Patents by Inventor Hidehito Ilsaka

Hidehito Ilsaka 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: 20110051007
    Abstract: A video processing circuit for specifying an applied voltage that is applied to a liquid crystal included in each pixel on the basis of a video signal, the video processing circuit includes a correction unit configured to, if the applied voltage specified by the video signal is a voltage of a level lower than a voltage level that is sufficient to an extent that can provide liquid crystal molecules with initial inclination angles, perform correction so that the applied voltage has a voltage level that is sufficient to an extent that can provide the liquid crystal molecules with initial inclination angles.
    Type: Application
    Filed: August 30, 2010
    Publication date: March 3, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hiroyuki HOSAKA, Hidehito Ilsaka
  • Publication number: 20050007306
    Abstract: The invention provides a display device, a direct-view display device, and a projection display device in which their apparent dynamic ranges are increased with less color change. The display device can include a light modulation device having a plurality of pixels for displaying an image according to an image signal, a light source for illuminating the light modulation device, and a light-source driving device for controlling the intensity of light emitted from the light source by controlling the period in which the light source is lit at a specified brightness per unit time.
    Type: Application
    Filed: May 24, 2004
    Publication date: January 13, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hidehito Ilsaka, Shohei Yoshida, Takashi Takeda, Hidefumi Sakata
  • Publication number: 20030086265
    Abstract: A lighting apparatus used for a projection type display is provided, which can change the incident ray volume to an optical modulation device without changing the optical output intensity of the lamp, and can exhibit excellent effects in expressive power of an image and adaptability to the use environment. The lighting apparatus of the present invention comprises; a light source, two fly-eye lenses constituting a uniform lighting device, and a shading plate arranged between these fly-eye lenses and constituting a dimming device for adjusting the amount of light of the outgoing light from the light source. The angle of inclination of the shading plate is controlled based on an image signal supplied to the optical modulation device, thereby enabling adjustment of the amount of light.
    Type: Application
    Filed: October 4, 2002
    Publication date: May 8, 2003
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hidehito Ilsaka, Shoichi Uchiyama