Abstract: A louver film includes a louver part having a winding structure wherein a laminated body including a light transmittance layer and a light shielding layer is wound, where the louver part includes a light transmittance part defined by the light transmittance layer, and a light shielding part defined by the light shielding layer.

Abstract: A liquid crystal display device includes a light source, a light collection part, a liquid crystal part, and an anisotropic diffusion layer. The light source emits light. The light collection part collects the light emitted from the light source in the front direction of the liquid crystal display device so that, when an image is displayed, the light collecting property in a left-right direction is different from the light collecting property in an updown direction. The liquid crystal part controls a transmission state of the light collected by the light collection part using a liquid crystal. The anisotropic diffusion layer anisotropically diffuses the light transmitted through the liquid crystal part.

Abstract: Resin films and the like capable of improving viewing angle characteristics and antireflection characteristics, for example, when the resin film is applied to a display are provided. The resin film includes a low-refractive-index layer 17 and an anisotropic diffusion layer 16. The low-refractive-index layer 17 has a refractive index of 1.40 or less. The anisotropic diffusion layer 16 anisotropically diffuses light. The anisotropic diffusion layer 16 contains anisotropic particles 162 and a resin portion 161. The anisotropic particles 162 have an anisotropic shape and a longitudinal direction aligned along one direction. The resin portion 161 diffuses the anisotropic particles 162 and is formed of a resin. A reflectivity of the resin film excluding a specular reflection light component is 1.0% or less.

Abstract: A light-diffuser includes a transparent resin and transparent particles dispersed in the transparent resin. The transparent resin has a refractive index different from that of the transparent particles, and at least one portion of an outer perimeter of each of the transparent particles, respectively, is made compatible with the transparent resin disposed in the vicinity of the transparent particles, respectively.

Abstract: Provided is a resin film, including: a basic substance; hollow silica particles provided in the basic substance; and a surface modifying agent including an oil repellent surface modifying agent and a lipophilic surface modifying agent.

Abstract: An optical member, a polarization member, and a display device are provided. The optical member includes a substrate, and a functional layer provided on the substrate, the functional layer including a high refractive layer and a low refractive layer, wherein the high refractive layer has a higher refractive index than that of the substrate and a diffraction grating structure, and the low refractive layer has a lower refractive index than that of the high refractive layer, wherein an interface between the substrate and the high refractive layer and an interface between the high refractive layer and the low refractive layer are in states in which components of the respective layers with the respective interfaces therebetween are compatible with each other.

Abstract: A light-diffuser includes a transparent resin and transparent particles dispersed in the transparent resin. The transparent resin has a refractive index different from that of the transparent particles, and at least one portion of an outer perimeter of each of the transparent particles, respectively, is made compatible with the transparent resin disposed in the vicinity of the transparent particles, respectively.

Abstract: Provided are a light emitting diode capable of improving contrast, a method for manufacturing a light emitting diode, a light emitting diode display device, and a method for manufacturing a light emitting diode display device. The light emitting diode according to an embodiment comprises a package substrate having an electrode provided therein; a light emitting diode chip provided on the package substrate; a power line electrically connecting the light emitting diode chip to the electrode; and a black layer covering the electrode including a part connected to the power line.

Abstract: An optical member, a polarization member, and a display device are provided. The optical member includes a substrate, and a functional layer provided on the substrate, the functional layer including a high refractive layer and a low refractive layer, wherein the high refractive layer has a higher refractive index than that of the substrate and a diffraction grating structure, and the low refractive layer has a lower refractive index than that of the high refractive layer, wherein an interface between the substrate and the high refractive layer and an interface between the high refractive layer and the low refractive layer are in states in which components of the respective layers with the respective interfaces therebetween are compatible with each other.

Abstract: Provided are a light emitting diode capable of improving contrast, a method for manufacturing a light emitting diode, a light emitting diode display device, and a method for manufacturing a light emitting diode display device. The light emitting diode according to an embodiment comprises a package substrate having an electrode provided therein; a light emitting diode chip provided on the package substrate; a power line electrically connecting the light emitting diode chip to the electrode; and a black layer covering the electrode including a part connected to the power line.

Abstract: The present invention provides a light guide plate for emitting light radiated from a light source disposed at a side of the light guide plate. The light guide layer has a light incidence side for internally introducing light emitted from the light source at the side thereof; a polarization separation layer comprising a first matrix layer and a first fiber having birefringence and disposed more toward the light emission side than the light guide layer; a low refractive index layer having a lower refractive index than the refractive index of the first matrix layer; and an angle improvement layer comprising a second matrix layer having a second fiber disposed inside the second matrix layer.

Abstract: A light guide panel includes: a light guide layer having a light incident surface; a polarization separation layer configured to select a desired polarization among light emitted from the light guide layer and to emit light having the polarization; and a light homogenization layer including a plurality of fibers and a supporting medium of the fibers, the light homogenization layer configured to diffuse and scatter light incident on the light guide layer into the light guide layer. The polarization separation layer includes: a plurality of first fibers having birefringence; and a first supporting medium that is isotropic and configured to support the first fibers. The refractive index of the first supporting medium corresponds to at least one of two different refractive indices of the first fibers. The light homogenization layer includes: a plurality of second fibers having birefringence; and a second supporting medium that is isotropic and configured to support the second fibers.

Abstract: A projection-type image display device includes an image light generator configured to generate image light, a projection optics configured to project the image light onto a screen. The projection optics includes a reflection mirror configured to reflect the image light toward the screen, the image light outputted from the image light generator. A projection-type image display device includes a protective cover provided on an optical path of the image light reflected by the reflection mirror. The protective cover has a transmissive region transmitting the image light reflected by the reflection mirror.

Abstract: The present invention provides a light guide plate for emitting light radiated from a light source disposed at a side of the light guide plate. The light guide layer has a light incidence side for internally introducing light emitted from the light source at the side thereof; a polarization separation layer comprising a first matrix layer and a first fiber having birefringence and disposed more toward the light emission side than the light guide layer; a low refractive index layer having a lower refractive index than the refractive index of the first matrix layer; and an angle improvement layer comprising a second matrix layer having a second fiber disposed inside the second matrix layer.

Abstract: A projection-type image display device includes an image light generator configured to generate image light, a projection optics configured to project the image light onto a screen. The projection optics includes a reflection mirror configured to reflect the image light toward the screen, the image light outputted from the image light generator. A projection-type image display device includes a protective cover provided on an optical path of the image light reflected by the reflection mirror. The protective cover has a transmissive region transmitting the image light reflected by the reflection mirror.

Abstract: An optical device includes a main body having a light incident surface, a light emitting surface provided facing the light incident surface, and a light-reflecting side surface provided from a periphery of the light incident surface to a periphery of the light emitting surface. In the optical device, the light incident surface, the light emitting surface and the light-reflecting side surface are mirror-finished, and a supporting portion configured to support the main body is provided on the light-reflecting side surface.

Abstract: A pretensioner (1) for a seat belt system (7) of an automobile includes a gas generator (2), a gas pipe (3), a piston (5) and a coupling mechanism (6). The gas generator is adapted to generate a high-pressure gas when a shock occurs in the automobile due to a collision, a sudden stop, etc. The gas pipe is formed to receive therein the gas generator. The gas pipe is adapted to guide the high-pressure gas released from the gas generator to the piston. The piston is adapted to be moved or displaced by the pressure of the high-pressure gas guided by the gas pipe. The coupling mechanism is connected to each of the piston and a buckle (8) of the seat belt system (7). The coupling mechanism is adapted to wind up or pull a seat belt (9) in accordance with the movement of the piston to increase a restraining force of the seat belt.

Abstract: A light guide panel includes: a light guide layer having a light incident surface; a polarization separation layer configured to select a desired polarization among light emitted from the light guide layer and to emit light having the polarization; and a light homogenization layer including a plurality of fibers and a supporting medium of the fibers, the light homogenization layer configured to diffuse and scatter light incident on the light guide layer into the light guide layer. The polarization separation layer includes: a plurality of first fibers having birefringence; and a first supporting medium that is isotropic and configured to support the first fibers. The refractive index of the first supporting medium corresponds to at least one of two different refractive indices of the first fibers. The light homogenization layer includes: a plurality of second fibers having birefringence; and a second supporting medium that is isotropic and configured to support the second fibers.

Abstract: An image display device includes a light source which emits laser light; an optical element which is operable to switch between a first state for reducing a coherence of the laser light and a second state for substantially maintaining the coherence of the laser light; a switching control circuit which controls the optical element; an imager which modulates the laser light transmitted through the optical element; and a modulation control circuit which controls the imager based on an image signal. The modulation control circuit causes the imager to render an image pattern for generating an image by changing alight amount at each pixel position when the optical element is in the first state, and causes the imager to render a hologram pattern for generating an image by diffraction when the optical element is in the second state.

Abstract: An illumination apparatus includes; a first solid-state light source, a second solid-state light source, a first arrangement member provided with a first arrangement surface, a second arrangement member provided with a second arrangement surface, an optical unit configured to reduce a dispersion angle of a light beam. The first solid-state light source emits a light beam having a first directivity. The second solid-state light source emits a light beam having a second directivity greater than the first directivity. A distance from the second arrangement surface to the second light-entering surface is longer than a distance from the first arrangement surface to the first light-entering surface.