Patents Examined by Matthew Luo
  • LCD controller, LCD apparatus, information processing apparatus and method of operating same
    Patent number: 5742269
    Abstract: A method and apparatus for removing the effect of data voltages for the last display line of a liquid crystal display (LCD) on the first line of the display. Prior to a horizontal line period, immediately before a data signal for the last display line is transferred to a driver, and a scanning electrode for the first display line of the following frame is turned on, signal electrodes are precharged with a voltage corresponding to data for the first display line of the following frame.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: April 21, 1998
    Assignee: International Business Machines Corporation
    Inventors: Fumiei Hayashiguchi, Takayuki Tokuda