Invention Grant
US07804470B2 Temperature adaptive overdrive method, system and apparatus 有权
温度自适应过驱动方式,系统和装置

  • Patent Title: Temperature adaptive overdrive method, system and apparatus
  • Patent Title (中): 温度自适应过驱动方式,系统和装置
  • Application No.: US11690632
    Application Date: 2007-03-23
  • Publication No.: US07804470B2
    Publication Date: 2010-09-28
  • Inventor: Eunice Poon
  • Applicant: Eunice Poon
  • Applicant Address: JP Tokyo
  • Assignee: Seiko Epson Corporation
  • Current Assignee: Seiko Epson Corporation
  • Current Assignee Address: JP Tokyo
  • Agent Mark P. Watson
  • Main IPC: G09G3/36
  • IPC: G09G3/36
Temperature adaptive overdrive method, system and apparatus
Abstract:
A method and system for calculating an overdrive parameter for a liquid crystal within an LCD device to compensate for temperature variations. An example system includes a temperature sensor for measuring an ambient temperature near a liquid crystal and a memory for storing a lookup table containing a plurality of overdrive parameters. Each overdrive parameter corresponds to a graylevel transition between a previous frame and a current frame, and represents a level at which a liquid crystal is driven in order to achieve a desired response time for the graylevel transition at a reference temperature. A processor extracts the appropriate overdrive parameter from the lookup and calculates an adapted overdrive parameter that adjusts for the difference between the measured ambient temperature and the reference temperature.
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