Patent ID: 7622165

Claim:
A liquid-crystalline medium, comprising A) 2-40% by weight one or more compounds of formula I, in which R 0 denotes a halogenated or unsubstituted alkyl or alkoxy radical having 1 to 15 C atoms, in which one or more CH 2 groups are optionally each, independently of one another, replaced by —C≡C—, in such a way that O atoms are not linked directly to one another, X 0 denotes F, Cl, ON, SF 5 , SCN, NCS, a halogenated alkyl radical, a halogenated alkenyl radical, a halogenated alkoxy radical or a halogenated alkenyloxy radical having up to 6 C atoms, and Y 1 and Y 2 each, independently of one another, denote H or F, and each, independently of one another, denote where at least one of denotes B) 20-90% by weight one or more compounds of formula II, in which A, R 0 , X 0 , Y 1 and Y 2 have the meanings indicated for formula I: C) 2-30% by weight one or more compounds of formula III, in which R 0 , X 0 , Y 1 and Y 2 have the meanings indicated for formula I, and Y 3 and Y 4 each, independently of one another, denote H or F; D) optionally 2-30% by weight one or more compounds of formula IV, in which R 0 , X 0 , Y 1 and Y 2 have the meanings indicated for formula I, E) optionally 2-30% by weight one or more compounds of formulae IX-XII, in which X 0 has the meaning indicated for formula I, L denotes H or F, “alkyl” denotes C 1-7 -alkyl, R′ denotes C 1-7 -alkyl, C 1-6 -alkoxy or C 2-7 -alkenyl, and “alkenyl” and each, independently of one another, denote “alkenyl*” C 2-7 -alkenyl and F) optionally 4-30% by weight one or more compounds of formula XIV in which R 1 and R 2 each, independently of one another, denote n-alkyl, alkoxy, oxaalkyl, fluoroalkyl or alkenyl, each having up to 9 C atoms.