| abstract |
(57) [Summary] [Structure] General Formula (I) (In the formula, R 1 and R 2 ; an alkyl group having 1 to 18 carbon atoms, X; —O— or a single bond). [Effect] The compound of the general formula (I) has low viscosity and high liquid crystallinity. Furthermore, a ferroelectric liquid crystal composition containing this compound can respond at high speed, has a wide temperature range, and is excellent in orientation. Therefore, it is useful as a material for a liquid crystal display device. |