Patent ID: 6207075
Filing Date: 2001-03-27
Classification: C09K

Abstract:
A liquid crystal composition comprising a first component which is at least one member selected from the group consisting of compounds expressed by the formulae (I-a) and (1-b) ##STR40##wherein R.sup.1 denotes an alkyl group having from 1 to 10 carbon atoms wherein one CH.sub.2 group may be replaced by oxygen atom or --CH.dbd.CH-- group; and n denotes 0 to 20,a second component which is at least one member selected from the group consisting of compounds expressed by the formulae II-a, II-b, II-c and II-d ##STR41##wherein R.sup.1 denotes an alkyl group having from 1 to 10 carbon atoms wherein one CH.sub.2 group may be replaced by oxygen atom or --CH.dbd.CH-- group; and n denotes 0 to 20, anda third component which is at least one member selected from the group consisting of compounds expressed by the formulae III-a, III-b and III-c ##STR42##wherein R.sup.2 denotes an alkyl group having from 1 to 10 carbon atoms wherein one CH.sub.2 group may be replaced by oxygen atom or --CH.dbd.CH-- group; Z.sup.0 denotes --COO-- or --CH.sub.2 CH.sub.2 --; Z.sup.1 denotes --CH.sub.2 CH.sub.2 --, --COO-- or a single bond; Q.sup.1 denotes H or F; A.sup.1 denotes trans-1,4-cyclohexylene, 1,4-phenylene or 1,3-dioxane-2,5-diyl; A.sup.2 and A.sup.3 each independently denote trans-1,4-cyclohexylene or 1,4-phenylene; and p, q and m each independently denote 0 or 1.