发明授权
- 专利标题: Liquid crystal apparatus and driving method
- 专利标题(中): 液晶装置及驱动方法
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申请号: US434990申请日: 1995-05-04
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公开(公告)号: US5691740A公开(公告)日: 1997-11-25
- 发明人: Yoshihiro Onitsuka , Hiroshi Inoue , Osamu Taniguchi , Atsushi Mizutome , Tadashi Mihara , Akira Tsuboyama
- 申请人: Yoshihiro Onitsuka , Hiroshi Inoue , Osamu Taniguchi , Atsushi Mizutome , Tadashi Mihara , Akira Tsuboyama
- 申请人地址: JPX Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX62-083277 19870403; JPX62-143872 19870608; JPX62-143873 19870608; JPX62-144749 19870609
- 主分类号: G09G3/20
- IPC分类号: G09G3/20 ; G09G3/36
摘要:
A liquid crystal display apparatus having scanning electrodes, data electrodes, and ferroelectric liquid crystal material placed between the scanning electrodes and the data electrodes. Scanning signals are applied sequentially to the scanning electrodes to select a scanning electrode. Data signals are applied in synchronization with the scanning signals to place a voltage at the intersection of the data electrode and the selected scanning electrode which will place the ferroelectric material at the intersection into the desired optical state. The scanning signals and the data signals are such that pixels located at the intersection of the non selected scanning electrodes and data electrodes receive an AC voltage superimposed onto a DC voltage. Pixels on selected scanning electrodes may also receive the AC voltage superimposed onto the DC voltage. The DC voltage has its polarity inverted with every vertical scanning period.
公开/授权文献
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