Patents by Inventor Kenta Kamoshida

Kenta Kamoshida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230400730
    Abstract: A liquid crystal display device includes a light source including a plurality of light emitters each to emit a laser beam and an emission surface through which the laser beam is emittable from each of the plurality of light emitters, and a liquid crystal panel on the emission surface to control an amount of the laser beam incident through the emission surface to be transmitted for display. Each of the plurality of light emitters emits the laser beam at an incident polarization angle on the liquid crystal panel maximizing a transmittance of the laser beam through the liquid crystal panel.
    Type: Application
    Filed: November 10, 2021
    Publication date: December 14, 2023
    Inventors: Katsuhiko MORISHITA, Yu MOCHIZUKI, Yoshiki TANAKA, Kenta KAMOSHIDA, Tetsuya MORITA, Mitsuhiro MURATA
  • Publication number: 20230176422
    Abstract: A liquid crystal display device prevents light leakage in a black display of a projected image when a light source reaches a higher temperature, and displays a high-quality image without any lost sense of reality. The device includes a light-transmissive liquid crystal display element including two glass substrates and a liquid crystal layer sealed between the glass substrates, a backlight device that emits light toward one glass substrate in the liquid crystal display element, an emission-light polarizing plate on the other glass substrate, an incident-light polarizing plate on the one glass substrate, and a polarizer being a plate and including a base layer including a glass substrate and a metal layer stacked on the base layer and having a polarization function. The polarizer is located with the base layer facing the incident-light polarizing plate. The base layer is thicker than each of the glass substrates.
    Type: Application
    Filed: April 6, 2021
    Publication date: June 8, 2023
    Inventors: Kenta KAMOSHIDA, Ryo TADAUCHI, Takashi SHIMADA, Kenji OGURA, Mitsuhiro MURATA
  • Patent number: 8289464
    Abstract: A liquid crystal display device includes pixels, each of which includes a first transistor and a second transistor. The size of the first transistor is larger than the size of the second transistor. In addition, channel widths and gate widths for the first transistor are larger than those of the second transistor. Also, the first transistor is located to be closer to a drain signal line provided for the pixel than the second transistor. In normal operation, the first transistor is coupled to the drain signal line and the second transistor is floating. However, if an abnormality occurs in the first transistor, it is cut off from the drain signal line and the second transistor is connected to the drain signal line by a repair line.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: October 16, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tetsuya Kawamura, Masashi Sato, Masanori Ookawa, Kenta Kamoshida, Nagatoshi Kurahashi, Hiroaki Iwato
  • Publication number: 20120146942
    Abstract: A capacitive touch panel has a plurality of first transparent electrodes and a plurality of second transparent electrodes on a transparent substrate. At crossing portions between the first and second electrodes, adjacent electrodes of the second electrodes have no interruption, and adjacent electrodes of the first electrodes are interrupted. An interlayer insulating film is disposed as an upper layer on the second electrodes, and a bridge electrode is disposed as an upper layer on the interlayer insulating film to connect interrupted portions of the first electrodes at the crossing portions. The material constituting the bridge electrode contains an element that is more susceptible to oxidation than elements contained in a material constituting the second electrodes. Constant voltage is applied to the first electrodes, and a pulse voltage having a low potential equal to or higher than the potential of the first electrodes is applied to the second electrodes.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 14, 2012
    Applicant: OPTREX Corporation
    Inventors: Kenta KAMOSHIDA, Kiyoshi Watanabe
  • Publication number: 20120099053
    Abstract: To provide a liquid crystal display device capable of preventing light leakage when a stress is exerted during no operation in a normally black IPS mode. In a normally black IPS mode liquid crystal display device 15, a liquid crystal layer 5 is interposed between a first glass substrate 1 and a second glass substrate 2, and a third glass substrate 3 is fixed to the second glass substrate 2. At that time, a retardation layer 7 to impart to a transmitted light a phase difference corresponding to a half-wavelength of the transmitted light, is provided between the second glass substrate 2 and the third glass substrate 3. Further, a first polarizing plate 8 and a second polarizing plate 9 are provided so that the respective absorption axes are perpendicular to each other.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 26, 2012
    Applicant: OPTREX Corporation
    Inventors: Kenta Kamoshida, Takashi Shimada
  • Patent number: 7986394
    Abstract: The object of the invention is to provide a liquid crystal display device having a flexural panel formed by bending the normal plan liquid crystal panel, which possesses an excellent display quality without the leakage of the light. The technical solution thereof is: the entire liquid crystal panel is bent to form a concave shape bend at the observer's side of the liquid crystal panel, that is, at a side of the CF substrate, towards the observer, so that the pitch at the horizontal direction of the respective pixels on the CF substrate is shorter than the pitch at the horizontal direction of the respective pixels on the TFT substrate, or to make said the same as each other and the width at the horizontal direction of the black matrix existing in both left and right end regions of the horizontal direction on the CF substrate, which is bent to a concave shape, is greater than the width at the horizontal direction of the black matrix disposing in the central section region.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: July 26, 2011
    Assignee: InfoVision Optoelectronics Holdings Limited
    Inventor: Kenta Kamoshida
  • Publication number: 20100224393
    Abstract: A display device with signal lines formed on a substrate and an organic insulation film which covers the signal lines and is formed over an upper layer side of the substrate, the display device further includes a terminal portion on which a conductive film is formed in a state that the conductive film covers portions of the signal lines which are exposed through openings formed in the organic insulation film, wherein the organic insulation film sets a film thickness thereof at a periphery of the terminal portion smaller than the film thickness at other portions, and a surface of small-film-thickness portion arranged in peripheries of the openings is formed into an uneven surface.
    Type: Application
    Filed: March 9, 2010
    Publication date: September 9, 2010
    Inventors: Kenta Kamoshida, Hideshi Nomura, Yasuko Gotoh
  • Publication number: 20100214205
    Abstract: A liquid crystal display device includes pixels, each of which includes a first transistor and a second transistor. The size of the first transistor is larger than the size of the second transistor. In addition, channel widths and gate widths for the first transistor are larger than those of the second transistor. Also, the first transistor is located to be closer to a drain signal line provided for the pixel than the second transistor. In normal operation, the first transistor is coupled to the drain signal line and the second transistor is floating. However, if an abnormality occurs in the first transistor, it is cut off from the drain signal line and the second transistor is connected to the drain signal line by a repair line.
    Type: Application
    Filed: May 4, 2010
    Publication date: August 26, 2010
    Inventors: Tetsuya KAWAMURA, Masashi Sato, Masanori Ookawa, Kenta Kamoshida, Nagatoshi Kurahashi, Hiroaki Iwato
  • Patent number: 7764330
    Abstract: A normal transistor CTFT connected to a data signal line DL and a pixel electrode PX and a spare transistor FTFT in a floating state are formed on a gate line GL. When an operational abnormality occurs in the normal transistor CTFT, the normal transistor CTFT is cut off from the data signal line DL and is cut off from the pixel electrode PX connected via a through hole TH by cutting lines CL. Thereafter, the spare transistor FTFT is connected to the data signal line DL and the pixel electrode PX by repair lines RL.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: July 27, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Tetsuya Kawamura, Masashi Sato, Masanori Ookawa, Kenta Kamoshida, Nagatoshi Kurahashi, Hiroaki Iwato
  • Publication number: 20090086148
    Abstract: An active matrix liquid crystal display device includes a plurality of gate signal lines and a plurality of drain signal lines formed on a substrate. The gate signal lines extend in parallel to one another, and the drain signal lines extend in parallel to one another, and a dummy line is formed between each of adjacent parallel extending drain signal lines.
    Type: Application
    Filed: December 5, 2008
    Publication date: April 2, 2009
    Inventors: Hideshi Nomura, Yasuko Gotoh, Toshiki Kaneko, Kenta Kamoshida
  • Patent number: 7466389
    Abstract: A display device is provided with a first contact hole formed in a display region and a second contact hole formed in a terminal region, and a first insulating layer and a second insulating layer formed in that order. The taper angle of the first insulating layer at the first contact hole is larger than the taper angle of the first insulating layer at the second contact hole, and the taper angle of the second insulating layer at the first contact hole is larger than the taper angle of the second insulating layer around the second contact hole.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: December 16, 2008
    Assignee: Hitachi Displays Co., Ltd.
    Inventors: Hideshi Nomura, Yasuko Gotoh, Toshiki Kaneko, Kenta Kamoshida
  • Publication number: 20080178997
    Abstract: The invention discloses a liquid crystal panel used for liquid crystal display device and a method for manufacturing the same. The object of the invention is to provide a liquid crystal panel having the following structure in order to utilize effectively the peripheral portion of the liquid crystal panel: in a liquid crystal panel which is formed by sandwiching the liquid crystal between a TFT substrate configured with the pixels in a matrix shape and a CF substrate configured with the color filter and sealing the peripheral area with a seal material, the seal material is completely overlappingly disposed on the BM of the CF substrate, and in order to electrically connect said TFT substrate and said CF substrate, a conductive material is adjoined at the outer side of said seal material and is configured to overlap the BM completely, and a structure in which said BM only projects outwardly at the portion, where said conductive material is disposed, is formed.
    Type: Application
    Filed: November 27, 2007
    Publication date: July 31, 2008
    Applicant: INFOVISION OPTOELECTRONICS HOLDINGS LIMITED
    Inventors: Hiroyuki Kamiya, Kenta Kamoshida
  • Publication number: 20080137013
    Abstract: The object of the invention is to provide a liquid crystal display device having a flexural panel formed by bending the normal plan liquid crystal panel, which possesses an excellent display quality without the leakage of the light. The technical solution thereof is: the entire liquid crystal panel is bent to form a concave shape bend at the observer's side of the liquid crystal panel, that is, at a side of the CF substrate, towards the observer, so that the pitch at the horizontal direction of the respective pixels on the CF substrate is shorter than the pitch at the horizontal direction of the respective pixels on the TFT substrate, or to make said the same as each other and the width at the horizontal direction of the black matrix existing in both left and right end regions of the horizontal direction on the CF substrate, which is bent to a concave shape, is greater than the width at the horizontal direction of the black matrix disposing in the central section region.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 12, 2008
    Applicant: InfoVision Optoelectronics Holdings Limited
    Inventor: Kenta Kamoshida
  • Publication number: 20080036936
    Abstract: A normal transistor CTFT connected to a data signal line DL and a pixel electrode PX and a spare transistor FTFT in a floating state are formed on a gate line GL. When an operational abnormality occurs in the normal transistor CTFT, the normal transistor CTFT is cut off from the data signal line DL and is cut off from the pixel electrode PX connected via a through hole TH by cutting lines CL. Thereafter, the spare transistor FTFT is connected to the data signal line DL and the pixel electrode PX by repair lines RL.
    Type: Application
    Filed: April 20, 2007
    Publication date: February 14, 2008
    Inventors: Tetsuya Kawamura, Masashi Sato, Masanori Ookawa, Kenta Kamoshida, Nagatoshi Kurahashi, Hiroaki Iwato
  • Publication number: 20080024691
    Abstract: A normal transistor CTFT connected to a data signal line DL and a pixel electrode PX and a spare transistor FTFT in a floating state are formed on a gate line GL. When an operational abnormality occurs in the normal transistor CTFT, the normal transistor CTFT is cut off from the data signal line DL and the pixel electrode PX by cutting lines CL. The spare transistor FTFT is connected to the data signal line DL and the pixel electrode PX by repair lines RL.
    Type: Application
    Filed: April 4, 2007
    Publication date: January 31, 2008
    Inventors: Noriyuki Okabe, Tetsuya Kawamura, Masashi Sato, Kenta Kamoshida
  • Publication number: 20070035687
    Abstract: The present invention realizes a liquid crystal display device corresponding to high frequency. In a display device in which a plurality of drain electrode lines and a plurality of gate electrode lines are arranged in a matrix array, a pixel region is defined at a portion which is surrounded by two neighboring drain electrode lines and two neighboring gate electrode lines, each pixel region includes a TFT element, and a mass of pixel regions form a display region, each time the drain electrode line traverses the gate electrode line in the extending direction of the drain electrode line, the arrangement direction of TFT elements with respect to the drain electrode line is inverted, and a TFT element is arranged outside the display region each time the drain electrode line traverses two gate electrode lines.
    Type: Application
    Filed: August 11, 2006
    Publication date: February 15, 2007
    Inventors: Ryutaro Oke, Kenta Kamoshida, Ikuko Mori
  • Publication number: 20060152663
    Abstract: A display device with signal lines formed on a substrate and an organic insulation film which covers the signal lines and is formed over an upper layer side of the substrate, the display device further includes a terminal portion on which a conductive film is formed in a state that the conductive film covers portions of the signal lines which are exposed through openings formed in the organic insulation film, wherein the organic insulation film sets a film thickness thereof at a periphery of the terminal portion smaller than the film thickness at other portions, and a surface of small-film-thickness portion arranged in peripheries of the openings is formed into an uneven surface.
    Type: Application
    Filed: January 11, 2006
    Publication date: July 13, 2006
    Inventors: Kenta Kamoshida, Hideshi Nomura, Yasuko Gotoh
  • Publication number: 20050179849
    Abstract: A display device is provided with a first contact hole formed in a display region and a second contact hole formed in a terminal region, and a first insulating layer and a second insulating layer are formed in that order. The taper angle of the first insulating layer at the first contact hole is larger than the taper angle of the first insulating layer at the second contact hole, and the taper angle of the second insulating layer at the first contact hole is larger than the taper angle of the second insulating layer around the second contact hole.
    Type: Application
    Filed: February 10, 2005
    Publication date: August 18, 2005
    Inventors: Hideshi Nomura, Yasuko Gotoh, Toshiki Kaneko, Kenta Kamoshida
  • Patent number: 6803974
    Abstract: Generation of stain-like display defects is prevented. There are provided in a liquid crystal-side pixel region of one substrate of respective substrates that are disposed to oppose each other with liquid crystals interposed therebetween a thin-film transistor being driven by a scan signal from a gate signal line, a pixel electrode to which an image signal from a drain signal line is supplied from this thin-film transistor, a protective film that is formed to also cover the thin-film transistor and the pixel electrode, and a resin film as formed on an upper surface of this protective film.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: October 12, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Kenta Kamoshida, Masahiro Ishii
  • Patent number: 6456350
    Abstract: Wave-form distortion of a reference signal or signals being supplied to an opposed electrode can be suppressed without suffering from an increase in the size of the it “window casing” structure. In a liquid crystal display device having respective pixel regions laid out in a matrix form in a display area on a liquid crystal-side surface of one transparent substrate of respective transparent substrates that are disposed opposite each other with a liquid crystal sandwiched therebetween, and also having a pixel electrode and an opposed electrode that are disposed so that these electrodes are spaced apart from each other in each of these pixel regions, the transmissivity of light travelling between respective electrodes is controlled by an electric field created between respective ones of these electrodes.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: September 24, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Keiichiro Ashizawa, Masayuki Hikiba, Kazuhiko Yanagawa, Kenta Kamoshida