| abstract |
A liquid crystal composition comprising at least one mesomorphic compound represented by the followingn formula (I):n wherein R 1 and R 2 respectively denote a linear or branched alkyl group having 1 - 16 carbon atoms optionally substituted; Z 1 denotes a single bond, -0-, -COO- or -OCO-, X 1 denotes halogen; and A 1 denotes a single bond orn and at least one mesomorphic compound represented by the following formula (II):n n wherein R 3 and R4 respectively denote an alkyl group having 2 - 16 carbon atoms optionally substituted; Y 1 denotes a single bond,n Z 2 and Z 3 respectively denote a single bond, -0 - ,n orn A2 and A3 respectively denote a single bond,n n n X 2 and X 3 respectively denote hydrogen, F, Cl, Br, -CH 3 , -CN or -CF 3 ; and k is 0 or 1 with the proviso that Z 2 is a single bond when A 2 is a single bond, and Z 3 is a single bond when As is a single bond and k is 0. The liquid crystal composition is easily aligned by a simple rubbing method to provide a uniform monodomain and further provides wider driving voltage and temperature margins effective for providing a practical ferroelectric liquid crystal device. |