Ferroelectric liquid crystal device

摘要

PCT No. PCT/GB93/02422 Sec. 371 Date Jul. 5, 1995 Sec. 102(e) Date Jul. 5, 1995 PCT Filed Nov. 22, 1993 PCT Pub. No. WO94/12591 PCT Pub. Date Jun. 9, 1994Multiplex addressed ferroelectric liquid crystal devices containing liquid crystal mixtures composed of components A, B and C. Component A consists of one or more optically active compounds capable of imparting a spontaneous polarization to the material. Component B is a compound or compounds of the formula: <IMAGE> where R1 and R2 independently represent straight or branched chain C3-C12alkyl or alkoxy groups, a, b and c are independently 0, 1 or 2 and the total of a+b+c is not greater than 4. Component C is selected from a range of liquid crystal components.