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| Number | Title | Issue Date |
| 8049961 | Lens unit and projection screen made of the same A lens unit and a projection screen made of the same are disclosed. The lens unit includes a micro lens having a light incident surface and a light emergent surface opposing to the light incident surface; a light absorbing layer formed on the light emergent surface ... | 11/01/2011 |
| 7990614 | Projection screen A projection screen is adapted to reflect the projection light generated by a projector. The projection screen includes a light absorbing layer, a light reflection layer connected adjacently to the light absorbing layer, and a light transparent layer. The light tran... | 08/02/2011 |
| 7974005 | Display screen for use in front projectors A screen for use in image presentations comprises an array of transmissive elongated prisms. The screen is capable of delivering incident light, having an incident angle within a specific incident angle range, to the viewing area, while preventing ambient light, hav... | 07/05/2011 |
| 7961390 | Screen of projector A screen of a projector having a substrate and a plurality of asymmetric optical structures is provided. There is a plurality of light absorbing zones and a plurality of reflective zones alternatively disposed on a surface of the substrate facing the projector. The ... | 06/14/2011 |
| 7948678 | Four-region catadioptric tile This invention presents a four-region catadioptric tile. The four-region catadioptric tile includes a first surface, a second surface, and a filler material layer between the first and second surfaces. The four regions includes a first region wherein the first surfa... | 05/24/2011 |
| 7869126 | Screen and projection system A screen includes a screen sheet including a lens array having a plurality of element lenses arranged in a two-dimensional plane on the front side of the screen, a plurality of reflection surfaces disposed on the backside of the lens array, the plurality of reflecti... | 01/11/2011 |
| 7859750 | Screen, projection system, and method of manufacturing the screen A screen includes a front surface structure section including a lens array having a plurality of element lenses arranged on a two-dimensional plane on a front side of the screen, a rear surface structure section including a plurality of scattering surfaces formed on... | 12/28/2010 |
| 7586680 | Projection screen having a plural number of light control layers A projection screen using light control layers having high light diffusion and further providing an image with high image quality over a wide angle range without deteriorating light transmittance is provided. A plural number of light control layers in which a haze v... | 09/08/2009 |
| 7457036 | Front projection screens including reflective layer and an array of anamorphic microlenses Projection screens include a substrate, a reflective layer on the substrate and a refractive layer on the substrate. The refractive layer includes an array of anamorphic microlenses. ... | 11/25/2008 |
| 7443588 | Optical diffuser for producing a circular light field The optical diffuser has a transparent base body with a first surface, which is divided into facets. Each facet has an elevation or a depression correlated or associated with a second curved surface. Respective facets have correspondingly different geometrical shape... | 10/28/2008 |
| 7443583 | Screen and image projector using the screen A projector screen having a simple configuration, which provides a wide field of view angle and can be used for both transmission and reflection projection is achieved. A screen according to the present invention is provided with a directional scattering layer that ... | 10/28/2008 |
| 7436593 | Screen, fresnel lens sheet used therefor, and image display apparatus using the same Images that are bright even on the periphery of a transmissive screen are obtained by reducing reflection loss of the screen when the screen incident angle of the image light entering the upper left and right ends of the screen increases. Incident-side prisms (10... | 10/14/2008 |
| 7433122 | Front-projection screen with subsurface diffusion targets An apparatus, system, and method for a front-projection screen having a subsurface diffusion target are disclosed herein. ... | 10/07/2008 |
| 7423809 | Reflective screen A reflective screen is provided. A reflective screen that displays an image by reflecting light from a light source includes a reflective sheet, a light-scattering sheet, and an adhesive layer bonding the reflective sheet to the light-scattering sheet. The adhesive ... | 09/09/2008 |
| 7417794 | 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... | 08/26/2008 |
| 7408709 | Screen and method for manufacturing the same A screen for displaying an image by projection light includes: a selectively reflective layer having reflection properties with respect to light in a specific wavelength region corresponding to the projection light, and having absorption properties with respect to l... | 08/05/2008 |
| 7403335 | Screen, Fresnel lens sheet used for the same, and image display apparatus using the same The present invention provides a screen suitable for reducing the longitudinal dimension of a set. The present invention includes two prism sections. One is a totally reflective prism section (10) provided at the image generation source side of a Fresnel lens... | 07/22/2008 |
| 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 |
| 7365906 | Projection screen and projection system containing same A projection screen capable of sharply displaying an image even under bright environmental light with high image visibility. A projection screen has a polarized-light selective reflection layer with a cholesteric liquid crystalline structure, capable of selectively ... | 04/29/2008 |
| 7362943 | Polymeric photonic crystals with co-continuous phases An optical element is formed by co-extruding to have an arrangement of polymer scattering fibers within a polymer matrix. The scattering fibers lie substantially parallel to a first axis. The scattering fibers are arranged at positions across the cross-section of th... | 04/22/2008 |
| 7357558 | LCD display backlight system with improved color mixing and efficiency A LCD display backlight system with improved color mixing and efficiency comprises a reflective surface, a plurality of light sources mounted on the reflective surface, a plurality of fractional wave plates and a reflective polarizer. The plurality of fractional wav... | 04/15/2008 |
| 7356229 | Reflective polarizers containing polymer fibers A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is... | 04/08/2008 |
| 7354158 | Transmission-type screen and projection-type display device Exemplary embodiments provide a transmission-type screen and a projection-type display device, which are superior in contrast. Exemplary embodiments provide a transmission-type screen characterized by including a display plane; a front side layer; and a backside lay... | 04/08/2008 |
| 7356211 | Lighting system A stereoscopic display device is provided. The stereoscopic display device includes an optical waveguide member and a first main surface and a second main surface. The first and second main surfaces face each other. A first light path changing member is provided on ... | 04/08/2008 |
| 7354164 | Dispersing and polarizing light filter An optical filter includes an array of light-transmissive beads in a matrix of opaque binder that surrounds one portion of the beads to provide light entrances and exit apertures for incident light to pass substantially only through the beads. A polarizing layer is ... | 04/08/2008 |
| 7349155 | Screen having a layer of reflectors A reflector comprises a core and a first dielectric mirror formed over at least a portion of the core to reflect light having a preselected wavelength. The reflector may comprise a plurality of dielectric mirrors formed concentrically over the first dielectric mirro... | 03/25/2008 |
| 7349154 | Reflection type screen The reflection type screen comprises a reflection layer which is disposed on the opposite side to the projected light incident side of the screen, a horizontal view angle increasing layer which is disposed on the light incident side of the reflection layer, and a di... | 03/25/2008 |
| 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 |
| 7339758 | Etching method, a substrate with a plurality of concave portions, a microlens substrate, a transmission screen and a rear projection An etching method is disclosed. The etching method includes the steps of: preparing a substrate 5; forming first and second films 61, 62 each having predetermined internal stress on the substrate so that the internal stresses of the first and second fi... | 03/04/2008 |
| 7336895 | Diffuser panel and optical apparatus which uses this diffuser panel A diffuser panel having a plurality of micro lenses arranged on a surface of a substrate, a half or more of these micro lenses are in a shape which has (2n+1) angles. This diffuser panel provides rays which are uniformly diffused within a diffusion area and a light ... | 02/26/2008 |
| 7329004 | Rear projection display device A rear projection display device improves the brightness by improving the utilization efficiency of image light projected to a screen from slantly below. At least a green component of the image light is P-polarized to the screen (7). Therefore, reflection of ... | 02/12/2008 |
| 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 |
| 7286101 | Image display method and image display system Images are displayed on an image display screen by projection light for displaying images onto the image display screen. The image display screen is integrally formed with diffusion/reflective parts, which reflect the projection light on a side of the image display ... | 10/23/2007 |
| 7277227 | Fresnel lens sheet, transmission screen provided with the same and rear projection display A Fresnel lens sheet has an entrance surface (1a) and an exit surface (1b). A plurality of prisms (2) each having a refraction surface (3) and a total-reflection surface (4) are formed on the entrance surface (1 | 10/02/2007 |
| 7262916 | Backlight module and brightness enhancement film thereof A backlight module includes a light source, a light guide disposed on one side of the light source, a reflector disposed under the light guide, a lower diffuser disposed on the light guide, and a brightness enhancement film, which is disposed on the lower diffuser a... | 08/28/2007 |
| 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 |
| 7234817 | Liquid crystal projection system A projection system is provided. The projection system comprises a projector for producing a polarized light for projecting an image and a projection screen on which the image projected by the projector is visualized. The polarization plane of the polarized light an... | 06/26/2007 |
| 7187498 | Surveillance window A surveillance window including at least one set of linear polarizer and quarter-waveplate and a reflecting surface. The surveillance window appears dull and opaque to a subject, while allowing a relatively high percentage of light to be transmitted to an observer. ... | 03/06/2007 |
| 7173761 | Fresnel lens sheet The present invention provides a Fresnel lens sheet capable of successfully avoiding the “collapse”, “abrasion” and “moire” problems. A Fresnel lens sheet constitutes, together with a lenticular lens sheet, a rear projection screen, which is mounted in t... | 02/06/2007 |
