| 摘要 |
A liquid crystal composition for twist nematic mode having improved reduction in the threshold voltage and the temperature dependency of threshold voltage in the liquid crystal display element using the composition, and a liquid crystal display element are provided, which composition comprises a compound of the formula (see fig. I) wherein R1 is 1-8C alkyl, R2 is F or CN and n is 1 or 2; or comprises the compound of the formula (I) as a first component and at least one member as a second component selected from compounds of the following formulas (II), (III) and (IV); (see fig. II) wherein R3 is 1-8C alkyl and R4 is H or F, (see fig. III) wherein R5 is 1-8C alkyl, R6 is 1-8C alkoxy or F, m is 1 or 2 and X is single bond or -COO-, and (see fig. IV) wherein R7 is 1-8C alkyl, R8 is 1-8C alkyl or alkoxy, F or CN and (see fig. V) is (see fig. VI) or (see fig. VII).
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