Rear Projection Screen Patents (Class 359/453)
  • Patent number: 10222521
    Abstract: Provided is a sheet-form transparent molding for use for a transparent screen, satisfying both visibilities of a projected light and a transmitted light by anisotropically scattering and reflecting the projected light emitted from a light source. A sheet-form transparent molding according to the present invention comprises a transparent light scattering layer comprising a resin and bright flake-form microparticles.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: March 5, 2019
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Akira Matsuo, Suzushi Nishimura, Satoru Inoue, Kousuke Yamaki
  • Patent number: 10061150
    Abstract: A light control film includes a light shielding layer and a light diffusion portion, and, when an area of a part where the light shielding layer is in contact with one surface of the base material is set to S1, and an area of a part where a low refractive index portion is exposed between light incidence end surfaces is set to S2, the light shielding layer and the light diffusion portion are formed so as to satisfy (S1?S2)/S1×100?50.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 28, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Emi Yamamoto, Tsuyoshi Maeda, Toru Kanno
  • Patent number: 9977322
    Abstract: To provide a film or sheet and a screen excellent in visibility of a projected image, in see-through properties when an image is not projected and in bending resistance. A single-layer film or sheet comprising a fluororesin, a light-scattering agent and a light absorbing agent, characterized in that the light-scattering agent is at least one light-scattering agent selected from the group consisting of a titanium oxide-containing pigment, a zinc oxide-containing pigment and a cerium oxide-containing pigment, and the content thereof is from 0.01 to 0.175 g/m2, and the light absorbing agent is at least one light absorbing agent selected from the group consisting of carbon black, a black interference aluminum pigment, black iron oxide and titanium black, and the content thereof is from 0.0005 to 0.035 g/m2.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: May 22, 2018
    Assignee: Asahi Glass Company, Limited
    Inventors: Yoshiaki Higuchi, Seigo Kotera
  • Patent number: 9952494
    Abstract: A video projecting structure includes a substrate having a visible light transmittance greater than or equal to 5% and less than or equal to 90%, a reflectivity greater than or equal to 5% and less than or equal to 90%, and a front haze less than or equal to 30.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: April 24, 2018
    Assignee: Asahi Glass Company, Limited
    Inventors: Yukihiro Tao, Kenta Sekikawa, Hitoshi Tsujimura, Kenichi Ebata, Yuriko Kaida
  • Patent number: 9891515
    Abstract: A projection screen including a substrate, Fresnel structures and a protective layer is provided. The Fresnel structures are located on a surface of the substrate facing an image-source side and arranged along a first direction. Each Fresnel structure extends along a second direction. The protective layer has a first surface facing the image-source side. The first surface has optical microstructures. The optical microstructures are orthographically projected on a reference plane to form orthographic projection patterns. Each of the orthographic projection patterns has a first axis and a second axis substantially perpendicular to each other. The first axis passes through two end points having a maximum distance in the first direction. The second axis passes through two end points having a maximum distance in the second direction. Each of the orthographic projection patterns is symmetry to at least one of the first axis and the second axis.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: February 13, 2018
    Assignee: Coretronic Corporation
    Inventors: Hung-Ta Chien, Fang-Hsuan Su, Fu-Chiang Hsu
  • Patent number: 9864110
    Abstract: A light diffuser and its use are provided, which not only reduces a color change in a source light when the light diffuser is disposed on an optical path of a light source, but also has a good light transmission property and a good light diffusion property. The light diffuser contains a thermoplastic resin and transparent particles added thereto. The total light transmittance of the light diffuser is 75% or more. The degree of dispersion of the light diffuser is 2° or more, the degree of dispersion being defined as a transmission angle at which a light transmittance is 50% of a rectilinear light transmittance when light is emitted to a surface of the light diffuser in a direction normal to the surface. The difference between the rectilinear light transmittance at 460 nm and the rectilinear light transmittance at 580 nm of the light diffuser is 0.96% or less.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: January 9, 2018
    Assignee: SEKISUI PLASTICS CO., LTD.
    Inventors: Kazuki Machida, Fumitaka Ishimori
  • Patent number: 9846356
    Abstract: Provided is a film for a transparent screen which can clearly display merchandise information, advertisement, or the like on a transparent partition or the like by projection without compromising the transmission visibility. A film for a transparent screen according to the present invention includes: a resin layer; and inorganic particles at least a portion of which is contained in an aggregated state in the resin layer, wherein primary particles of the inorganic particles have a median diameter of 0.1 to 50 nm and a maximum particle size of 10 to 500 nm, and the content of the inorganic particles is 0.015 to 1.2% by mass with respect to the resin.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: December 19, 2017
    Assignees: TOKYO INSTITUTE OF TECHNOLOGY, JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Junji Watanabe, Koichi Sakajiri, Kousuke Yamaki, Suzushi Nishimura, Akira Matsuo
  • Patent number: 9778555
    Abstract: A multi-layer projection screen includes a stray light rejection layer and a lens array. The stray light rejection layer includes an array of pillar structures, wherein each pillar structure of the array of pillar structures includes an entrance aperture, an exit aperture, a pathway extending from the entrance aperture to the exit aperture, and a side wall surrounding the pathway. The lens array is optically aligned to the array of pillar structures. The stray light rejection layer blocks display light received from the lens array having an oblique trajectory that is greater than a threshold angle from a first trajectory.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: October 3, 2017
    Assignee: X Development LLC
    Inventors: Adam E. Norton, Serge J. Bierhuizen, Andrei S. Kazmierski
  • Patent number: 9772430
    Abstract: A light control film (light control member) includes a light transmissive base, a plurality of light shielding portions scattered over one surface of the base, and a light diffusing portion formed on the one surface of the base in a region other than regions in which the light shielding portions are formed. The light diffusing portion has a light exit end face and a light incident end face having a larger area than the light exit end face, and the height of the light diffusing portion is greater than the thickness of the light shielding portions. At least part of the opening of at least some of a plurality of air-cavities has a protrusion which is formed of a portion of the light diffusing portion that projects toward the inner side of the opening.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: September 26, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Emi Yamamoto, Toru Kanno, Tsuyoshi Maeda
  • Patent number: 9651720
    Abstract: A glass article including: at least one anti-glare surface having haze, distinctness-of-image, surface roughness, and uniformity properties, as defined herein. A method of making the glass article includes, for example: depositing deformable particles on at least a portion of a glass surface of the article; causing the deposited deformable particles on the surface to deform and adhere to the surface; and contacting the surface having the adhered particles with an etchant to form the anti-glare surface. A display system that incorporates the glass article, as defined herein, is also disclosed.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: May 16, 2017
    Assignee: Corning Incorporated
    Inventors: Charles Warren Lander, Timothy Edward Myers, Kelvin Nguyen, Alan Thomas Stephens, II
  • Patent number: 9625624
    Abstract: Provided is a color improving film comprising a base layer, a high refractive light diffusion layer including an organic light diffuser on the base layer, a high refractive resin layer on the high refractive light diffusion layer, and a low refractive resin layer in which a lenticular lens pattern is formed on the high refractive resin layer, wherein the organic light diffuser comprises particles coated with a black pigment and non-coated particles, and wherein the lenticular lens pattern is formed on a surface of the low refractive resin layer facing the high refractive resin layer. According to the color improving film, a change in color sensitivity according to an angle of view is small, an external light reflectivity is low, and a light transmittivity and a light diffusibility are substantially improved. Also, the method of preparing the color improving film has excellent processiblity and economic efficiency.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: April 18, 2017
    Assignees: Samsung Electronics Co., Ltd., Cheil Industries Inc.
    Inventors: Young Oh, Hyun-min Kim, Young-hyun Ju, Seung-man Choi, You-min Shin, Hong-shik Shim, Chul-ho Jeong, Eun-young Cho
  • Patent number: 9612518
    Abstract: A screen is disclosed. The screen includes an angle magnifying unit and a deflecting unit. The angle magnifying unit has a first lens assembly and a second lens assembly. The first and second lens assemblies are aligned along a first direction. The first lens assembly has a plurality of first lenses, and each of the first lenses has a first radius of curvature. The second lens assembly has a plurality of second lenses, and each of the second lenses has a second radius of curvature. The magnification of the angle enlarging unit is the ratio of the first radius of curvature to the second radius of curvature. Furthermore, the deflecting unit is disposed between the first lens assembly and the second lens assembly. The deflecting unit has a plurality of deflecting prisms that aligned along a second direction. The second direction is perpendicular to the first direction.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: April 4, 2017
    Assignee: Delta Electronics, Inc.
    Inventor: June-Jei Huang
  • Patent number: 9568657
    Abstract: A light guide plate for a backlight. The light guide plate includes: a light source unit for generating light; a light guide plate proximate to the light source unit and including an upper surface and a lower surface; and a light emission pattern configured to diffuse a portion of the light directed toward an image display panel, and a first straight pattern configured to channel the light along a direction substantially parallel to a direction of propagation of the light generated by the light source unit, both the light emission pattern and the first straight pattern being disposed on one of the upper surface and the lower surface of the light guide plate, in which the first straight pattern has peaks and valleys formed in alternating and repeating manner in a direction substantially perpendicular to a direction of propagation of the light generated by the light source unit.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: February 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Young Song, Seong-Yong Hwang, Joong-Hyun Kim, Sang-Won Lee, Jin-Sung Choi, Ju-Hwa Ha, Jin Seo, Yong-Kyu Kang
  • Patent number: 9529174
    Abstract: The present invention provides a diffuser plate assembly. The diffuser plate assembly includes a first diffuser plate and a second diffuser plate located under the first diffuser plate, and a gap is formed therebetween. Correspondingly, the present invention also provides a backlight comprising the diffuser plate assembly and a display device comprising the backlight. Compared with the prior art, the diffuser plate assembly provided by the present invention can enable light emitted by a light source to irradiate a display panel more uniformly, and the thicknesses of the backlight and the display device can be reduced.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: December 27, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Hongli Zhu, Lili Jia, Zhidan Zhang, Daekeun Yoon
  • Patent number: 9519206
    Abstract: A multi-layer projection screen includes a transparent substrate having first and second sides, a stray light rejection layer, and a lens array. The stray light rejection layer is disposed across the first side of the transparent substrate. The stray light rejection layer includes an array of pillar structures, wherein each pillar structure of the array of pillar structures includes an entrance aperture, an exit aperture, a substantially transparent pathway extending from the entrance aperture to the exit aperture, and an opaque side wall surrounding the transparent pathway. The lens array is disposed across the second side of the transparent substrate and optically aligned to the array of pillar structures. The stray light rejection layer blocks display light received from the lens array having an oblique trajectory that is greater than a threshold angle from a normal of the second side of the transparent substrate.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: December 13, 2016
    Assignee: X Development LLC
    Inventors: Adam E. Norton, Serge J. Bierhuizen, Andrei S. Kazmierski
  • Patent number: 9500811
    Abstract: Disclosed is an optical circuit including a transparent plate, which is light-transmittable, and a light shielding plate, which is adhered to the transparent plate with an adhesive and has an opening through which incident light passes, and in which the aspect facing to the opening has, on the side opposite to the transparent plate, projections in an overhang shape toward the center of the opening.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: November 22, 2016
    Assignees: NTT Electronics Corporation, Nippon Telegraph and Telephone Corporation
    Inventors: Hiroshi Tomita, Kenji Kobayashi, Naoki Ooba, Toru Miura
  • Patent number: 9494724
    Abstract: A liquid crystal display device includes a liquid crystal panel, a pair of polarizing layers, a lighting device, and an output angle control member. The liquid crystal panel includes a pair of substrates, and a liquid crystal layer. The liquid crystal layer is interposed between the pair of substrates. The pair of polarizing layers is arranged on a light input side and a light output side of the liquid crystal layer. The lighting device is arranged on the light input side of the liquid crystal panel and radiates light toward the liquid crystal panel. The output angle control member is arranged on the light output side of the liquid crystal panel and controls an output angle of light which is output from the liquid crystal panel.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: November 15, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Emi Yamamoto, Tsuyoshi Maeda, Toru Kanno, Tsuyoshi Kamada, Shohei Katsuta
  • Patent number: 9348066
    Abstract: Provided are a color display film and a method for manufacturing the same, and a display apparatus. The color display film includes a base material layer, a high-refractive resin layer on which an optical pattern is formed, and a low-refractive light diffusion layer including a light diffuser in a stacked configuration. The optical pattern is formed in one surface of the high-refractive resin layer facing the low-refractive light diffusion layer. The method of manufacturing a color display film includes forming a high-refractive resin layer by coating a high-refractive transparent resin on one surface of a base material layer and forming an imprinted optical pattern on the coated high-refractive transparent resin, forming a low-refractive light diffusion layer by dispersing a light diffuser into a low-refractive transparent resin, and bonding one surface of the low-refractive light diffusion layer on a surface on which the optical pattern is formed.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: May 24, 2016
    Assignees: Samsung Electronics Co., Ltd., Samsung Corning Precision Materials Co., Ltd., Cheil Industries Inc.
    Inventors: Young Oh, Hyun-min Kim, Young-hyun Ju, Seung-man Choi, You-min Shin, Hong-shik Shim, Chul-ho Jeong, Eun-young Cho
  • Patent number: 9341345
    Abstract: A light diffusion member includes a light-transmissive base, a plurality of light diffusion portions, a connecting portion, and a light absorbing layer. The light diffusion portions are arranged on one surface of the base and have light-incident end surfaces each positioned on the side away from the base and having a larger area than a light-emergent end surface thereof. The connecting portion connects at least two adjacent ones of the plural light diffusion portions to each other, and is positioned near the light-incident end surfaces of the adjacent light diffusion portions. The light absorbing layer is formed on the one surface of the base in a region different from a region where the light diffusion portions are formed. A size from the light-incident end surface to the light-emergent end surface of the light diffusion portion is larger than a thickness of the light absorbing layer.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: May 17, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Emi Yamamoto, Toru Kanno, Tsuyoshi Maeda
  • Patent number: 9335449
    Abstract: A light control film, and light collimating assemblies and liquid crystal displays incorporating such light control films are described. The light control film includes alternating transmissive and absorptive regions, where the refractive index of each transmissive region is greater than the refractive index of each absorptive region. The absorptive regions form interfaces at angles that are close to the perpendicular to the light control film. A portion of the incident light intercepting the absorptive region undergoes Total Internal Reflection, and is transmitted through the film. The axial brightness of light passing through the film is increased, the brightness is more uniform within the viewing angle, and the viewing cutoff angle is sharpened.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: May 10, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Gary E. Gaides, Kenneth A. Epstein
  • Patent number: 9304232
    Abstract: Disclosed herein is a sheet comprising a polymeric material; light diffusing particles disposed in the polymeric material; and a non-random surface texture on a surface of the sheet; wherein the surface texture comprises hemispherical structures, partial hemispherical structures, ellipsoidal structures, immersed spherical beads, ellipsoidal beads, “bell-shape” bump, complex lens shape structures, pyramidal structures, reversed pyramidal structures, or combinations comprising at least one of the foregoing. The sheet has excellent hiding power and transmission at the same time and is suitable for LED light cover applications. The unit structures have an aspect ratio of 0.15 to 0.5 and a pitch of greater than or equal to 100 ?m.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: April 5, 2016
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Zhe Chen, Yafeng Sun, Adel Fawzy Bastawros
  • Patent number: 9244284
    Abstract: An optical light redirecting film that can be made by microreplication, and that is suitable for use in an autostereoscopic backlight or display, includes opposed first and second structured surfaces. The first structured surface includes lenticular features and the second structured surface includes prismatic features. In some cases, at least a first prismatic feature has a first prism optical axis that is tilted relative to a thickness axis of the film perpendicular to the film plane. In some cases, at least a first lenticular feature has a first lenticular optical axis that is tilted relative to the thickness axis. In some cases, the film may have a central film caliper (thickness) at a central portion of the film and an edge film caliper at a first edge portion of the film, the central film caliper being greater than the edge film caliper.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: January 26, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael J. Sykora, Robert L. Brott, John C. Schultz, Corey D. Balts
  • Patent number: 9122134
    Abstract: Disclosed are a display screen for an image display system capable of providing an image having a high contrast ratio in a bright room, and a method for manufacturing the same. The display screen for displaying thereon image light emitted from a projector includes a lens layer, and a reflective layer formed on the lens layer and configured to reflect the image light, wherein the lens layer and/or the reflective layer contain a black material.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 1, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Sungtae Kim, Wonki Cho, Byunggil Ryu, Wonseok Jeon
  • Patent number: 9013790
    Abstract: A projection screen includes a transparent substrate having a front side and a backside, a dark film disposed across the front side of the transparent substrate, an array of holes disposed through the dark film, a diffusing layer disposed between the transparent substrate and the dark film, and an array of lenses disposed across the backside of the transparent substrate. The array of lenses are aligned to focus display light incident through the array of lenses towards the array of holes and the diffusing layer diffuses the display light for emission out the array of holes as diffuse display light.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: April 21, 2015
    Assignee: Google Inc.
    Inventors: Andrei S. Kazmierski, Mary Lou Jepsen, Belle Fu
  • Patent number: 8995060
    Abstract: A head-up display device includes an image module, a substrate, and an optical film. The image module has an emitting source, wherein the emitting source transmits at least one image. The substrate is disposed corresponding to the image module. The optical film is disposed on the substrate and includes at least one transmission layer, wherein each transmission layer has a plurality of transmitting column structures obliquely arranged side by side, and a longitudinal direction of the transmitting column structure has a tilt angle with respect to a normal of the substrate. The at least one image is transmitted to the optical film, and the obliquely disposed transmitting column structures cause the at least one image to scatter on the optical film.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: March 31, 2015
    Assignee: National Applied Research Laboratories
    Inventors: Wen-Hao Cho, Bo-Huei Liao, Donyau Chiang, Cheng-Chung Lee
  • Patent number: 8988774
    Abstract: This projector includes a laser light generation portion, a projection portion scanning laser light, and a projection screen. The projection screen includes a lens member including a plurality of lens portions splitting the laser light and a diffusion member arranged to be opposed to the lens member, having an incident surface and a diffusion portion. The diffusion portion of the diffusion member is arranged at a position apart by a distance larger than the focal length of the lens member along an optical axis with respect to the optical principal surface of the lens member.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: March 24, 2015
    Assignee: Funai Electric Co., Ltd.
    Inventors: Hiroki Matsubara, Kenji Nagashima
  • Publication number: 20140240825
    Abstract: The invention realizes a screen in which the luminous intensity of scattered light emitted from the screen is made more uniform. The screen diffuses incident light that is irradiated from an incident surface and emits light from an emission surface that is opposite the incident surface. The screen is provided with: a first light-diffusing area (402) formed on the incident-surface side and provided with a mirror (403) that reflects a portion of the incident light (404), and a second light-diffusing area (401) formed on the emission-surface side and that scatters incident light that includes the light reflected from the mirror.
    Type: Application
    Filed: July 10, 2012
    Publication date: August 28, 2014
    Applicant: NEC CORPORATION
    Inventor: Fujio Okumura
  • Publication number: 20140153090
    Abstract: The present application provides a projection system by which constraints placed on space use of a user can be reduced. The projection system includes: a projector and a screen. The screen includes a first film for transmitting image light incoming from the projector and a second film for transmitting the image light transmitted through the first film. A pattern for refracting or reflecting the image light toward the second film is formed on a light entrance face of the first film receiving the image light. The incident angle of the image light entering the first film is not less than 20 degrees.
    Type: Application
    Filed: August 22, 2012
    Publication date: June 5, 2014
    Inventors: Takashi Takenouchi, Fumio Karasawa, Toru Sasaki
  • Patent number: 8705133
    Abstract: A display system and method of producing images with high dynamic range are provided. The display system employs multiple light valves for projecting a portion of the image onto another.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 22, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: David F. Lieb, Andrew I. Russell
  • Patent number: 8649090
    Abstract: A rear-projection screen for an ultra short throw projector includes a diffusing member to diffuse incident light having a specific angular range (AR) corresponding to a hotspot area generated on the rear-projection screen, and to transmit incident light having an angular range other than the specific angular range (AR). The diffusing member is provided at an area of the rear-projection screen where light having smaller incidence angle with respect to the rear-projection screen strikes the rear-projection screen.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: February 11, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Nobuhiro Hosoi
  • Patent number: 8591038
    Abstract: A projection type image display apparatus in one aspect of the present invention includes an optical engine that projects an image; an image display screen that displays an image of projection light projected from the optical engine; a folding mirror that reflects the projection light projected from the optical engine toward the image display screen; and an optical system support member that holds the optical engine, a rear side part of the folding mirror and the image display screen. The image display screen holds a front side part of the folding mirror by an upper side part of the image display screen.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 26, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventor: Norichika Sugano
  • Patent number: 8564874
    Abstract: The present invention discloses a transmission mode switching device and a 2D/3D switchable display apparatus. The transmission mode switching device comprises a first substrate on which a first transparent electrode is configured, a second substrate on which a second transparent electrode is configured, and a transmission mode switching layer located between the first and second substrates and formed by materials with isotropic optical properties. The transmission mode switching layer is switched between a first transmission mode in which the direction of light propagation is not altered and a second transmission mode in which the direction of light propagation is altered in response to switching of the electric field applied between the first and second transparent electrodes. The transmission mode switching device of the present invention is suitable for multiple modes, with low power consumption.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: October 22, 2013
    Assignee: Infovision Optoelectronics (Kunshan) Co., Ltd.
    Inventor: Chaoping Chen
  • Patent number: 8542408
    Abstract: A display system and method of producing images with high dynamic range are provided. The display system employs multiple light valves for projecting a portion of the image onto another.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: September 24, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: David Foster Lieb, Andrew Ian Russell
  • Patent number: 8516728
    Abstract: Provided is a flexible display apparatus that includes: a flexible display apparatus including: a flexible display panel; a housing including an opening through which the flexible display panel enters and exits the housing; a cylinder disposed within the housing to coil and uncoil the flexible display panel; and a stretcher that selectively extends from the opening to support the flexible display panel, such that the flexible display panel is substantially planar when the flexible display panel is extended outside of the housing.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: August 27, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Youn Hwan Jung
  • Publication number: 20130215503
    Abstract: A rear-projection screen for an ultra short throw projector includes a diffusing member to diffuse incident light having a specific angular range (AR) corresponding to a hotspot area generated on the rear-projection screen, and to transmit incident light having an angular range other than the specific angular range (AR). The diffusing member is provided at an area of the rear-projection screen where light having smaller incidence angle with respect to the rear-projection screen strikes the rear-projection screen.
    Type: Application
    Filed: February 11, 2013
    Publication date: August 22, 2013
    Inventor: Nobuhiro HOSOI
  • Patent number: 8384995
    Abstract: A rear-type projection board apparatus (rear-surface projection-type video display apparatus), of new structure, having no necessity of a housing, being superior in portability, cheaply producible, comprises a transmission-type screen, being disposed within an interior space, under a condition of exposing both surfaces thereof in the space, and for transmitting a visual light projected onto a rear surface therethrough, so as to display it on a video display surface on a front surface, and a video projection apparatus (projector), being disposed at a predetermined position on a rear surface side of the transmission-type screen, and for projecting the visual light from a rear surface of the transmission-type screen, enlargedly, wherein the transmission-type screen has a Fresnel lens having Fresnel lens surfaces, covering over an entire light receiving surface for receiving the visual light, which is enlargedly projected from the video projection apparatus, whereby guiding the visual light received from the vide
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: February 26, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Koji Hirata, Hidehiro Ikeda, Toshihiko Matsuzawa, Tadashi Sato
  • Patent number: 8369012
    Abstract: 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 surface that varies according to the individual microsphere diameter. In another embodiment, the present invention relates to a projection film that has the attributes of variable gain within the single projection film. In another embodiment, the present invention relates to an exposed microsphere projection film construction that provides modification of the head-on and angular pattern of light transmission (gain).
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: February 5, 2013
    Assignee: Avery Dennison Corporation
    Inventor: Michael E. Hannington
  • Patent number: 8322060
    Abstract: A retractable double-sided banner stand has a base, two upright posts, a crossbar, and a single banner with graphic image(s) disposed on both sides of the banner. The base generally includes a housing, two housing end cap assemblies, a single core, and a retracting mechanism. The banner is wound around the core, and the retracting mechanism unwinds and winds the banner with respect to the core. The leading edge of the banner is attached to the crossbar, which is wider than the width of the banner. The banner stand has an erect upright mode for displaying the images(s), and a collapsed mode for transporting the banner stand. In the erect mode, the upright posts are retained in the base by means of a quick-release locking mechanism, the banner extends upwardly from the base, and the crossbar engages with, and is supported by, the upper portion of each of the upright posts.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: December 4, 2012
    Assignee: Skyline Displays, Inc.
    Inventors: Scott Parizek, Curtis H. Lindblom
  • Patent number: 8300311
    Abstract: The invention concerns a rear projection system in the form of a table consisting of at least one glass panel which has a diffusion coating containing hollow glass balls, whereas the hollow glass balls are arranged in a transparent or translucent binder matrix on the lower or upper surface of the glass panel and is illuminated from below with at least one projector having a projection field and that at least one projection image can be viewed by an observer at an observation angle of at least 176 degrees. The second embodiment involves a rear projection system in the form of a curved, two-dimensionally shaped glass panel having a diffusion coating containing hollow glass balls.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: October 30, 2012
    Assignee: Glasstech DOO
    Inventors: Mitja Jelusic, Alex Miletic
  • Patent number: 8284487
    Abstract: A large format tiled flexible projection display screen. The tiled modules of the screen each include a rear projection screen film adhered to a transmissive flexible substrate with an optically clear adhesive. When electronic content is projected onto the tiled projection screens, the electronic content is visible on a front surface side of the substrates.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: October 9, 2012
    Assignee: 3M Innovative Properties Company
    Inventor: Yufeng Liu
  • Patent number: 8206793
    Abstract: An apparatus and method for producing a screen is provided. The method includes propelling a quantity of paint comprising metallic flakes, such as aluminum flakes, toward the screen. The method also includes applying at least one magnetic field in a vicinity of the screen, wherein applying the at least one magnetic field causes at least one metallic flake in the quantity of paint to be oriented relative to the screen in a substantially preferred orientation, thereby producing a screen exhibiting beneficial projection qualities, such as brightness. The magnetic field(s) applied may be unsymmetric in the time domain of, for example, an AC component of the magnetic field.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: June 26, 2012
    Assignee: RealD Inc.
    Inventors: Josh Greer, Mel Siegel, Lenny Lipton, Matt Cowan
  • Patent number: 8208204
    Abstract: The invention relates to multi-layer composites for use as a screen, having at least three layers, with an inner diffusing layer and at least one substrate layer on either side. The diffusing layer contains small particles having a narrow particle size distribution that are refractive-index mismatched with the polymer matrix. The multi-layer acrylic composition is useful as a projection screen.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: June 26, 2012
    Assignee: Arkema France
    Inventors: Manuel A. Garcia-Leiner, Jack J. Reilly
  • Patent number: 8203786
    Abstract: Methods and apparatus for a display system include a frame and one or more screen panels. Each panel has an inwardly disposed face and an outwardly disposed face. An adhesive layer couples to respective portions of each inwardly disposed face. At least one of the adhesive layers couples the one or more screen panels to the frame.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: June 19, 2012
    Assignee: Texas Instruments Incorporated
    Inventor: Matthew G. Hine
  • Publication number: 20120099192
    Abstract: A window image projection screen includes a transparent case, including a transparent front element and a transparent rear element. A thin inner space formed between the front and rear elements is filled with fine water drops produced by ultrasonic vibration of water in a reservoir to selectively crease a screen for a projected image.
    Type: Application
    Filed: October 24, 2011
    Publication date: April 26, 2012
    Inventor: Hae-Yong CHOI
  • Patent number: 8139290
    Abstract: A two way mirror system usable for an advertisement device includes a half-mirror having a light transmission function and a reflection function. A logo plate in a shape of an engraving or pattern in relief or intaglio is provided on a front face thereof and a two way screen through which a rear projected image can be viewed from both a front and rear face is provided on a rear face thereof. A single advertising device thus provides a logo advertising using a logo plate and reflected outside light during the day and an image advertisement viewable outside during night time, with inside viewing with double the usual brightness of a reflecting screen.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: March 20, 2012
    Inventor: Hae-Yong Choi
  • Patent number: 8104895
    Abstract: A display system includes a projection screen and a projector. The projection screen includes a retarder plate between a polarizer and a transparent screen. The projector projects an image through the polarizer and the retarder plate onto the transparent screen. The image is visible from a first side of the transparent screen but invisible from a second side of the transparent screen because any light passing twice through the retarder plate is blocked by the polarizer.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: January 31, 2012
    Inventor: Cang V. Quach
  • Patent number: 8013848
    Abstract: An image display apparatus includes a light source; a light modulation element modulating illumination light coming from the light source on the basis of image data; an illumination area modification unit capable of reducing an illumination area for the light modulation element in order to illuminate a specific image-forming area in the image-forming area of the light modulation element; and an image display-processing unit having an illumination area control unit for controlling the illumination area modification unit and a resolution conversion unit for converting a resolution of the image data into a resolution corresponding to the specific image-forming area.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: September 6, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Yasunaga Miyazawa
  • Patent number: 8004760
    Abstract: Various embodiments related to rear-projection image display are disclosed. For example, one disclosed embodiment provides a projector for projecting an image and a screen configured to display the image. The screen comprises a filter layer having a light reception side and an image display side. The filter layer includes an array of trapezoidal transmissive elements and an array of trapezoidal absorption elements, where a wider base of each of the trapezoidal transmissive elements faces the light reception side of the filter layer, and where a wider base of each of the trapezoidal absorption elements faces the image display side of the filer layer.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: August 23, 2011
    Assignee: Microsoft Corporation
    Inventors: Zhiqiang Liu, Prafulla Masalkar, Karlton Powell
  • Patent number: 7946713
    Abstract: A display apparatus, comprises a filter unit 33 attached on an air inlet opening 28a, having such a filter 36 that a suction negative load generating at the air inlet opening 28a formed in an upper cabinet 3 comes to be smaller than the suction load generating at gaps 29a and 30a defined in the upper cabinet 3, when driving a cooling unit 18, for sucking an air from the upper cabinet 3 and discharging the air used for cooling into the upper cabinet 3, when cooling down optical parts, such as, display devices 15R, etc., and a polarizing plate 16R, etc., of an optic unit 9.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: May 24, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yuji Kishi, Nobuyuki Kaku
  • Patent number: 7922333
    Abstract: A projector includes a light diffusing unit that is vibratably provided to diffuse incident light by a vibration and to emit diffused light, the light diffusing unit having a unique resonance frequency, a vibration generating unit that has a piezoelectric element for vibrating the light diffusing unit, and a control unit that controls the vibration generating unit to vibrate the light diffusing unit at a frequency corresponding to the unique resonance frequency of the light diffusing unit. An image is displayed using the diffused light emitted from the light diffusing unit.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: April 12, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Hidehiro Akahane, Eiji Morikuni