abstract |
The present invention relates to a liquid-crystalline medium comprising 1,2-difluoroethene compounds of the general formula I, in which R 1 , ring A, Z 1 , Z 2 , m, X and L 1-6 are as defined in Claim 1 . The invention also relates to the use of the medium for electro-optical purposes and to displays containing this medium. Novel 1,2-difluoroethene compounds having 3 or more rings are disclosed. |