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61.
公开(公告)号:US4514045A
公开(公告)日:1985-04-30
申请号:US436030
申请日:1982-10-22
IPC分类号: C09K19/60 , C07C205/06 , C07F3/02 , C09B1/20 , C09B1/50 , C09B1/54 , C09B1/56 , C09B5/24 , C09B19/02 , C09B23/01 , C09B23/10 , C09B29/01 , C09B29/08 , C09B29/15 , C09B29/28 , C09B29/36 , C09B31/02 , C09B31/16 , C09B33/04 , C09B35/00 , C09B56/00 , C09B57/00 , C09K19/54 , G02F1/13 , G02F1/133 , G02F1/137 , G09F9/35 , C09K3/34
CPC分类号: C09K19/54 , C07C205/06 , C07F3/02 , C09B1/20 , C09B1/50 , C09B1/542 , C09B1/56 , C09B19/02 , C09B23/0091 , C09B23/10 , C09B23/105 , C09B23/107 , C09B29/0003 , C09B29/081 , C09B29/103 , C09B29/28 , C09B29/36 , C09B31/02 , C09B31/16 , C09B33/04 , C09B35/00 , C09B5/2472 , C09B56/00 , C09B57/00 , C09K19/60 , G02F1/13
摘要: A composition for use in thermally-addressable liquid crystal display devices, comprising a smectic liquid crystal material and a helichromic compound possessing both a chromophoric moiety and an optically-active moiety. The helichromic compound is a circularly dichroic dye capable of propagating incident visible light in a circularly polarized manner so that all polarizations of the incident light are absorbed. The composition comprising the helichromic compound can be utilized in thermally-addressable liquid crystal display devices to provide a display which operates at lower voltages, with faster response times, and higher contrast ratios.
摘要翻译: 一种用于可热寻址的液晶显示装置的组合物,其包含具有发色团部分和光学活性部分的近晶液晶材料和双重铬化合物。 螺旋染料化合物是能够以圆偏振方式传播入射可见光的环状二色性染料,使得入射光的所有偏振被吸收。 包含双重铬酸盐化合物的组合物可用于热寻址液晶显示装置中,以提供在较低电压下操作的显示器,响应时间更快,对比度更高。