Abstract: A heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device including the same, and the heterocyclic compound providing improved efficiency, low driving voltage, and improved lifetime characteristics of the organic light emitting device.

Abstract: A cyclic compound represented by Chemical Formula 1 and an organic light emitting device using the same, the compound used as a material of an organic material layer of the organic light emitting device and providing improved properties of efficiency, driving voltage, and lifetime characteristics of the organic light emitting device.

Abstract: Provided is a compound of Chemical Formula 1: wherein: X is O or S; L is a direct bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group; Ar1 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; Ar2 is a substituted or unsubstituted aryl group having 6 to 30 carbon atoms; R1 to R8 are the same as or different from each other, and each independently is hydrogen, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; and m and n are each an integer of 0 to 7, and when m is 2 or greater, R7s are the same as or different from each other, and when n is 2 or greater, R8s are the same as or different from each other, and an organic light emitting device including the same.

Abstract: Provided is a compound of Chemical Formula 1: wherein: X1 to X6 are each independently CH or N, provided that at least one of X1 to X6 is N; Ar1 to Ar4 are each independently a substituted or unsubstituted: C6-60 aryl or C2-60 heteroaryl containing one or more of N, O, and S, provided that at least one of Ar1 to Ar4 is any one of: R2 is hydrogen, deuterium, or a substituted or unsubstituted: C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S; each R3 is independently hydrogen, deuterium, or a substituted or unsubstituted: C6-60 aryl or C2-60 heteroaryl containing one or more of N, O, and S; each R1 is independently hydrogen, deuterium, or a substituted or unsubstituted: C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S; and n is an integer of 0 to 8, and organic light emitting devices including the same.

Abstract: Provided is a compound of Chemical Formula 1: wherein: each X is independently N or CH, provided that at least one X is N; Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or a substituted or unsubstituted C5-60 heteroaryl containing one or more of N, O and S; Ar3 is a substituted or unsubstituted C5-60 heteroaryl containing at least one N; D is a substituent of any one of the following Chemical Formulas 2-1 to 2-3: wherein: Y1 is O, S, NR2, or CR3R4; n is an integer of 0 to 10; each R1 is independently hydrogen, deuterium, or a substituted or unsubstituted: C1-60 alkyl, C3-60 cycloalkyl, C6-60 aryl, or C5-60 heteroaryl containing one or more of N, O and S; and R2 to R4 are each independently a substituted or unsubstituted C1-60 alkyl or a substituted or unsubstituted C6-60 aryl, and an organic light emitting device comprising the same.

Abstract: A heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device comprising the same, and the heterocyclic compound used as a material of an organic material layer of the organic light emitting device and providing improved properties of efficiency, driving voltage and lifetime characteristics of the organic light emitting device.

Abstract: Provided is a novel compound of Chemical Formula 1: wherein: X1 to X3 are each independently N or CH, provided that at least two are N, Y1 and Y2 are independently O or S, L is a single bond, or a substituted or unsubstituted C6-60 arylene or C2-60 heteroarylene, provided that L is bonded to a position *1 or *2, Ar1 and Ar2 are independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O, and S, and R1 to R4 are each independently hydrogen, deuterium, halogen, cyano, nitro, amino, silyl, or a substituted or unsubstituted: C1-60 alkyl, C1-60 haloalkyl, C1-60 alkoxy, C1-60 haloalkoxy, C3-60 cycloalkyl, C2-60 alkenyl, C6-60 aryl, C6-60 aryloxy, C2-60 heteroaryl containing one or more of N, O, and S, or adjacent substituents combine to form a C6-60 aromatic or non-aromatic ring, or a C2-60 heteroaromatic ring, and an organic light emitting device including the same.

Abstract: A heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device comprising the same, and the heterocyclic compound providing improved efficiency, low driving voltage, and improved lifetime characteristics of the organic light emitting device.

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

Abstract: Provided is a novel compound of Chemical Formula 1: wherein, in Chemical Formula 1; X is O, S, or C(R1R2); R1 and R2 are each independently a substituted or unsubstituted C1-60 alkyl; Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl; R1? and R2? are each independently hydrogen, deuterium, halogen, cyano, nitro, amino, or a substituted or unsubstituted C1-60 alkyl; R3?, R4?, R5?, and R6? are each independently hydrogen, deuterium, halogen, cyano, nitro, amino, or a substituted or unsubstituted C1-60 alkyl; a, d, and f are each independently an integer of 0 to 4; b is an integer of 0 to 2; and c and e are each independently an integer of 0 to 3, and an organic light emitting device including the same.

Abstract: The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same. The compound is used as a material of an organic material layer of the organic light emitting device.

Abstract: A novel heterocyclic compound of Chemical Formula 1 and organic light emitting device including the same.

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

Abstract: The present disclosure relates to a novel cyclic compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.

Abstract: A novel compound of the following Chemical Formula 1, and an organic light emitting device comprising the same.

Abstract: Provided is a compound of Chemical Formula 1: wherein: X1 to X3 are each independently N or CH, provided that at least two of X1 to X3 are N, Y is O or S, L1 and L2 are each independently a single bond, or a substituted or unsubstituted C6-60 arylene or C2-60 heteroarylene containing one or more of O, N, Si, or S, and A is Chemical Formula 2 or 3, each Z is independently CR, or two adjacent Zs are C each linked to the following Chemical Formula 4 at * to form a fused ring, and the rest are each independently CR: T is O, S, CQ1Q2, or NAr4, and Ar1 to Ar4 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O, or S, and an organic light emitting device including the same.

Abstract: Provided is a compound of Chemical Formula 1: wherein: X1 to X3 are each independently N or CH, and at least two of X1 to X3 are N, Y is O or S, A is Chemical Formula 2 or 3: each Z is independently CR, or 2 adjacent Zs are C each linked to Chemical Formula 4 to form a fused ring, and the rest are each independently CR; T is O, S, CQ1Q2, or NAr4, Ar1 to Ar4 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O, and S, and L1 and L2 are each independently a single bond or a substituted or unsubstituted C6-60 arylene or C2-60 heteroarylene containing one or more of O, N, Si and S, and an organic light emitting device including the same.

Abstract: A compound of Chemical Formula 1, and an organic light emitting device including the same.

Abstract: A novel compound of the following Chemical Formula 1, and an organic light emitting device including the same.

Abstract: A novel heterocyclic compound of Chemical Formula 1 and an organic light emitting device including the same. wherein one of Ar1 to Ar3 is of the following Chemical Formula 2, and one of Ar4 to Ar7 is a substituted or unsubstituted dibenzofuran; or a substituted or unsubstituted dibenzothiophene, the rest being hydrogen.