Patent ID: 7445819
Filing Date: 2008-11-04
Classification: C09K

Abstract:
1. A liquid crystal medium comprising: a first dielectrically positive component, component A, comprising one or more dielectrically positive compounds of formula I wherein R X Z optionally, a second dielectrically positive component, component B, comprising one or more dielectrically positive compounds having a dielectric anisotropy of more than 3, from which compounds of formula I are excluded, selected from compounds of formulae II and III wherein R L X Z l, m, n and o are, independently of each other, 0 or 1; and optionally a dielectrically neutral component, component C, comprising one or more dielectrically neutral compounds of formula IV wherein R independently of each other, and in case is present twice, also these, independently of each other, are in each case Z p is 0, 1 or 2.