发明授权
- 专利标题: Method of and apparatus for displaying halftone images
- 专利标题(中): 显示半色调图像的方法和装置
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申请号: US08883233申请日: 1997-06-26
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公开(公告)号: US06529204B1公开(公告)日: 2003-03-04
- 发明人: Shigeo Mikoshiba , Takahiro Yamaguchi , Kosaku Toda , Tsutae Shinoda , Kyoji Kariya , Toshio Ueda
- 申请人: Shigeo Mikoshiba , Takahiro Yamaguchi , Kosaku Toda , Tsutae Shinoda , Kyoji Kariya , Toshio Ueda
- 优先权: JP8-287077 19961029
- 主分类号: G09G510
- IPC分类号: G09G510
摘要:
A method of displaying a dynamic halftone image on a display panel made of pixels divides each frame of the image into subframes and turns on and off the subframes. The method includes the steps of finding a line of pixels that simultaneously display a specific intensity level in a frame and another specific intensity level in the next frame, counting the number of pixels in the line, selecting corrective pulses, which turn on/off corresponding subframes to enable/disable corresponding intensity levels, according to the counted number and a change in the specific intensity levels between the frames, and adjusting original display signals for the pixels in the line according to the corrective pulses, respectively. The method eliminates halftone disturbance and false color contours from the image even if the moving speed of the image on the display panel is high.
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