Patent ID: 8025935

Claim:
A liquid-crystalline medium having negative dielectric anisotropy based on a mixture of polar compounds, which comprises at least one compound of the formula I2 in amounts of 30-60% by weight, based on the medium; and one or more compounds of formulae IIA and/or IIB in which R 2 denotes an alkyl or alkenyl radical having up to 15 C atoms which is unsubstituted, monosubstituted by CN or CF 3 or at least monosubstituted by halogen, where, in addition, one or more CH 2 groups in these radicals are each optionally replaced by —O—, —S—, —C≡C—,—CF 2 O—, —OCF 2 —, —OC—O— or —O—CO— in such a way that O atoms are not linked directly to one another, p denotes 1 or 2, and v denotes 1 to 6.