Patent ID: 7198828
Filing Date: 2007-04-03
Classification: C09K

Abstract:
1. A liquid-crystalline medium comprising one or more compounds of formula A and at least one compound of formula B in which R  —CH═CH—, —C≡C—, —CO—, —CO—O—, —O—CO— or —O—CO—O— in such a way that O atoms are not linked directly to one another, R  —C≡C—, —CO—, —CO—O—, —O—CO— or —O—CO—O— in such a way that O atoms are not linked directly to one another, Z L Y is F, Cl, SF provided that the medium comprises: at least one compound of formula IV in which m is 1, R R L L or that at least one compound of formula B is of the following formula B-2; in which R b is a C 2-12 alkenyl radical.