A liquid-crystal medium comprising a low-molecular-weight, non-polymerizable liquid-crystalline component and a combination of self-alignment additives for vertical alignment selected from formulae IG and IL combined with one or more compounds selected from the formulae IE, IF, IJ and IK: R 1 -[A 6 -Z 3] m -[A 5 -Z 2] n -A 4 -Sp a -X 1 R 1 -[A 9 -Z 3] m -[A 8 -Z 2] n -A 7 -Sp a -X 1 in which A 4, A 5, A 6 each, independently of one another, denote an aromatic, heteroaromatic, alicyclic or heterocyclic group, which may also contain fused rings, and which may also be mono- or polysubstituted by a group L or -Sp-P, A 7, A 8, A 9 each, independently of one another, denote an aromatic, heteroaromatic, alicyclic or heterocyclic group, which may also contain fused rings, and which may also be mono- or polysubstituted by a group L or -Sp-P, P denotes a polymerizable group, Sp denotes a spacer group or a single bond, wherein formulae IE, IF and IG independently comprise one polymerizable group P each, and wherein formulae IJ, IK and IL independently comprise two or more polymerizable groups P each L in each case, independently of one another, denotes H, F, Cl, Br, I, -CN, -NO 2, -NCO, -NCS, -OCN, -SCN, -C(=O)N(R 0) 2, -C(=O)R 0, optionally substituted silyl, optionally substituted aryl or cycloalkyl having 3 to 20 C atoms, or straight-chain or branched alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy having 1 to 25 C atoms, in which, in addition, one or more H atoms may each be replaced by F or Cl, Z 2, Z 3 in each case, independently of one another, denotes a single bond, -O-, -S-, -CO-, -CO-O-, -OCO-, -O-CO-O-, -OCH 2 -, -CH 2 O-, -SCH 2 -, -CH 2 S-, -CF 2 O-, -OCF 2 -, -CF 2 S-, -SCF 2 -, -(CH 2) n1 -, -CF 2 CH 2 -, -CH 2 CF 2 -, -(CF 2) n1 -, -CH=CH-, -CF=CF-, -C≡C-, -CH=CH-COO-, -OCO-CH=CH-, -(CR 0 R 00) n1 -, -CH(-Sp-P)-, -CH 2 CH(-Sp-P)-, or -CH(-Sp-P)CH(-Sp-P)-, n1 denotes 1, 2, 3 or 4, m denotes 0, 1, 2, 3, 4, 5 or 6, n denotes 0 or 1, R 0 in each case, independently of one another, denotes alkyl having 1 to 12 C atoms, R 00 in each case, independently of one another, denotes H or alkyl having 1 to 12 C atoms, R 1 denotes H, halogen, straight-chain, branched or cyclic alkyl having 1 to 25 C atoms, in which, in addition, one or more non-adjacent CH 2 groups may each be replaced by -O-, -S-, -CO-, -CH=CH-, -C=C-, -CO-O-, -O-CO-, or -O-CO-O-in such a way that O and/or S atoms are not linked directly to one another and in which, in addition, one or more H atoms may each be replaced by F or Cl, or a group -Sp-P, X 1, independently of one another, denotes -OH, -SH, -NH 2, R 22 denotes alkyl having 1 to 12 C atoms, and Sp a, Sp c each, independently of one another, denote a spacer group or a single bond. A 4, A 5, A 6 each, independently of one another, denote an aromatic, heteroaromatic, alicyclic or heterocyclic group, which may also contain fused rings, and which may also be mono- or polysubstituted by a group L or -Sp-P, A 7, A 8, A 9 each, independently of one another, denote an aromatic, heteroaromatic, alicyclic or heterocyclic group, which may also contain fused rings, and which may also be mono- or polysubstituted by a group L or -Sp-P, P denotes a polymerizable group, Sp denotes a spacer group or a single bond, L in each case, independently of one another, denotes H, F, Cl, Br, I, -CN, -NO 2, -NCO, -NCS, -OCN, -SCN, -C(=O)N(R 0) 2, -C(=O)R 0, optionally substituted silyl, optionally substituted aryl or cycloalkyl having 3 to 20 C atoms, or straight-chain or branched alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy having 1 to 25 C atoms, in which, in addition, one or more H atoms may each be replaced by F or Cl, Z 2, Z 3 in each case, independently of one another, denotes a single bond, -O-, -S-, -CO-, -CO-O-, -OCO-, -O-CO-O-, -OCH 2 -, -CH 2 O-, -SCH 2 -, -CH 2 S-, -CF 2 O-, -OCF 2 -, -CF 2 S-, -SCF 2 -, -(CH 2) n1 -, -CF 2 CH 2 -, -CH 2 CF 2 -, -(CF 2) n1 -, -CH=CH-, -CF=CF-, -C≡C-, -CH=CH-COO-, -OCO-CH=CH-, -(CR 0 R 00) n1 -, -CH(-Sp-P)-, -CH 2 CH(-Sp-P)-, or -CH(-Sp-P)CH(-Sp-P)-, n1 denotes 1, 2, 3 or 4, m denotes 0, 1, 2, 3, 4, 5 or 6, n denotes 0 or 1, R 0 in each case, independently of one another, denotes alkyl having 1 to 12 C atoms, R 00 in each case, independently of one another, denotes H or alkyl having 1 to 12 C atoms, R 1 denotes H, halogen, straight-chain, branched or cyclic alkyl having 1 to 25 C atoms, in which, in addition, one or more non-adjacent CH 2 groups may each be replaced by -O-, -S-, -CO-, -CH=CH-, -C=C-, -CO-O-, -O-CO-, or -O-CO-O-in such a way that O and/or S atoms are not linked directly to one another and in which, in addition, one or more H atoms may each be replaced by F or Cl, or a group -Sp-P, X 1, independently of one another, denotes -OH, -SH, -NH 2, R 22 denotes alkyl having 1 to 12 C atoms, and Sp a, Sp c each, independently of one another, denote a spacer group or a single bond.