to 5; m is an integer of 1 to 3; when l1 is 2 or greater, the two or more L1s are the same as or different from each other, and an organic light emitting device including the same.

Abstract: Provided is an organic light-emitting device including an anode; a cathode; a light-emitting layer between the anode and the cathode and including a compound of Chemical Formula 2: a first organic material layer between the anode and the light-emitting layer and including a compound of Chemical Formula 1: and a second organic material layer between the light-emitting layer and the cathode and including a compound of Chemical Formula 3: wherein: Ar101, Ar102 and R101 to R108 are each independently hydrogen, deuterium, or a substituted or unsubstituted alkyl or aryl group; Ar1 and Ar2 are each independently hydrogen, deuterium, a halogen, a cyano, or a substituted or unsubstituted silyl, alkyl, cycloalkyl, or aryl group; R201 to R204 are each independently hydrogen, deuterium, a halogen, a cyano, or a substituted or unsubstituted alkyl, cycloalkyl, aryl group, or heterocyclic group; and Z is O or S.

Abstract: The present invention relates to an organic light emitting device comprising a light emitting layer and an electron transport layer which satisfy the following mathematical expressions, EHOMO-ET>EHOMO-BH and ELUMO-ET>ELUMO-GH, and having improved driving voltage, efficiency, and lifetime.