Rear Projection Screen Patents (Class 359/460)
  • Patent number: 10317788
    Abstract: The present invention relates to a holographic outdoor screen and, particularly, to an outdoor air-permeable dot screen comprising: entwined yarn which reduces wind resistance and enables a large image to be projected outdoors; a plurality of dots which are formed by knotting the entwined yarn at pre-set intervals so that light projected from an imaging device forms a diffused reflection; and through-holes which are formed between the dots in order to allow wind to permeate and light to scatter.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 11, 2019
    Inventor: Jae Ha Lyu
  • Patent number: 10274710
    Abstract: A rear-projection display system and a rear-projection screen are provided. The system includes a projector, N light path turning systems, and a rear-projection screen, wherein the rear-projection screen includes a collimation lens layer including a target region and a Fresnel lens region; the projector is configured to emit first projected light which is incident directly onto the Fresnel lens region, and emit second projected light which is incident onto the N light path turning system; and the N light path turning systems are configured to receive the second projected light from the projector, and to have the second projected light incident onto the target region at a first angle less than the emitting angle of the second projected light.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: April 30, 2019
    Assignees: Hisense Co., Ltd., Hisense USA Corporation, Hisense International Co., Ltd.
    Inventor: Fei Zhao
  • Patent number: 10131795
    Abstract: This disclosure relates to the field of projection display technology, and particularly to a projection screen and a projection display system so as to improve the uniformity of brightness throughout the projection screen. There is an anti-reflection coating arranged in a target area on a light incidence side surface of the projection screen to increase transmittivity in the target area, where the target area refers to an area where an incidence angle of projected light beams on the projection screen is above an angle threshold, and the projected light beams are light beams emitted by a projector.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: November 20, 2018
    Assignees: Hisense Co., Ltd., Hisense USA Corporation, Hisense International Co., Ltd.
    Inventor: Fei Zhao
  • Patent number: 9939564
    Abstract: This light-diffusing member includes a light-transmissive substrate, a plurality of wavelength-controlling layers formed on one surface of the light-transmissive substrate, and a light-diffusing portion formed on the one surface of the light-transmissive substrate in a region other than a region where the wavelength-controlling layers are formed.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: April 10, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Emi Yamamoto, Yuhsuke Tsuda, Tsuyoshi Maeda, Yasushi Asaoka, Shohei Katsuta
  • Patent number: 9810943
    Abstract: Parallax in an optical device is reduced by apply one or a combination of several disclosed techniques, including reduced solid angle or increased collimation of light sources, increased diffusion/scattering at an output of the device, and/or reflective structures for collimation and containment of reflected light. The techniques are advantageously applied to a backlight LCD display, and particularly to high dynamic range dual modulation displays.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: November 7, 2017
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Vincent Kwong, Helge Seetzen, Gregory John Ward
  • Patent number: 9766535
    Abstract: An immersive display system is disclosed that includes screens configured to mitigate reduction in contrast ratio due at least in part to peripheral light incident on the screens. The immersive display system includes at least two screens and at least two projector systems. The screens have a multi-layered structure configured to selectively reflect light in narrow wavelength bands. Each screen is configured to strongly diffusely reflect light in narrow wavelength bands that are different from the wavelength bands reflected by other screens in the immersive display system. Projector systems can be configured to provide light to associated screens in the narrow wavelength bands reflected by those screens.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: September 19, 2017
    Assignee: Barco, Inc.
    Inventors: Patrick Candry, Bart Maximus, Scott Stremple
  • Patent number: 9285660
    Abstract: The embodiments presented herein describe integrating a projector in a book to display images or animations on one or more pages of the book. Specifically, the book may include a projector that is arranged in the form factor of the book. The book may also contain one or more mirrors that reflect an image from the projector onto a desired location on a page in the book. In one embodiment, the image is projected from the rear of the book onto a back side of the page that is opposite the front side of the page facing the user. So long as the material of the page is sufficiently translucent, the image projected on the back side of the page will be visible to the user looking at the front side of the page.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: March 15, 2016
    Assignee: Disney Enterprises, Inc.
    Inventors: Eric C. Haseltine, Katie M. Bassett
  • Patent number: 9064830
    Abstract: An organic light emitting diode (OLED) display includes a transmission region and a reflection region. When external light is incident on the OLED display, a reflection rate of the external light of the reflection region is proportional to luminance of the transmission region. The transmission region includes a pixel electrode, an organic emission layer, and a common electrode. The transmission region is configured to transmit light emitted from the organic emission layer to a first direction. The reflection region includes a control electrode, liquid crystal capsules, and the common electrode. The reflection region is configured to reflect the external light to the first direction.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: June 23, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Ik Lim, Man-Seob Choi
  • Publication number: 20150138627
    Abstract: A projection or back-projection method, according to which a glazing including two main external surfaces, used as projection or back-projection screen, and a projector are available. The method includes projecting, by virtue of the projector, images viewable by spectators onto one of the sides of the glazing. The glazing includes a transparent layered element exhibiting diffuse reflection properties.
    Type: Application
    Filed: May 23, 2013
    Publication date: May 21, 2015
    Inventors: Marie-Virginie Ehrensperger, Patrick Gayout, Emmanuel Mimoun, Etienne Sandre-Chardonnal
  • 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: 9013791
    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: Grant
    Filed: July 10, 2012
    Date of Patent: April 21, 2015
    Assignee: NEC Corporation
    Inventor: Fujio Okumura
  • 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: 20140340744
    Abstract: A three dimensional (3D) object with a rear projection (RP) surface. The 3D object includes an RP element, which behaves as an RP substrate or surface. A structural portion of the 3D object has a first thickness, and the RP element has a second thickness that is less than about one half of the first thickness. The RP element is formed of a translucent white plastic for example, such that it is translucent to provide an RP element integrally formed with an adjacent structural element which is opaque with or without additional coating or treatment.
    Type: Application
    Filed: August 1, 2014
    Publication date: November 20, 2014
    Applicant: DISNEY ENTERPRISES, INC.
    Inventor: GILLES J. MARTIN
  • Patent number: 8864317
    Abstract: A projection display satisfies formulas {(4FR?)/(W?TphR)}?0.015 and W??0.5, where: F is an F-number of a projection lens; W? is a diagonal size (inch number) of a light modulation element; ph is a pixel count in one side direction of the light modulation element; T is a throw ratio of the projection display (=a projection distance s/a distance L in the one side direction of a projected image on a projection plane); R is a radius of an exit pupil of the projection lens; I is an integrated light quantity obtained by, in a light quantity distribution in the exit pupil, radially integrating the light quantity up to the radius R; and I?(=I/2) is an integrated light quantity obtained by, in the light quantity distribution in the exit pupil, radially integrating the light quantity up to a predetermined radius R? about barycenter of the light quantity distribution.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 21, 2014
    Assignee: Sony Corporation
    Inventor: Toshifumi Yasui
  • Patent number: 8861079
    Abstract: A rear projection display screen, including a film having a surface facing the back of the screen including ridges having a triangular cross-section defining prisms, wherein at least a wall of each of said ridges has an inclination such that the angle of incidence, on said wall, of a light ray normal to the display is equal, to within 5 degrees, to the Brewster angle of the surface of separation formed by said wall.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: October 14, 2014
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventor: Umberto Rossini
  • Patent number: 8827460
    Abstract: A projector device includes an acquisition unit configured to acquire an image from an image pickup unit that picks up the image on a projection side of a transmissive type screen to which a display image is projected by a projector; a detection unit configured to detect a position where a luminance is changed on the acquired image; and an output unit configured to output the position on the acquired image where the change in luminance is detected.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: September 9, 2014
    Assignee: Fujitsu Limited
    Inventors: Mineo Moribe, Shinichiro Mori, Yuichi Hanada, Takahiro Umada
  • Patent number: 8820945
    Abstract: A projector includes a lens driving section that drives a lens section having a projection lens, an accepting section that accepts first control value indication information indicating a first control value including a drive instruction value of the lens section, a determining section that determines whether a drive instruction direction for the lens section is a first drive direction that is same as the last drive direction or a second drive direction that is different from the last drive direction, and a control section that drives the lens section by using a second control value whose drive instruction value is greater than the drive instruction value of the first control value in case that the drive instruction direction is the second drive direction.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: September 2, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Shinichi Tsukagoshi
  • 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
  • Patent number: 8783873
    Abstract: Provided is an electronic image display and control system comprising in various embodiments a microdisplay video projector that projects a high quality color image from a non-CRT image source onto a diffused but transmissive optical projection screen that is optically coupled with and viewable through a biocular adapted to this purpose. Systems are disclosed that are adapted to be mechanically coupled with a user to prevent relative movement between the biocular and the user, for instance in tactical applications. Closed-loop control electronics are provided for automatically controlling the brightness and chromaticity of the image.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: July 22, 2014
    Assignee: Palomar Display Products, Inc.
    Inventors: Chris Weinold, Richard O'Hara, Gary L. Timmerman, Jeffrey A. Kovell
  • Patent number: 8755115
    Abstract: A 3D image projection system has a display screen having an array of pixels, an array of pixel pyramids associated with the array of pixels, and a projector configured to project light onto the display screen.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: June 17, 2014
    Assignee: Thomson Licensing
    Inventor: Youngshik Yoon
  • Patent number: 8678598
    Abstract: A system for displaying an anamorphic image on a viewing surface comprises a screen having a viewing surface and an image source configured to display the anamorphic image on the viewing surface such that an image viewed on the viewing surface appears undistorted from a viewing point. In addition, the system may also include a reflective lens having a convex exterior surface and a refractive lens having a plurality of surfaces to redirect light toward an image capture device. Further, the system may include an image conversion module for converting a non-anamorphic image into the anamorphic image suitable for displaying on the viewing surface and a selected portion of the anamorphic image into at least one non-anamorphic image.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: March 25, 2014
    Inventor: Frank William Harris
  • Patent number: 8675061
    Abstract: A biocular display system is provided for use with a transmissive micro-LCD display and a biocular lens, where the biocular system includes a relay lens that can transfer a digital image from the transmissive micro-LCD display to a micro-resolution screen surface where a micro-diffusion surface is applied to a single planar transparent substrate that has a smooth surface on a side opposite the micro-diffusion surface, and the micro-diffusion surface has at least some surface features that can diffuse the light passing therethrough at greater than a 60-degree diffusion angle.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: March 18, 2014
    Inventor: Richard D. Balentine
  • Patent number: 8674933
    Abstract: An integrated system comprising both imaging and computing capabilities comprises a light valve and a CPU, as well as other functional members for performing computing and imaging.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: March 18, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Wei-Yan Shih, Henry W. Neal, Michael McCormick, Paul Gerard Barker
  • Publication number: 20140063353
    Abstract: A system for projecting content onto a shaped screen and highlighting particular portions of the content. The system includes a projector configured for projecting content having a particular shape and a rear projection screen for receiving and displaying the projected content. The rear projection screen has a shape substantially conforming to the particular shape of the content. The system is configured to increase or maximize an illumination of the projected content in a particular portion of the rear projection screen compared with the projected content in other portions of the screen. The increased illumination can be used to highlight the projected content in the particular portion for digital merchandising or other uses.
    Type: Application
    Filed: September 5, 2012
    Publication date: March 6, 2014
    Inventors: John C. Schultz, Quinn D. Sanford, Nicholas A. Johnson
  • 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: 8599483
    Abstract: A system for projecting content at an angle to a rear projection screen. The system includes a projector configured for projecting changeable electronic content and a rear projection screen for receiving the projected content at an angle and displaying the projected content. The rear projection screen includes a turning film having prisms facing toward or away from the projector. For prisms facing toward the projector, a protective film covers the turning film. When the projected content is displayed on the rear projection screen, the content has a substantially uniform appearance.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: December 3, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Brian T. Weber, Rolf W. Biernath, John C. Schultz, Gary T. Boyd
  • 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: 8567954
    Abstract: A 3D display system using a planar sheet of mist or water droplets as a rear projection screen. The system includes a screen generation assembly with a nozzle configured to convert supply water into a screen of water droplets. The screen is substantially planar and has a front surface facing a viewing area and an opposite rear surface. The display system includes a projection assembly projecting 3D content onto the rear surface. The projection assembly includes a first projector projecting left eye images and a second projector projecting right eye images. The 3D content may be provided using polarization or other 3D technology. For example, the first projector includes a first interference filter and the second projector includes a second interference filter differing from the first interference filter, whereby the left and right eye images are presented concurrently on the rear surface with differing bands of the visible color spectrum.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: October 29, 2013
    Assignee: Disney Enterprises, Inc.
    Inventors: Erik M. Koehler, Justin A. Sykes
  • Patent number: 8553325
    Abstract: The transmission type screen includes: a Fresnel lens screen (20); and an image display element (30), in which the Fresnel lens screen includes: a Fresnel optical element (21) including a prism formed on an incident surface side as seen from the emitter; and a first light diffusion unit (22) for diffusing an image light passing through the Fresnel optical element, and the image display element includes: a lens element (40) for spatially dividing the image light from the Fresnel lens screen and changing a direction of the image light; a birefringent layer (90) provided at a subsequent stage of the lens element, for mixing image light obtained by spatial division; and a second light diffusion unit (60) provided at a subsequent stage of the birefringent layer, for diffusing the image light passing through the birefringent layer.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: October 8, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takao Endo, Yuzo Nakano
  • Patent number: 8526108
    Abstract: Provided are diffused but transmissive optical image projection screens and methods of their manufacture, including screens comprising acetal polymers such as polyoxymethylene. Such screens may be used in various applications, including but not limited electronic image display and control system comprising in various embodiments a microdisplay video projector that projects a high quality color image from a non-CRT image source onto a diffused but transmissive optical projection screen that is optically coupled with and viewable through a biocular adapted to this purpose. Systems are disclosed that are adapted to be mechanically coupled with a user to prevent relative movement between the biocular and the user, for instance in tactical applications. Closed-loop control electronics are provided for automatically controlling the brightness and chromaticity of the image.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: September 3, 2013
    Assignee: Palomar Display Products, Inc.
    Inventors: Chris Weinold, Richard O'Hara
  • 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: 8403494
    Abstract: An image formed on a reflecting optical modulator is magnified by a projection optical system and projected on a backside of a transmission-type screen. The projection optical system is constituted so that a product of an F-number and a projection magnification of the projection optical system is less than 400.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: March 26, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kuniko Kojima, Hayato Takeuchi, Tomohiro Sasagawa, Yuzo Nakano
  • 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: 8337025
    Abstract: A projection type display device includes a image displaying element having image display areas for displaying a plurality of images respectively, a projection optical system having an emitting part for emitting projection light flux to the image display areas of the image displaying element, and a plurality of screens for displaying projected images by the projection light flux transmitted through the image display areas of the image displaying element. In the projection type display device, the image display areas are formed in respective areas in the image displaying element independent of each other. The projected images on the screens correspond to the image display areas, respectively. Each of the screens is arranged in such a position that the each of the screens is not overlapped with shadows of the other screens which are produced since the projection light flux is emitted from the emitting part to the screens.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: December 25, 2012
    Assignee: JVC Kenwood Corporation
    Inventors: Manabu Kobayashi, Ryusaku Takahashi, Toshitaka Murata, Takatsugu Aizaki, Masahiko Miyake, Hironobu Fukutomi
  • Patent number: 8328368
    Abstract: Miniature projection devices will enable the use of common household objects as the projection screen for still and moving images. This application describes a set of techniques and embodiments for implementing image projection inside a lamp such as a table or wall lamp and provides techniques for dealing with the unique physical attributes of lamps such as the shape of the lamp and the bright source of light that would tend to wash out the projected image. In addition, the invention presents a series of novel embodiments that respond changes in the environment to enable an immersive user experience and operation as a pet entertainment device.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: December 11, 2012
    Assignee: AccuVein Inc.
    Inventor: Vincent Luciano
  • Patent number: 8313199
    Abstract: A projection display system comprising a projection display unit including a light source, an image display element, a lighting optical system irradiating a beam of light on the image display element, and a projection optical system projecting an image light from the image display element toward a screen. The projection optical system including a lens group composed of a plurality of lens elements arranged in order toward the screen from the image display element and symmetrically with respect to an optical axis, and a reflecting mirror shaped to be axial-asymmetrical with respect to the optical axis. The projection display system further comprises a screen 5. The projection display unit projects the image light onto a projection plane of the screen to display an image.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: November 20, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Koji Hirata, Masahiko Yatsu, Takanori Hisada, Masayuki Ohki
  • 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
  • Publication number: 20120236267
    Abstract: A screen device includes: a screen 102 transmitting and diffusing image light from a back side thereof; a storage section 101 rolling up and storing the screen 102 therein; and a shading member 111 covering over the back of the screen 102 such that a space through the image light toward the screen 102 passes is formed between the shading member 111 and the screen 102. The screen 102 is extendable by moving a second edge thereof, lying opposite to a first edge thereof attached to the storage section 101, upward or downward away from the storage section 101. The shading member 111 is attached at one edge thereof to on object alongside the screen-device storage section 101 side in a state where the shading member covers over the back of the screen 102, and another edge thereof lying opposite to the one edge is connected to the second edge.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 20, 2012
    Applicant: PANASONIC CORPORATION
    Inventor: Shigekazu Yamagishi
  • Patent number: 8254024
    Abstract: An inflatable display screen has a front wall incorporating a rectangular display screen area, and a plurality of inflatable struts surrounding the screen area and extending rearwardly from the front wall to support the screen in an upright condition. A lower horizontal strut extends across the lower end of the front wall and projects forwards from the display screen area. Lower side struts extend rearwards to a lower horizontal strut extending across the rear end of the structure. A pair of rearwardly arched support struts extends from the upper corners of the front wall rearwards and downwards to the rear corners of the structure at corner junctions between the arched struts, lower side struts and the lower horizontal strut.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: August 28, 2012
    Inventor: Richard Giammarinaro, Jr.
  • Publication number: 20120182610
    Abstract: Provided are diffused but transmissive optical image projection screens and methods of their manufacture, including screens comprising acetal polymers such as polyoxymethylene. Such screens may be used in various applications, including but not limited electronic image display and control system comprising in various embodiments a microdisplay video projector that projects a high quality color image from a non-CRT image source onto a diffused but transmissive optical projection screen that is optically coupled with and viewable through a biocular adapted to this purpose. Systems are disclosed that are adapted to be mechanically coupled with a user to prevent relative movement between the biocular and the user, for instance in tactical applications. Closed-loop control electronics are provided for automatically controlling the brightness and chromaticity of the image.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 19, 2012
    Applicant: Palomar Display Products, Inc.
    Inventors: Richard O'Hara, Chris Weinold
  • Patent number: 8218237
    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: July 21, 2011
    Date of Patent: July 10, 2012
    Assignee: Microsoft Corporation
    Inventors: Zhiqiang Liu, Prafulla Masalkar, Karlton Powell
  • Patent number: 8213082
    Abstract: Provided is a light control film and displays incorporating same. In particular, provided are light control films comprising a light input surface and a light output surface opposite the light input surface. The light control films further comprise alternating transmissive and absorptive regions disposed between the light input surface and the light output surface. Each transmissive region has an index of refraction N1, and each absorptive region having an index of refraction N2, where N2-N1 is not less than?0.005. The light control films have an average pitch of successive absorptive regions of 0.070 mm or less. Light incident to the light input surface exits the light output surface with a maximum relative brightness ratio (RBR) in a direction perpendicular to the light output surface of 65 or greater, and exits the light output surface with an effective polar viewing angle (EPVA) of 45° or less.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: July 3, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Gary E. Gaides, Michael E. Lauters
  • Publication number: 20120140319
    Abstract: A projector device includes an acquisition unit configured to acquire an image from an image pickup unit that picks up the image on a projection side of a transmissive type screen to which a display image is projected by a projector; a detection unit configured to detect a position where a luminance is changed on the acquired image; and an output unit configured to output the position on the acquired image where the change in luminance is detected.
    Type: Application
    Filed: September 22, 2011
    Publication date: June 7, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Mineo Moribe, Shinichiro Mori, Yuichi Hanada, Takahiro Umada
  • Patent number: 8169701
    Abstract: Various embodiments related to a rear projection display screen configured to reduce an intensity of light at a viewing angle at which the light is less likely to be viewed by a user are disclosed. One disclosed embodiment provides a diffusing screen comprising a sheet-like structure transparent to one or more wavelengths of light. The sheet-like structure has a viewing surface and comprises a diffusing pattern configured to create destructive interference of a selected wavelength of light traveling in a direction normal to a plane of the viewing surface of the screen.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: May 1, 2012
    Assignee: Microsoft Corporation
    Inventor: Prafulla Masalkar
  • Patent number: 8167436
    Abstract: A display shelf system includes a display shelf, which includes a plurality of placing tables which are adapted to have an article placed thereon. A plurality of transmission-type screens are arranged with the placing tables, respectively. A projector projects a projector image, and a light guide of the display shelf leads the projector image onto the rear sides of the transmission-type screens. The transmission-type screens have curved surfaces which are inclined to face toward a lateral direction with respect to a front of the display shelf, so that the transmission-type screens are easily viewable by viewers who are in the lateral directions of the display shelf.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: May 1, 2012
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Yoshihiko Ikeda, Hiroki Mochizuki
  • Publication number: 20120098941
    Abstract: A three-dimensional (3D) display device creating 3D illusions or effects within a contained space or volume. The device includes a front sidewall providing a viewing window to an interior of the display device. The device includes a transparent rear projection screen with a front surface facing the viewing window that is spaced apart a distance from the front sidewall. A media source projects a two dimensional (2D) image onto a back surface of the projection screen in a direction that is oblique to the front sidewall. The projection screen is positioned such that the front surface is angled away from the front sidewall, whereby the front surface is oblique to the viewing window. A leading edge of the projection screen is proximate to the front sidewall and a trailing edge of the projection screen is distal to the front sidewall with the front surface angled away from the front sidewall.
    Type: Application
    Filed: October 22, 2010
    Publication date: April 26, 2012
    Applicant: DISNEY ENTERPRISES, INC.
    Inventors: Daniel M. Joseph, Mark A. Reichow
  • 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: 8130446
    Abstract: An optical deflecting sheet for a transmission type screen that emits imaging light projected from an incident side to an emergent side. The optical deflecting sheet includes a highly rigid substrate layer with a light-transmissibility and a high rigidity, and a plurality of layers laminated on the substrate layer. The plurality of layers includes at least a pair of anti-scattering layers disposed on opposite sides of the substrate layer for preventing scattering of the substrate layer. At least one layer of the two or more layers includes an optical deflecting element that deflects imaging light by refracting or reflecting the imaging light. The optical deflecting element is a prism part formed by arranging a plurality of unit prisms each having an incident surface on which light is incident and a total reflecting surface for reflecting at least a part of light incident on the incident surface.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: March 6, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Daijiro Kodama, Tsuyoshi Kashiwagi, Kei Kato
  • 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