Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes. At least one kind of a compound represented by the following general formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has good luminous efficiency, driving voltage, and driving durability, and has low dependence of such performance on a deposition rate. Wherein: L1 to L4, n1 to n4, A1, A5, A6, A10 and, R are as defined in the application.

Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one kind of compound represented by the following general formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has good luminous efficiency, driving voltage, and driving durability, and has low dependence of such performance on a deposition rate: wherein X, Q, R1 to R8 are as defined in the application.

Abstract: An organic electroluminescent element comprising a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein the light emitting layer includes a compound represented by the following general formula: (R1, R2, and R19 each independently represent a hydrogen atom, a phenyl group, a monovalent oligoaryl group having the number of rings of from 2 to 10, or a monovalent fused polycyclic aromatic hydrocarbon group having the number of rings of from 2 to 6, provided that at least one of R1, R2, and R19 represents a monovalent oligoaryl group having the number of rings of from 2 to 10 or a monovalent fused polycyclic aromatic hydrocarbon group having the number of rings of from 2 to 6, and that the phenyl group, the monovalent oligoaryl group having the number of rings of from 2 to 10, and the monovalent fused polycyclic aromatic hydrocarbon group having the number of rings

Abstract: An organic electroluminescent element using a compound represented by the general formulae (I)-(IV), as disclosed herein, emits dark blue light and exhibits good chromaticity at a wide range of concentrations of light emitting materials.

Abstract: An organic electroluminescent element comprising a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein the light emitting layer includes a compound represented by the following general formula: wherein: R1, R2, and R19; R11 to R18; and A1 to A4 are as defined in the specification.

Abstract: An organic electroluminescent element is provided that has high luminous efficiency, and a slow luminance deterioration rate in the initial stage of lighting. The organic electroluminescent element includes a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein at least one organic layer includes a compound represented by the general formula (1). (R11 to R15 represent hydrogen atoms, alkyl groups, or silyl groups, and any one of R21 to R24 represents a group represented by general formula (1A) or (1B). Ph4 represents a p-phenylene group, and at least one of Ph4a and Ph4b represents a p-phenylene group.

Abstract: An organic electroluminescent device is provided and includes: a pair of electrodes; and a light emitting layer between the electrodes. The organic electroluminescent device has a layer containing a compound represented by formula (I). L represents a divalent linking group, Q1 and Q2 each independently represents an aromatic or aliphatic heterocycle coordinated to Pt through a nitrogen atom, X1 represents a 6-membered ring containing one or more nitrogen atoms, Q1, Q2, and X1 each independently may have a substituent, X2 represents a sulfur atom, a phosphorus atom, an oxygen atom, or a nitrogen atom, and X3 represents a carbon atom, a sulfur atom, or a phosphorus atom.

Abstract: The present invention relates to an electroluminescence device having high luminous efficiency (for example, external quantum efficiency) and high durability and causing little chromaticity shift after device deterioration. The present invention also relates to an organic electroluminescence device material comprising a substrate having thereon a pair of electrode and at least one organic layer between the electrodes, the organic layer containing a light emitting layer, wherein the light emitting layer contains a metal complex having a group represented by formula (I).

Abstract: The organic electroluminescent element using a compound represented by the following general formulae emits dark blue light and exhibits good chromaticity at a wide range of concentrations of light emitting materials. [R1 to R37 represent a hydrogen atom or a substituent; X1 to X32 each independently represent a linking group represented by any one of CR61R62, NR63, O, S, and SiR64R65; A1 to A38 represent CR66 or N; R61 to R66 represent a hydrogen atom or a substituent.

Abstract: Provided is a material for organic electroluminescence device containing (a) a phosphorescent metal complex containing a monoanionic bidentate ligand and a metal having an atomic weight of 40 or greater, wherein the monoanionic bidentate ligand is represented by the following formula (A): wherein, each of E1a, E1d, E1e, E1f, E1k, E1l, E1p, and E1q independently represents a carbon atom or a hetero atom, each of Z1, Z2, and Z3 independently represents an aromatic ring or aromatic heterocycle, the aromatic ring or aromatic heterocycle may have a substituent, and a skeleton represented by the formula (A) has, in total, a 18? electron structure, and the bidentate ligand represented by the formula (A) may be coupled to another ligand to form a tridentate or higher-dentate ligand; and (b) a structural isomer represented by the same chemical formula as that of the phosphorescent metal complex (a) but different sterically in a coordination method of the ligand, wherein the structural isomer (b) is contained in

Abstract: A composition includes: (B) an arylamine derivative having at least one polymerizable group; and (A) a cyano group-free azo based polymerization initiator.

Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which the organic layer includes a compound represented by the following general formula (1), has high luminous efficiency, excellent blue color purity, and a small change in the chromaticity due to deterioration by driving, wherein Cy, Dn1, Ac1, L1, L2, L3, ring Z1, u1, q1, n1, m1, A11, and A12 are as defined herein.

Abstract: The present invention relates to an organic electroluminescence device having high luminous efficiency (for example, external quantum efficiency) and high durability and causing little chromaticity shift after device deterioration. The present invention also relates to an organic electroluminescence device material comprising a substrate having thereon a pair of electrodes and at least one organic layer between the electrodes, the organic layer containing a light emitting layer, wherein the light emitting layer contains a metal complex having a group represented by formula (I).

Abstract: An organic electroluminescent element using a compound represented by the following general formula (I) emits dark blue light and has a high effect of inhibition of voltage during high-luminance driving: wherein R1 to R6; E1 and E2; X1 and X2; and A1 to A8 are as defined herein.

Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes. At least one kind of a compound represented by the following general formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has good luminous efficiency, driving voltage, and driving durability, and has low dependence of such performance on a deposition rate. Wherein: L1 to L4, n1 to n4, A1, A5, A6, A10 and, R are as defined in the application.

Abstract: An organic electroluminescent element using a compound represented by the following general formula (I) emits dark blue light and has small changes in the chromaticity and in the driving voltage even after driving for a long period of time: wherein R1 to R6; Q1 and Q2; X1, X2, X3 and X4 are as defined herein.

Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one kind of compound represented by the following general formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has good luminous efficiency, driving voltage, and driving durability, and has low dependence of such performance on a deposition rate: wherein X, Q, R1 to R8 are as defined in the application.

Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which a compound represented by the following formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has high luminous efficiency and a strong effect of improving the durability by driving aging: wherein X, A1, A2, A3, A4, and R1 to R8 are as defined herein.

Abstract: An organic electroluminescent element using a compound represented by the following general formula emits dark blue light and has a small change in the chromaticity during luminance modulation: wherein each of R1 to R8 represents a hydrogen atom or a substituent; A1 to A4 represent CR31 or N; L and X each independently represent any one of CR32R33, NR34, O, S, and SiR35R36; and each of R31 to R36 represents a hydrogen atom or a substituent.

Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one kind of compound represented by the following general formula is contained in any layer of the at least one organic layer, is an organic electroluminescent element, in which the generation of dark spots during driving is inhibited: wherein Q, Ar, L, and n are as defined in the application.