Patent ID: 7090899

Claim:
A liquid-crystalline medium having a dielectric anisotropy Δε of > 3, comprising: one or more compounds of formula (i) in which R in each case, independently of one another, is an alkyl, alkoxy alkenyl radical having 1–15 or 2–15 carbon atoms respectively, in which one or more CH 2 groups may be replaced by —O— in such a way that oxygen atoms are not adjacent, and one or more compounds selected from formula (II) and formula (VIII) R-a-b-Z-c-X (II) in which R is an alkyl having from 1 to 15 or 2 to 15 carbon atoms, alkoxy having from 1 to 15 or 2 to 15 carbon atoms or alkenyl having from 2 to 15 carbon atoms, in which in each case one or more CH 2 groups may be replaced by —O— in such a way that oxygen atoms are not adjacent, X is —F, —OCF 3 , —OCF 2 H, —Cl or —CF 3 , Z is a single bond or —CH 2 —CH 2 .