Patent ID: 6080452
Filing Date: 2000-06-27
Classification: C07C,C09K

Abstract:
An electro-optical liquid-crystal displayhaving a realignment layer for realigning the liquid crystals whose field has a significant component parallel to the liquid-crystal layerand containing a liquid-crystalline medium of positive dielectric anisotropy which comprises at least one mesogenic compound of the formula II: ##STR20## in which R' is an alkyl or alkenyl radical having 1 to 15 carbon atoms which is unsubstituted or monosubstituted to perhalo-substituted by halogen and in which one or more CH.sub.2 groups are each, independently of one another, optionally replaced by --O--, --S--, --CO--, --COO--, --OCO-- or --OCO--O-- in such a way that O atoms are not linked directly to one another; andat least one compound selected from the formulae Ia, lb and Ic: ##STR21## in which ##STR22## Z.sup.2 is --COO--, --CH.sub.2 CH.sub.2 -- or a single bond, and R.sup.2 is H, an alkyl or alkenyl radical having 1 to 15 carbon atoms which is unsubstituted, monosubstituted by CN or CF.sub.3 or monosubstituted to perhalo-substituted by halogen, where one or more CH.sub.2 groups in these radicals are optionally, in each case independently of one another, replaced by --O--, --S--, ##STR23## --CO--, --CO--O--, --O--CO-- or --O--CO--O-- in such a way that O atoms are not linked directly to one another.