To suppress, in an optical body in which a microlens array as a non-periodic structure is arranged and deployed in a wide range, occurrence of periodic optical properties in a structural unit larger than the non-periodic structure. The optical body includes a single non-periodic structure region or a collection of a plurality of non-periodic structure regions, the non-periodic structure region being composed of a single lens group including a plurality of single lenses. In the non-periodic structure region, a located state of the single lens group is non-periodic as a whole. A ratio of a size of the non-periodic structure region to an average aperture diameter of the single lenses in the non-periodic structure region is more than or equal to 25.

A display device includes a display unit having a display surface to display an image, a cover panel stacked on the display surface of the display unit, and a holding frame stacked on a back surface of the display unit. The display surface of the display unit and the cover panel are bonded to each other with an optical adhesive material. The holding frame and the display unit are bonded to each other with a variable thickness adhesive material a thickness of which is variable at least at a time of bonding the holding frame and the display unit.

A control method of a lighting apparatus for a vehicle may include: sensing, by a sensing unit, a distance between the vehicle and a pedestrian; determining, by a control unit, whether the distance between the vehicle and the pedestrian falls within a first distance; determining, by the control unit, a walking direction of the pedestrian when the distance between the vehicle and the pedestrian falls within the first distance; and indicating, by the control unit, the walking direction to the pedestrian by operating a plurality of flap units.

The present invention relates to a prism layer (10) superimposed on the front surface of a display (20), in which: a plurality of prism parts (11) are vertically arranged; the prism parts (11) each have an upper slope surface (12) and a lower slope surface (13), and have a corner part (14) which has a forward protruding triangular shape in a cross-sectional view; the angle θ1 of the upper slope surface (12) with respect to a rear surface (15) is set to 60° to 120°, and the angle θ2 of the lower slope surface (13) with respect to the rear surface (15) is set to 5° to 45°; and the pitch Pp of a groove part (16) between the prism parts (11) is made smaller than the vertical pitch Pd of a pixel (21) of the display (20).

A display screen, comprising a panel (1), a light-emitting plate (2), a light blocking film (3) and an image sensor (4) that are stacked sequentially. The light blocking film (3) is provided with a light-transmitting imaging pinhole (31); the light-emitting plate (2) is provided with a plurality of light-emitting units (21) and a circuit network (22) for driving each of the light-emitting units (21), wherein the circuit network (22) divides the light-emitting plate (2) into a plurality of light-transmitting regions (23), and a light path is formed by the panel (1), the light-transmitting region (23) corresponding to a position of the imaging pinhole and the imaging pinhole (31); alternatively, the light-emitting plate (2) is a plane light-emitting plate which is light-transmissive, and a light path is formed by the panel (1), the plane light-emitting plate and the imaging pinhole (31); and a part of light projected by the light-emitting plate (2) toward the panel (1) is reflected by a target object located on or outside the panel (1), and then irradiated onto the image sensor (4) through the light path. According to the principle of pinhole imaging, the light passing through the imaging pinhole (31) can image on the image sensor (4), thereby enabling the display screen to have both a display function and an image acquisition function.

An object of the present invention is to provide an optical film which is excellent in the adhesiveness between a polymer support and a photo alignment film and in which a liquid crystal compound having reverse wavelength dispersibility is uniformly aligned. The optical film is obtained by laminating, in the following order: a polymer support containing an additive; a photo alignment film; and an optically anisotropic film, wherein the optically anisotropic film is formed of a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound having reverse wavelength dispersibility, and an amount of a component derived from the additive of the polymer support, which is contained in a boundary region with the optically anisotropic film in the photo alignment film is 0.10 to 0.50 mass % with respect to a total mass of the photo alignment film.

The present disclosure protects a flexible substrate and prevents the generation of a crack and the development of a crack inside a display device. A display device includes a display area and a frame region which is a non-display area provided outside the display area, and in the frame region, at least a flexible substrate and a moisture-proof layer are disposed in this order, and a metal oxide film is further provided between the flexible substrate and the moisture-proof layer.

According to one embodiment, a display device includes a liquid crystal panel, a case covering a rear surface side of the liquid crystal panel, a backlight device disposed in the case and opposed to the liquid crystal panel with a gap, a first holding member provided on a side plate of the case, and a second holding member including a fixation part attached to the side plate of the case, and a second holding part interposed between an optical sheet and a rear surface of the liquid crystal panel to cover a light source device and an end part of the optical sheet on the light source device side.

Provided are a wavelength selective absorption filter including a resin and the following dye A and dye D, each of which has a main absorption wavelength band in a different wavelength range, in which an absorbance Ab (λ) at a wavelength λ nm of this wavelength selective absorption filter satisfies a relationship of the Relational Expression (I) 0.05<Ab (450)/Ab (430)<1.00, as well as a polarizing plate and an organic electroluminescent display device or liquid crystal display device including the wavelength selective absorption filter. The dye A is a dye having a main absorption wavelength band in the wavelength selective absorption filter at a wavelength of 400 to 430 nm. The dye D is a dye having a main absorption wavelength band in the wavelength selective absorption filter at a wavelength of 640 to 730 nm.

A flexible display device is provided. The flexible display device includes: a display; a sensor configured to detect at least one rolling characteristic in response to the display being rolled; and a controller configured to perform a first function of the flexible display device based on the detected at least one rolling characteristic.