Patent ID: 8021571

Claim:
A mixture comprising the following components A) from 30 to 80% of component A consisting of one or more compounds of formula I wherein P is a polymerizable group, Sp is a spacer group or a single bond, A 1,2 independently of each other denote 1,4-phenylene or naphthalene-2,6-diyl, wherein one or more CH groups are optionally replaced by N, and which are unsubstituted or substituted by one or more groups L, Z 1,2 are, in case of multiple occurrence each independently of one another, —COO—, —OCO—, —O—COO—, —C≡C— or a single bond, R 1 denotes P-Sp-, F, Cl, —CN, —NO 2 , —NCO, —NCS, —OCN, —SCN, —SF 5 , or straight chain or branched alkyl with 1 to 12 C atoms, wherein one or more CH 2 groups are optionally replaced by —O—, —S—, —CO—, —CS— or NR 0 in such a manner that O and/or S atoms are not directly linked with each other, and wherein one or more H atoms are optionally replaced by F or Cl, L are, in case of multiple occurrence each independently of one another, P-Sp-, F, Cl, Br, I, —CN, —NO 2 , —NCO, —NCS, —OCN, —SCN, —C(═O)NR 0 R 00 , —C(═O)X, —C(═O)OR 0 , —C(═O)R 0 , —NR 0 R 00 , —OH, —SF 5 , optionally substituted silyl, aryl or heteroaryl with 1 to 12 C atoms, and 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, X is halogen, R 0 and R 00 are independently of each other H or alkyl with 1 to 12 C atoms, r are each independently of one another 0, 1, 2, 3 or 4, preferably 0 or 1, m1 and m2 are independently of each other 0 or 1, and B) from 5 to 50% of component B consisting of one or more reactive mesogens having two or more polymerizable groups, and C) from 0.2 to 10% of component C consisting of one or more compounds of formula II wherein R 0 * is H or P 0 , P 0 is a polymerizable group, A 0 and B 0 are, in case of multiple occurrence independently of one another, 1,4-phenylene that is unsubstituted or substituted with 1, 2, 3 or 4 groups L, wherein L is as defined above, or trans-1,4-cyclohexylene, X 1 and X 2 are independently of each other —O—, —COO—, —OCO—, —O—CO—O— or a single bond, Z 0 are, in case of multiple occurrence independently of one another, —COO—, —OCO—, —O—CO—O—, —OCH 2 —, —CH 2 O—, —CF 2 O—, —OCF 2 —, —CH 2 CH 2 —, —(CH 2 ) 4 —, —CF 2 CH 2 —, —CH 2 CF 2 —, —CF 2 CF 2 —, —C≡C—, —CH═CH—, —CH═CH—COO—, —OCO—CH═CH— or a single bond, t are, independently of each other, 0, 1, 2 or 3, u is 0, 1 or 2, x is 0 or an integer from 1 to 12, z is 0 or 1, and wherein the naphthalene rings can additionally be substituted with one or more identical or different groups L, wherein L is as defined above, and D) from 0.1 to 8% of component D consisting of one or more polymerization initiators; and which mixture has a reflection peak in the visible wavelength range.