Patents Examined by Walter Malinowki
  • Patent number: 5815223
    Abstract: A display device including a liquid crystal held between an active matrix substrate made up by arranging thin film transistors thereon, each using polycrystalline silicon as a semiconductor layer, in one-to-one relation to intersections between a plurality of signal lines and a plurality of scan lines, and an opposite substrate opposed to the active matrix substrate, wherein the active matrix substrate includes a film having tensile stress disposed at least below or above the semiconductor layer.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: September 29, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takanori Watanabe, Mamoru Miyawaki, Shunsuke Inoue, Tetsunobu Kochi