Patents by Inventor Shigeki Hirohata

Shigeki Hirohata 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).

  • Display device and method for driving the same
    Patent number: 6771243
    Abstract: To provide a display device and a method for driving the same with which image degradation can be reduced that would occur in producing animated images on the display device. Values of luminance are obtained for successive frames. When a difference between them is equal to or larger than a threshold value, a display signal having a black period is generated. When a luminance of a previous frame is higher than a luminance of a subsequent frame, a display signal having a black period provided after a video display period is generated. On the other hand, when a luminance of a previous frame is equal to or lower than a luminance of a subsequent frame, a display signal having a black period provided before a video display period is generated.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: August 3, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Shigeki Hirohata
  • Display device and method for driving the same
    Publication number: 20020097252
    Abstract: To provide a display device and a method for driving the same with which image degradation can be reduced that would occur in producing animated images on the display device.
    Type: Application
    Filed: January 22, 2002
    Publication date: July 25, 2002
    Inventor: Shigeki Hirohata