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US5976408A Acrylonitrile derivative, liquid crystal composition, and liquid crystal display device 失效
丙烯腈衍生物,液晶组合物和液晶显示装置

Acrylonitrile derivative, liquid crystal composition, and liquid crystal
display device
摘要:
An acrylonitrile derivative expressed by the following general formula I, a composition comprising the derivative and having an improved viscosity and optical anisotropy, and a liquid crystal display device: ##STR1## wherein rings A.sup.1 to A.sup.3 represent phenylene, cyclohexylene, dioxane, or pyrimidine, R.sup.1 represents cyano group, halogen atom, an alkyl group, or an alkoxy group, and R2 represents ##STR2##
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