Invention Grant
US08477088B2 Display device and display driving method including a voltage controller and a signal amplitude reference voltage changer 失效
显示装置和显示驱动方法,包括电压控制器和信号幅度参考电压变换器

  • Patent Title: Display device and display driving method including a voltage controller and a signal amplitude reference voltage changer
  • Patent Title (中): 显示装置和显示驱动方法,包括电压控制器和信号幅度参考电压变换器
  • Application No.: US12222856
    Application Date: 2008-08-18
  • Publication No.: US08477088B2
    Publication Date: 2013-07-02
  • Inventor: Atsushi Ozawa
  • Applicant: Atsushi Ozawa
  • Applicant Address: JP Tokyo
  • Assignee: Sony Corporation
  • Current Assignee: Sony Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Rader, Fishman & Grauer PLLC
  • Priority: JP2007-243607 20070920
  • Main IPC: G09G3/30
  • IPC: G09G3/30
Display device and display driving method including a voltage controller and a signal amplitude reference voltage changer
Abstract:
A display device includes a display panel unit configured to include pixel circuits in each of which an organic electroluminescence device is used as a light emitting device and is driven to emit light with luminance dependent upon a voltage difference between a signal value voltage of an input display data signal and a signal amplitude reference voltage. The display device further includes: a voltage controller configured to carry out grayscale value detection for a display data signal to be supplied to the display panel unit in every predetermined period, and create voltage control information of the signal amplitude reference voltage by using a detected grayscale value; and a signal amplitude reference voltage changer configured to change a voltage value of the signal amplitude reference voltage to be supplied to the pixel circuits of the display panel unit, based on voltage control information created by the voltage controller.
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