Patent ID: 6495067
Filing Date: 2002-12-17
Classification: C09B,H01G,H01L,Y02E

Abstract:
A liquid crystal compound represented by formula (I-1) or (I-2): wherein Q111 represents a divalent linking group with the proviso that Q111 does not represent a polymethylene group nor a phenylenebis(poly)methylene group without containing a hetero atom; X111âˆ’ represents an anion; R141, R151, R161, and R171 each represent a hydrogen atom or a substituent; R131 represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted alkenyl group; Y111 represents a divalent 4-, 5-, 6- or 7-membered ring or a divalent condensed ring composed of their rings; Q121 and Q131 each represent a divalent linking group or a single bond; n represents 1, 2 or 3; when n is 2 or 3, the plural Y111's, Q121's, and Q131's may be the same or different.