| 摘要 |
Subject The subject is to provide a liquid crystal compound not only having a large negative dielectric anisotropy, a high clearing point and a low viscosity, but also having at least one of characteristics such as stability to heat, light or the like, a suitable refractive index anisotropy, a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. Means for Solving the Subject The invention provides a compound represented by formula (1-1) or (1-2).
For example, R 1 and R 2 are independently hydrogen, alkyl having 1 to 10 carbons or alkoxy having 1 to 9 carbons; the ring A 1 , the ring A 2 , the ring A 3 , the ring A 4 , the ring A 5 and the ring A 6 are independently 1,4-cyclohexylene or 1,4-phenylene; a, b, c, d, e and f are independently 0 or 1, and the sum of a, b, c, d, e and f is 2; and g, h, i, j, k and 1 are independently 0 or 1, and the sum of g, h, i, j, k and 1 is 2. |
