Abstract: Provided is an organic light emitting device comprising: an anode, a cathode, a light emitting layer between the anode and the cathode, an electron inhibition layer between the anode and the light emitting layer, and a hole transport layer between the electron inhibition layer and the anode, wherein the light emitting layer comprises a compound of the following Chemical Formula 1, a compound of the following Chemical Formula 2, and a compound of the following Chemical Formula 3 as defined in the specification: having improved driving voltage, efficiency, and lifetime.

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 hetero-cyclic compound of Chemical Formula 1: and an organic light emitting device comprising the same.

Abstract: Provided is an organic light-emitting device comprising an anode, a cathode, and a light-emitting layer provided between the anode and the cathode, wherein the light-emitting layer comprises a first compound of Chemical Formula 1 and a second compound of Chemical Formula 2: wherein: A is Chemical Formula 1a or 1b: Ar1 and Ar2 are each independently a C6-60 aromatic ring or a C2-60 heteroaromatic ring, and Ar1 and Ar2 are unsubstituted, or substituted with C1-60 alkyl, C6-60 aryl, or C2-60 heteroaryl; Ar?1 and Ar?2 are each independently substituted or unsubstituted C6-60 aryl or substituted or unsubstituted C2-60 heteroaryl; provided that a1+b1+c1+d+e+f is 1 or more; or a2+b2+c2+d+e+f is 1 or more; R?1 and R?2 are each independently hydrogen, deuterium, C1-60 alkyl, C6-60 aryl, or C2-60 heteroaryl; and r and s are each independently 0 to 7.

Abstract: Disclosed are a heterocyclic compound represented by Formula 1 and an organic light emitting device using the same. The heterocyclic compound is used as a material for hole injection layer, hole transport layer, hole injection and transport layer, light emission layer, electron transport layer, or electron injection layer of the organic light emitting device and provides improved efficiency, low driving voltage, and improved lifetime characteristic.

Abstract: Provided is an organic light emitting device, comprising: an anode; a cathode disposed opposite to the anode; and one or more organic material layers disposed between the anode and cathode, the organic material layer including a light emitting layer that includes a compound of Chemical Formula 1 and a compound Chemical Formula 2: wherein: one of R21, R22, R23, and R24 is -L21-Ar1, and the remaining are hydrogen; and one of R31, R32, R33, and R34 is -L22-Ar2, and the remaining are hydrogen; excluding compounds where: R21 is -L21-Ar1 and R31 is -L22-Ar2, R22 is -L21-Ar1 and R32 is -L22-Ar2, R23 is -L21-Ar1 and R33 is -L22-Ar2, or R24 is -L21-Ar1 and R34 is -L22Ar2; L21 and L22 each is a single bond, or a substituted or unsubstituted C6-60 arylene; X2 is O or S; and Ar1 is Chemical Formula 3:

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

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

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 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 is O or S; L1 is a single bond or an unsubstituted phenylene; L2 is a single bond, or a substituted or unsubstituted: phenylene, naphthylene, or biphenylenyl; Y1 to Y3 are each independently N or CR3, where at least one is N; Ar1a and Ar1b are each independently a substituted or unsubstituted: C6-60 aryl or C1-60 heteroaryl containing 1 to 3 heteroatoms selected from N, O and S; R1 and R2 are each independently hydrogen, deuterium, cyano, or a substituted or unsubstituted C1-10 alkyl; each R3 is independently hydrogen, deuterium, halogen, cyano, nitro, amino, or a substituted or unsubstituted: C1-60 alkyl, C1-60 haloalkyl, C1-60 alkoxy, a C1-60 haloalkoxy, C3-60 cycloalkyl, C2-60 alkenyl, C6-60 aryl, C6-60 aryloxy, or a C1-60 heteroaryl containing at least one heteroatom selected from N, O and S; and an organic light emitting device comprising the same.

Abstract: A lidar system for reducing power consumption and method of operating the same are disclosed. The lidar system in a moving object comprises a transmission unit configured to output a light, a reception unit configured to receive a light reflected by an object and a signal processor configured to measure a distance to the object by using the received light. Here, the signal processor controls power consumption of the lidar system by changing a resolution of the transmission unit according to a driving speed or a surrounding environment of the moving object, the transmission unit outputs the light with a resolution determined by the signal processor, and a number of lasers outputted from the transmission unit increases in a field of view FOV as the resolution gets higher.

Abstract: Provided is an organic light-emitting device comprising an anode, a cathode, and a light-emitting layer provided between the anode and the cathode, wherein the light-emitting layer comprises a first compound of Chemical Formula 1 and a second compound of Chemical Formula 2: wherein: A is Chemical Formula 1a or 1b: Ar1 and Ar2 are each independently a C6-60 aromatic ring or a C2-60 heteroaromatic ring, and Ar1 and Ar2 are unsubstituted, or substituted with C1-60 alkyl, C6-60 aryl, or C2-60 heteroaryl; Ar?1 and Ar?2 are each independently substituted or unsubstituted C6-60 aryl or substituted or unsubstituted C2-60 heteroaryl; provided that a1+b1+c1+d+e+f is 1 or more; or a2+b2+c2+d+e+f is 1 or more; R?1 and R?2 are each independently hydrogen, deuterium, C1-60 alkyl, C6-60 aryl, or C2-60 heteroaryl; and r and s are each independently 0 to 7.

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; Y is O or S; each Ar is independently substituted or unsubstituted: C6-60 aryl or C5-60 heteroaryl containing N, O or S; each R1, R2, R3, and R4 independently is hydrogen, deuterium, halogen, cyano, or substituted or unsubstituted: C1-60 alkyl, C1-60 alkoxy, C2-60 alkenyl, C2-60 alkynyl, C3-60 cycloalkyl, C6-60 aryl, or C2-60 heteroaryl containing N, O or S, or two adjacent R4S combine to form a C4-60 aliphatic or aromatic ring; n1, n2, and n3 are each independently 0 or 1, and n4 is 1 to 4, provided that at least one of Ar is substituted with deuterium, or at least one of R1, R2, R3, or R4 is, or is substituted with, one or more deuterium, and an organic light-emitting diode comprising same.

Abstract: Provided is a heterocyclic compound of Chemical Formula 1: where L1 is a single bond or a substituted or unsubstituted C6-60 arylene; L2 is a single bond, a substituted or unsubstituted C6-60 arylene, or a substituted or unsubstituted C5-60 heteroarylene, and Ar1 is one of the following Chemical Formulas 2, 3, 4, or 5: and an organic light emitting device including the same.

Abstract: Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the device including a light emitting layer comprising a first compound of Chemical Formula 1 and a second compound of Chemical Formula 2: A is a benzene ring fused with the two pentagonal rings; Ar1 to Ar3 are each independently a substituted or unsubstituted C6-20 aryl or C5-60 heteroaryl containing one or more of N, O and S; provided that at least one of Ar1-Ar3, and R1 is substituted with at least one deuterium, or at least one of R1 is deuterium, and the first compound comprises at least 5 deuteriums; B is a benzene ring fused with the two pentagonal rings; Ar4 is a substituted or unsubstituted C6-60 aryl; and Ar5 is a substituted or unsubstituted C6-60 aryl or C5-50 heteroaryl containing one of N, O and S.

Abstract: Provided is a compound of Chemical Formula 1 or 2: wherein: X1 to X3 are N or CH, with the proviso that at least one of X1 to X3 is N; Y is O or S; L1 and L2 are each independently a single bond or a substituted or unsubstituted C6-60 arylene; and Ar is a substituted or unsubstituted C1-60 alkyl, a substituted or unsubstituted C1-60 haloalkyl, a substituted or unsubstituted C3-60 cycloalkyl, a substituted or unsubstituted C6-60 aryl, or a substituted or unsubstituted C2-60 heteroaryl containing one to three heteroatoms selected from the group consisting of N, O, and S, 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.

Abstract: The present specification relates to an organic light emitting diode.