| abstract |
The present invention relates to liquid-crystalline media comprising at least one compound of the formula I, wherein R 1 and R 1* each independently of one another represent an alkyl or alkoxy group having 1-15 C atoms, wherein one or more CH 2 groups in these groups can also each independently of one another be - C≡C-, -CF 2 O-, -OCF 2 -, -CH=CH-, formula (II), formula (III), -O-, -CO-O-, -O-CO- with O atom Instead of being directly connected to each other, and in which one or more H atoms can also be replaced by halogen, L 1 and L 2 each independently of one another represent F, Cl, CF 3 or CHF 2 , and are related to their use in active Use of matrix displays, in particular active matrix displays based on the VA-, PSA-, PA-VA-, PS-VA-, PALC-, IPS-, PS-IPS-, FFS- or PS-FFS effect. |