Patents by Inventor Hirofumi Koshi

Hirofumi Koshi 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 control device
    Patent number: 6219020
    Abstract: A liquid crystal display device of the present invention capable of enlarging and displaying to a high picture quality even when display data having a lower resolution than a liquid crystal panel is inputted is provided with storage element groups every drain line within latches of a liquid crystal driver. A portion of the storage element groups simultaneously captures display data. In doing so, the same liquid crystal apply voltage is outputted from drain lines corresponding to these storage element groups. Storage element groups corresponding to neighboring drain lines then simultaneously capture display data so as to enlarge an image in the horizontal direction. The rate of enlargement can be regulated by changing the number of storage element groups simultaneously capturing display data.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: April 17, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Tsutomu Furuhashi, Hiroyuki Mano, Naruhiko Kasai, Satoru Tsunekawa, Hiroshi Kurihara, Hiroyuki Nitta, Hirofumi Koshi, Yoshihisa Oishi, Nobutaka Kato
  • Liquid crystal display device
    Patent number: 6088014
    Abstract: A liquid crystal display device of the present invention capable of enlarging and displaying to a high picture quality even when display data having a lower resolution than a liquid crystal panel is inputted, is provided with storage element groups every drain line within latches of a liquid crystal driver. A portion of the storage element groups simultaneously captures display data. In doing so, the same liquid crystal apply voltage is outputted from drain lines corresponding to these storage element groups. Storage element groups corresponding to neighboring drain lines then simultaneously capture display data so as to enlarge an image in the horizontal direction. The rate of enlargement can be regulated by changing the number of storage element groups simultaneously capturing display data.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: July 11, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Tsutomu Furuhashi, Hiroyuki Mano, Naruhiko Kasai, Satoru Tsunekawa, Hiroshi Kurihara, Hiroyuki Nitta, Hirofumi Koshi, Yoshihisa Oishi, Nobutaka Kato