Patents by Inventor Kouji Kusuda

Kouji Kusuda 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).

  • Patent number: 8218108
    Abstract: The present invention provides a liquid crystal display device excellent in display qualities, capable of suppressing coloring of stains such as a fingerprint which has adhered to a surface of a display so that the stains are not recognized. The present invention is a liquid crystal display panel having a structure in which the first polarizer, the first substrate, a liquid crystal layer, the second substrate, and the second polarizer are stacked in this order toward a display surface, wherein the second polarizer includes an anti-reflective film on a display surface side, a reflection spectrum of the anti-reflective film having a bottom wavelength of less than 550 nm, at least one of the first and second substrates includes a color filter including three colors of blue, green, and red, and in the color filter, blue has the highest depolarization property of all the three colors.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: July 10, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nobuhiko Nakai, Kouji Kusuda
  • Publication number: 20100296028
    Abstract: The present invention provides a liquid crystal display device excellent in display qualities, capable of suppressing coloring of stains such as a fingerprint which has adhered to a surface of a display so that the stains are not recognized. The present invention is a liquid crystal display panel having a structure in which the first polarizer, the first substrate, a liquid crystal layer, the second substrate, and the second polarizer are stacked in this order toward a display surface, wherein the second polarizer includes an anti-reflective film on a display surface side, a reflection spectrum of the anti-reflective film having a bottom wavelength of less than 550 nm, at least one of the first and second substrates includes a color filter including three colors of blue, green, and red, and in the color filter, blue has the highest depolarization property of all the three colors.
    Type: Application
    Filed: September 10, 2007
    Publication date: November 25, 2010
    Inventors: Nobuhiko Nakai, Kouji Kusuda
  • Publication number: 20090135492
    Abstract: The present invention provides an antireflective film, a polarizer, a liquid crystal display element, and a display element, each of which makes it possible for light reflected on a surface to which stains have adhered and on a surface where the stains have remained even after being wiped off to be recognized as an almost achromatic color, thereby suppressing the stains having adhered to the surface such as fingerprint from being recognized to shine in blue. The reflective display film of the present invention is an anti-reflective film which is placed on a base material and reduces light reflected on a surface of the base material, wherein a reflection spectrum of the anti-reflective film has a bottom wavelength of less than 550 nm.
    Type: Application
    Filed: March 30, 2007
    Publication date: May 28, 2009
    Inventors: Kouji Kusuda, Nobuhiko Nakai