发明授权
- 专利标题： Composition for liquid crystal color display
- 专利标题（中）： 液晶彩色显示的组成
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申请号： US385400申请日： 1982-05-21
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公开(公告)号： US4459218A公开(公告)日： 1984-07-10
- 发明人: Yasuyuki Yamada , Tadaaki Tanaka , Ryoichi Tukahara , Tsutomu Nishizawa
- 申请人： Yasuyuki Yamada , Tadaaki Tanaka , Ryoichi Tukahara , Tsutomu Nishizawa
- 申请人地址： JPX Tokyo
- 专利权人： Mitsui Toatsu Chemicals, Inc.
- 当前专利权人： Mitsui Toatsu Chemicals, Inc.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX55-137779 19801003
- 主分类号： C09B3/14
- IPC分类号： C09B3/14 ; C09K19/60 ; G02F1/137 ; G02F1/13 ; C09K3/34
摘要：
As dichroic dyes for use in a liquid color display device, compounds of formula (I) ##STR1## such as 4'-octylphenyl perylene-3,9-dicarboxylate are provided. These compounds have various characteristic properties. For example, (1) they have a sufficient coloring ability in small amounts; (2) they have a high dichroic ratio and show a high contrast by application and non-application of voltage; (3) they have sufficient compatibility with liquid crystals; (4) they have excellent durability, are stable, and do not reduce the performance of a display device even in long-term use.
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