Polymerisable LC material comprising at least one di- or multireactive mesogenic compound and at least one compound of formula CO-1, wherein R 1 and R 2 denotes H, alkyl, alkoxy or mono- oligo- or polyfluorinated alkyl or alkoxy, L 1 denotes H, alkyl, alkoxy, thioalkyl, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy; halogen, CN, NO 2, OCN, SCN, or mono- oligo- or polyfluorinated alkyl or alkoxy atoms; or -(Sp 31 -A 31), L 2 to L 3 denotes H, alkyl, mono- oligo- or polyfluorinated alkyl, or -(Sp 31 -A 31), Sp 31 denotes a spacer group or a single bond, A 31 denotes an aryl, heteroaryl, (non-aromatic) alicyclic and or heterocyclic group, each optionally having one or more substituents, which are selected from the group comprising silyl, sulfo, sulfonyl, formyl, amine, imine, nitrile, mercapto, nitro, halogen, C 1-12 alkyl, C 6-12 aryl, C 1-12 alkoxy, hydroxyl, or combinations of these groups, n denotes 0 or 1, characterized in that at least one di- or multireactive mesogenic compound is selected of formula DRM P 1 -Sp 1 -MG-Sp 2 -P 2 DRM wherein P 1 and P 2 independently of each other denote a polymerisable group, Sp 1 and Sp 2 independently of each other are a spacer group or a single bond, and MG is a rod-shaped mesogenic group, which is preferably selected of formula MG -(A 1 -Z 1) n -A 2 - MG wherein A 1 and A 2 denote, in case of multiple occurrence independently of one another, an aromatic or alicyclic group, which optionally contains one or more heteroatoms selected from N, O and S, and is optionally mono- or polysubstituted by L 1, L 1 is P-Sp-, F, Cl, Br, I, -CN, -NO 2, -NCO, -NCS, -OCN,-SCN, -C(=O)NR 00 R 000 -C(=O)OR 00, -C(=O)R 00,-NR 00 R 000, -OH, -SF 5, optionally substituted silyl, aryl or heteroaryl with 1 to 12 C atoms, straight chain or branched alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy with 1 to 12, C atoms, wherein one or more H atoms are optionally replaced by F or Cl, R 00 and R 000 independently of each other denote H or alkyl with 1 to 12 C-atoms, Z 1 denotes, in case of multiple occurrence independently of one another, -O-, -S-, -CO-, -COO-, -OCO-, -S-CO-, -CO-S-, -O-COO-, -CO-NR 00 -, -NR 00 -CO-, -NR 00 -CO-NR 000, -NR 00 -CO-O-, -O-CO-NR 00 -, -OCH 2 -, -CH 2 O-, -SCH 2 -, -CH 2 S-, -CF 2 O-, -OCF 2 -, -CF 2 S-, -SCF 2 --CH 2 CH 2 -, -(CH 2) n1, -CF 2 CH 2 -, -CH 2 CF 2 -, -CF 2 CF 2 -, -CH=N-, -N=CH-, -N=N-, -CH=CR 00 -, -CY 1 =CY 2 -, -C≡C-, -CH=CH-COO-, -OCO-CH=CH- or a single bond, Y 1 and Y 2 independently of each other denote H, F, Cl or CN, n is 1, 2, 3 or 4, and n1 is an integer from 1 to 10. R 1 and R 2 denotes H, alkyl, alkoxy or mono- oligo- or polyfluorinated alkyl or alkoxy, L 1 denotes H, alkyl, alkoxy, thioalkyl, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy; halogen, CN, NO 2, OCN, SCN, or mono- oligo- or polyfluorinated alkyl or alkoxy atoms; or -(Sp 31 -A 31), L 2 to L 3 denotes H, alkyl, mono- oligo- or polyfluorinated alkyl, or -(Sp 31 -A 31), Sp 31 denotes a spacer group or a single bond, A 31 denotes an aryl, heteroaryl, (non-aromatic) alicyclic and or heterocyclic group, each optionally having one or more substituents, which are selected from the group comprising silyl, sulfo, sulfonyl, formyl, amine, imine, nitrile, mercapto, nitro, halogen, C 1-12 alkyl, C 6-12 aryl, C 1-12 alkoxy, hydroxyl, or combinations of these groups, n denotes 0 or 1, characterized in that at least one di- or multireactive mesogenic compound is selected of formula DRM P 1 and P 2 independently of each other denote a polymerisable group, Sp 1 and Sp 2 independently of each other are a spacer group or a single bond, and MG is a rod-shaped mesogenic group, which is preferably selected of formula MG -(A 1 -Z 1) n -A 2 - MG A 1 and A 2 denote, in case of multiple occurrence independently of one another, an aromatic or alicyclic group, which optionally contains one or more heteroatoms selected from N, O and S, and is optionally mono- or polysubstituted by L 1, L 1 is P-Sp-, F, Cl, Br, I, -CN, -NO 2, -NCO, -NCS, -OCN,-SCN, -C(=O)NR 00 R 000 -C(=O)OR 00, -C(=O)R 00,-NR 00 R 000, -OH, -SF 5, optionally substituted silyl, aryl or heteroaryl with 1 to 12 C atoms, straight chain or branched alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy with 1 to 12, C atoms, wherein one or more H atoms are optionally replaced by F or Cl, R 00 and R 000 independently of each other denote H or alkyl with 1 to 12 C-atoms, Z 1 denotes, in case of multiple occurrence independently of one another, -O-, -S-, -CO-, -COO-, -OCO-, -S-CO-, -CO-S-, -O-COO-, -CO-NR 00 -, -NR 00 -CO-, -NR 00 -CO-NR 000, -NR 00 -CO-O-, -O-CO-NR 00 -, -OCH 2 -, -CH 2 O-, -SCH 2 -, -CH 2 S-, -CF 2 O-, -OCF 2 -, -CF 2 S-, -SCF 2 --CH 2 CH 2 -, -(CH 2) n1, -CF 2 CH 2 -, -CH 2 CF 2 -, -CF 2 CF 2 -, -CH=N-, -N=CH-, -N=N-, -CH=CR 00 -, -CY 1 =CY 2 -, -C≡C-, -CH=CH-COO-, -OCO-CH=CH- or a single bond, Y 1 and Y 2 independently of each other denote H, F, Cl or CN, n is 1, 2, 3 or 4, and n1 is an integer from 1 to 10.