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| Number | Title | Issue Date |
| 7855833 | Transmission screen A transmission screen through which an observer can see the side of the screen opposite to the observer side, and which has a sufficient viewing angle is provided. The transmission screen is a transmission screen 1 having a light diffusing layer 2 comp... | 12/21/2010 |
| 7787180 | Discontinuous or variable thickness gain modification coating for projection film and method for making same The present invention relates to projection films and methods of making the same. In particular, the present invention relates to a projection film whereby the microspheres exhibit improved alignment on the light exit surface and have alignment on the light entrance... | 08/31/2010 |
| 7719763 | Light-diffusing member, transmission type screen, rear-projection-type display, and light-absorbing-part-forming resin composition The present invention provides a light-diffusing member having no non-uniformity in stripes. The light-diffusing member according to the present invention is for diffusing at least a part of transmitted light by totally reflecting the same. The light-diffusing membe... | 05/18/2010 |
| 7715097 | Screen The screen of the invention comprises an oriented film having a direction of maximum scattering (scattering axis) and a direction of minimum scattering (transmitting axis) for linear polarized light, and containing macromolecular fine particles in a macromolecular m... | 05/11/2010 |
| 7715096 | Light diffusing screen A light diffusing screen for a single light source-type rear projection television, for use in combination with a Fresnel lens sheet, which can reduce scintillation and, regulate the surface roughness of the screen and provide good images. The light diffusing screen... | 05/11/2010 |
| 7605978 | Transparent screen and projection display unit A transparent screen and a projection display unit capable of reducing the speckle with maintaining the brightness of the image light. A wavefront-dividing phase-modulating component 21, which divides the wavefront of the image light emitted from a Fresnel le... | 10/20/2009 |
| 7602550 | Stable rear projection screen and method for the production thereof The present invention relates to rear-projection screens which have at least one scattering layer encompassing scattering particles and has at least one backing layer, characterized in that the halved-intensity angle of the scattering layer is greater than or equal ... | 10/13/2009 |
| 7599117 | View angle control sheet and display device A view angle control sheet having a wide view angle, in which diffuse light from a screen image source is effectively utilized to suppress a decrease in screen brightness while a decrease in image contrast caused by an outside light beam is suppressed to prevent gen... | 10/06/2009 |
| 7453634 | Discontinuous or variable thickness gain modification coating for projection film and method for making same The present invention relates to projection films and methods of making the same. In particular, the present invention relates to a projection film whereby the microspheres exhibit improved alignment on the light exit surface and have alignment on the light entrance... | 11/18/2008 |
| 7453636 | High contrast optical path corrected screen By using high and low refractive index materials, a planarized reflective-refractive Fresnel lens and a planarized refractive lenticular lens can be created. These flat screen components eliminate the need for an air-gap, thus reducing the screen thickness. Addition... | 11/18/2008 |
| 7453635 | Imaging material with improved contrast An imaging material has been developed which provides improved image contrast, increased gain and increased viewing angle. A method for production of the screen element is also described. The imaging material of the invention includes a refractive optical element wh... | 11/18/2008 |
| 7408708 | Diffusing sheet, surface light source unit, and transmission type display A diffusing sheet, a surface light source unit, and a transmission type display that can attain uniform illumination so that the brightness of light on the display screen appears uniform regardless of the position from which the display screen is observed. The diffu... | 08/05/2008 |
| 7403334 | Optical member and process of producing the same The present invention provides an optical member having excellent anti-reflection properties, capable of being produced inexpensively as compared with conventional optical members having anti-reflection properties and of being mass-produced with quality kept constan... | 07/22/2008 |
| 7391568 | Luminous intensity distribution control device and display having the same A liquid crystal display apparatus including: a liquid crystal display element having a liquid crystal layer; a backlight apparatus arranged at one side of the couple of substrates of the liquid crystal display element; a polarizer arranged between the liquid crysta... | 06/24/2008 |
| 7375884 | Rear projection screen and optical device thereof A rear-projection screen comprises an optical unit, a light-blocking layer, and an optical lens. The optical unit has a first surface and a second surface. The first surface is opposite to the second surface. The first surface has a plurality of cylindrical convexes... | 05/20/2008 |
| 7372628 | Display screen A display screen for a projection device is disclosed, wherein the display screen includes a substantially rigid translucent backing structure, and a viewing surface disposed on the backing structure, wherein the viewing surface has a frosted appearance. The display... | 05/13/2008 |
| RE40226 | Rear projection screen having reduced scintillation A rear projection screen of the present invention includes lens sheets or optical sheets having an optical function of condensing or diffusing light. The lens sheets or optical sheets have, as a whole, two or more diffusing layers (diffusing parts) separately provid... | 04/08/2008 |
| 7352508 | Fresnel lens sheet and transmission type screen comprising it The present invention provides a Fresnel lens sheet capable of effectively preventing such troubles as the production of double images that occurs due to stray light. A Fresnel lens sheet (1) comprises a base (1a) in sheet form, and a plurality ... | 04/01/2008 |
| 7345819 | Light diffusing member There is provided a light diffusing member for a transmission screen that has a satisfactory surface protective effect while maintaining excellent light diffusing effect and antireflective effect. The light diffusing member for a transmission screen comprises a hard... | 03/18/2008 |
| 7342720 | Surface protective member for transmission screen There is provided a surface protective member for a transmission screen that has excellent antireflective effect while maintaining a surface protective effect. The surface protective member for a transmission screen comprises a fine particle-containing hard coat lay... | 03/11/2008 |
| 7342719 | Projection screen with reduced speckle The projection screen assembly minimizes speckle while preserving high ambient viewability. The screen assembly, having a light-source side and a viewing side, includes a screen layer, a polarizing contrast filter, and a speckle contrast reducing layer. The screen l... | 03/11/2008 |
| 7339732 | Scratch-resistant rear projection screen and method for producing the same The present invention relates to a rear-projection screen encompassing at least one light-scattering polymethyl methacrylate layer, which comprises a polymethyl methacrylate matrix and spherical scattering particles (A) and spherical particles (B) with a different m... | 03/04/2008 |
| 7324169 | Projection optical system, projection television, and method of manufacturing lens included in projection optical system Provided are a projection optical system, a projection television, and a method of manufacturing a lens included in the projection optical system. The projection optical system includes lenses for projecting color beams onto a screen. A color filter layer, absorbing... | 01/29/2008 |
| 7324277 | Both-side image film screen Disclosed is a double-sided image film screen including a plastic material having a high optical transmission property and a light-refracting material, made of silica, having an optical transmission property and a refractivity of 1.4˜2.5, wherein a content and a pa... | 01/29/2008 |
| 7320823 | Light diffusing body and a transmission type screen A light diffusing body and transmission type screen, which can reduce the shift of the color tone of the light source light seen through the light diffusing body and prevent the phenomenon that the white light source seen through the light diffusing body looks color... | 01/22/2008 |
| 7317677 | Semiconductor laser light source device and optical pickup device An semiconductor laser light source apparatus includes: a semiconductor laser oscillator for emitting a laser beam; and a lens for transmitting the laser beam emitted by the semiconductor laser oscillator, wherein the lens comprises a light transparent material in w... | 01/08/2008 |
| 7316482 | Reflecting mirror and projection image display apparatus using the same The present invention is directed to the provision of a reflecting mirror that suppresses decreases in the resolution performance and contrast performance by decreasing the mean surface roughness. In a projection type image display apparatus including a projector le... | 01/08/2008 |
| 7317572 | Fresnel lens sheet, rear projection screen and rear projection display There is provided a Fresnel lens sheet for converging light rays fallen thereon from oblique directions, and capable of reducing the reflection of external light, of enabling displaying images in satisfactory contrast, of suppressing the occurrence of moiré and of ... | 01/08/2008 |
| 7313305 | Display An image display comprises an image display device for generating a viewable image; and an optical angular selector (290) for selecting an angular range of light to form the viewable image, the optical angular selector having an array of substantially parallel light... | 12/25/2007 |
| 7301264 | Front plate and display device using same Frusto-conical needle-shaped light guide paths are implanted on the surface of a display panel such that output light from display elements propagate through the needle-shaped light guide paths through total reflection, while external light repeats reflections multi... | 11/27/2007 |
| 7297380 | Light-diffusing films, backlight display devices comprising the light-diffusing films, and methods of making the same A light-diffusing film comprises about 90 wt. % to about 99.999 wt. % polycarbonate, wherein the polycarbonate comprises a yellowness index of about 0.8 to about 1.5 as measured in accordance with ASTM E313-73 (D1925); about 0.001 wt. % to about 3 wt. % light-diffus... | 11/20/2007 |
| 7297381 | Light diffusing films, methods of making the same, and articles using the same Disclosed herein are light diffusing films, methods of making the same and articles using the same. In one embodiment, a light diffusing film is formed from a composition comprising: a polycarbonate, phosphite stabilizer, epoxy stabilizer, hindered phenol stabilizer... | 11/20/2007 |
| 7292391 | Method of manufacturing a lens substrate with straight light control portions, a lens substrate with straight light control portions, a transmission screen and a rear projection A method of manufacturing the lens substrate with straight light control portions 1A that is provided with a plurality of convex lenses (microlenses) 32 on a surface thereof and is used so that light enters the lens substrate from the side of the surfa... | 11/06/2007 |
| 7271955 | Transmission screen A transmission screen is capable of preventing the reduction of contrast in images due to external light such as emitted by internal lighting fixtures. The transmission screen includes a Fresnel lens sheet having a front surface facing the viewer and provided with F... | 09/18/2007 |
| 7262912 | Front-projection screens including reflecting layers and optically absorbing layers having apertures therein, and methods of fabricating the same A front-projection screen can include a substrate having first and second opposing sides with an array of optical microstructures on the first side of the substrate and an image reflecting layer on the second side of the substrate opposite the array of optical micro... | 08/28/2007 |
| 7259915 | Microlens array sheet Disclosed is a microlens array sheet capable of improving a viewing angle by maintaining a fill factor while reducing a radius of curvature of the microlens of the microlens array sheet. To this end, the microlens array sheet includes: a substrate; a lens arranged o... | 08/21/2007 |
| 7256935 | Light transmission sheet, rear projection type projector, light transmission sheet manufacturing device, program, and computer-readable medium To eliminate ghosts caused by retroreflection of projected light and obtain high resolution images. Fine irregularities 5 are randomly formed on the plane of incidence 2a of a Fresnel lens sheet 2 with little space between them. Th... | 08/14/2007 |
| 7253955 | Contrast improving sheet and rear projection screen provided with the same A contrast improving sheet includes a first optical functional element and a second optical functional element on the viewing side thereof. The first optical functional element has a plurality of protrusions, each having a pair of opposite total-reflection facets fo... | 08/07/2007 |
| 7253953 | Polymer sheet for projection screen A polymer sheet for use in a projection screen comprises polyorgano silsesquioxane microspheres that enhance light diffusing characteristics. Also disclosed is a projection screen comprising at least two glass plates and the polymer sheet disposed therebetween. Also... | 08/07/2007 |
| 7248407 | Microlens array sheet of projection screen, and method for manufacturing the same The present invention discloses a microlens array sheet of a projection screen including a lens sheet having a predetermined area, microlenses arranged on one surface of the lens sheet in the horizontal and vertical directions, a black matrix including apertures cor... | 07/24/2007 |
