Liquid crystal display

Liquid-crystal (LC) display of the PS (polymer stabilised) or PSA (polymer sustained alignment) type, containing an LC cell consisting of two substrates, where at least one substrate is transparent to light and at least one substrate has an electrode layer, and a layer of an LC medium comprising a polymerised component and a low-molecular-weight component located between the substrates, where the polymerised component is obtainable by polymerisation of one or more polymerisable compounds between the substrates of the LC cell in the LC medium with application of an electrical voltage, characterised in that the low-molecular-weight component comprises one or more compounds of the formula A

• in which the individual radicals have the following meanings:
• a1 denotes 0 or 1,
• L1 and L2 each, independently of one another, denote H, F or Cl,
• R1 on each occurrence, identically or differently, denotes —(CH2)m—CH═CH—CnH2n+1,
• R2 denotes alkyl having 1 to 12 C atoms, in which, in addition, one or two non-adjacent CH2 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, or, if a1=0 and the ring A1 denotes cyclohexylene, R2 also denotes R1,
• m on each occurrence, identically or differently, denotes 0, 1, 2, 3, 4 or 5,
• n on each occurrence, identically or differently, denotes 1, 2, 3, 4, 5 or 6, where n+m≦6.