发明授权
- 专利标题: Liquid crystal apparatus
- 专利标题(中): 液晶装置
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申请号: US164504申请日: 1988-03-04
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公开(公告)号: US5182549A公开(公告)日: 1993-01-26
- 发明人: Osamu Taniguchi , Hiroshi Inoue , Atsushi Mizutome , Tadashi Mihara , Yoshihiro Onitsuka , Masahiro Terada
- 申请人: Osamu Taniguchi , Hiroshi Inoue , Atsushi Mizutome , Tadashi Mihara , Yoshihiro Onitsuka , Masahiro Terada
- 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: JPX62-51775 19870305; JPX62-78003 19870331; JPX62-143874 19870608; JPX62-188298 19870727
- 主分类号: G09G3/36
- IPC分类号: G09G3/36
摘要:
In a liquid crystal apparatus the scanning electrodes are applied with at least two scanning selection signals in at least two vertical scanning periods. The scanning selection signals comprise mutually different waveforms, each comprising a pulse of one or the opposite voltage polarity with respect to the level of a voltage applied to a scanning electrode when it is not selected. Data pulses are applied to the data electrodes in phase with the pulse. A writing voltage and a fore voltage are applied prior to the writing voltage formed by the combination of the pulse and a data voltage to a pixel on a scanning electrode during a selection period determined by application of the one or the opposite polarity to the scanning electrode. The fore voltage pulse has a polarity opposite to that of the writing voltage and an amplitude which is 1/2 or less of that of the writing voltage.
公开/授权文献
- US4315842A Hot melt composition 公开/授权日:1982-02-16
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