| 摘要 |
PURPOSE:To prepare a ferroelectric liq. crystal material which easily exhibits a liq. crystal phase over a wide temp. range including room temp. and enables a high speed response, by adding a liq. crystal material exhibiting nonchiral smectic C phase to a ferroelectric liq. crystal material in particular proportions. CONSTITUTION:A liq. crystal compsn. prepd. by adding at least one liq. crystal material exhibiting nonchiral smectic C phase in an amt. of at least 30-70wt.% to a ferroelectric liq. crystal material. Examples of the liq. crystal material include a compd. of formula 1 (wherein R and R' are each an alkyl, alkoxy, or acyloxy group).
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