Patents Assigned to Hiroshima Opt Corporation
  • Liquid crystal display device
    Patent number: 6407783
    Abstract: A liquid crystal display device has a light shielding layer 21 at a portion excluding a display pattern on a transparent substrate 12 wherein material for the light shielding layer has an electrical insulation property of not less than 1012 &OHgr;/□ in terms of insulation resistance and an optical density (OD value) of not less than 2.0 per a film thickness of 1 &mgr;m.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: June 18, 2002
    Assignees: Optrex Corporation, Hiroshima Opt Corporation, Nippon Steel Chemical Co., Ltd.
    Inventors: Masao Ohgawara, Shinsuke Iguchi, Masanori Kohno, Takero Teramoto, Naoki Yokoyama, Kizo Hattori