A liquid crystal medium comprising - a polymerisable component A) comprising one or more polymerisable compounds, and - a liquid-crystalline component B) comprising one or more mesogenic or liquid-crystalline compounds, which comprises one or more compounds selected from formulae C, P, T and D in which the individual radicals, on each occurrence identically or differently, and each, independently of one another, have the following meaning: e 1 or 2, preferably 1, R 1 and R 2 alkyl having 1 to 12 C atoms, where, in addition, one or two non-adjacent CH 2 groups may be replaced by -O-, -CH=CH-, -CO-, -OCO- or -COO- in such a way that O atoms are not linked directly to one another, R 5 and R 6 alkyl having 1 to 12 C atoms, where, in addition, one or two non-adjacent CH 2 groups may be replaced by -O-, -CH=CH-, -CO-, -OCO- or -COO- in such a way that O atoms are not linked directly to one another, Z x and Z y -CH 2 CH 2 -, -CH=CH-, -CF 2 O-, -OCF 2 -, -CH 2 O-, -OCH 2 -, -CO-O-, -O-CO-, -C 2 F 4 -, -CF=CF-, -CH=CH-CH 2 O- or a single bond, L 1-4 F or Cl, L T1 -L T6 H, F or Cl, with at least one of L T1 to L T6 being F or Cl, characterized in that the following conditions are fulfilled: component B) comprises ≥60% of compounds selected from formulae C, P, T and D, component B) comprises ≥50% of compounds selected from formula C, P and T, component B) comprises ≥40% of compounds selected from formulae C and P wherein R 2 is an alkoxy group having 1 to 12 C atoms, component B) comprises 1-20% of compounds of formula D wherein e is 1. - a polymerisable component A) comprising one or more polymerisable compounds, and - a liquid-crystalline component B) comprising one or more mesogenic or liquid-crystalline compounds, which comprises one or more compounds selected from formulae C, P, T and D in which the individual radicals, on each occurrence identically or differently, and each, independently of one another, have the following meaning: e 1 or 2, preferably 1, R 1 and R 2 alkyl having 1 to 12 C atoms, where, in addition, one or two non-adjacent CH 2 groups may be replaced by -O-, -CH=CH-, -CO-, -OCO- or -COO- in such a way that O atoms are not linked directly to one another, R 5 and R 6 alkyl having 1 to 12 C atoms, where, in addition, one or two non-adjacent CH 2 groups may be replaced by -O-, -CH=CH-, -CO-, -OCO- or -COO- in such a way that O atoms are not linked directly to one another, Z x and Z y -CH 2 CH 2 -, -CH=CH-, -CF 2 O-, -OCF 2 -, -CH 2 O-, -OCH 2 -, -CO-O-, -O-CO-, -C 2 F 4 -, -CF=CF-, -CH=CH-CH 2 O- or a single bond, L 1-4 F or Cl, L T1 -L T6 H, F or Cl, with at least one of L T1 to L T6 being F or Cl, characterized in that the following conditions are fulfilled: component B) comprises ≥60% of compounds selected from formulae C, P, T and D, component B) comprises ≥50% of compounds selected from formula C, P and T, component B) comprises ≥40% of compounds selected from formulae C and P wherein R 2 is an alkoxy group having 1 to 12 C atoms, component B) comprises 1-20% of compounds of formula D wherein e is 1. e 1 or 2, preferably 1, R 1 and R 2 alkyl having 1 to 12 C atoms, where, in addition, one or two non-adjacent CH 2 groups may be replaced by -O-, -CH=CH-, -CO-, -OCO- or -COO- in such a way that O atoms are not linked directly to one another, R 5 and R 6 alkyl having 1 to 12 C atoms, where, in addition, one or two non-adjacent CH 2 groups may be replaced by -O-, -CH=CH-, -CO-, -OCO- or -COO- in such a way that O atoms are not linked directly to one another, Z x and Z y -CH 2 CH 2 -, -CH=CH-, -CF 2 O-, -OCF 2 -, -CH 2 O-, -OCH 2 -, -CO-O-, -O-CO-, -C 2 F 4 -, -CF=CF-, -CH=CH-CH 2 O- or a single bond, L 1-4 F or Cl, L T1 -L T6 H, F or Cl, with at least one of L T1 to L T6 being F or Cl, component B) comprises ≥60% of compounds selected from formulae C, P, T and D, component B) comprises ≥50% of compounds selected from formula C, P and T, component B) comprises ≥40% of compounds selected from formulae C and P wherein R 2 is an alkoxy group having 1 to 12 C atoms, component B) comprises 1-20% of compounds of formula D wherein e is 1.