发明授权
- 专利标题: Circuit for driving a liquid crystal display device
- 专利标题(中): 用于驱动液晶显示装置的电路
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申请号: US513338申请日: 1990-04-20
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公开(公告)号: US5159326A公开(公告)日: 1992-10-27
- 发明人: Katsunori Yamazaki , Mitsuo Nagata
- 申请人: Katsunori Yamazaki , Mitsuo Nagata
- 申请人地址: JPX Tokyo
- 专利权人: Seiko Epson Corporation
- 当前专利权人: Seiko Epson Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX62-202154 19870813; JPX63-27922 19880209; JPX63-27923 19880209; JPX63-27924 19880209; JPX1-100683 19890420
- 主分类号: G09G3/36
- IPC分类号: G09G3/36
摘要:
A mechanism for driving a matrix liquid crystal display which compensates for cross talk due to changes in temperature is provided. A matrix liquid crystal display has two substrates and a liquid crystal layer sandwiched between the two substrates. A group of common electrodes is formed on one substrate. A group of segment electrodes is formed on the other substrate. The common electrodes intersect with the segment electrode. A voltage is provided at the common electrodes and segment electrodes to produce a voltage waveform for driving the liquid crystal. A voltage waveform compensation circuit changes the voltages waveform in accordance with the pattern of drawings or characters to be displayed in the liquid crystal display device to produce the desired display and in accordance with at least one of an ambient temperature and a temperature of the liquid crystal display.
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