Patents by Inventor Shigeharu Ino

Shigeharu Ino 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 device, method of correcting defective pixels, and defective-pixel correcting apparatus used therein
    Patent number: 5267066
    Abstract: In a liquid crystal display device having pixels arranged in a matrix form, light is allowed to pass or blocked depending upon whether or not a voltage is applied to electrodes each corresponding to the pixels, and the display operation is conducted by controlling the transmission/nontransmission of light. When a conductor or switching element connected to an electrode is broken, it is not possible to apply such a voltage to the respective electrode. Such a pixel is always at the light transmission display state, with the result that the pixel becomes a bright spot, thereby degrading the display quality. Therefore, a blocking piece for blocking light is disposed over the pixel which becomes a bright spot. This prevents the bright spot from appearing, thereby improving the display quality.
    Type: Grant
    Filed: March 26, 1992
    Date of Patent: November 30, 1993
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Syunzi Nakai, Toshio Maeda, Teruo Horii, Seiichi Kajitani, Tadashi Nishioka, Shigeharu Ino