发明授权
- 专利标题: Ferroelectric liquid crystal electro-optic apparatus and manufacturing method thereof
- 专利标题(中): 铁电液晶电光装置及其制造方法
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申请号: US328363申请日: 1989-03-24
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公开(公告)号: US5046823A公开(公告)日: 1991-09-10
- 发明人: Kahoru Mori , Yuichiro Yamada , Norio Yamamoto , Masao Tokunaga , Ichiro Kawamura , Yoshiichi Suzuki , Takashi Hagiwara , Yoshihiko Aihara , Noriko Yamakawa , Shigenori Sakuma
- 申请人: Kahoru Mori , Yuichiro Yamada , Norio Yamamoto , Masao Tokunaga , Ichiro Kawamura , Yoshiichi Suzuki , Takashi Hagiwara , Yoshihiko Aihara , Noriko Yamakawa , Shigenori Sakuma
- 申请人地址: JPX Kariya JPX Tokyo
- 专利权人: Nippondenso Co., Ltd.,Showa Shell Sekiyu K.K.
- 当前专利权人: Nippondenso Co., Ltd.,Showa Shell Sekiyu K.K.
- 当前专利权人地址: JPX Kariya JPX Tokyo
- 优先权: JPX63-70212 19880324; JPX63-109724 19880502; JPX63-122679 19880519; JPX63-309615 19881207; JPX63-331308 19881227; JPX63-331593 19881228
- 主分类号: C09K19/20
- IPC分类号: C09K19/20 ; G02F1/141 ; G09G3/36
摘要:
There is disclosed herein a ferroelectric liquid crystal electro-optical apparatus of the maxtrix type comprising a liquid crystal cell having first and second electrode substrates which include n striped line electrodes and m striped column electrodes, respectively, facing at right angles each other. A ferroelectric liquid crystal is put in therebetween so as to form n by m indication picture elements. Also included in the apparatus a scanning drive device adapted to supply a scanning signal and a data signal to the n striped line electrodes and the m striped column electrodes, respectively. The ferroelectric liquid crystal shows three stable states in accordance with an application voltage and has a light transmittance with a hysteresis sufficient to a dynamic drive in accordance with increase or decrease in the application voltage in a predetermined voltage range. The scanning drive device produces a first combination signal as a signal running to variation from a voltage below a refernece voltage in a predetermined one polarity voltage range to a voltage above the reference voltage and produces a second combination signal as a signal which does not exceed the reference voltage in the range, and supplies a direct-current combination signal between the electrodes after the supply of the first and second combination signal thereto.
公开/授权文献
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