Abstract: An amine compound represented by Formula 1, and an organic light emitting device including the same: wherein X may be selected from the compounds represented by Formula 2: When the amine compound represented by Formula 1 is included in the hole transport region of an organic light emitting device, the organic light emitting device may achieve long lifespan and high efficiency.

Abstract: An organic electroluminescence (EL) device, including an anode; a cathode; and an emission layer between the anode and the cathode, the emission layer emitting a light via a singlet excited state, a stacking structure of at least three layers having different components being provided between the anode and the emission layer, wherein the stacking structure includes: a first layer including an electron accepting compound having a lowest unoccupied molecular orbital (LUMO) level of about ?9.0 eV to about ?4.0 eV; a second layer including a compound represented by the following Formula (1), the second layer being closer to the emission layer than the first layer; and a third layer including a compound represented by the following Formula (2), the third layer being closer to the emission layer than the second layer, wherein the emission layer includes a compound represented by the following Formula (3).

Abstract: A material for an organic electroluminescent device having high emission efficiency and long life and an organic electroluminescent device including the same. The material for an organic electroluminescent device is represented by the following Formula 5.

Abstract: A material for an organic electroluminescent device, represented by Formula 1, and an organic electroluminescent device including the same. The material for an organic electroluminescent device according to an embodiment of the present disclosure may be a triamine derivative in which the nitrogen atoms are connected (e.g., coupled) via the meta ring positions of L1 and L2 linkers, which may be represented by Formula 2. When the material for an organic EL device according to an embodiment of the present disclosure is used in a hole transport layer adjacent to an emission layer, the charge transport properties may be improved, and the lifetime of the organic EL device may be increased.

Abstract: A material for an organic electroluminescent device having high emission efficiency is represented by following Formula 1: The material represented by Formula 1 may be included in at least one layer selected from a plurality of layers between an anode and an emission layer of an organic EL device.

Abstract: An organic electroluminescent (EL) device having improved emission efficiency and emission lifetime. An embodiment of the organic EL device of the present disclosure includes a plurality of hole transport layers between an anode and an emission layer. The plurality of the hole transport layers may include an anode-side hole transport layer, a middle hole transport layer, and an emission layer-side hole transport layer.

Abstract: A material for an organic electroluminescent device having high emission efficiency, represented by Formula 1, and an organic electroluminescent device including the same: The organic electroluminescent device may include a first electrode, a second electrode facing the first electrode, and one or more organic layers between the first electrode and second electrode. When the material for an organic electroluminescent device is included in at least one of the organic layers, the organic electroluminescent device may achieve high emission efficiency and long lifespan.

Abstract: Embodiments of the present disclosure are directed toward a material for an organic electroluminescent device (represented by Formula 1) and a device using the same: Ar1 and Ar2 may be a substituted or unsubstituted aryl group having 6 to 30 carbon atoms or a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms, Ar3 may be a substituted or unsubstituted aryl or heteroaryl group as above or an alkyl group having 1 to 6 carbon atoms, HAr may be a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms, L may be selected from a direct linkage, a substituted or unsubstituted arylene group having 6 to 30 carbon atoms, and a substituted or unsubstituted heteroarylene group having 5 to 30 carbon atoms, and HAr and Ar3 may be different from each other.

Abstract: Embodiments of the present disclosure are directed toward a material for an organic electroluminescent device realizing a low driving voltage and high emission efficiency, and an organic electroluminescent device using the same. The material for an organic electroluminescent device is represented by Formula 1: In Formula 1, X is selected from O, N or S, Y and Z are each independently selected from CAr5Ar6 or SiAr7Ar8, Ar1 to Ar8 are each independently selected from a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms for forming a ring, a silyl group, a halogen atom, deuterium, and hydrogen, and l to n are each independently an integer selected from 0 to 4.

Abstract: A novel amine derivative is represented by the following Formula 1: An organic electroluminescent (EL) device includes: an anode, a cathode, an emission layer between the anode and the cathode, and a plurality of layers between the anode and the emission layer, wherein a material for an organic EL device including the amine derivative is in at least one layer selected from the plurality of layers between the anode and the emission layer. In a blue to bluish green region of an organic EL device, the driving voltage of the organic EL device may be decreased, and the emission efficiency thereof may be significantly improved.

Abstract: A material for an organic electroluminescent device having high emission efficiency and long life and an organic electroluminescent device including the same. The material for an organic electroluminescent device is represented by the following Formula 1.

Abstract: An organic electroluminescent device includes: a substrate; a first electrode on the substrate; a second electrode on the first electrode; and a plurality of lamination layers between the first and second electrodes; wherein at least one of the plurality of lamination layers includes a carbazole compound represented by Formula 1: The carbazole compound may improve the emission efficiency of the organic electroluminescent device.

Abstract: An amine compound is represented by the following Formula 1: The amine compound may be included in at least one of the layers positioned between an anode and an emission layer of an organic electroluminescent device. The amine compound may improve the emission lifetime of the organic electroluminescent device including the amine compound.

Abstract: A material for an organic electroluminescent device is represented by the following Formula 1: where Ar1 to Ar4 may be each independently selected from a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring and a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms for forming a ring, and X may be selected from a substituted or unsubstituted heteroaryl group represented by the following Formula 2: where Y may be selected from O, S and NR, and R may be selected from a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring and a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms for forming a ring.

Abstract: A material for an organic electroluminescent device having high emission efficiency and an organic electroluminescent device utilizing the same. The material is represented by Formula 1. In Formula 1, X1 to X7 are each independently hydrogen, deuterium, a halogen atom, an alkyl group having 1 to 15 carbon atoms, or a substituted or unsubstituted aryl group; Ar1 and Ar2 are each independently a substituted or unsubstituted aryl group having 6 to 12 carbon atoms for forming a ring; L is a substituted or unsubstituted arylene group; n is an integer from 1 to 3; at least one L is a phenylene group represented by Formula 2. In Formula 2, Y1 to Y6 are each independently a direct linkage, hydrogen, deuterium, halogen, an alkyl group having 1 to 15 carbon atoms, an alkenyl group having 2 to 15 carbon atoms, or a substituted or unsubstituted aryl group.

Abstract: An organic electroluminescent device of which emission life may be improved. The organic electroluminescent device includes an anode, an emission layer, and an anode-side hole transport layer provided between the anode and the emission layer and including an anode-side hole transport material. An electron accepting material is doped in the anode-side hole transport layer. An intermediate hole transport material layer is provided between the anode-side hole transport layer and the emission layer and includes an intermediate hole transport material, and an emission layer-side hole transport layer is provided between the intermediate hole transport material layer and the emission layer and adjacent to the emission layer. The emission layer-side hole transport layer includes an emission layer-side hole transport material represented by the following Formula 1.

Abstract: A material for an organic electroluminescent device having high emission efficiency and an organic electroluminescent device including the same. An amine derivative of an embodiment of the inventive concept is represented by Formula (1).

Abstract: Provided are a material for an organic electroluminescent device and an organic electroluminescent device including the same. The material for the organic electroluminescent device is represented by the following Formula (1). The material and the organic electroluminescent device including the material may have long life. The material may include an azadibenzoheterole part at the meta (m) position of a phenylene group combined via a direct linkage or a connecting group L1 with the nitrogen atom N of an amine.

Abstract: An organic electroluminescent device includes an anode, a cathode, an emission layer between the anode and the cathode, and a plurality of lamination layers between the emission layer and the anode, wherein at least one of the plurality of lamination layers includes a material for an organic electroluminescent device represented by the following Formula 1. The organic electroluminescent device using the material may have improved lifetime.

Abstract: A material for an organic electroluminescent device having high emission efficiency and long life, and an organic electroluminescent device including the same. The material for an organic electroluminescent device may be represented by Formula (1).