Abstract: A light-receiving device 10 includes a plurality of light-receiving units 10A, 10B, and 10C, in which, in the element substrate 11A constituting the light-receiving unit 10A, the rear surface of a second terminal forming area 16Ac, upon which a connection pad PAc is formed, is bonded to the front surface of a cover glass 14B covering a plurality of light-receiving elements 12 constituting the light-receiving unit 10B, and in the element substrate 11C constituting the light-receiving unit 10C, the rear surface of a first terminal forming area 16Cb, upon which a connection pad PCb is formed, is bonded with the front surface of the cover glass 14B of the light-receiving unit 10B. As a result, an increase in manufacturing cost and a decrease in yield are mitigated so that it is possible to provide a light-receiving device upon which light-receiving elements are disposed continuously over a long distance at a high density, as well as an optical touch panel device provided with the same.

Abstract: In an edge-light type LED backlight in which visible light LED light sources and non-visible light LED light sources are mounted on a FPC in a side-view type manner and light enters a light guide plate through a side surface, in order that visible light and non-visible light are efficiently guided into the light guide plate and the efficiency of light emission is enhanced, reflective members and that reflect and guide both the visible light and the non-visible light to an entrance portion are provided on a first surface side corresponding to the mounting surface side of the FPC and a second surface side corresponding to the back surface side of the FPC.

Abstract: Disclosed are: a position detection system having improved flexibility in selection of line sensors; and others. In the position detection system (PM) of the present invention, a phosphor (11) which can excite invisible light (UV light) that is light emitted from an LED (23) is arranged on an optical path between the LED (23) and a light receiving element (26).

Abstract: A liquid crystal display device of high image quality is provided at a low cost, in which the viewing angle is restricted only in a specific direction. A liquid crystal display device of the present invention, which has a plurality of pixels in a matrix arrangement, includes: a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; and a plurality of microlenses provided on a surface of the first substrate which is opposite to the liquid crystal layer, the microlenses being arranged so as to correspond to the plurality of pixels, and each of the microlenses having a curved surface configured to collect incoming light, wherein d satisfies the following relationship: d>p.((2n)2?1)½ where d is a thickness of the first substrate, p is an arrangement pitch of the plurality of pixels, and n is a refractive index of the major material of the first substrate.

Abstract: A liquid crystal display panel according to the present invention includes: a liquid crystal display panel including an electrical element substrate on which switching elements for controlling the light transmittance of a liquid crystal layer are formed so as to respectively correspond to pixels; a microlens array provided on a light-incident side of the liquid crystal display panel; a support provided on the light-incident side of the liquid crystal display panel so as to be in a peripheral region of the microlens array; a rear-face side optical film attached to the liquid crystal display panel via the support; and a wiring connection substrate mounted to the electrical element substrate. The electrical element substrate includes an overhang which projects from the support in the direction of the wiring connection substrate, and the wiring connection substrate is mounted to the overhang.

Abstract: There is provided a liquid crystal display panel with microlenses in which deformation, peeling, and the like of an optical film are not likely to occur and which has a good displaying quality. A liquid crystal display panel according to the present invention includes: a microlens array provided on a light-incident side of a liquid crystal display panel; a support provided on the light-incident side of the liquid crystal display panel so as to surround the microlens array; and an optical film attached to the liquid crystal display panel via the support. A gap is formed between the microlens array and the optical film; at least one vent hole connecting a space outside the support and the gap is formed in the support; and, when seen perpendicularly with respect to the plane of the liquid crystal display panel, the vent hole extends in a bending manner or the vent hole extends in an oblique direction with respect to an inner face of the support.

Abstract: In a liquid crystal display apparatus (1) including a touch panel, a liquid crystal panel (display portion) (2) having a plurality of pixels, and a backlight device (backlight portion) (3) that irradiates the liquid crystal panel (2) with illumination light, the touch panel includes optical sensors (25) that are provided in pixel units and that detect infrared light. Furthermore, the backlight device (3) includes white light-emitting diodes (first light-emitting diode portion) (26) which can emit white light, infrared light-emitting diodes (second light-emitting diode portion) (27) which emit infrared light, and a substrate (28) on which the white light-emitting diodes (26) and the infrared light-emitting diodes (27) are integrally provided.

Abstract: One of the objects is to improve the light utilization efficiency of a liquid crystal display panel with microlenses. A liquid crystal display device of the present invention, including a plurality of pixels arranged in a matrix along a first direction and a second direction which are perpendicular to each other, includes a TFT substrate, a counter substrate, a liquid crystal layer, a plurality of microlenses, and a backlight provided on a side of the plurality of microlenses which is opposite to the TFT substrate. The plurality of microlenses includes a plurality of lenticular lenses extending in the first direction, the plurality of lenticular lenses being arranged side by side along the second direction. The backlight includes a prism sheet placed over a first surface of the light guide plate which is closer to the microlens.

Abstract: A liquid crystal display device of high image quality is provided at a low cost, in which the viewing angle is restricted only in a specific direction. A liquid crystal display device of the present invention, which has a plurality of pixels in a matrix arrangement, includes: a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; and a plurality of microlenses provided on a surface of the first substrate which is opposite to the liquid crystal layer, the microlenses being arranged so as to correspond to the plurality of pixels, and each of the microlenses having a curved surface configured to collect incoming light, wherein d satisfies the following relationship: d>p·((2n)2?1)1/2 where d is a thickness of the first substrate, p is an arrangement pitch of the plurality of pixels, and n is a refractive index of the major material of the first substrate.

Abstract: An illuminator 10 according to the present invention includes a plurality of light sources 14 for emitting light, a light guide plate 12 for propagating the emitted light, and an anisotropic diffusion plate 11 disposed in at least a portion of the light guide plate 12 closer to the light sources 14, the anisotropic diffusion plate 11 diffusing light propagating through the light guide plate 12. Regarding in-plane directions of the light guide plate 12, the anisotropic diffusion plate 11 diffuses light more along a direction which is parallel to an arraying direction of the plurality of light sources 14 than along a direction perpendicular thereto. As a result, while suppressing spread of a half-luminance angle of light, appearance of an image can be improved, and also lowering of luminance caused by diffusion can be suppressed.

Abstract: A vertically aligned type liquid crystal display panel with wide viewing angles and high display quality can be provided with high production efficiency. A liquid crystal display panel of the present invention includes: a liquid crystal layer of a vertically aligned type; a light-incident side substrate and a light-outgoing side substrate which oppose each other via the liquid crystal layer; a microlens array provided on a light-outgoing side of the light-outgoing side substrate, which includes a plurality of microlenses; an optical film which includes a first polarizing plate provided on a light-outgoing side of the microlens array; and an optical film which includes a second polarizing plate provided on a light-incident side of the light-incident side substrate.

Abstract: An illuminator 10 according to the present invention includes a light source 14 for emitting light, a light guide plate 12 for propagating the emitted light, and a prism sheet 18 having a plurality of prisms 26 for refracting the light propagated through the light guide plate 12. The prism sheet includes anisotropic particles 31 having diffusion anisotropy. Regarding in-plane directions of the prism sheet 18, an arraying direction 18a of the plurality of prisms 26 and a major axis direction 31a of the anisotropic particles are shifted by an angle which is greater than 0 degrees and smaller than 5 degrees. This makes it possible to efficiently suppress occurrence of moire while suppressing spread of a half-luminance angle of light.

Abstract: A highly reliable liquid crystal display panel is provided in which problems such as mixing of foreign matter are prevented. A liquid crystal display panel according to the present invention includes: a composite substrate including a pair of substrates and a liquid crystal layer disposed between the pair of substrates; a microlens array provided on a light-incident side of the composite substrate; a support provided on the light-incident side of the composite substrate so as to surround the microlens array; and an optical film attached to the composite substrate via the support. The support has a protrusion protruding from an outer principal face of the support toward the external space. A venthole is formed in the support, the venthole connecting an internal space surrounded by the support and the external space. An opening of the venthole on the external space side is formed in the protrusion.

Abstract: There is provided a liquid crystal display panel with microlenses in which deformation, peeling, and the like of an optical film are not likely to occur and which has a good displaying quality. A liquid crystal display panel according to the present invention includes: a microlens array provided on a light-incident side of a liquid crystal display panel; a support provided on the light-incident side of the liquid crystal display panel so as to surround the microlens array; and an optical film attached to the liquid crystal display panel via the support. A gap is formed between the microlens array and the optical film; at least one vent hole connecting a space outside the support and the gap is formed in the support; and, when seen perpendicularly with respect to the plane of the liquid crystal display panel, the vent hole extends in a bending manner or the vent hole extends in an oblique direction with respect to an inner face of the support.

Abstract: There is provided a liquid crystal display panel with microlenses in which deformation, peeling, and the like of an optical film are not likely to occur and which has a good displaying quality. A liquid crystal display panel according to the present invention includes: a microlens array provided on a light-incident side of a liquid crystal display panel; a support provided on the light-incident side of the liquid crystal display panel so as to surround the microlens array; and an optical film attached to the liquid crystal display panel via the support. A gap is formed between the microlens array and the optical film; at least one vent hole connecting a space outside the support and the gap is formed in the support; and, when seen perpendicularly with respect to the plane of the liquid crystal display panel, the vent hole extends in a bending manner or the vent hole extends in an oblique direction with respect to an inner face of the support.

Abstract: There is provided a liquid crystal display panel with microlenses in which deformation, peeling, and the like of an optical film are not likely to occur and which has a good displaying quality. A liquid crystal display panel according to the present invention includes: a microlens array provided on a light-incident side of a liquid crystal display panel; a support provided on the light-incident side of the liquid crystal display panel so as to surround the microlens array; and an optical film attached to the liquid crystal display panel via the support. A gap is formed between the microlens array and the optical film; at least one vent hole connecting a space outside the support and the gap is formed in the support; and, when seen perpendicularly with respect to the plane of the liquid crystal display panel, the vent hole extends in a bending manner or the vent hole extends in an oblique direction with respect to an inner face of the support.