| 摘要 |
<p>To provide a liquid crystal compound that has stability to heat, light and so forth, keeps a nematic phase in a wide temperature range, has a small viscosity, a suitable optical anisotropy and a suitable elastic constant K 33 , and further has a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The liquid crystal compound includes a compound represented by formula (1):
wherein, for example, R 1 is alkyl having 1 to 10 carbons, R 2 is alkoxy having 1 to 10 carbons; ring A 1 , ring A 2 and ring A 5 are 1, 4-cyclohexylene, 1,4-phenylene, or 1,4-phenylene in which arbitrary hydrogen is replaced by fluorine; Z 1 and Z 4 are a single bond, -CH 2 CH 2 - or -CH=CH-; a, b and e are 0 or 1, and c and d is 0; X 1 , X 2 and X 4 are hydrogen, and X 3 is fluorine; and L 1 and L 2 are fluorine.</p> |
