Chiral reactive mesogen mixture

A mixture comprising at least one chiral compound and at least one polymerizable compound of formula I

• wherein the individual radicals, independently of each other and on each occurrence identically or differently, have the following meanings
• P denotes a polymerizable group,
• Sp denotes a spacer group or a single bond,
• A, B, D, E denote benzene-1,4-diyl, naphthalene-1,4-diyl, naphthalene 2,6-diyl or anthracene-9,10-diyl, each of which is optionally substituted by one or more groups L or P—Sp-,
• C denotes benzene-1,4-diyl, naphthalene-1,4-diyl, naphthalene 2,6-diyl, anthracene-9,10-diyl, phenanthrene-2,7-diyl or fluorene-2,7-diyl, each of which is optionally substituted by one or more groups L or P—Sp-,
• and one of C and D optionally denotes a single bond,
• R11 denotes F, Cl, CN, alkoxy or thioalkyl with 1 or 2 C atoms which is optionally fluorinated, or P—Sp-,
• Z11, Z12 denote —O—, —S—, —CO—, —COO—, —OCO—, —S—CO—, —CO—S—, —O—COO—, —CO—NR0—, —NR0—CO—, —NR0—CO—NR00, —NR0—CO—O—, —O—CO—NR0—, —OCH2—, —CH2O—, —SCH2—, —CH2S—, —CF2O—, —OCF2—, —CF2S—, —SCF2—, —CH2CH2—, —(CH2)n1, —CF2CH2—, —CH2CF2—, —CF2CF2—, —CH═N—, —N═CH—, —N═N—, —CH═CR0—, —CY1═CY2—, —C≡C—, —CH═CH—COO—, —OCO—CH═CH— or a single bond,
• Y1, Y2 denote H, F, Cl or CN,
• L denotes F, Cl, —CN, P—Sp-, or straight chain, branched or cyclic alkyl having 1 to 25 or 3 to 25 C atoms, wherein one or more non-adjacent CH2-groups are optionally replaced by —O—, —S—, —CO—, —CO—O—, —O—CO—, —O—CO—O—, CR0═CR00—, —C≡C—,
• in such a manner that O- and/or S-atoms are not directly connected with each other, and wherein one or more H atoms are each optionally replaced by P—Sp-, F or Cl, or two substituents L that are connected to directly adjacent C atoms optionally form a cycloalkyl or cycloalkenyl group with 5, 6, 7 or 8 C atoms,
• R0, R00 denote H or an alkyl having 1 to 12 C atoms,
• n1 denotes 1, 2, 3 or 4,
• n denotes 0, 1, 2, 3 or 4,
• m denotes 0, 1, 2, 3 or 4,
• r denotes 0, 1, 2, 3 or 4,
• s denotes 0, 1, 2 or 3, and
• t denotes 0, 1 or 2.