发明授权
US5762826A Liquid crystal composition and a liquid crystal display element which contains it 失效
液晶组合物和含有它的液晶显示元件

Liquid crystal composition and a liquid crystal display element which
contains it
摘要:
A liquid crystal composition comprising one or more types compounds represented by general formula II: ##STR1## and one or more types of compounds selected from the group consisting of: ##STR2## wherein R, rings A and B, X, Y1, Y2, Y3, Y4 and m are defined herein.
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