Patent application number | Description | Published |
20080225201 | SURFACE EMITTING DEVICE, LIQUID CRYSTAL DISPLAY, AND OPTICAL SHEET COMBINATION - A surface emitting device includes a light emitter, a polarizer having a transmission axis along which light emerging from the light emitter is transmitted, and an optical sheet combination disposed between the light emitter and the polarizer and composed of a plurality of optical sheets. Each of the plurality of optical sheets includes an emergent surface for causing the emergent light to emerge, a spatial structure continuously arrayed on the emergent surface, a first optical axis parallel to an extension direction of the spatial structure and having a first refractive index, and a second optical axis parallel to an array direction of the spatial structure and having a second refractive index different from the first refractive index, wherein the first or second optical axis of a smaller one of the first and second refractive indices extends almost parallel to the transmission axis of the polarizer. | 09-18-2008 |
20080232113 | LIGHT-TRANSMISSIVE FILM, METHOD FOR MANUFACTURING THE SAME, AND DISPLAY APPARATUS - A light-transmissive film for use in display devices is provided. The light-transmissive film includes a plurality of first protrusions formed on one surface and extending in a predetermined direction of the one surface, and a plurality of second protrusions formed on an opposite surface to the one surface, extending in one direction of the opposite surface, arranged parallel to the one direction, and arranged parallel to a direction intersecting the one direction. At least one of the first and second protrusions has a refractive index anisotropy in a plane. | 09-25-2008 |
20080239200 | OPTICAL SHEET AND DISPLAY UNIT - An optical sheet capable of eliminating rapid lowering of the luminance view angle while minimizing the lowering amount of the front luminance, or while avoiding the lowering of the front luminance is provided. The optical sheet includes a first light transmissive film and a second light transmissive film. The first light transmissive film and the second light transmissive film are layered on each other, the first light transmissive film has a plurality of first convexes that extend in a given direction and are arranged in parallel in a direction crossing the given direction in-plane on the second light transmissive film side, and the second light transmissive film has a plurality of second convexes that are arranged in parallel in one direction and are arranged in parallel in a direction crossing the one direction in-plane on the first light transmissive film side, and has shape anisotropy and refractive index anisotropy in-plane. | 10-02-2008 |
20080247192 | Light-Transmitting Film, Method of Forming Light-Transmitting Film, and Liquid Crystal Display - A light-transmitting film that has a predetermined polarization split function, in addition to a light-collecting function is provided. The index of refraction nx in a prism extension direction and the index of refraction in a prism alignment direction differ from each other. By generating a difference in the indices of refraction in the prism extension direction and the prism alignment direction orthogonal thereto, for the light incident on the light-transmitting film, the polarization component Lx oscillating in the prism extension direction and the polarization component Ly oscillating in the prism alignment direction can have different transmission characteristics. For example, by setting the index of refraction in the prism extension direction greater than the index of refraction in the prism alignment direction (nx>ny), among the light incident on the light-transmitting film, the amount of return light of the polarization component Lx oscillating in the prism extension direction is greater than that of the polarization component Ly oscillating in the prism alignment direction. In this way, not only a light-collecting function, but also a predetermined polarization split function is obtained. | 10-09-2008 |
20080303975 | OPTICAL SHEET COMBINATION STRUCTURE, SURFACE EMITTING DEVICE, AND LIQUID CRYSTAL DEVICE - An optical sheet combination structure disposed between a polarizer and a surface emitting unit, includes a first optical sheet having a number of columnar cubic structures of curing resin arrayed on a transparent base, a valley portion between adjacent cubic structures contacting a surface of the transparent base, and a second optical sheet disposed nearer to the side of the polarizer than the first optical sheet, having a number of columnar cubit structures arrayed on a surface, and a refractive index of the cubic structures along an extension direction thereof being different from a refractive index of the cubic structures along an array direction thereof. | 12-11-2008 |
20080316392 | Liquid Crystal Display, Optical Sheet Manufacturing Method, and Optical Sheet - A liquid crystal display, optical sheet manufacturing method, and an optical sheet are provided. The occurrence of moiré is prevented while suppressing a reduction in front luminance. The liquid crystal display includes: a liquid crystal display panel; a light source arranged on a back surface side of the liquid crystal display panel; an optical sheet with a light-condensing property arranged between the liquid crystal display panel and the light source, the optical sheet having a number of irregularities arranged continuously on a principal surface of the optical sheet; and a diffuser sheet arranged between the liquid crystal display panel and the optical sheet. The liquid crystal display is constructed so that when an arrangement pitch of the irregularities of the optical sheet is P [μm], a haze value of the diffuser sheet is H [%], a total light transmittance of the diffuser sheet is Tt [%], and a pixel pitch of the liquid crystal display panel is Pp [μm], the following relationship is satisfied: (H/Tt)·(Pp/P)≧1.6. | 12-25-2008 |
20090009686 | Surface Emitting Device and Liquid Crystal Display - To provide a surface emitting device and a liquid crystal display in which the number of divided main light-source images is increased to enhance the uniformity of luminance distribution. A surface emitting device | 01-08-2009 |
20090027885 | OPTICAL FILM, LIGHTING DEVICE AND DISPLAY UNIT - A display unit capable of reducing luminance irregularity when using a point light source is provided. The display unit includes: a panel driven based on an image signal; a plurality of point light sources arranged in a region facing the panel; and an optical sheet arranged between the panel and the plurality of point light sources. The plurality of point light sources are arranged in a first direction and also in a second direction intersecting with the first direction, and the optical sheet has a tridimensional configuration that includes a first ridgeline extending in a third direction intersecting with the first and second directions, and a second ridgeline extending in a direction intersecting with the first, second and third directions. | 01-29-2009 |
20090040427 | ILLUMINATION APPARATUS AND LIQUID CRYSTAL DISPLAY APPARATUS - An illumination apparatus is disclosed. The illumination apparatus includes a polarization plate, a light source, and a light transmission film disposed between the polarization plate and the light source and including a plurality of prisms formed on a surface thereof. The plurality of prisms each have a ridge line in a first direction and are continuously arranged in a second direction perpendicular to the first direction. The light transmission film is disposed such that a ridge line direction of the plurality of prisms is one of a perpendicular direction and an approximately perpendicular direction to a transmission axis of the polarization plate. The plurality of prisms each have refractive indexes in the ridge line direction, an arrangement direction, and a thickness direction, the refractive index in the ridge line direction being larger than the refractive indexes in the arrangement direction and thickness direction. | 02-12-2009 |
20090059120 | ILLUMINATION APPARATUS AND LIQUID CRYSTAL DISPLAY APPARATUS - An illumination apparatus is disclosed. The illumination apparatus includes a polarization plate, a light source, and a light transmission film. The light transmission film is disposed between the polarization plate and the light source and includes a plurality of prisms formed on a surface thereof, the plurality of prisms each having a ridge line in a first direction and being continuously arranged in a second direction perpendicular to the first direction. In the illumination apparatus, the light transmission film is disposed such that a ridge line direction of the plurality of prisms is one of a perpendicular direction and an approximately perpendicular direction to a transmission axis of the polarization plate. | 03-05-2009 |
20090109375 | OPTICAL SHEET, METHOD OF MANUFACTURING THE SAME, AND DISPLAY APPARATUS - A method of manufacturing the optical sheet is provided. The method includes: a first step of heating a composition containing a liquid crystal monomer or liquid crystal prepolymer and a photopolymerization initiator at a temperature equal to or higher than a melting point of the liquid crystal monomer or liquid crystal prepolymer and pressing the composition in a state where the composition is held between a master including a plurality of solid structures disposed continuously in one surface and having shape anisotropy in the one surface and a light transmission film disposed so as to face the solid structures of the master. The method also includes a second step of irradiating the composition with ultraviolet rays at a temperature lower than a phase transmission temperature to an isotropic phase to polymerize the liquid crystal monomer or liquid crystal prepolymer and, after that, separating the light transmission film from the master. | 04-30-2009 |
20090195728 | DISPLAY UNIT - A display unit in which the view angle in the horizontal direction of emitting light is wider than the view angle in the vertical direction thereof, in which the emitting light has a polarization component in the vertical direction viewable with the use of a polarized sunglass, and which is able to improve display luminance is provided. A luminance enhancement film has a plurality of convex sections which extend toward in the horizontal direction and are arranged in the direction crossing the extending direction, and in which the refractive index in the extending direction is larger than the refractive index in the arrangement direction. A wave plate changes the polarization direction of light entering the wave plate so that an angle made by a polarization direction of the polarization component in the arrangement direction of the convex section after passing through the wave plate among light passing through the luminance enhancement film and the direction of a polarizing axis a of a first polarizer becomes small. A second polarizer has a polarizing axis b that transmits the polarization component in the vertical direction. | 08-06-2009 |
20090237593 | BACKLIGHT DEVICE, LIQUID CRYSTAL DISPLAY APPARATUS, AND LIGHT DEFLECTING SHEET - According to the present invention, by controlling the angular distribution of the light outputted from a light guide plate to enable the angular brightness distribution of the light emitted from a backlight device to be controlled, the thickness of a liquid crystal display apparatus having the backlight device is reduced as well as the brightness is improved due to the reduction in returned light amount. Furthermore, since light is sufficiently mixed in the light guide plate, light sources with comparative large unevenness are enabled to be used. | 09-24-2009 |
20090303413 | OPTICAL SHEET PACKAGED BODY, OPTICAL SHEET UNIT, LIGHTING DEVICE, AND DISPLAY UNIT - An optical sheet packaged body in which a wrinkle is not generated is provided. The optical sheet packaged body includes a laminated body in which a plurality of optical sheets such as a light source image segmentation sheet, a diffusion plate, a diffusion sheet, and a luminance enhancement film are layered, and a flexible film that wraps around the laminated body and has one or a plurality of openings to expose at least part of an outer edge of the diffusion plate. An exposed portion exposed from at least one of the openings of the diffusion plate is provided with a shape (supported portion) for positioning to a chassis (bottom chassis and middle chassis) supporting the optical sheet packaged body. | 12-10-2009 |
20100026610 | OPTICAL FILM, METHOD OF MANUFACTURING THE SAME, AND DISPLAY UNIT - An optical film capable of improving luminance of a display unit, in which a viewing angle in the horizontal direction of emitted light of the display unit is wider than a viewing angle in the vertical direction and the emitted light of the display unit has a polarization component in the vertical direction viewable by polarized sunglasses, an illumination system including the same, and a display unit including the same are provided. The optical film includes a plurality of three-dimensional structures extending in one direction and arranged sequentially in a direction crossing the one direction. The three-dimensional structures contain a liquid crystalline polymer having orientation, and have refractive index anisotropy in which refractive index in the extending direction of the three-dimensional structures is smaller than refractive index in the direction crossing the extending direction of the three-dimensional structures. | 02-04-2010 |
20100033651 | SURFACE EMISSION DEVICE, OPTICAL ELEMENT AND LIQUID CRYSTAL DISPLAY DEVICE - Using a distance L between the centers of light sources | 02-11-2010 |
20100073604 | RETARDATION FILM, METHOD OF MANUFACTURING THE SAME, AND DISPLAY - A retardation film which is manufacturable by a simple process, and being capable of preventing a decline in light use efficiency is provided. A retardation film includes: a substrate having a plurality of grooves extending in a specific direction on a surface thereof; and a retardation layer arranged in contact with the surface of the substrate, and including a liquid crystal material, the liquid crystal material being aligned along the extending direction of the plurality of grooves and being polymerized. | 03-25-2010 |
20100188608 | LIGHT-TRANSMITTING FILM, METHOD OF FORMING LIGHT-TRANSMITTING FILM, AND LIQUID CRYSTAL DISPLAY - A light-transmitting film that has a predetermined polarization split function, in addition to a light-collecting function is provided. The index of refraction nx in a prism extension direction and the index of refraction in a prism alignment direction differ from each other. By generating a difference in the indices of refraction in the prism extension direction and the prism alignment direction orthogonal thereto, for the light incident on the light-transmitting film, the polarization component Lx oscillating in the prism extension direction and the polarization component Ly oscillating in the prism alignment direction can have different transmission characteristics. For example, by setting the index of refraction in the prism extension direction greater than the index of refraction in the prism alignment direction (nx>ny), among the light incident on the light-transmitting film, the amount of return light of the polarization component Lx oscillating in the prism extension direction is greater than that of the polarization component Ly oscillating in the prism alignment direction. In this way, not only a light-collecting function, but also a predetermined polarization split function is obtained. | 07-29-2010 |
20100265433 | PHASE DIFFERENCE ELEMENT AND DISPLAY DEVICE - A phase difference element, in which imbalance hardly occurs between right and left pictures during displaying a three-dimensional image, and a display device having the phase difference element are provided. A base film of the phase difference element includes, for example, a thin resin film having optical anisotropy. A slow axis of the base film points in a vertical or horizontal direction, and points in a direction intersecting with a slow axis of a right-eye region of the phase difference element and with a slow axis of a left-eye region thereof. Thus, influence due to optical anisotropy of the base film is exerted on each light being transmitted by the base film, so that the influence is not extremely greatly exerted on only one of light corresponding to a right eye and light corresponding to a left eye, the respective light being transmitted by the base film. | 10-21-2010 |
20110149208 | PHASE DIFFERENCE ELEMENT AND DISPLAY DEVICE - A phase difference element, in which imbalance hardly occurs between right and left pictures during displaying a three-dimensional image, and a display device having the phase difference element are provided. A base film | 06-23-2011 |
20110310480 | STEREOSCOPIC IMAGE OBSERVATION OPTICAL-ELEMENT, STEREOSCOPIC IMAGE OBSERVATION GLASSES, AND STEREOSCOPIC IMAGE DISPLAY SYSTEM - A stereoscopic image observation optical-element includes: a laminated member including a λ/4 phase-difference member and a polarizing member. The λ/4 phase-difference member is provided on a light incidence surface side and has a slow axis in a first direction, and the polarizing member is provided nearer to a light emission side than the λ/4 phase-difference member and has a transmission axis in a direction crossing the first direction at substantially 45 degrees. The laminated member has a curved shape projecting to the light incidence surface side, and the λ/4 phase-difference member is configured of a material having a photoelastic coefficient of less than about 80*10 | 12-22-2011 |
20120002281 | PHASE DIFFERENCE ELEMENT AND DISPLAY UNIT - A phase difference element capable of decreasing deterioration of 3D characteristics and a display unit including the phase difference element are provided. The phase difference element includes a phase difference film, and an anti-glare film. The phase difference film has a phase difference layer composed of two or more phase difference regions each having different direction of a slow axis that are regularly arranged in a plane. Retardation of the anti-glare film is 20 nm or less and total haze of the anti-glare film is 30% or less. | 01-05-2012 |
20120007275 | METHOD OF MANUFACTURING RETARDATION FILM - A method of manufacturing a retardation film includes: a first step of forming, on the same metal master, a main region having several kinds of groove regions having different extending directions of grooves, and a sub region having one kind of groove region having a predetermined extending direction of grooves or several kinds of groove regions having different extending directions of grooves; and a second step of collectively transferring reverse patterns of the main and sub regions on the metal master to a base, and then forming, on a surface of the base, a layer including an alignable material to be aligned in correspondence to irregularity of the surface of the base, thereby forming a patterned retardation region in a site having a reverse pattern of the main region, and forming an alignment mark region in a site having a reverse pattern of the sub region. | 01-12-2012 |
20120045625 | METHOD OF MANUFACTURING LAMINATE, METHOD OF MANUFACTURING RETARDATION FILM, AND THE RETARDATION FILM - A method of manufacturing a laminate includes: a step of deriving, by the processor, an in-plane positional relationship between the retardation film and the object from an image of each of the retardation film and the object captured by the camera while the retardation film and the object are disposed in this order from a side of the camera within the imaging area of the camera at positions on a side opposite to the camera with respect to the (2n+1)λ/4 retardation film; and a step of performing alignment of the retardation film to the object based on the positional relationship derived by the processor, and then attaching the retardation film to the object. | 02-23-2012 |
20120268435 | PHASE DIFFERENCE ELEMENT AND DISPLAY DEVICE - A phase difference element and a display device having the phase difference element are provided. A base film | 10-25-2012 |
20130052341 | ALIGNMENT FILM AND METHOD OF MANUFACTURING THE ALIGNMENT FILM, AND RETARDATION FILM AND METHOD OF MANUFACTURING THE RETARDATION FILM - A method of manufacturing an alignment film includes directly pressing a master having fine linear concavity-convexity in order of nanometer on a surface thereof to a surface of a base film at a temperature lower than a glass transition temperature of the base film, and thereby transferring a pattern corresponding to the concavity-convexity on the master to the surface of the base film. | 02-28-2013 |
20140192303 | DISPLAY UNIT - There is provided a display unit capable of reducing deterioration in the 3D characteristics. A phase difference device is bonded to a surface on a light outgoing side of a liquid crystal display panel. In the phase difference device, two kinds of phase difference regions with slow-axis directions different from each other are arranged in correspondence with each pixel. Each of the phase difference regions is arranged in contact with the phase difference region of a different kind, and a side section, of each of the phase difference region, that is in contact with the phase difference region of the different kind has waviness with an amplitude a that satisfies following expressions: | 07-10-2014 |