| abstract |
The invention relates to compounds of the formula I, a liquid-crystalline medium which comprises at least one compound of the formula I, wherein R 1 , R 1 * , L 1 , L 2 , L 3 and L 4 have the meanings given in claim 1, contains and its use for an active matrix display, in particular based on the VA, PSA, PS-VA, SA-VA, SS-VA, PM-VA, PALC, IPS, PS-IPS, FFS or PS-FFS effect. |