申请人:Secretary of State for Defence
in Her Britannic Majesty's Gov.
of the United Kingdom of
Great Britain and Northern Ireland
公开号:EP0049036A1
公开(公告)日:1982-04-07
A material suitable for a guest-host liquid crystal device comprises a solution of a liquid crystal material and a pleochroic dye wherein the pleochroic dye comprises at least one compound having a formula:
wherein one of X and Y is OH and the other is NHR wherein R is H or lower alkyl; each of R1 and R2 independently represents alkyl, aryl, aralkyl, alkoxy or -NR3R4 wherein each of R3 and R4 is independently H or lower alkyl, provided that R2 is always adjacent to an OH group.
一种适用于客主液晶装置的材料包括液晶材料和褶染染料的溶液,其中褶染染料包括至少一种具有以下式子的化合物: 其中 X 和 Y 中的一个是 OH,另一个是 NHR,其中 R 是 H 或低级烷基;R1 和 R2 中的每一个独立地代表烷基、芳基、芳烷基、烷氧基或-NR3R4,其中 R3 和 R4 中的每一个独立地代表 H 或低级烷基,条件是 R2 始终与 OH 基团相邻。