Abstract: Provided is a heterocyclic compound of Chemical Formula 1: wherein: X is O or S; Y1, Y2 and Y3 are each independently CH or N, provided that at least one is N; L1 and L2 are each independently a direct bond, a substituted or unsubstituted C6-60 arylene, or a substituted or unsubstituted C5-60 heteroarylene containing at least one of N, O and S; and Ar is a substituted or unsubstituted C6-60 aryl, and Ar2 and Ar3 are each independently a substituted or unsubstituted C6-60 aryl or a C5-60 heteroaryl containing at least one of N, O and S, provided that when all of Ar1, Ar2 and Ar3 are a substituted or unsubstituted C6-60 aryl, any one of Ar1, Ar2 and Ar3 is substituted with 4 or more deuteriums; and an organic light emitting device including the same.

Abstract: A method for diagnosing a transmission based on artificial intelligence may include collecting vehicle information including shift data of a vehicle, pre-processing and labeling the transmission shift data, generating a candidate feature set list including a plurality of candidate feature sets satisfying a specific criterion among feature sets stored in a database, determining, using a supervised learning-based artificial intelligence and for each of the plurality of candidate feature sets, an evaluation index of a transmission shift comfort level associated with the transmission shift data, and determining a feature set of the vehicle by selecting, among candidate feature sets having evaluation indexes above a threshold value, a candidate feature set having a highest evaluation index.

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 including the same.

Abstract: An organic light emitting device comprising: an anode; a cathode; and between the anode and the cathode a light emitting layer including a compound of Chemical Formula 1, and a compound of Chemical Formula 2: wherein: X1 is O or S, each X2 is independently N or CH, provided that at least one is N, each Ar1, Ar2 and Ar3 each independently is a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O, and S, B is benzene fused with two adjacent rings, and the other substituents are as defined in the specification. When compounds by Chemical Formulae 1 and 2 are used in the light emitting layer, the device has improved driving voltage, efficiency, and lifetime.

Abstract: A novel compound of Chemical Formula 1: wherein: Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or a substituted or unsubstituted C2-60 heteroaryl containing one or more heteroatoms selected from the group consisting of N, O and S; each Z is independently hydrogen or deuterium; one of X1 and X2 is carbon (C) connected to a substituent of the following Chemical Formula 2, and the other is CH or CD: Y is O or S; and the other substituents are as defined in the specification; and an organic light emitting device including the same. When the compound of Chemical Formula 1 is used as a material in an organic material layer of an organic light-emitting device, the device exhibits excellent characteristics in terms of efficiency and lifetime.

Abstract: An organic light emitting device comprising: an anode; a cathode; and a light emitting layer between the anode and cathode, the light emitting layer comprising a compound of Chemical Formula 1, and a compound of Chemical Formula 2: wherein: X1 is O or S; at least one of X2 is N; each Ar1, and Ar2 and Ar3 are independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O, and S; at least one of the Ar2 and Ar3 is substituted with at least one deuterium, or at least one of the R3 and R4 is deuterium; and the other substituents are defined in the specification. When light emitting layer includes a compound of Chemical Formulae 1 and 2, the organic light emitting device exhibits improved driving voltage, efficiency and lifetime.

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

Abstract: Provided is a novel compound of Chemical Formula 1: wherein in Chemical Formula 1: n is an integer of 1 to 6; X is O or S; L1 and L2 are each independently a single bond, substituted or unsubstituted C6-60 arylene, or substituted or unsubstituted C2-60 heteroarylene containing at least one heteroatom selected from the group consisting of O, S, Si, P and B; Ar1 is cyano, substituted or unsubstituted C6-60 aryl, or substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of O, S, Si, P and B; and Ar2 and Ar3 are each independently substituted or unsubstituted C6-60 aryl, or substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of O, S, Si, P and B; 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 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: A novel compound of Chemical Formula 1 and an organic light emitting device including the same: where Y is O or S: Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more heteroatoms of N, O and S; A and B are each independently a C6-60 aromatic ring or a C2-60 heteroaromatic ring containing one or more heteroatoms of N, O and S which is fused with an adjacent pentagonal ring; D is deuterium; R1 and R2 are each independently deuterium or a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more heteroatoms of N, O and S, provided that at least one of R1 and R2 is deuterium; and the other substituent are as defined in the specification.

Abstract: Provided is a novel compound of Chemical Formula 1: wherein in Chemical Formula 1: n is an integer of 1 to 6; X is O or S; Ar1 is a cyano, 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 O, S, Si, P and B; and Ar2 and Ar3 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 O, S, Si, P and B; and an organic light emitting device including the same. When the compound of Chemical Formula 1 is used as a material for an organic material layer of an organic light emitting device, and can improve efficiency, low driving voltage, and/or lifespan of the organic light emitting device.

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: 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 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: Provided is a novel compound of Chemical Formula 1: where Y is O or S; D is deuterium, L is a single bond, substituted or unsubstituted C6-60 arylene, or substituted or unsubstituted C2-60 heteroarylene containing at least one of N, O and S; L1 and L2 are each independently a single bond or substituted or unsubstituted C6-60 arylene; Ar1 and Ar2 are each independently substituted or unsubstituted C6-60 aryl or substituted or unsubstituted C2-60 heteroaryl containing at least one of N, O and S; and R is hydrogen or C6-60 aryl that is unsubstituted or substituted with deuterium and an organic light-emitting device including the same. An organic light-emitting device containing the compound of Chemical Formula 1 as a host material of the light emitting layer exhibits significantly improved lifespan without a decrease in efficiency.

Abstract: Provided is compound of Chemical Formula 1: wherein: each X1 is independently N or CH, provided that at least one of them is N; each X2 is independently N or CH, provided that at least one of them is N; Ar1 to Ar4 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; Ar5 is a substituted or unsubstituted C6-60 aryl or a substituted or unsubstituted C5-60 heteroaryl containing one or more of N, O, and S; each R1 is independently hydrogen, deuterium, a substituted or unsubstituted C1-60 alkyl, a substituted or unsubstituted C3-60 cycloalkyl, a substituted or unsubstituted C6-60 aryl, or a substituted or unsubstituted C5-60 heteroaryl containing one or more of N, O, and S; and n is an integer of 0 to 4, and an organic light emitting device including the same.

Abstract: Provided is a compound of Chemical Formula 1: wherein, in Chemical Formula 1: X1 to X6 are each independently CH or N, with the proviso that at least one of X1 to X6 is N; Ar1 to Ar4 are each independently a substituted or unsubstituted C6-60 aryl, with the proviso that at least one of Ar1 to Ar4 is a C6-60 aryl containing deuterium as a substituent; R1 is hydrogen, deuterium, a substituted or unsubstituted C6-60 aryl, or a substituted or unsubstituted C2-60 heteroaryl containing one or more heteroatoms selected from the group consisting of N, O, and S; and n is an integer of 0 to 8, and an organic light emitting device including the using same.

Abstract: Provided is an organic light-emitting device having improved driving voltage, efficiency, and lifespan, the device comprising a light emitting layer between an anode and a cathode, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: Y is O or S, X1, X2 and X3 are each independently CH or N, provided that at least one of X1, X2 and X3 is N, A is a benzene ring fused with two adjacent rings, Ar1-Ar4 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, provided that at least one of Ar3 and Ar4 is substituted with at least one deuterium, and the other substituents are as defined in the specification.

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