Patent ID: 7964253

Claim:
A liquid-crystal medium, comprising the following components: a first dielectrically positive component, component A, comprising one or more dielectrically positive compounds of formula I in which R 1 denotes alkyl, alkoxy, fluorinated alkyl or fluorinated alkoxy having 1 to 7 C atoms, alkenyl, alkenyloxy, alkoxyalkyl or fluorinated alkenyl having 2 to 7 C atoms, X 1 denotes F, Cl, fluorinated alkyl or fluorinated alkoxy, each having 1 to 3 C atoms, or fluorinated alkenyl or fluorinated alkenyloxy having 2 to 3 C atoms, L 11 to L 18 , independently of one another, denote H, F or Cl, and a second dielectrically positive component, component B, comprising one or more dielectrically positive compounds, one of which is a compound of formula II in which R 2 denotes alkyl, alkoxy, fluorinated alkyl or fluorinated alkoxy having 1 to 7 C atoms, alkenyl, alkenyloxy, alkoxyalkyl or fluorinated alkenyl having 2 to 7 C atoms, on each appearance, independently of one another, denote wherein at least one of L 21 and L 22 independently of one another, denote H or F, X 2 denotes halogen, halogenated alkyl or alkoxy having 1 to 3 C atoms or halogenated alkenyl or alkenyloxy having 2 or 3 C atoms, m denotes 0, 1, 2 or 3, and optionally a dielectrically neutral component, component C, comprising one or more dielectrically neutral compounds of formula IV in which R 41 and R 42 , independently of one another, denote alkyl, alkoxy, fluorinated alkyl or fluorinated alkoxy having 1 to 7 C atoms, alkenyl, alkenyloxy, alkoxyalkyl or fluorinated alkenyl having 2 to 7 C atoms, on each occurrence, independently of one another, denote Z 41 and Z 42 on each occurrence, independently of one another, denote —CH 2 CH 2 —, —COO—, trans-CH═CH—, trans-CF═CF—, —CH 2 O—, —CF 2 O—, —C≡C— or a single bond, and p denotes 0, 1 or 2.