| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid crystal composition which expands the operating temperature range of a liquid crystal display device property, reduces the driving voltage, improves the temperature dependence of the driving voltage and achieves a relatively fast response for a specific driving voltage by blending compounds selected from two groups. SOLUTION: A nematic liquid crystal contains a liquid crystal component A consisting of a compound selected from the group of formulas I and II an a compound selected from the group of formulas III-VII, wherein R1 is a 1-10C alkyl or an alkenyl; Q1 is F, Cl, CF3 or the like; X1 and W1-6 are each H, F, Cl, CF3 or the like; K1-K5 are each a single bonding, -COO- or the like; ring A0 is 1,4-phenylene or the like; ring A1-A4 are each 1,4-phenylene or the like; k1-k8 are each 0 or 1; k3+k4 is 0 or 1; and k5+k6+k7+k8 is 0, 1, or 2. A nematic liquid crystal composition is obtained by blending the component A, 0-99.9 wt.% of a liquid crystal component B consisting of a compound having a dielectric constant aeolotropy of least +2 and 0-85 wt.% of a liquid crystal component C consisting of a compound having a dielectric constant aeolotropy of -10-+2, where the total of the components B and C is 0-99.9 wt.%.
|
