Patents by Inventor Hikaru Akutsu

Hikaru Akutsu 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).

  • Active matrix type liquid crystal display device
    Patent number: 7777737
    Abstract: Power consumption in an active matrix type liquid crystal display device having partial display function is reduced. In one frame period, a display area corresponding to first 80 horizontal periods, that is the first line through the 80th line, is set as a partial display area and a display area corresponding to the remaining 239 lines is set as a background display area. And a partial display area control signal ENBSC is set at a low level and an SC inversion drive is performed in the partial display area. The partial display area control signal ENBSC is fixed at a high level in the background display area and all of SC inversion control units corresponding to the background display area halt their operation.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: August 17, 2010
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hikaru Akutsu, Yusuke Tsutsui, Makoto Kitagawa
  • Active matrix type liquid crystal display device
    Publication number: 20060208992
    Abstract: Power consumption in an active matrix type liquid crystal display device having partial display function is reduced. In one frame period, a display area corresponding to first 80 horizontal periods, that is the first line through the 80th line, is set as a partial display area and a display area corresponding to the remaining 239 lines is set as a background display area. And a partial display area control signal ENBSC is set at a low level and an SC inversion drive is performed in the partial display area. The partial display area control signal ENBSC is fixed at a high level in the background display area and all of SC inversion control units corresponding to the background display area halt their operation.
    Type: Application
    Filed: November 28, 2005
    Publication date: September 21, 2006
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Hikaru Akutsu, Yusuke Tsutsui, Makoto Kitagawa