Embedded Particles Patents (Class 359/452)
  • Patent number: 11609487
    Abstract: A projection screen control method of one embodiment of the present disclosure includes irradiating a display member with first control light, and irradiating the display member with second control light, in which the irradiating the display member with the first control light and the irradiating the display member with the second control light are performed in sequence. The display member has a visible light transmittance or a visible light reflectance that varies depending on light, and contains a photochromic material, and the first control light and the second control light have different light intensities.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 21, 2023
    Assignee: SONY CORPORATION
    Inventors: Hidehiko Takanashi, Hideki Ono, Yui Ishii
  • Patent number: 11534291
    Abstract: Systems and methods are provided for improving overall vision in patients suffering from a loss of vision in a portion of the retina (e.g., loss of central vision) by providing symmetric or asymmetric optic with aspheric surface which redirects and/or focuses light incident on the eye at oblique angles onto a peripheral retinal location. The intraocular lens can include a redirection element (e.g., a prism, a diffractive element, or an optical component with a decentered GRIN profile) configured to direct incident light along a deflected optical axis and to focus an image at a location on the peripheral retina. Optical properties of the intraocular lens can be configured to improve or reduce peripheral errors at the location on the peripheral retina.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: December 27, 2022
    Assignee: AMO Groningen B.V.
    Inventors: Robert Rosen, Hendrik A. Weeber, Carmen Canovas Vidal, Marrie Van Der Mooren, Dora Sellitri
  • Patent number: 11320730
    Abstract: An article used as black or dark-colored front-projection screen includes two distinct diffusely reflecting scattering elements, taking the form of parallel sheets or planes, qualified first and second scattering elements, wherein the first scattering element is translucent or transparent and the second scattering element is of dark color.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: May 3, 2022
    Assignee: SAINT-GOBAIN GLASS FRANCE
    Inventors: C├ęcile Ozanam, Patrick Gayout, Emmanuel Mimoun
  • Patent number: 11150471
    Abstract: A diffuser for use in a head up display formed of an array of microlenses. The microlenses comprises both concave and convex microlenses to reduce surface discontinuities between adjacent lenses.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: October 19, 2021
    Assignee: BAE SYSTEMS plc
    Inventor: Graham Laurence Hogg
  • Patent number: 10663632
    Abstract: In an aspect, an illumination system (100) includes a light source (102) configured to generate a light beam (103), and a chromatic reflective unit (1) for being illuminated by the light beam (103). The chromatic reflective unit (1) includes a plurality of non-coplanar reflective surface sections (3?), and a chromatic diffusing layer (5) includes a plurality of nanoparticles (37) embedded in a matrix (39). The chromatic diffusing layer (5) is provided upstream of the plurality of reflective surface sections (3?) such that at least a portion of the light beam (103) passes through the chromatic diffusing layer (5) before and after being reflected by the plurality of non-coplanar reflective surface sections (3?). Chromatic diffusing layer (5) is further configured to provide for a specular reflectance that is larger in the red than in the blue and for a diffuse reflectance that is larger in the blue than in the red.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: May 26, 2020
    Assignee: CoeLux S.r.l.
    Inventors: Paolo Di Trapani, Davide Magatti
  • Patent number: 10522777
    Abstract: Provided is a display device having a first pixel and a second pixel adjacent to the first pixel. The first pixel includes a first pixel electrode, a first EL layer over the first pixel electrode, and a second electrode over the first EL layer. The second pixel includes a second pixel electrode, a second EL layer over the second pixel electrode, and the second electrode over the second EL layer. The display device further possesses a first cap layer over the second electrode, a second cap layer over the first cap layer and overlapping with the first EL layer, and a third cap layer covering the second cap layer, overlapping with the first EL layer and the second EL layer, and in contact with the first cap layer in a region overlapping with the second EL layer.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: December 31, 2019
    Assignee: Japan Display Inc.
    Inventors: Takahiro Ushikubo, Norihisa Maeda
  • Patent number: 10509225
    Abstract: In order to provide a transmission type screen having a flat scattered intensity within a predetermined scattering angle, a transmission type screen (50) according to the present invention comprising a first surface (51), and a second surface (52) opposed to the first surface (51), wherein: the first surface (51) is equipped with a microlens array (57) including a plurality of microlenses; the second surface (52) is equipped with a light diffusion surface (60); and a diffusion angle ratio of a diffusion angle of the light diffusion surface (60) relative to a diffusion angle of the microlens array (57) is not less than 0.2 and not more than 0.4.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: December 17, 2019
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Tsuyoshi Chiba, Shogo Kubota
  • Patent number: 10444614
    Abstract: A screen with a high flatness where no distortion arises in a central portion of the screen can be obtained. A first thickness of a portion other than a plurality of inclined portions that reflects to the front a obliquely-incident projection light is no more than 2 times a second thickness of the inclined portion. Moreover, a width is about 1550 mm, a height is about 900 mm, and when the reflective screen is suspended so a vertically-downward pulling load is about 3 kg, in a first region that includes the central portion of the reflective screen but does not include an end portion of the reflective screen, no shift arises in an image displayed on the reflective screen between when a reference line passing through a substantially central portion of the reflective screen at an incidence angle of about 15 degrees and when the reference line is projected at an incidence angle of about 60 degrees.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: October 15, 2019
    Assignee: ARISAWA MFG. CO., LTD.
    Inventor: Hajime Maruta
  • Patent number: 10393924
    Abstract: A polarizer includes an adhesive, a first protective layer, a substrate layer, a second protective layer and a surface protective film. The surface protective film includes a plurality of first particles. Each of the first particles has a first particle size. The first particle size is greater than or equal to 10 ?m.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: August 27, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chien-Chi Chen, Yu-Han Chiang, Shang-Chiang Lin, Chen-Hsien Liao
  • Patent number: 10288991
    Abstract: A paint composition comprises a carrier material, a plurality of ambient light absorbing pigment particles dispersed in the carrier material comprising a component that absorbs predetermined visible wavelengths, and a plurality of fluorescent pigment particles dispersed in the carrier material, wherein the fluorescent pigment particles emit a first color and the paint composition emits a second color different from the first color when illuminated by an ultraviolet light source. The paint composition can act as a video projection surface with usable screen gain.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: May 14, 2019
    Assignee: Disney Enterprises, Inc.
    Inventors: Daniel M. Joseph, Steven A. Johnson
  • Patent number: 10288780
    Abstract: A reflective transparent screen according to the present invention comprises a light diffusion layer which comprises a binder and microparticles. The reflective transparent screen has a total light transmission of 60% or more and a parallel beam transmittance of 50% or more. The transparent screen has the diffuse reflectance light brilliance profile measured with a goniophotometer characterized to satisfy the conditions A and B.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: May 14, 2019
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Kousuke Yamaki, Akira Matsuo
  • Patent number: 10168569
    Abstract: A light-diffusion member (7) includes: a substrate (39) having light-transmitting properties; a light-diffusion portion (40) on a face of the substrate (39) facing a display medium (6); and a light-blocking layer (41) on a part of the face of the substrate (39) facing the display medium (6) other than where the light-diffusion portion (40) is provided. The light-diffusion portion (40) includes: a light-emitting end face (40a) in contact with the substrate (39); and a light-incident end face (40b) facing, and being larger in area than, the light-emitting end face (40a). The adhesive layer (42) adheres to light-incident end face (40a) and partly (42a) encroaches into a space (43) between the light-diffusion portion (40) and light-blocking layer (41).
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: January 1, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shohei Katsuta, Yasushi Asaoka, Sho Ochi, Hideomi Yui, Tsuyoshi Maeda, Emi Yamamoto
  • Patent number: 10126549
    Abstract: The present invention provides a method for designing a light diffusion pattern with which a light diffusion pattern to exhibit desired light diffusion properties can be designed depending on a few systematic procedures. The method includes a lens data preparation step of preparing lens data having desired light diffusion properties, a placement step of placing a plurality of lens data (100) prepared in the lens data preparation step in a predetermined region (200), a cutting step of, when an overlap (210) of lenses (100) occurs in the placement step, cutting out a part (421) of a lens shape to eliminate the overlap (210), and a repositioning step of replicating a shape of the cutout part (421) and repositioning it to another place.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: November 13, 2018
    Assignee: KURARAY Co., Ltd.
    Inventors: Atsushi Uchida, Masashi Hirai, Masaru Karai
  • Patent number: 10094967
    Abstract: Disclosed are an optical sheet, a display device including the same, and a method for manufacturing the same. The optical sheet includes a host layer, a plurality of wavelength conversion particles in the host layer, and a plurality of optical path change particles in the host layer.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 9, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Sahng Jin Lee
  • Patent number: 10018327
    Abstract: The present invention may relate to an optical sheet unit. According to an embodiment of the present invention, disclosed is an optical sheet unit comprising: a diffusion sheet for diffusing incident light such that the light can be uniformly emitted; a prism sheet unit arranged at the position facing the diffusion sheet to concentrate the light incident from the diffusion sheet; and a bonding layer formed between the prism sheet unit and the diffusion sheet to bond the entire surfaces of the prism sheet unit and the diffusion sheet facing each other.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: July 10, 2018
    Assignee: LMS CO., LTD
    Inventors: Sung Sik Cho, Oh Hyun Kwon, Tae Jun Lee, Woo Jong Lee, Hee Jeong Kim, Jee Hong Min, Young Il Kim
  • Patent number: 9816687
    Abstract: The present techniques are related to an apparatus for an MEMS LED zoom. The apparatus for includes an LED light source and a collimation lens. The collimation lens to collimate light from the LED light source. The apparatus is also to include an active lens. The active lens to adjust the collimated light from the collimation lens.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: November 14, 2017
    Assignee: Intel Corporation
    Inventor: Mikko Ollila
  • Patent number: 9804311
    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: April 6, 2016
    Date of Patent: October 31, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Gary E. Gaides, Kenneth A. Epstein
  • Patent number: 9562993
    Abstract: There is provided a method of manufacturing a refractive index distribution structure having a plurality of microparticles, suppressing density unevenness between the plurality of microparticles, capable of obtaining uniform in-plane characteristics, and capable of maintaining stability and high reproducibility. The method of manufacturing a refractive index distribution structure includes manufacturing a plurality of core-shell microparticles including a shell and a core microparticle contained in the shell, the core microparticle being made of a material having a refractive index higher than the material forming the shell and having the same core diameter, and the shell having a different shell thickness; and forming a refractive index distribution structure by arranging the plurality of core-shell microparticles on a substrate.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: February 7, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akinari Takagi
  • Patent number: 9557600
    Abstract: A backlight unit includes excellent heat radiation characteristics. The backlight unit of an embodiment of the present invention includes a chassis and a light source attached to the chassis. As the light source, an LED is preferably used. The chassis includes an aluminum base or aluminum layer, and a porous alumina layer or pore-sealed porous alumina layer provided on the surface of the aluminum base or aluminum layer.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: January 31, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takao Imaoku, Takatomo Yoshioka, Kohji Fujiwara
  • Patent number: 9518708
    Abstract: A lighting apparatus includes a plurality of LEDs arranged in a row; an elongated wiring board on which the LEDs are mounted; and an optical lens covering all the LEDs and controlling distribution of light emitted from each LED. The light emitted from each LED has an optical axis orthogonal to the wiring board. The optical lens is a converging lens and includes a first light incident surface on which the light emitted from the LED is incident, a medium that guides the light incident from the light incident surface, a light emitting surface, and a diffusion section that contains diffusing particles for causing the light incident from the LED to diffuse. The concentration of the diffusing particles in the diffusion section is high in the vicinity of the optical axis of the light emitted from the LED and gradually decreases as a distance from the optical axis increases.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: December 13, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Ohta, Atsushi Motoya
  • Patent number: 9202855
    Abstract: A display panel is discussed. The display panel includes a substrate having a thin film transistor (TFT) area having a plurality of thin film transistors (TFTs), and a pixel area having a plurality of subpixels that correspond to the plurality of thin film transistors; a plurality of color filters respectively formed in each area of the plurality of subpixels, the plurality color filters comprising each of red color (R), green color (G), blue color (B) and white color; and a white photoresist formed in a subpixel area of the white color filter, and formed to cover the TFT area.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: December 1, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: EunMi Jo, JuneHo Park, InCheol Park
  • Patent number: 9134473
    Abstract: A spread illuminating apparatus includes a plurality of LEDs, an FPC on which the plurality of LEDs are mounted, and a light guide plate. The FPC is fixed to an underside surface of the light guide plate using a double-sided tape, and the plurality of LEDs are disposed opposing an incident light surface of the light guide plate. The double-sided tape includes a white substrate that reflects light and a white adhesive layer that reflects light and is formed on a surface of the white substrate on a side opposing the light guide plate. The white adhesive layer is prepared by mixing a light reflecting substance into an adhesive. Thereby, the brightness and environmental resistance of the spread illuminating apparatus can be improved.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: September 15, 2015
    Assignee: MINEBEA CO., LTD.
    Inventor: Shinji Kawai
  • 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: 8960919
    Abstract: An image projection device includes a number-of-times measurement section that measures the number of passage times that the scanned laser light has passed through the light radiation members, a time measurement section that is triggered to measure an elapsed time when the number-of-times measurement section measures the number of passage times, an arithmetic section that calculates an initial timing at which the laser light source section starts outputting the laser light based on the measurement results of the number-of-times measurement section and the time measurement section, and a signal generation section that generates the switch signal at the initial timing calculated by the arithmetic section.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: February 24, 2015
    Assignee: NEC Corporation
    Inventor: So Nishimura
  • Publication number: 20150015799
    Abstract: A projection screen includes a substrate and an optical microstructure. The substrate has a projection area for projecting an image onto the projection area. The projection area includes a plurality of arrayed optical regions. Each of the optical regions includes a first and second optical sub-region with optical characteristics of reflective scattering/transmissive scattering/specular reflection and simple transmission, wherein an area of the second optical sub-region is larger than that of the first optical sub-region. The optical microstructure is arranged on the substrate for guiding the light of the image to a specific direction. The above-mentioned projection screen with two or more optical characteristics, for example, can be at the same time as the front projection screen and the rear projection screen, or allows the user to watch background image behind the projection screen. A projection system including the above-mentioned projection screen is also disclosed.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 15, 2015
    Inventor: Cheng-Huan CHEN
  • Publication number: 20150009569
    Abstract: A screen is provided with microcapsules and a base material. The microcapsules each contain encapsulated liquid inside a capsule membrane. The microcapsules are planarly arranged on the base material. The encapsulated liquid includes light diffusion particles for scattering light, and a dispersion medium for dispersing the light diffusion particles. In a cross sectional area of the microcapsule projected in the direction perpendicular to the surface of the base material on which the microcapsules are planarly arranged, the ratio of the area of the encapsulated region to the area of the microcapsule ranges from 0.9025 to 0.990.
    Type: Application
    Filed: February 26, 2013
    Publication date: January 8, 2015
    Inventors: Satoru Okagaki, Jun Kondo, Kuniko Kojima, Yuzo Nakano, Akihisa Miyata
  • Patent number: 8922888
    Abstract: A light diffusing optical construction is disclosed. The optical construction includes a symmetric optical diffuser that scatters light in a first direction with a first viewing angle AH and in a second direction orthogonal to the first direction with a second viewing angle AV, where AV is substantially equal to AH. The symmetric optical diffuser includes an optically transparent first layer and a plurality of randomly arranged optically transparent beads partially embedded in the first layer leaving portions of the beads exposed. The optical construction also includes a specular reflector that reflects light that is not scattered by the symmetric optical diffuser. The specular reflector has a first average reflectance Ro in the visible at zero incident angle and a second average reflectance R60 in the visible at 60 degree incident angle. Ro/R60 is at least about 1.5. The optical construction also includes a light absorbing layer that absorbs light that is not reflected by the specular reflector.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: December 30, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Yufeng Liu, David T. Yust
  • Patent number: 8917447
    Abstract: Microreplicated light redirecting films suitable for use in autostereoscopic displays and backlights are made to incorporate at least one nanovoided layer whose interface with another layer forms an embedded structured surface of the light redirecting film. The nanovoided layer includes a polymer binder and optional nanoparticles, and may have a refractive index less than 1.35 or 1.3. The light redirecting films may be adapted for attachment to one or more other components of an autostereoscopic display, such as a display panel and/or a light guide of a backlight.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: December 23, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Martin B. Wolk, Michael J. Sykora, William Blake Kolb, Encai Hao, John C. Schultz, Robert L. Brott, William J. Bryan, Scott M. Tapio, Audrey A. Sherman
  • Publication number: 20140247428
    Abstract: Projection 3D systems and polarization preserving 3D screens are described that substantially increase polarization contrast ratio and viewing angle.
    Type: Application
    Filed: October 25, 2012
    Publication date: September 4, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Richard Y. Liu, Alan P. Miller
  • Patent number: 8760760
    Abstract: A method for providing a projection screen for receiving stereoscopic images may include providing a substrate with a contoured, reflective surface, wherein light reflected from the substrate substantially may undergo no more than a single reflection and may also include coating a first layer on the substrate with a contoured, reflective surface. The first layer may substantially maintain the same optical properties as the substrate without the first layer. The first layer may be substantially conformal to the surface of the substrate and also may be a self assembled monolayer coating which may include at least a functional group that is hydrophobic.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: June 24, 2014
    Assignee: RealD Inc.
    Inventors: David A. Coleman, Gary D. Sharp
  • Patent number: 8730580
    Abstract: A light diffusion cell for laser light where in a transparent cell in which a liquid can be sealed, a fine particle dispersion in which fine particles having an average particle size of 100 nm or more and 1.5 ?m or less are colloidally dispersed in a liquid medium transmitting light, a same light diffusion cell including a reflection mechanism recursively using reflection light of incident light, a laser light source device including the light diffusion cell and a semiconductor laser light source and an image display device including the light diffusion cell or the laser light source device, and the light diffusion cell significantly reduces or removes speckle noise of semiconductor laser light. In addition, the light diffusion cell has an easy constitution, occupies a smaller volume and can be easily incorporated in any type of image display device using laser light.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: May 20, 2014
    Assignees: Nippon Kayaku Kabushiki Kaisha, Polatechno Co., Ltd.
    Inventor: Hideyoshi Fujisawa
  • Patent number: 8723768
    Abstract: The display device includes an anti-reflection film having a plurality of projections over a display screen surface and a protective layer filling a space between the projections. The number of times of incidence of external light entering the display device on the anti-reflection film is increased; therefore, the amount of external light transmitted through the anti-reflection film is increased. Thus, the amount of external light reflected to a viewer side is reduced, and the cause of a reduction in visibility such as reflection can be eliminated. Further, since the plurality of projections is covered with a protective layer, entry of dust can be prevented, and physical strength of the anti-reflection film can be increased.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: May 13, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuji Egi, Takeshi Nishi, Kiyofumi Ogino, Shinya Sasagawa, Motomu Kurata, Hideomi Suzawa
  • Patent number: 8711476
    Abstract: A screen includes a polarization layer having plural acicular particles provided with their major axes oriented nearly in the same direction on a substrate, and has polarization selectivity of reflecting light in one polarization direction and absorbing light in the other polarization direction of two polarization directions orthogonal to each other on a plane perpendicular to incident light.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Noriko Kenmochi
  • Patent number: 8687272
    Abstract: A projection screen that reduces speckle by separating reflective flakes by at least 100 micrometers. The reflective flakes are held in a binder material that is coated on a backing layer. In a laser projection system, the separation distance between reflective flakes may be at least twice the coherence length of the laser light.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: April 1, 2014
    Assignee: Laser Light Engines, Inc.
    Inventors: Barret Lippey, Ian Turner
  • Patent number: 8659828
    Abstract: Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises embossing at least a first side of a first substrate to produce an optically functional material and then cutting the optically functional material into pieces to produce a plurality of engineered particles. The plurality of engineered particles may then be deposited on a second substrate to produce a substantially homogeneous optical appearance of the projection screen.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: February 25, 2014
    Assignee: RealD Inc.
    Inventors: Gary D. Sharp, David A. Coleman, Joel Petersen, Chris Rich, Ray Lewandowski
  • Patent number: 8659829
    Abstract: Optical films are described comprising a color shifting film comprising a matte surface layer; and light control microstructured layer disposed proximate the color shifting film. The optical film may comprise a matte layer disposed on a major surface of the color shifting film and the light control micro structured layer disposed on the color shifting film at an interface that is free of adhesive. Alternatively, the optical film may comprise a film stack comprising a light control film having a light control microstructured layer, a color shifting film, and an adhesive layer between the light control film and color shifting film. In some embodiments, the matte layer comprises matte particles. In other embodiments, the matte layer comprises a plurality of microstructures and no greater than 50% of the microstructures comprise embedded matte particles. In some embodiments, the microstructures are substantially free of embedded matte particles.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: February 25, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher B. Walker, Jr., Michael E. Lauters, Joan M. Noyola
  • Publication number: 20130301122
    Abstract: Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises stripping an optically functional material from a carrier substrate, thus creating engineered particles from the optically functional material. The engineered particles may then be deposited on a second substrate to create a substantially homogeneous optical appearance of the projection screen.
    Type: Application
    Filed: July 15, 2013
    Publication date: November 14, 2013
    Inventors: Joel Petersen, Christopher Rich, Raymond Jacob Lewandowski, Gary D. Sharp, David Coleman
  • Patent number: 8570651
    Abstract: A screen having a front and rear surface arranged to be used with viewing both 2D and 3D images. The front and rear screen surfaces are formed differently from different materials, where the front surface is used as a 3D image screen and the rear surface is used as a screen having high resolution.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: October 29, 2013
    Inventor: Hae-Yong Choi
  • Patent number: 8567958
    Abstract: An apparatus, system, and method are disclosed for managing projection areas on a surface. A search module is configured to search for one or more markers defining one or more projection areas on a surface. An area module is configured to select a usable projection area from the one or more projection areas on the surface. A boundary module is configured to determine a boundary for the usable projection area. A constraint module is configured to constrain a projection from a projector onto the surface within the boundary of the usable projection area in response to the boundary module determining the boundary of the usable projection area.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: October 29, 2013
    Assignee: International Business Machines Corporation
    Inventors: Gary D. Cudak, Christopher J. Hardee, Randall C. Humes, Heather C. Miller
  • Patent number: 8488240
    Abstract: Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises stripping an optically functional material from a carrier substrate, thus creating engineered particles from the optically functional material. The engineered particles may then be deposited on a second substrate to create a substantially homogeneous optical appearance of the projection screen.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: July 16, 2013
    Assignee: RealD Inc.
    Inventors: Joel Petersen, Christopher Rich, Raymond Jacob Lewandowski, Gary D. Sharp, David Coleman
  • Patent number: 8368998
    Abstract: A method is provided for color tuning a plasmonic device with a color tunable electronic skin. A plasmonic electronic skin is used, including a first substrate, a plasmonic structure, an electrically conductive transparent first electrode layer, an electrically conductive transparent second electrode layer, and a polymer-networked liquid crystal (PNLC) layer interposed between the first and second transparent electrode layers. In response to receiving a color tuning voltage, a full visible spectrum incident light, and a PNLC switch voltage, the plasmonic structure generates a first primary color. A primary color exhibits a single wavelength peak with a spectral full width at half magnitudes (FWHMs) in the visible spectrum of light. In response to receiving the PNLC switch voltage between the first and second electrode layers, the PNLC layer passes incident light.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: February 5, 2013
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Liang Tang, Akinori Hashimura, Apostolos T. Voutsas
  • Patent number: 8360582
    Abstract: A rear projection type image display apparatus. The apparatus includes a projector that projects an image having a relatively high luminance, and a transmission type screen installed at an image formation plane of a projection light from the projector. The apparatus also includes a first polarizing plate having a first polarization direction disposed in front of an exit pupil of the projector, and a second polarizing plate having a second polarizing direction that is substantially orthogonal to the first polarizing direction disposed near a rear surface side opposite to an irradiation surface of the transmission type screen.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: January 29, 2013
    Assignee: Sony Corporation
    Inventors: Tetsujiro Kondo, Tetsushi Kokubo, Hitoshi Mukai, Hirofumi Hibi, Kazumasa Tanaka, Kenji Tanaka, Hiroyuki Morisaki
  • Publication number: 20130003175
    Abstract: A screen includes a polarization layer having plural acicular particles provided with their major axes oriented nearly in the same direction on a substrate, and has polarization selectivity of reflecting light in one polarization direction and absorbing light in the other polarization direction of two polarization directions orthogonal to each other on a plane perpendicular to incident light.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 3, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Nobuhiko KENMOCHI, Noriko Kenmochi
  • Patent number: 8337022
    Abstract: A rear projection image display apparatus that includes one or more projectors that project an image having a high luminance, a first screen having a fibrous texture and that diffracts light incident from the one or more projectors in accordance with a fiber roughness of the fibrous texture, and a second screen attached to the first screen on a side of the first screen opposite the one or more projectors and that diffuses light incident from the first screen and outputs the diffused light.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: December 25, 2012
    Assignee: Sony Corporation
    Inventors: Tetsujiro Kondo, Tetsushi Kokubo, Hitoshi Mukai, Hirofumi Hibi, Kazumasa Tanaka, Kenji Tanaka, Hiroyuki Morisaki
  • Patent number: 8317329
    Abstract: A method to display an infotainment graphic upon a surface within a vehicle includes monitoring a source of infotainment content; determining the infotainment graphic based upon monitoring the source of infotainment content, and displaying the infotainment graphic upon the surface including a material reactive to display graphics in response to an excitation projector, wherein the excitation projector includes an ultraviolet projector.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: November 27, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Thomas A. Seder, Joseph F. Szczerba, Dehua Cui
  • Patent number: 8310756
    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: Grant
    Filed: October 24, 2011
    Date of Patent: November 13, 2012
    Inventor: Hae-Yong Choi
  • Publication number: 20120224150
    Abstract: A light diffusing optical construction is disclosed. The optical construction includes a symmetric optical diffuser that scatters light in a first direction with a first viewing angle AH and in a second direction orthogonal to the first direction with a second viewing angle AV, where AV is substantially equal to AH. The symmetric optical diffuser includes an optically transparent first layer and a plurality of randomly arranged optically transparent beads partially embedded in the first layer leaving portions of the beads exposed. The optical construction also includes a specular reflector that reflects light that is not scattered by the symmetric optical diffuser. The specular reflector has a first average reflectance Ro in the visible at zero incident angle and a second average reflectance R60 in the visible at 60 degree incident angle. Ro/R60 is at least about 1.5. The optical construction also includes a light absorbing layer that absorbs light that is not reflected by the specular reflector.
    Type: Application
    Filed: November 19, 2010
    Publication date: September 6, 2012
    Inventors: Yufeng Liu, David T. Yust
  • Publication number: 20120206800
    Abstract: Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises stripping an optically functional material from a carrier substrate, thus creating engineered particles from the optically functional material. The engineered particles may then be deposited on a second substrate to create a substantially homogeneous optical appearance of the projection screen.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 16, 2012
    Applicants: REALD INC.
    Inventors: Joel Petersen, Christopher Rich, Raymond Jacob Lewandowski, Gary D. Sharp, David Coleman
  • Patent number: 8223431
    Abstract: Provided is a reflective screen. The reflective screen can be widely and commercially used, easily manufactured at low costs, and realize a sufficient reflection image. The reflective screen includes a substrate, a light diffusion layer in front of the substrate, a light reflecting material reflecting projection light, a light absorbing material absorbing external light, and a light absorption reflection layer containing at least the light reflecting material and the light absorbing material together. The light absorption reflection layer being disposed in the rear of the substrate.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: July 17, 2012
    Assignee: LG Electronics Inc.
    Inventor: Hee Bum Kang
  • Patent number: 8218236
    Abstract: A projection screen includes a base sheet, a surface roughness structure, a reflective layer, and a light absorption layer. The base sheet has a first side and a second side opposite to the first side. A plurality of first surfaces and second surfaces are formed on the first side, each first surface faces an optical projection system, and each second surface is disposed between two adjacent first surfaces and forms an angle with respect to a neighboring first surface. The surface roughness structure is formed on at least the first surfaces and capable of diffusing a light beam to a limited extent. The reflective layer is formed on the surface roughness structure and capable of reflecting most of the light beam diffused by the surface roughness structure to a limited extent towards a limited viewing cone, and the light absorption layer is formed on the second surfaces.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: July 10, 2012
    Assignee: Coretronic Corporation
    Inventors: Tzeng-Ke Shiau, Ching-Shiang Li, Wei-Chung Chao