| abstract |
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of the formula I n n n n n n n n n n and at least one compound of the formula II n n n n n n n n n n in whichn nR 1 , R 2 , R 3 , R 4 , ring A, Z 1 , Z 2 and m are as defined in Claim 1, n nand to the use thereof for an active-matrix display based on the ECB, VA, PS-VA, FFS, PALO or IPS effect. |