abstract |
The present invention is directed to liquid crystal media comprising at least one compound of the formula (I) and to applications for active-matrix displays based on their VA, PSA, PS-VA, PALC, FFS, PS-FFS, IPS or PS-IPS effects It is about: (I) Wherein R 1 , R 1 * , rings A and B, L 1 , L 2 , a and b have the meanings as defined in claim 1. |