Patent ID: 6274208
Filing Date: 2001-08-14
Classification: C09K,G02F

Abstract:
A liquid crystal composition exhibiting, as a whole, a cholesteric phase having bistability in an absence of an electric field and being capable of transforming, in response to an application of an electric field, between stable states, said stable states including a planar state and a focal-conic state, said liquid crystal composition comprising:a nematic liquid crystal composition comprising:a liquid crystal tolan compound including a tolan unit therein;a liquid crystal ester compound including an ester unit therein; anda liquid crystal phenylcyclohexane compound including a phenylcyclohexane unit therein; andat least one chiral agent which has optical activity;wherein said liquid crystal tolan compound, said liquid crystal ester compound, said liquid crystal phenylcyclohexane compound and said at least one chiral agent have mutually different chemical structures.