发明授权
- 专利标题: Liquid crystal composition
- 专利标题(中): 液晶组成
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申请号: US593888申请日: 1996-01-30
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公开(公告)号: US5766508A公开(公告)日: 1998-06-16
- 发明人: Masaya Kawasumi , Naoki Hasegawa , Arimitsu Usuki , Akane Okada , Masaaki Tani , Yoshiaki Fukushima
- 申请人: Masaya Kawasumi , Naoki Hasegawa , Arimitsu Usuki , Akane Okada , Masaaki Tani , Yoshiaki Fukushima
- 申请人地址: JPX Aichi-ken
- 专利权人: Kabushiki Kaisha Toyota Chuo Kenkyusho
- 当前专利权人: Kabushiki Kaisha Toyota Chuo Kenkyusho
- 当前专利权人地址: JPX Aichi-ken
- 优先权: JPX7-036077 19950131; JPX7-271835 19950925
- 主分类号: G02F1/13
- IPC分类号: G02F1/13 ; C09K19/02 ; C09K19/20 ; C09K19/30 ; C09K19/52 ; C09K19/54 ; C09K19/60 ; G02F1/137
摘要:
This invention provides liquid crystal compositions for light controlling materials of light scattering type having both memory and high speed response characteristics. The composition neither needs a temperature controlling device nor a device for imparting a shear stress as a memory erasing device, because the composition comprises a two-frequency addressing liquid crystal or such liquid crystal with an ionic component. The two-frequency addressing liquid crystal responds to an electric field and exhibits a positive dielectric anisotropy or a negative dielectric anisotropy depending on the frequency region of the electric field. Because the flat shaped particles of the present invention exhibit an affinity with the liquid crystal, the particles are dispersed in the liquid crystal and form liquid crystal domains effectively.
公开/授权文献
- US4570420A Method and apparatus for closing and stacking boxes 公开/授权日:1986-02-18
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