| abstract |
(57) [Summary] [Object] A liquid crystal compound for a liquid crystal composition for a display device, which lowers the viscosity of the composition without narrowing the liquid crystal temperature range. [Structure] (1) General formula: [In the formula, R represents an alkyl group, an alkoxy group, a halogen atom or a cyano group having 1 to 10 carbon atoms, and the rings A and A ′ are independently substituted with a fluorine atom, a chlorine atom, a cyano group or a methyl group. Optionally 1,4-phenylene or 1,4-cyclohexylene, B is 1,2- Represents ethylene or a covalent bond, and R ′ has 1 to 1 carbon atoms Represents an alkyl group of 0, and n represents 0 or 1]. [Effect] The compound of the present invention has extremely good compatibility at low temperature in a liquid crystal composition, and is sufficiently stable under a use environment as a liquid crystal display device. Further, by adding this compound as a component of the liquid crystal composition, the viscosity can be lowered without narrowing the liquid crystal temperature range of the liquid crystal composition. |