PROBLEM TO BE SOLVED: To obtain a liq. crystal display excellent in response time and steepness by using a nematic liq. crystal mixture contg. a combination of an ester compd. with an alkenyl compd. ;SOLUTION: A nematic liq. crystal mixture used here contains 20-90wt.% liq. crystal component contg. at least one compd. having a dielectric anisotropy higher than +1.5 and represented by formula I (wherein Ra is a 1-12C alkyl; L is H or F; and (r) is 0 or 1), 10-65wt.% liq. crystal component contg. at least one compd. having a dielectric anisotropy of -1.5 to +1.5 and represented by formula II (wherein Rb is a 2-12C alkyl; Rc is F, a 1-6C alkyl, or alkoxy; each of the groups represented by formulas III is independently one of the groups represented by formulas IV; (l) is 0 or 1; and L1 and L2 are each H or F), 0-20wt.% liq. crystal component comprising at least one compd. having a dielectric anisotropy of -1.5 or lower, and an optically active component in such an amt. that the ratio of the layer thickness to the natural pitch of a chiral nematic liq. crystal mixture is about 0.2-1.3.;COPYRIGHT: (C)1998,JPO
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机译：要解决的问题：获得液体。通过使用向列液，该液晶显示器的响应时间和陡度极佳。晶体混合物续酯化合物的混合物带有烯基的化合物。 ;解决方案：向列液。此处使用的晶体混合物包含20-90wt。％的液体。晶体成分续至少有一个具有大于+1.5的介电各向异性并由式I表示（其中R a 是1-12C烷基; L是H或F;并且（r）是0或1），10-65wt 。％液体晶体成分续至少有一个具有-1.5至+1.5的介电各向异性并且由式II表示（其中R b 是2-12C烷基; R c 是F，1-6C烷基;或烷氧基;由式III表示的每个基团独立地是由式IV表示的基团之一;（l）为0或1;并且L 1 和L 2 分别为H或F），0-20wt。％liq。包含至少一种化合物的晶体组分。具有-1.5或更低的介电各向异性，并且在这种amt中具有光学活性组分。手性向列液的层厚与自然螺距之比晶体混合物约为0.2-1.3 .;版权所有：（C）1998，JPO
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