Patents by Inventor Shoutarou Kawakami

Shoutarou Kawakami 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).

  • Liquid crystal display panel and liquid crystal display device
    Patent number: 8962104
    Abstract: The present invention provides a liquid crystal display panel that suppresses the temperature dependence of transmittance-gradation characteristics and thus overcomes problems in which significant changes in transmittance-gradation characteristics are caused by the effects of environmental temperature and a light source to lead to the degradation of display performance, and a liquid crystal display device including the liquid crystal display panel. The liquid crystal display panel of the present invention includes a liquid crystal medium containing a plurality of liquid crystal compounds each having a negative dielectric constant anisotropy, the liquid crystal medium being held between a first substrate and a second substrate that are located opposite each other, and a side of each of the substrates in contact with the liquid crystal medium having vertical alignment properties for the liquid crystal compounds.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: February 24, 2015
    Assignees: Sharp Kabushiki Kaisha, DIC Corporation
    Inventors: Toshihiro Matsumoto, Yuichi Kawahira, Masayuki Kanehiro, Shoutarou Kawakami, Gou Sudou
  • LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20130208213
    Abstract: The present invention provides a liquid crystal display panel that suppresses the temperature dependence of transmittance-gradation characteristics and thus overcomes problems in which significant changes in transmittance-gradation characteristics are caused by the effects of environmental temperature and a light source to lead to the degradation of display performance, and a liquid crystal display device including the liquid crystal display panel. The liquid crystal display panel of the present invention includes a liquid crystal medium containing a plurality of liquid crystal compounds each having a negative dielectric constant anisotropy, the liquid crystal medium being held between a first substrate and a second substrate that are located opposite each other, and a side of each of the substrates in contact with the liquid crystal medium having vertical alignment properties for the liquid crystal compounds.
    Type: Application
    Filed: September 13, 2011
    Publication date: August 15, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Toshihiro Matsumoto, Yuichi Kawahira, Masayuki Kanehiro, Shoutarou Kawakami, Gou Sudou