Abstract: According to the present invention, provided is a PDLC film, which includes a PDLC layer excellent in thickness uniformity and is suppressed from causing liquid crystal leakage from the PDLC layer. A method of producing a polymer dispersed liquid crystal film of the present invention includes: applying, to a first transparent conductive film, an emulsion including a solvent, and polymer particles and liquid crystal particles dispersed in the solvent to form an applied layer; drying the applied layer to form a polymer dispersed liquid crystal layer containing a polymer matrix and the liquid crystal particles dispersed in the polymer matrix; and laminating a second transparent conductive film on the polymer dispersed liquid crystal layer, wherein the polymer particles include first polymer particles and second polymer particles, and wherein an average particle diameter of the second polymer particles is larger than an average particle diameter of the first polymer particles.

Abstract: The present invention provides a light control film, including: a first transparent substrate; a first transparent electrode layer; a light control layer which contains a liquid crystal compound, and which enables switching between a light transmitting state and a light scattering state in accordance with a voltage to be applied; a second transparent electrode layer; and a second transparent substrate in the stated order, wherein the first transparent substrate has a front retardation of 50 nm or less, wherein the second transparent substrate has a front retardation of 50 nm or less, and wherein the light control film has a total light transmittance of from 85% to 99% in the light transmitting state.

Abstract: The liquid crystal display apparatus includes: a liquid crystal panel; a light control layer; and a surface light source device, wherein the liquid crystal panel includes: a liquid crystal cell; a viewer-side polarizing plate; and a back surface-side polarizing plate, wherein the light control layer includes a first transparent substrate; a first transparent electrode layer; a composite layer of a polymer matrix and a liquid crystal compound; a second transparent electrode layer; and a second transparent substrate, wherein the first transparent substrate and the second transparent substrate each independently have a thickness of 70 ?m or less, wherein the first transparent substrate and the second transparent substrate each independently have a front retardation at a wavelength of 590 nm of 100 nm or less, wherein the surface light source device is configured to emit light which has directivity in an approximately normal direction of the light emitting surface.

Abstract: The liquid crystal display apparatus of the present invention includes: a liquid crystal panel, a viewer-side polarizing plate arranged on the viewer side of the liquid crystal cell, and a back surface-side polarizing plate, a light control layer and a surface light source device including a light source unit and a light guide plate configured to cause light from the light source unit to enter from a side surface, and to emit the light from a viewer-side surface opposed to the light control layer, wherein the surface light source device is configured to emit light which has directivity in an approximately normal direction of the viewer-side surface, and which contains a linearly polarized light component that vibrates in a plane approximately parallel to a light guide direction of light of the light guide plate at a high ratio, and wherein the linearly polarized light component has a vibration direction.

Abstract: The liquid crystal display apparatus includes: a liquid crystal panel; a light control layer; and a surface light source device, wherein the liquid crystal panel includes: a liquid crystal cell; a viewer-side polarizing plate; and a back surface-side polarizing plate, wherein the light control layer includes a first transparent substrate; a first transparent electrode layer; a composite layer of a polymer matrix and a liquid crystal compound; a second transparent electrode layer; and a second transparent substrate, wherein the first transparent substrate and the second transparent substrate each independently have a thickness of 70 ?m or less, wherein the first transparent substrate and the second transparent substrate each independently have a front retardation at a wavelength of 590 nm of 100 nm or less, wherein the surface light source device is configured to emit light which has directivity in an approximately normal direction of the light emitting surface.

Abstract: The present invention provides a light control film, including: a first transparent substrate; a first transparent electrode layer; a light control layer which contains a liquid crystal compound, and which enables switching between a light transmitting state and a light scattering state in accordance with a voltage to be applied; a second transparent electrode layer; and a second transparent substrate in the stated order, wherein the first transparent substrate has a front retardation of 50 nm or less, wherein the second transparent substrate has a front retardation of 50 nm or less, and wherein the light control film has a total light transmittance of from 85% to 99% in the light transmitting state.

Abstract: The present invention provides a flexible light-emitting device which is a flexible device with which the light leakage is less liable to occur even if it is deformed. In order to achieve the above object, the flexible light-emitting device of the present invention includes a light-emitting layer, a low refractive index layer, and a high refractive index layer, wherein the light-emitting layer, the low refractive index layer, and the high refractive index layer are stacked in this order, the low refractive index layer has a refractive index lower than that of the light-emitting layer and has a haze of less than 5%, and the high refractive index layer has a refractive index higher than that of the low refractive index layer.

Abstract: The present invention provides a flexible light-emitting device which is a flexible device with which the light leakage is less liable to occur even if it is deformed. In order to achieve the above object, the flexible light-emitting device of the present invention includes a light-emitting layer, a low refractive index layer, and a high refractive index layer, wherein the light-emitting layer, the low refractive index layer, and the high refractive index layer are stacked in this order, the low refractive index layer has a refractive index lower than that of the light-emitting layer and has a haze of less than 5%, and the high refractive index layer has a refractive index higher than that of the low refractive index layer.

Abstract: In order to provide an organic electroluminescent light-emitting device with less uneven brightness, which can be manufactured at low cost, a plurality of ribbon-like organic electroluminescent elements are connected to wires, which are connected to electrode terminals for energization at specific locations in a terminal region and mounted on a base material which has a substantially plate-like shape.

Abstract: An organic EL device whose organic EL elements hardly deteriorate and device manufacturing method are provided. The organic EL device 1 includes: a light emission panel 2 and a sealing member 3, wherein the light emission panel 2 comprises a base material 21, a plurality of organic electroluminescence elements 5 each including an organic layer 53 and electrode terminals 521, 541, and a connection portion 6, wherein the organic electroluminescence elements 5 are disposed on the base material 21 in parallel in a tile pattern, and the connection portion 6 is a portion to which the electrode terminals 521, 541 of each organic electroluminescence element 5 are electrically connected; and the sealing member 3 seals a light emission region 22 formed by a plurality of organic layers 53 and an inter-layer region 23 sandwiched by two neighboring organic layers 53 in the light emission panel 2.

Abstract: A method for manufacturing a top emission organic electroluminescence element which can be stably driven for a long time is provided. The method for manufacturing a top emission organic electroluminescence element includes: a step of forming an organic electroluminescence layer including an anode, an organic layer having two or more layers, and a cathode in this order, a glass-transition temperature Tg of formation materials of the organic layer being 120° C. or more; and a step of subjecting the organic electroluminescence layer to annealing treatment after the organic electroluminescence layer is formed, the annealing treatment being carried out in a temperature range of 75° C. or more and (Tg?20)° C. or less, wherein the Tg denoted in the temperature range where the annealing treatment is carried out indicates a lowest glass-transition temperature among the glass transition temperatures of the formation materials of the organic layer.

Abstract: In order to provide an organic electroluminescent light-emitting device with less uneven brightness, which can be manufactured at low cost, a plurality of ribbon-like organic electroluminescent elements are connected to wires, which are connected to electrode terminals for energization at specific locations in a terminal region and mounted on a base material which has a substantially plate-like shape.

Abstract: There is provided an organic light emitting diode, wherein in a transparent substrate used therein, the length of a side (upper side) on a transparent electrode layer side is shorter than the length of a side (lower side) on an emission side in a cross section parallel to a short side. Ends of the side (upper side) on the transparent electrode layer side and ends of the side (lower side) on the emission side are connected by straight lines or curved lines. Angles (?,?) formed by side surfaces of the transparent substrate and the side (lower side) on the emission side are larger than 0° and smaller than 90°.