发明申请
US20070052665A1 Driving scheme for an electrophoretic display 有权
电泳显示器的驱动方案

  • 专利标题: Driving scheme for an electrophoretic display
  • 专利标题(中): 电泳显示器的驱动方案
  • 申请号: US10557683
    申请日: 2004-05-17
  • 公开(公告)号: US20070052665A1
    公开(公告)日: 2007-03-08
  • 发明人: Guofu ZhouMark Johnson
  • 申请人: Guofu ZhouMark Johnson
  • 国际申请: PCT/IB04/01700 WO 20040517
  • 主分类号: G09G3/34
  • IPC分类号: G09G3/34
Driving scheme for an electrophoretic display
摘要:
A display device (1) has electrophoretic particles (8, 9), a display element including electrodes (5, 6), between which a portion of the electrophoretic particles (8, 9) is present, a temperature sensor (25) and a processor (15) for supplying a driving pulse (32) to the electrodes (5, 6) to bring the display element to a predetermined black, gray or white state, corresponding to the image information to be displayed. For improved grayscale accuracy and optimal picture and text quality, the processor (15) is further arranged to supply pre-pulses (31) preceding the driving pulses (32). The energy of the pre-pulses (31) is increased with increased temperature measured by the temperature sensor (25) and is sufficient to release the electrophoretic particles at a first position near one of the two electrodes (5, 6), but too low to enable the particles to reach a second position near the other electrode (5 or 6).
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