| abstract |
(57) [Abstract] [Objective] It is an object of the present invention to provide a novel compound which, when contained in a liquid crystal mixture, can broaden the temperature range of the smectic C * phase and shorten the pulse duration required for switching. [Structure] A compound represented by the following formula (I): [Wherein R 1 and R 2 are, for example, a linear or branched alkyl group, and A is 1,4-phenylene, pyridine-2,5- Mesogenic groups such as diyl and pyrimidine-2,5-diyl, M is -O-, -CO-O-, -O-CO-, -C. H 2 —O—, —O—CH 2 — and other spacer groups]. |