| 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 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. |