Patent ID: 8574456

Claim:
A liquid-crystalline medium comprising one or more compounds of formula I: in which R 0 denotes an alkyl or alkoxy radical having 1 to 15 C atoms, where, in addition, one or more CH 2 groups in these radicals may each be replaced, independently of one another, by —C≡C—, —CF 2 O—, —CH═CH—, —O—, —CO—O— or —O—CO— in such a way that O atoms are not linked directly to one another, and where, in addition, one or more H atoms are each optionally replaced by a halogen atom, X 0 denotes F, Cl, CN, SF 5 , SCN, NCS, a halogenated alkyl radical having up to 6 C atoms, a halogenated alkenyl radical having up to 6 C atoms, a halogenated alkoxy radical having up to 6 C atoms, or a halogenated alkenyloxy radical having up to 6 C atoms, and L 1-6 each, independently of one another, denote H or F.