| 摘要 |
<p>A liquid crystal composition comprising (1) at least one compound selected from those expressed by the formula (I) and (2) at least one compound selected from those expressed by the formulas (II), (III), (IV) and (V): <CHEM> wherein R1 to R5 are C1-10 alkyl; R6 and R7 are C1-10 alkyl or alkenyl; X is H or F; X1 and X2 are F, -CF3, -OCF3, -CHF2 or -OCHF2; Y1 and Y2 are H or F; Z1, Z2 and Z4 are -COO-, -CH2CH2-or a single bond; Z3, Z5 and Z6 are -COO-, -CH2CH2-, -C IDENTICAL C- or a aingle bond; and A is <CHEM> which composition is provided with characteristics of high specific resistance, low viscosity while keeping small current consumption, a suitable clearing point and threshold voltage.</p> |
