| abstract |
High stability to ultraviolet rays and heat, high clearing point, low minimum temperature of liquid crystal phase, small viscosity, appropriate optical anisotropy, large dielectric anisotropy, excellent phase with other liquid crystalline compounds A liquid crystal compound satisfying at least one of physical properties such as solubility, a liquid crystal composition containing the compound, and a liquid crystal display device containing the composition. A compound represented by formula (1), a liquid crystal composition containing the compound, and a liquid crystal display device containing the composition. (R a and R b are alkyl, etc .; A 1 , A 2 , and A 3 are 1,4-cyclohexylene, 1,4-phenylene, etc .; G is represented by the formula (pr-1) or (pr-2) A divalent group; Z 1 , Z 2 , and Z 3 are a single bond, alkylene, etc .; a and b are 0, 1, 2, or 3; the sum of a and b ≦ 4) [Selection figure] None |