Patent ID: 7838090

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 IA, one or more dielectrically positive compounds of formula IB and one or more dielectrically positive compounds of formula IC in which R 1 denotes alkyl, alkoxy, fluorinated alkyl or fluorinated alkoxy having 1 to 7 C atoms, alkenyl, alkenyloxy, alkoxy-alkyl or fluorinated alkenyl having 2 to 7 C atoms, independently of one another, denote independently of one another, independently of one another, denote Z 11 to Z 13 independently of one another, denote —CH 2 CH 2 —, —CF 2 CF 2 —, —COO—, trans-CH═CH—, trans-CF═CF—, —CH 2 O—, —CF 2 O— or a single bond, Z 14 and Z 15 are —CF 2 O—, L 11 and L 12 , independently of one another, denote H, F or Cl, and optionally a second dielectrically positive component, component B, comprising one or more dielectrically positive compounds, 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, independently of one another and, in the case where occurs twice, also these independently of one another, denote Z 41 and Z 42 , independently of one another and, in the case where Z 41 occurs twice, also these 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.