发明授权
- 专利标题: Liquid crystal apparatus and display system
- 专利标题(中): 液晶装置和显示系统
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申请号: US426083申请日: 1989-10-24
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公开(公告)号: US5233447A公开(公告)日: 1993-08-03
- 发明人: Masaki Kuribayashi , Yukiko Futami , Hiroshi Inoue , Akira Tsuboyama , Yutaka Inaba
- 申请人: Masaki Kuribayashi , Yukiko Futami , Hiroshi Inoue , Akira Tsuboyama , Yutaka Inaba
- 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: JPX63-271812 19881026; JPX63-271813 19881026; JPX63-280122 19881105; JPX63-280123 19881105
- 主分类号: G09G3/20
- IPC分类号: G09G3/20 ; G09G3/36
摘要:
A liquid crystal apparatus, includes: a) a liquid crystal device comprising an electrode matrix composed of scanning electrodes and data electrodes, and a ferroelectric liquid crystal showing a first and a second orientation state; and b) a driving means including: a first drive means for applying a scanning selection signal to the scanning electrodes two or more scanning electrodes apart in one vertical scanning so as to effect one picture scanning in plural times of vertical scanning, said scanning selection signal having a voltage of one polarity and a voltage of the other polarity with respect to the voltage level of a nonselected scanning electrode, and a second drive means for applying to a selected data electrode a voltage signal which provides a voltage causing the first orientation state of the ferroelectric liquid crystal in combination with the voltage of one polarity of the scanning selection signal, and applying to another data electrode a voltage signal which provides a voltage causing the second orientation state of the ferroelectric liquid crystal in combination with the voltage of the other polarity of the scanning selection signal.
公开/授权文献
- US5555051A Back-focus adjusting device for a video camera 公开/授权日:1996-09-10
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