Patent ID: 6905741

Claim:
Liquid-crystalline medium comprising a) from 7 to 25% by weight of one or more compounds of the formula (I) CF 3 O -a-b-c-F (I) in which a, b, c are each, independently of one another, selected from c is additionally selected from b) from 40 to 85% by weight of one or more compounds selected from those of the formulae (IIa) to (IIg) and (III) to (V) R-P-G-U-X (IIa) R-P-G-G-X (IIb) R-G-G-G-X (IIc) R-G-G-U-X (IId) R-G-G-P-X (IIe) R-G-P-G-X (IIf) R-G-P-E-P-X (IIg) in which R is an alkyl, alkoxy or alkenyl radical having 1 to 15 carbon atoms or 2 to 15 carbon atoms, respectively, where one or more —CH 2 — groups are optionally replaced by —O— in such a way that oxygen atoms are not adjacent, and X is —F, —OCF 3 , —OCF 2 H, —Cl and —CF 3 , R-g-h-i-X (III) in which g is h is selected from i is selected from and X and R are as defined above, R-h-i-X (IV) in which h, i, R and X are as defined above, R-k-I-m-n-X (V) in which k is l is selected from m, n are selected from and R and X are as defined above, c) from 3 to 15% by weight of one or more compounds of the formula (VIa) to VIc) R-P-GI-GI-F (VIa) R-P-GI-GI-Cl (VIb) R-P-G-P-R (VIc) in which and, R is as defined above, d) from 5 to 20% by weight of one or more compounds of the formula (VIIa) to (VIIf) R-C-P-P-C-R (VIIa) R-C-G-P-C-R (VIIb) R-C-P-G-P-R (VIIec) R-C-P-GI-P-R (VIId) R-C-G-P-P-R (VIIe) R-C-GI-P-P-R (VIIf) in which and R, P, G and GI are independent of one another and are as defined above, e) from 0 to 10% by weight of one or more compounds of the formulae (VIII) and/or (IX) in which R are independent of one another and are as defined above, R-w-x-y-R 2 (IX) in which w, x is y is selected from R is as defined above, and R 2 is, in addition to the meanings of R, —F, the sum of the components a) to e) being 100% by weight.