Abstract: Provided are a copolymer having plural repeating units each having a specific structure, and having a weight-average molecular weight of from 100,000 to 3,000,000; a material for organic electronic devices and a material for organic electroluminescent devices containing the copolymer; a solution containing the copolymer and a solvent; and an organic electroluminescent device using the material for organic electroluminescent devices. The copolymer has not only charge transporting properties but also solubility and is suitable for forming a film according to a coating method. The present invention provides the copolymer, and a material for organic electronic devices and a material for organic electroluminescent devices containing the copolymer, an organic electroluminescent device, and a solution containing the copolymer.

Abstract: Provided are a polymer compound, which comprises a copolymer containing at least a unit B, and a unit A and/or a unit C referring to repeating units A, B and C, and which has a weight-average molecular weight of from 50,000 to 1,500,000; a material for electronic devices and a material for organic electroluminescent devices comprising the compound; an organic electroluminescent device having an anode, a cathode and an organic thin film layer, wherein at least one organic thin film layer contains the polymer compound; a coating liquid containing the polymer compound and a solvent; and a method for producing an organic electroluminescent device using the coating liquid. Also provided is a polymer compound suitable to a coating method; a material for electronic devices and a material for organic electroluminescent devices comprising the compound; and an organic EL device, a coating liquid and a method for producing an organic EL device using the compound.

Abstract: A novel aromatic heterocyclic derivative has a specific structure in its molecule which combines a hole transporting ability and an electron transporting ability. The aromatic heterocyclic derivative is used in a material for an organic electroluminescence device, a solution of a material for an organic electroluminescence device, and an organic electroluminescence device.

Abstract: A polymer including a structural unit represented by the following formula (A). In the formula (A), P is independently a group represented by the following formula (P), a is an integer of 2 to 5, and b is an integer of 0 to 5. In the formula (P), A is independently a nitrogen atom or CR; X is a single bond, O, S, C(R)2 or NR. R is independently a hydrogen atom, a substituted or unsubstituted alkyl group including 1 to 20 carbon atoms or the like, or a single bond used for bonding to another P or L, provided that at least one R contained in (P)a is represented by any one of the following formulas (3) to (7).

Abstract: A polymer including structural units represented by the following formulas (A) and (B). In the formula (A), P is a group derived from a compound represented by the formula (P). L1 is a linkage group. In the formula (B), Q is a group derived from a compound represented by the formula (Q). L2 is a linkage group. In the formula (B), at least one of “c”Qs and “d”L2s includes a cross-linkable group.

Abstract: One embodiment of the present invention is a method for manufacturing an organic electroluminescence device, including forming an organic light emitting layer by a relief printing method, the method including transferring an organic light emitting material ink from an ink supplier to a printing plate, and subsequently transferring the organic light emitting material ink from the printing plate to a substrate, wherein a solvent of the organic light emitting material ink comprises a solvent having a vapor pressure over 500 Pa at 20-25 degrees Celsius, and wherein the time between the reception of the ink by the printing plate and the transfer of the ink to the substrate is equal to or less than 5 seconds.

Abstract: An organic electroluminescence display includes a substrate, a first electrode layer formed on the substrate, a first light emitting layer formed on the first electrode layer and emitting light with a first wavelength, a second light emitting layer formed to overlap at least a part thereof with the first light emitting layer and emitting light with a second wavelength longer than the first wavelength, and a second electrode layer formed on the first or second light emitting layer.

Abstract: A method for manufacturing an organic electroluminescence display includes forming a first electrode, forming an organic light emitting medium layer including an organic light emitting layer on the first electrode, the respective organic light emitting medium layers including respective organic light emitting layers having different life-times in light emitting, and forming a second electrode on the organic light emitting medium layer, wherein the organic light emitting layer having a longer life-time is formed earlier.

Abstract: An embodiment of the present invention is a relief printing plate for forming a high-definition pattern by a printing method, having a convex part comprising a resin layer, a base material supporting the convex part and a light reflection controlling layer, the light wave length being in range of 400 nm-800 nm, and the layer being between the convex part and the base material.

Abstract: A method for manufacturing an organic electroluminescence display includes forming a first electrode, forming an organic light emitting medium layer including an organic light emitting layer on the first electrode, the respective organic light emitting medium layers including respective organic light emitting layers having different life-times in light emitting, and forming a second electrode on the organic light emitting medium layer, wherein the organic light emitting layer having a longer life-time is formed earlier.

Abstract: A relief printing plate has a convex part, wherein a top surface of the convex part, which touches a substrate, comprises a resin layer having an affinity for an ink liquid including an organic light emitting material and the convex part or a convex part forming layer including the convex part, which supports the resin layer, comprises an ink repellent layer which has non-affinity for the ink.

Abstract: A method of manufacturing an organic electroluminescent device is disclosed. The method includes forming a first electrode or a substrate; forming a partition wall adjacent to the first electrode; and forming an organic luminous layer on the first electrode by relief printing method.

Abstract: One embodiment of the present invention is a method for manufacturing an organic electroluminescence device, including forming an organic light emitting layer by a relief printing method, the method including transferring an organic light emitting material ink from an ink supplier to a printing plate, and subsequently transferring the organic light emitting material ink from the printing plate to a substrate, wherein a solvent of the organic light emitting material ink comprises a solvent having a vapor pressure over 500 Pa at 20-25 degrees Celsius, and wherein the time between the reception of the ink by the printing plate and the transfer of the ink to the substrate is equal to or less than 5 seconds.

Abstract: As finer patterns of relief printing plates are produced, the spacing between the convex portions of the relief printing plates decreases, and a sufficient relief depth, which is the depth of a concave portions between the convex portions, cannot be obtained. In one embodiment of the present invention, there is provided a relief printing plate for use when a coating liquid is supplied to convex portions of the relief printing plate, the coating liquid located on the convex portions is printed, and a pattern composed of the coating liquid is formed on the print surface, this relief printing plate comprising a metal support having convex portions and a resin layer disposed on the convex portions of the support.

Abstract: An embodiment of the present invention is a relief printing plate for forming a high-definition pattern by a printing method, having a convex part comprising a resin layer, a base material supporting the convex part and a light reflection controlling layer, the light wave length being in range of 400 nm-800 nm, and the layer being between the convex part and the base material.

Abstract: It is intended to provide an organic EL display panel production method which enables formation of light emitting layers by a relief printing process in an organic EL display having RGB arrangement in a delta alignment or a mosaic alignment. A relief plate (resin relief plate) 50 in this invention has projections 202 in the form of dots corresponding to arrangement of pixels P for one of the colors in accordance with the pixels P of which R, G, and B are arranged in the delta alignment. A resin relief plate 16 has projections 202 in the form of dots corresponding to the pixels P for any one of the colors among the pixels P corresponding to R, G, and B, and an area S2 of an apical surface of each of the projections 202 is 70% to 90% of an area S1 of a bottom surface of an aperture P1 of each of the pixels P.

Abstract: An organic luminescent layer of an organic electroluminescence element can be formed by relief printing using a plastic plate comprised a metal base material. A manufacturing method of an organic electroluminescent element including a substrate, a first electrode, an organic luminescent layer and a second electrode is provided, the method including forming an organic luminescent layer in upside of the first electrode by relief printing with the use of an organic luminescence ink, wherein the ink comprises an organic luminescent material dissolved in an organic solvent, and wherein a plastic plate having projection patterns comprising a resin on a metal base material is used in the relief printing.

Abstract: An organic electroluminescence device manufacturing method is disclosed wherein the device comprises a substrate, a first and second electrode, and an organic luminous layer. The method comprising: hardening of a water development type photosensitive resin to form a plastic plate; and printing organic luminescent ink on a substrate by relief printing method with the use of the plastic plate, wherein the organic luminescent ink is an ink capable of scattering organic luminescent material in an organic solvent.

Abstract: An organic luminescence ink is disclosed. The ink includes a solvent and organic luminescent material dissolved in the solvent. The solvent comprises solvent A having a boiling point more than 70 degrees Celsius and under 180 degrees Celsius and solvent B having a boiling point more than 180 degrees Celsius and less than or equal to 270 degrees Celsius. An amount of solvent B in sum of an amount of solvent A and solvent B is more then 5% by weight and less than or equal to 30% by weight.

Abstract: In functional inks for relief printing concerning the present invention, contents of compositions of functional layers can be 1.0-2.5 wt %. In addition, viscosity of functional ink for relief printing can be 15-50 mPa·s. Therefore, each functional layer can be formed with uniformity and reasonable thickness.