| 摘要 |
PURPOSE:To prepare a large capacity liq. crystal device which is high in the response speed, operable at a low drive voltage and over a wide temp. range, and has excellent time-division characteristics, by sealing a particular liq. crystal compsn. as a liq. crystal compsn. for sealing into a new TN liq. crystal device. CONSTITUTION:A liq. crystal compsn. to be used as a liq. crystal compsn. to be sealed in a new TN liq. crystal device is a nematic liq. crystal compsn. comprising 5-30wt.% liq. crystal compsn. of formula I (wherein R is n-alkyl, a group of formula II is phenyl, and a group of formula III is pyrimidyl), 5-25wt.% liq. crystal compd. of formula IV (wherein R is n-alkyl, a group of formula V is trans-cyclohexyl, and R' is CN or F), 5-20wt.% liq. crystal compd. of formula VI (wherein R is n-alkyl and R' is n-alkyl, CN, or F), and 5-20wt.% liq. crystal compd. of formula VIII (wherein R is n-alkyl) and further an optically active substance in such an amt. as will provide a ratio of a liq. crystal layer thickness d (mum) to liq. crystal intrinsic pitch P (mum) (d/P) of 0.5-1.0.
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