Patents Examined by B K Talbot
  • Method for producing liquid crystal display and method for cleaning substrate
    Patent number: 6444255
    Abstract: An electrode substrate is brush cleaned with a hydrogen gas dissolved water, which has an oxidation-reduction potential of −860 mV to −400 mV and a pH of 8 to 12, before applying an alignment layer material on the electrode substrate. Thus, it is possible to decrease the manufacturing costs without decreasing the detergency.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: September 3, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshiyuki Nagahara, Naoya Hayamizu, Naoaki Sakurai, Noriko Okoshi, Toshitaka Nonaka, Hiroaki Furuya