Abstract: Provided is a viewing angle control polarizing plate that has asymmetric transmission characteristics, does not cause moire even in a case of being used in combination with a high-definition image display device, and is capable of easily following a curved surface and a viewing angle control system with high productivity. The viewing angle control system includes at least a first polarizer and an optically anisotropic layer, in which an absorption axis of the first polarizer forms an angle of 45° or greater with respect to an in-plane direction, and a main axis of a refractive index of the optically anisotropic layer is tilted in the in-plane direction.

Abstract: A quantum dot-containing composition includes a quantum dot, a ligand having coordinating groups, which coordinates to the surface of the quantum dots, and the ligand is represented by Formula I. In Formula I, A is an organic group including one or more coordinating groups selected from an amino group, a carboxy group, a mercapto group, a phosphine group, and a phosphine oxide group, Z is an (n+m+l)-valent organic linking group, R is a group including an alkyl group, an alkenyl group, or an alkynyl group each of which may have a substituent, Y is a group having a polymer chain which has a degree of polymerization of 3 or greater and which includes a polyacrylate skeleton or the like. n and m are each independently 1 or greater, l is 0 or greater, and n+m+l is integer 3 or greater. At least two coordinating groups are included in a molecule.

Abstract: Provided is a method for producing a light absorption anisotropic film having a three-dimensional shape and having excellent alignment, which is capable of manufacturing a light absorption anisotropic film having a high degree of polarization even where a three-dimensional shape is provided by heating molding. The method includes a step of producing an intermediate laminate having an optical coating film formed using a liquid crystal composition containing a liquid crystalline compound and a dichroic substance, and an alignment film; a step of heating the intermediate laminate produced by the film forming step to impart a three-dimensional shape; an aligning step of aligning a liquid crystalline component included in the optical coating film in the intermediate laminate imparted with the three-dimensional shape by the heating molding step to produce a light absorption anisotropic film; and a step of curing the light absorption anisotropic film produced by the aligning step.

Abstract: An object of the present invention is to provide a laminate including a light absorption anisotropic layer, in which a decrease in a degree of polarization is suppressed even in a case where the laminate is simultaneously stretched in a plurality of directions, and an optical device and a display device, each using the laminate. The laminate of an embodiment of the present invention is a laminate having at least a resin substrate and a light absorption anisotropic layer, in which a tan ? peak temperature of the resin substrate is 170° C. or lower, the light absorption anisotropic layer includes a liquid crystalline compound and a dichroic substance, and an alignment degree of the dichroic substance is 0.95 or more.

Abstract: Provided is an image display apparatus that has a small overall apparatus volume and can be miniaturized. The image display apparatus includes an image display element; a light guide plate on which light emitted by the image display element is incident and which internally and totally reflects the light satisfying a total reflection condition to guide the light; and a retroreflective element that is provided on a surface of the light guide plate and retroreflects the light guided in the light guide plate.

Abstract: An optical apparatus includes a beam splitter that transmits a part of an incidence ray and reflects another part of the incidence ray, a mirror member that includes a mirror surface arranged at a position at which light transmitted through the beam splitter is incident, and a retroreflective member that is arranged at a position at which light specularly reflected on the mirror surface, to be incident on the beam splitter and specularly reflected by the beam splitter is incident.

Abstract: An optical film includes a cholesteric liquid crystal layer formed in a stripe-shaped pattern in which an optically anisotropic region having optical anisotropy and an optically isotropic region having optical isotropy are alternately disposed, a helical axis of a cholesteric liquid crystal in the optically anisotropic region is oriented in one axial direction tin a plane of the optical film, and the helical axis is oriented in a normal direction t of a boundary surface between the optically anisotropic region and the optically isotropic region.

Abstract: Display performance can be improved by reducing light leak in an oblique direction at the time of black display while increasing front brightness.

Abstract: An optical laminate includes a cholesteric liquid crystal layer and a lenticular lens which is laminated on the cholesteric liquid crystal layer, the cholesteric liquid crystal layer has a plurality of regions which are arranged in a pattern in an arrangement direction of lenses of the lenticular lens and are different from each other in terms of the reflection center wavelength for front incident light, and among the plurality of regions, a region having the shortest reflection center wavelength is disposed at a focus position of the lenticular lens for the front incident light, and among the plurality of regions, a region having a longer reflection center wavelength is disposed further away from the focus position.

Abstract: An image display system includes a first image display unit that has a first image display surface for displaying a first image and emits first emission light as first polarized light, a beam splitter that has a transflective surface for transmitting a part of incident light and reflecting another part of the incident light, the transflective surface being arranged at a position where the first emission light emitted from the first image display unit is incident, and the beam splitter changing the polarized light of the first emission light and reflecting the first emission light, and an absorption polarizer that is arranged at a position where reflected light reflected from the transflective surface of the beam splitter out of the first emission light is incident, to absorb the first polarized light and transmit second polarized light different from the first polarized light.

Abstract: The present invention provides a liquid crystal display device which suppresses a color change of light leak depending on a direction in the visual recognition from an oblique direction during black display, and has high display quality. The liquid crystal display device includes, in order, at least: a first polarizer; an optically anisotropic layer a liquid crystal cell; and a second polarizer, the liquid crystal cell has pixels with a screen resolution of 250 ppi or more, the pixels each have at least blue, green, and red subpixels, the subpixel has a chevron structure in which an angle formed between at least one side and an absorption axis of the first polarizer or an absorption axis of the second polarizer is larger than 0° and not larger than 5°, and a depolarization degree of the liquid crystal cell in a visible light region satisfies a predetermined requirement.

Abstract: The backlight unit includes: a light guide that includes an incidence surface and an emission surface facing each other; and a light source portion including a plurality of point light sources that are two-dimensionally arranged to face the incidence surface of the light guide, in which light emitted from the light source portion is incident into the incidence surface of the light guide and emitted from the emission surface, the backlight unit is driven by local dimming in which at least two point light sources among the plurality of point light sources are used as a minimum point lighting unit, the light guide includes a plurality of light advancing direction conversion portions and a plurality of light extraction portions, each of the light advancing direction conversion portions is provided at each of positions on the incidence surface facing the plurality of point light sources and changes an advancing direction of each of light components to a direction in which the light component is guided in the light

Abstract: The present invention provides a liquid crystal display device which suppresses a color change of light leak depending on a direction in the visual recognition from an oblique direction during black display, and has high display quality. The liquid crystal display device includes, in order, at least: a first polarizer; an optically anisotropic layer a liquid crystal cell; and a second polarizer, the liquid crystal cell has pixels with a screen resolution of 250 ppi or more, the pixels each have at least blue, green, and red subpixels, the subpixel has a chevron structure in which an angle formed between at least one side and an absorption axis of the first polarizer or an absorption axis of the second polarizer is larger than 0° and not larger than 5°, and a depolarization degree of the liquid crystal cell in a visible light region satisfies a predetermined requirement.

Abstract: A light guide film that is bendable, has a strong resistance to impact, and can perform the adjustment of the brightness per region, and a backlight unit. The light guide film includes a plurality of optical units each of which includes a light guide portion and an emission portion; and a resin portion that is filled between the optical units adjacent to each other, in which the light guide portion guides light incident from a light source to the emission portion, the emission portion emits light guided and incident from the light guide portion from a light emission surface, the plurality of optical units are arranged in a plane direction of the light emission surfaces such that the light emission surfaces of the emission portions are parallel to each other, and the light guide portions and the emission portions are arranged in the plane direction of the light emission surfaces.

Abstract: The planar lighting device includes: a light source; and a brightness homogenizing member that has a laminate structure including high refractive index layers and low refractive index layers, and a light incidence portion that allows light emitted from each of the plurality of point light sources to be incident into the high refractive index layers is provided at a position of the laminate structure facing the point light source. The light incidence portion is formed of a hollow portion that is provided across the two or more high refractive index layers included in the laminate structure to penetrate at least one high refractive index layer and has a function of allowing the light to be incident into the high refractive index layers, and each of the high refractive index layers includes a light extraction mechanism that is provided at a position spaced apart from the light incidence portion.

Abstract: Provided is an image display device including an image display unit which includes a display area in which a plurality of pixels is arranged, and a non-display area provided at a periphery of the display area, a light guide unit which has one surface disposed so as to face at least an edge of the display area of the image display unit on a viewing side and another surface that is disposed at an opposite side of the light guide from the one surface and is provided at a position shifted further toward the non-display area than the one surface, and a diffraction element which is disposed between the image display unit and the light guide unit and diffracts light from the display area toward the side of the non-display area adjacent to the edge.

Abstract: A display device includes an image display panel, and a viewing angle switching element includes a first linear polarizer, an optically anisotropic layer, a viewing angle control cell, and a second linear polarizer, in which an angle formed between transmission axes of the first linear polarizer and the second linear polarizer is 45°, the optically anisotropic layer has a function of changing an azimuth of a polarization axis of linearly polarized light emitted from the first linear polarizer and causing the light to be emitted toward the viewing angle control cell, the viewing angle control cell is formed of a vertically aligned liquid crystal cell in which vertically aligned liquid crystals are tilted in one direction by voltage application, and an angle formed between a tilt azimuth of the vertically aligned liquid crystal of the viewing angle control cell and the transmission axis of the second linear polarizer is 45°.

Abstract: The backlight unit includes: a light guide that includes an incidence surface and an emission surface facing each other; and a light source portion including a plurality of point light sources that are two-dimensionally arranged to face the incidence surface of the light guide, in which light emitted from the light source portion is incident into the incidence surface of the light guide and emitted from the emission surface, the backlight unit is driven by local dimming in which at least two point light sources among the plurality of point light sources are used as a minimum point lighting unit, the light guide includes a plurality of light advancing direction conversion portions and a plurality of light extraction portions, each of the light advancing direction conversion portions is provided at each of positions on the incidence surface facing the plurality of point light sources and changes an advancing direction of each of light components to a direction in which the light component is guided in the light

Abstract: A display device includes an image display panel, and a viewing angle switching element includes a first linear polarizer, an optically anisotropic layer, a viewing angle control cell, and a second linear polarizer, in which an angle formed between transmission axes of the first linear polarizer and the second linear polarizer is 45°, the optically anisotropic layer has a function of changing an azimuth of a polarization axis of linearly polarized light emitted from the first linear polarizer and causing the light to be emitted toward the viewing angle control cell, the viewing angle control cell is formed of a vertically aligned liquid crystal cell in which vertically aligned liquid crystals are tilted in one direction by voltage application, and an angle formed between a tilt azimuth of the vertically aligned liquid crystal of the viewing angle control cell and the transmission axis of the second linear polarizer is 45°.

Abstract: A display device includes an image display panel, and a viewing angle switching element, in which the viewing angle switching element includes first and second linear polarizers arranged to face each other, and a viewing angle control cell and an optical compensation sheet arranged in a laminated manner between the first and second linear polarizers, the viewing angle control cell includes a single domain vertical alignment liquid crystal cell, an angle formed between an in-plane fast axis of the optical compensation sheet and the absorption axis or the reflection axis of the first linear polarizer is 30° to 60°, and a pretilt azimuth of the vertically aligned liquid crystal of the viewing angle control cell is at an angle of 30° to 60° from the absorption axis or the reflection axis of the first linear polarizer.