| 摘要 |
<p>A ferroelectric liquid crystal composition comprising at least one compound of the formula (I): <CHEM> wherein R<1> is a straight or branched chain alkyl or alkoxy group having 1 to 15 carbon atoms, <CHEM> are, the same or different, a phenylene group which may be substituted by a halogen or a cyclohexylene group, X is a single bond or a vinyl or cyclopropylene group, Y is a methylene group or -COO- group, Z is a mono-, di- or trifluoromethyl group, m is an integer of 1 to 15 and R<2> is a straight or branched chain alkyl group having 1 to 15 carbon atoms or a phenyl group, and a base liquid crystal material. This composition is used for a ferroelectric liquid crystal device .</p> |
