Liquid-crystal medium

A LC display, which is a PS-VA, PS-IPS or PS-UB-FFS display, which comprises

• a first substrate and second substrate, at least one which is transparent to light,
• an electrode provided on each of the first and second substrates or two electrodes provided on only one of the first and second substrates,
• a first and/or second alignment layer of polyimide, the first alignment layer positioned on the first substrate and the second alignment layer positioned on the second substrate and
• a layer of a liquid crystal (LC) medium located between the first and second substrates adjacent the first and/or second alignment layer
• the liquid crystal (LC) medium comprising
• one or more polymerizable compounds which are polymerized,
• one or more compounds of formula B in a proportion of from 3 to 20%, and
• one or more compounds of formula Q in an amount sufficient to reduce the VHR drop following polymerization of the polymerizable compounds by at least 35%, in a proportion from 0.1 to 1.0%,
• in which the individual radicals, on each occurrence identically or differently, and each, independently of one another, have the following meaning:
• R1, R2, RQ are alkyl, alkoxy, oxaalkyl or alkoxyalkyl having 1 to 9 C atoms or alkenyl or alkenyloxy having 2 to 9 C atoms, all of which are optionally fluorinated,
• XQ is F, Cl, halogenated alkyl or alkoxy having 1 to 6 C atoms or halogenated alkenyl or alkenyloxy having 2 to 6 C atoms,
• L1, L2 are F or Cl,
• LQ1-LQ6 are H, F or Cl, with at least one of LQ1 to LQ6 being F or Cl.