Patent ID: 6645397
Filing Date: 2003-11-11
Classification: C09K,G02B,G02F

Abstract:
A liquid crystal composition comprising at least one of compounds represented by the following formula (1) or formula (2) and at least one of chiral compounds whose structure change upon photoreaction: wherein, each of R1, R2, R3 and R4 represents at least one monovalent group selected from group 1 which consists of monovalent groups, each of L1 and L2 represents a single bond or at least one divalent group selected from group 2 which consists of divalent groups, each of Ar1, Ar3, Ar4 and Ar6 represents at least one divalent group selected from group 3 which consists of divalent groups, each of Ar2 and Ar5 represents at least one divalent group selected from group 4 which consists of divalent groups, and a carbon ring in groups 3 and 4 which consists of divalent groups may be substituted by at least one of a fluorine atom, a chlorine atom, a bromine atom, â€”CF3, â€”OCF3, â€”OCHF2, â€”CH3 and â€”COCH3; each of n1, n2, n3 and n4 represents 0 or 1, and n represents any one of integers from 2 to 15 and groups 1,2,3, and 4 are as follows: