Patent ID: 7691455
Filing Date: 2010-04-06
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  are independently of each other X a second dielectrically positive component, component B, comprising one or more dielectrically positive compounds, selected from compounds of formulae II and III wherein R  are, independently of each other, L X Z l, m, n and o are, independently of each other, 0 or 1, and from which compounds of formula I are excluded; 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 Z p is 0, 1 or 2.