发明授权
US06791521B2 Liquid crystal display device having a gray-scale voltage selector circuit
有权
具有灰度级电压选择电路的液晶显示装置
- 专利标题: Liquid crystal display device having a gray-scale voltage selector circuit
- 专利标题(中): 具有灰度级电压选择电路的液晶显示装置
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申请号: US10084942申请日: 2002-03-01
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公开(公告)号: US06791521B2公开(公告)日: 2004-09-14
- 发明人: Hironobu Isami , Iwao Takemoto , Toshio Miyazawa , Katsumi Matsumoto
- 申请人: Hironobu Isami , Iwao Takemoto , Toshio Miyazawa , Katsumi Matsumoto
- 优先权: JP2001-059394 20010305
- 主分类号: G09G336
- IPC分类号: G09G336
摘要:
A liquid crystal display device has a circuit for selecting voltage levels based upon display data from an externally-supplied gray-scale voltage varying periodically. The circuit includes a plurality of series combinations of processing circuits. Each of the series combinations is associated with one of video signal lines coupled to pixels, and each of the processing circuits of a respective one of the plural series combinations is associated with a respective one of N display data lines for supplying the display data and with a respective one of plural time control signal lines for supplying time control signals varying in synchronism with the gray-scale voltage. Each of the processing circuits is disposed between two adjacent ones of the N display data lines. The time control signals uniquely determine one level of the gray-scale voltage in combination with the time control signals.