Of An Alloy Of S, Se, Or Te Patents (Class 349/26)
  • Patent number: 10353210
    Abstract: Disclosed herein are techniques for dynamically forming an optical component that automatically aligns with and changes positions with a scanning light beam to modify the wave front of the scanning light beam, such as collimating the scanning light beam. More specifically, a patterning beam that aligns with the scanning light beam may be scanned together with the scanning light beam to form the self-aligning and travelling optical component in an electro-optic material layer that is connected in serial with a photoconductive material layer to a voltage source, where the patterning beam optically modulates the impedance of the photoconductive material layer and therefore an electric field within the electro-optic material layer, the modulated electric field causing localized changes of refractive index in the electro-optic material layer to form the self-aligning and travelling optical component.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: July 16, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: John Wyrwas, Robert Holman, Russell Gruhlke, Khurshid Alam, Kebin Li
  • Patent number: 10168579
    Abstract: An alignment film is given a 2-layer structure comprising a photoalignment film that is photoalignable and a low-resistivity alignment film whose resistivity is smaller than that of the photoalignment film. The photoalignment film is formed by a polyimide whose precursor is polyamide acid alkyl ester, the number molecular weight of the photoalignment film is large, and the stability of alignment of the photoalignment film by photoalignment is excellent. The low-resistivity alignment film is formed by a polyimide whose precursor is polyamide acid, the number molecular weight of the low-resistivity alignment film is small, and the resistivity of the low-resistivity alignment film is small. The 2-layer structure alignment film can be maintaining an excellent photoalignment characteristic, so DC afterimages can be controlled.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: January 1, 2019
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Chikae Matsui, Noboru Kunimatsu, Hidehiro Sonoda
  • Patent number: 9697763
    Abstract: The present invention relates to displays including resonant trace structures. Displays are disclosed that include a first array of first electrically conductive traces configured to conduct alternating current, each of the first electrically conductive traces can be coupled to a first microelectromechanical system (MEM) surface acoustic wave (SAW) frequency selective filter. The displays further include a second array of second electrically conductive traces configured to conduct alternating current, each of the second electrically conductive traces can be coupled to a second microelectromechanical system (MEM) surface acoustic wave (SAW) frequency selective filter.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: July 4, 2017
    Assignee: MEISNER CONSULTING INC.
    Inventor: Milton D. Meisner
  • Patent number: 9671637
    Abstract: In a touch screen substrate and a method of manufacturing the same, the touch screen substrate includes a base substrate, a light blocking pattern, a first sensing element and a first switching element. The light blocking pattern includes an inorganic layer formed on the base substrate and a light blocking layer formed on the inorganic layer, the light blocking layer transmitting an infrared light and absorbing a visible light. The first sensing element is formed on the light blocking pattern and senses the infrared light. The first switching element is electrically connected to the first sensing element. Thus, an undercut may be prevented from being formed at a lower portion of the light blocking pattern, and an adhesive strength between the light blocking pattern and the base substrate may be enhanced.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: June 6, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yun-Jong Yeo, Hong-Kee Chin
  • Patent number: 8836906
    Abstract: An object is to provide a display device which has high visibility and has a touch recognition function with a high degree of accuracy, by combining a liquid crystal layer where liquid crystals are dispersed in a polymer and a light emitting element. In a display device using a liquid crystal layer where liquid crystals are dispersed in a polymer, a light-transmitting spacer is provided so as to overlap with a light receiving element which has a touch recognition function. The light-transmitting spacer can prevent light incident on the light receiving element from being dispersed by the liquid crystals, while maintaining a cell gap in the liquid crystal layer, and thus achieve a touch recognition function with a high degree of accuracy with high visibility.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: September 16, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiyuki Kurokawa, Takayuki Ikeda, Tetsuji Ishitani
  • Patent number: 8305505
    Abstract: An optically based transport system and method for transporting particles across a virtual electrode array are disclosed. The system comprises a photoconductor layer where optically induced electrodes are projected thereon through sequential light images in a traveling wave grid pattern in order to transport particles across the virtual electrode array with a traveling wave.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: November 6, 2012
    Assignees: Palo Alto Research Center Incorporated, Xerox Corporation
    Inventors: Meng H. Lean, Shu Chang, Patrick Y. Maeda, Jeng Ping Lu
  • Patent number: 8149252
    Abstract: A display uses x illuminator systems to produce x primary colors and y overlap colors, which are combinations of primary colors, to illuminate a spatial light modulator in a display system. A first set of n duty cycles for the x primary colors over a frame is provided, wherein the display system can select any one of the duty cycles to produce a desired white point. A second set of n duty cycles of x+y colors over a frame corresponding to the first set of duty cycles is determined, where the second set of duty cycles are generated responsive to a specified desired allocation of the frame to the y overlap colors, such that each of the overlap colors can be displayed from a dark shade to a bright shade while maintaining a constant color point.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: April 3, 2012
    Assignee: Texas Instruments Incorporated
    Inventor: Todd Alan Clatanoff
  • Patent number: 7266778
    Abstract: A display system and method are provided. The system typically includes a display configured to control visible light, as well as to sense an optical signal projected thereon, the display being adapted to freeze a projected image by storing the optical signal associated with the live projected image in memory associated with the display and controlling visible light corresponding to the stored optical signal to form a frozen projection image.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: September 4, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eric T. Martin, Andrew Koll
  • Patent number: 5693958
    Abstract: A light-writing-type liquid crystal element which is provided with carrier-blocking layers that are installed on the transparent electrode side and on the light-shielding layer side of a photoconductive layer and that prevents carriers from entering the photoconductive layer. By adjusting the width of a depletion layer that is formed by the carrier-blocking layers and other factors, the energy-band structure of the photoconductive layer is kept asymmetric so that when a voltage is applied onto the photoconductive layer, the area on the writing-light incident-side of the photoconductive layer receives a higher voltage than that of the area on the liquid-crystal-layer side. Consequently, the photosensitivity of the photoconductive layer is improved, and the resolution as well as the contrast of the element can be improved.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: December 2, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Torihara, Akitsugu Hatano, Shinpei Higashida
  • Patent number: 5640260
    Abstract: A liquid crystal light valve includes a light transmitting substrate where a transparent electrode, a photoconductor layer and a light blocking layer have been formed, a light transmitting substrate which is opposite to the above light transmitting substrate and on which a counter electrode has been formed, and a liquid crystal layer formed by sealing liquid crystal between these light transmitting substrates. The light blocking layer is composed of 4B group alloy mainly containing silicon, such as hydrogenated amorphous silicon germanium or hydrogenated amorphous silicon tin, and it is formed so that a relationship between activation energy Ea and an optical gap Eopt becomes 0<Ea<Eopt/2 or 0<Ea.ltoreq.0.50 eV. As a result, the light blocking layer with gentle temperature properties and high resistance can be obtained. Therefore, it is possible to provide the light blocking layer where a change in conductivity according to a change in temperature is small.
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: June 17, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yukihiro Sumida