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.

Abstract: Provided is a heterocyclic compound of Chemical Formula 1: wherein: Y1 is O or S; Ar1 is a substituted C6-60 aryl; or a substituted or unsubstituted C1-60 heteroaryl containing one or more heteroatoms selected from among O, N, Si, and S; L is a single bond; a substituted or unsubstituted C6-60 arylene; or a substituted or unsubstituted C1-60 heteroarylene containing one or more heteroatoms selected from among O, N, Si, and S; R1 to R3 are each independently hydrogen; deuterium; a halogen; cyano; nitro; amino; a substituted or unsubstituted C1-60 alkyl; a substituted or unsubstituted C1-60 haloalkyl; or a substituted or unsubstituted: C1-60 alkoxy, C1-60 haloalkoxy, C3-60 cycloalkyl, C2-60 alkenyl, C6-60 aryl, C6-60 aryloxy, or C1-60 heteroaryl containing one or more heteroatoms selected from among N, O, and S, and n1 to n3 are each independently 1 to 5, and an organic light emitting device including the same.

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

Abstract: The present specification provides a compound represented by Formula 1 and an organic light emitting device including the same. The compound is used for an organic material layer of the organic light emitting device.

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

Abstract: Provided is a compound of chemical formula wherein: Y is O or S; X1 to X3 are each N or CH, and one or more of X1 to X3 is N; and Ar1 to Ar4 are the same as or different from each other, and each independently is an aryl group having 6 to 20 carbon atoms that is unsubstituted or substituted with nitrile or a heteroaryl group having 2 to 20 carbon atoms; or a tricyclic heteroaryl group having 2 to 20 carbon atoms that is unsubstituted or substituted with an aryl group having 6 to 20 carbon atoms, and an organic light emitting device including the same.

Abstract: Provided is a heterocyclic compound of Chemical Formula 1: wherein: X1 to X3 are each independently is N or CH; at least two of X1 to X3 are N; Y is O or S; R1 to R6 each independently is hydrogen, deuterium, a halogen group, a nitrile group, or a substituted or unsubstituted: alkyl, silyl, aryl or heteroaryl group; Ar1 and Ar2 each independently is a substituted or unsubstituted aryl or heteroaryl group; L1 and L2 each independently is a direct bond, or a substituted or unsubstituted arylene or heteroarylene group; Z is a nitrile group, a halogen group, or a substituted or unsubstituted: alkyl, silyl, aryl or heteroaryl group; n is an integer of 0 to 2; and a and b are an integer of 0 to 5, and an organic light-emitting device including the same.

Abstract: An organic light emitting device having improved driving voltage, efficiency and lifetime, the organic light emitting device having an anode, a cathode, and a light emitting layer disposed between the anode and the cathode, wherein the light emitting layer includes a compound of the following Chemical Formula 1, and a compound of the following Chemical Formula 2:

Abstract: Provided is a compound of Chemical Formula 1: wherein: Y is O or S; X1 to X3 are each N or CH, and one or more of X1 to X3 is N; and Ar1 to Ar4 are the same as or different from each other, and each independently is an aryl group having 6 to 20 carbon atoms that is unsubstituted or substituted with nitrile or a heteroaryl group having 2 to 20 carbon atoms; or a tricyclic heteroaryl group having 2 to 20 carbon atoms that is unsubstituted or substituted with an aryl group having 6 to 20 carbon atoms, and an organic light emitting device including the same.

Abstract: Provided is a compound of Chemical Formula 1: wherein: each X is independently N or CH, with the proviso that at least one X is N; Y is O or S; L1 and L2 are each independently a single bond, a substituted or unsubstituted C6-60 arylene, or a substituted or unsubstituted C2-60 heteroarylene containing at least one heteroatom selected from the group consisting of N, O, and S; Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl, or a substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of N, O, and S; and Ar3 is a substituted or unsubstituted C6-60 aryl, or a substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of N, O, and S; and to an organic light emitting device including the same.