Patent ID: 7001646
Filing Date: 2006-02-21
Classification: C09K

Abstract:
1. A liquid-crystalline medium containing a mixture of polar compounds having positive dielectric anisotropy, said medium comprising one or more alkenyl compounds of formula I and one or more compounds of formula IA wherein: R is a halogenated or unsubstituted alkyl or alkoxy radical having 1 to 15 carbon atoms, where one or more CH R R Q is CF Y is F or Cl, X is F, Cl, CN, or a halogenated alkyl radical, a halogenated alkenyl radical, a halogenated alkoxy radical or a halogenated alkenyloxy radical, in each case having up to 6 carbon atoms, Z are each, independantly of one another, y is 0, 1 or 2, z is 0 or 1, and L