Patents by Inventor Toshihiko Kamizono

Toshihiko Kamizono 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: 6407795
    Abstract: A liquid crystal panel (1) includes plural signal lines and scanning lines disposed in matrix, and liquid-crystal-driving LSIs (5, 6) having input and output portions directly connected by thermocompression bonding with an anisotropically conductive adhesive (9). The LSIs are mounted on a conductor on a rim of the panel. Film jumper boards (10, 14), the respective numbers of which correspond to the number of the driving LSIs (5, 6), connects between a terminal conductor (21) at the rim of the liquid crystal panel (1) and circuit boards (12, 16). As a result, a liquid crystal display which can be designed freely, can be modified easily, can employs common components, and can have a defective driving LSI specified and repaired readily and accurately is provided. A method of inspecting the display is also provided.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: June 18, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshihiko Kamizono, Hiroshi Kinoshita, Tsuyoshi Ishigame
  • Patent number: 6246385
    Abstract: To eliminate display unevenness caused by lateral luminance error or longitudinal luminance error or crosstalk in image display on liquid crystal panel by using a low-cost drive circuit, relating to a liquid crystal panel 14 having 2N scanning lines (12) arranged in the horizontal direction, and M signal lines (10, 11) disposed in the vertical direction, in which the scanning lines (12) are driven simultaneously at both ends by using scanning line left drive circuit (17A) and scanning line right drive circuit (17B). Drive pulses are sequentially applied to the scanning lines (12) at addresses X1 to X2N to turn on the individual scanning lines (12). Necessary voltage pulses are simultaneously applied to the signal lines (10, 11) at addresses Y1 to YM to control each pixel. As compared with the conventional method of one-end driving, the luminance error is reduced to ¼, and it is effective for enhancing the picture quality, especially in large-sized liquid crystal panels.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: June 12, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroshi Kinoshita, Toshihiko Kamizono