Abstract: An organic electroluminescence display device includes, from a visible side, at least: a circular polarization plate; and an organic electroluminescence display element having a pair of electrodes and an organic light emitting layer sandwiched therebetween. A high refractive index layer has a refractive index of greater than 1.7 and less than 2.1 is disposed between the plate and one of the electrodes on the visible side, the plate has a polarizer, a ?/2 plate, and a ?/4 plate in this order from the visible side, a retardation RthA (550) of the ?/2 plate in a thickness direction at a wavelength of 550 nm is within a range of greater than ?120 nm and less than ?40 nm, and a retardation RthB (550) of the ?/4 plate in a thickness direction at a wavelength of 550 nm is within a range of greater than ?60 nm and less than 20 nm.

Abstract: An organic EL display device is provided in which a change in tint is reduced in a bent portion. This organic EL display device is an organic electroluminescent display device including, from a viewing side, a circularly polarizing plate, a first adhesion layer, and a bendable organic electroluminescent display panel, in which the circularly polarizing plate includes, from the viewing side, a linear polarizer, a second adhesion layer, and a phase difference layer functioning as a ?/4 plate, a complex modulus of elasticity of the first adhesion layer is 2.50×105 Pa or less, the first adhesion layer is thicker than the second adhesion layer, and an absorption axis of the linear polarizer is positioned at an angle of 0°±30° or 90°±30° with respect to an extension direction of a ridge line formed in a case where the organic electroluminescent display device is bent.

Abstract: An organic electroluminescence display device includes, from a visible side, at least: a circular polarization plate; and an organic electroluminescence display element having a pair of electrodes and an organic light emitting layer sandwiched therebetween. A high refractive index layer has a refractive index of greater than 1.7 and less than 2.1 is disposed between the plate and one of the electrodes on the visible side, the plate has a polarizer, a ?/2 plate, and a ?/4 plate in this order from the visible side, a retardation RthA (550) of the ?/2 plate in a thickness direction at a wavelength of 550 nm is within a range of greater than ?120 nm and less than ?40 nm, and a retardation RthB (550) of the ?/4 plate in a thickness direction at a wavelength of 550 nm is within a range of greater than ?60 nm and less than 20 nm.

Abstract: An organic electroluminescence display device includes, from a visible side, at least: a circular polarization plate; and an organic electroluminescence display element having a pair of electrodes and an organic light emitting layer sandwiched therebetween. A high refractive index layer has a refractive index of greater than 1.7 and less than 2.1 is disposed between the plate and one of the electrodes on the visible side, the plate has a polarizer, a ?/2 plate, and a ?/4 plate in this order from the visible side, a retardation RthA (550) of the ?/2 plate in a thickness direction at a wavelength of 550 nm is within a range of greater than ?120 nm and less than ?40 nm, and a retardation RthB (550) of the ?/4 plate in a thickness direction at a wavelength of 550 nm is within a range of greater than ?60 nm and less than 20 nm.

Abstract: An organic electroluminescence display device includes, from a visible side, at least: a circular polarization plate; and an organic electroluminescence display element having a pair of electrodes and an organic light emitting layer sandwiched therebetween. A high refractive index layer has a refractive index of greater than 1.7 and less than 2.1 is disposed between the plate and one of the electrodes on the visible side, the plate has a polarizer, a ?/2 plate, and a ?/4 plate in this order from the visible side, a retardation RthA (550) of the ?/2 plate in a thickness direction at a wavelength of 550 nm is within a range of greater than ?120 nm and less than ?40 nm, and a retardation RthB (550) of the ?/4 plate in a thickness direction at a wavelength of 550 nm is within a range of greater than ?60 nm and less than 20 nm.

Abstract: The present invention provides an optical laminate which is suppressed in film thickness unevenness of an optically anisotropic layer and is free from point defects, a method of producing the same, and a polarizing plate and an organic EL display device using the optical laminate. The method of producing an optical laminate having an optically anisotropic layer A and an optically anisotropic layer B, includes where the layer A and the layer B are provided in direct contact with each other. The method further includes where both a composition a for forming the layer A and a composition b for forming the layer B contain a fluorine compound, and when the layer A is formed using composition a and layer B is formed using composition b, layer A and layer B are formed in this order under the condition that composition a and composition b satisfy predetermined surface tension relationships.

Abstract: The present invention provides an optical laminate which is suppressed in film thickness unevenness of an optically anisotropic layer and is free from point defects, a method of producing the same, and a polarizing plate and an organic EL display device using the optical laminate. The method of producing an optical laminate having an optically anisotropic layer A and an optically anisotropic layer B, includes where the layer A and the layer B are provided in direct contact with each other. The method further includes where both a composition a for forming the layer A and a composition b for forming the layer B contain a fluorine compound, and when the layer A is formed using composition a and layer B is formed using composition b, layer A and layer B are formed in this order under the condition that composition a and composition b satisfy predetermined surface tension relationships.

Abstract: An organic EL display device includes at least a polarizer layer, a ?/2 plate, a ?/4 plate and an organic EL panel in this order, and an in-plane retardation Re2(550) of the ?/4 plate at 550 nm satisfies 115?Re2(550)?155, and an in-plane retardation Re1(550) of the ?/2 plate at 550 nm satisfies Re1(550)=2×Re2(550)±50 nm.

Abstract: There are provided a circularly polarizing plate which includes an optically anisotropic layer formed by using a discotic liquid crystal compound and an optically anisotropic layer formed by using a rod-like liquid crystal compound, inhibits an alignment defect of the rod-like liquid crystal compound, and has excellent visibility. The circularly polarizing plate has an optical laminate and a polarizing film.

Abstract: An organic EL display device includes at least a polarizer layer, a ?/2 plate, a ?/4 plate and an organic EL panel in this order, and an in-plane retardation Re2(550) of the ?/4 plate at 550 nm satisfies 115?Re2(550)?155, and an in-plane retardation Re1(550) of the ?/2 plate at 550 nm satisfies Re1(550)=2×Re2(550)±50 nm.