| 摘要 |
Liquid crystal compounds having general physical properties necessary to compounds, low viscosity, proper optical anisotropy, proper anisotropy of permittivity, and excellent compatibility with other liquid crystal compounds; liquid crystal compositions having wide temperature ranges of nematic phase, low viscosity, proper optical anisotropy, and low threshold voltage; and liquid crystal displays containing the compositions. The above compounds are represented by the general formula (1): (1) wherein R1 and R2 are each C1-10 alkyl; T1, T2 and T3 are each tetrahydropyran-2,5-diyl or tetrahydropyran-3,6-diyl; A1 and A2 are each 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2, Z3 and Z4 are each a single bond or C1-4 alkylene; n and i are each 0 or 1; and j, k and m are each 0, 1 or 2. |
