Abstract: Provided are a compound including nitrogen, represented by Formula 1, and an organic electroluminescence device including the same. In Formula 1, A1 to A10 are each independently CR3 or N. The organic electroluminescence device may include a first electrode, a second electrode which is opposite to the first electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein the plurality of organic layers include an emission layer, and at least one organic layer among the organic layers includes the compound including nitrogen.

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 heterocyclic compound represented by the following Formula 1 and an organic electroluminescence device including the same are provided.

Abstract: A phosphine-based compound and an organic electroluminescence device including the same, the phosphine-based compound being represented by the following Formula 1:

Abstract: An organic electroluminescent device having improved emission efficiency includes an anode, an emission layer, an anode-side hole transport layer between the anode and the emission layer and mainly including an electron accepting material, a middle hole transport material layer between the anode-side hole transport layer and the emission layer and including a middle hole transport material, and an emission layer-side hole transport layer between the middle hole transport material layer and the emission layer, adjacent to the emission layer and including an emission layer-side hole transport material represented by the following Formula 1.

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: Provided are a monoamine derivative represented by the following Formula 1, and an organic electroluminescent device including the same. When the monoamine derivative represented by Formula 1 is used as a hole transport or hole injection material in the device, the operating voltage may be lowered and the emission efficiency may be improved.

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: The semiconductor device includes an oxide semiconductor; a source electrode and a drain electrode in contact with the oxide semiconductor; a gate insulating film over the oxide semiconductor, the source electrode, and the drain electrode; and a gate electrode overlapping the oxide semiconductor, part of the source electrode, and part of the drain electrode with the gate insulating film positioned therebetween. The source electrode and the drain electrode each include a Cu—X alloy film (X is Mn, Ni, Cr, Fe, Co, Mo, Ta, or Ti), and the thickness of a region of the oxide semiconductor over which neither the source electrode nor the drain electrode is provided is smaller than the thicknesses of regions of the oxide semiconductor over which the source electrode and the drain electrode are provided.

Abstract: An amine derivative represented by the following General Formula (1) is provided. In the above General Formula (1), Ar1, Ar2 and Ar3 are independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group, at least one of Ar1, Ar2 and Ar3 is substituted with a substituted or unsubstituted silyl group, and L is a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group.

Abstract: An amine derivative represented by the following General Formula (1) is provided. In the above General Formula (1), Ar1, Ar2 and Ar3 are independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group, at least one of Ar1, Ar2 and Ar3 is substituted with a substituted or unsubstituted silyl group, and L is a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group.

Abstract: A cylinder device capable of smoothing a flow of a working fluid without increasing a size of an opening is provided. A bottom member includes a reservoir chamber side opening which can communicate with a reservoir chamber and the inner portion of an inner tube, a suction passage in which a first valve allowing the working fluid to flow from the reservoir chamber side opening into the inner tube is provided, and a discharge passage in which a second valve allowing the working fluid to flow from the inner portion of the inner tube to the reservoir chamber side opening is provided. A guide member which guides the flow of the working fluid from the reservoir chamber side opening to the suction passage and the flow of the working fluid from the discharge passage to the reservoir chamber side opening is provided between the bottom member and the closing portion.

Abstract: Provided are a material for an organic electroluminescence device and an organic electroluminescence device including the same. The material for an organic electroluminescence device is a monoamine compound represented by the following General Formula (1). where X1 is one selected from O, S, R9—C—R10, or N—R11, R1 to R11 are each independently alkyl having 10 or less carbon atoms, aryl having 6 to 30 carbon atoms for forming a ring, alkyloxy, alkylthio, trialkylsilyl, aryloxy, arylthio, triarylsilyl, alkyldiarylsilyl, dialkylarylsilyl, or heteroaryl having 2 to 30 carbon atoms for forming a ring, n is an integer of 0 to 4, m is an integer of 0 to 3, and o is an integer of 0 to 2.

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: The present invention focuses on a structure in which an auxiliary wiring for increasing the conductivity of an upper electrode is provided on the substrate side. The conductive auxiliary wiring of a light-emitting device is provided over a substrate, and an upper portion of the auxiliary wiring protrudes in a direction parallel to the substrate. Further, an EL layer formed in a region including a lower electrode layer and the auxiliary wiring is physically divided by the auxiliary wiring. An upper electrode layer formed in a manner similar to that of the lower electrode layer may be electrically connected to at least part of a side surface of the auxiliary wiring. Such an auxiliary wiring may be used in a lighting device and a display device.

Abstract: An organic electroluminescent device having improved emission efficiency includes an anode, an emission layer, an anode-side hole transport layer between the anode and the emission layer and mainly including an electron accepting material, a middle hole transport material layer between the anode-side hole transport layer and the emission layer and including a middle hole transport material, and an emission layer-side hole transport layer between the middle hole transport material layer and the emission layer, adjacent to the emission layer and including an emission layer-side hole transport material represented by the following Formula 1.

Abstract: Provided are a material for an organic electroluminescent device having a high emission efficiency and an organic electroluminescent device including the same. The material for an organic electroluminescent device according to the present disclosure is represented by Formula 1: in which dibenzoheterole groups are coupled to a phenyl group of a triarylamine at the ortho positions relative to the nitrogen atom. The polarity of the molecule may be increased due to the heteroatoms of the dibenzoheterole groups, and the energy gap (e.g., HOMO-LUMO gap) of the molecule may be increased due to the large steric distortion of the molecule around the amine group. Accordingly, the emission efficiency of an organic EL device may be improved in the blue emission region.

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: 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: Provided are a monoamine derivative represented by the following Formula 1, and an organic electroluminescent device including the same. When the monoamine derivative represented by Formula 1 is used as a hole transport or hole injection material in the device, the operating voltage may be lowered and the emission efficiency may be improved.