LC mixtures with negative delta epsilon containing CC-4-V1 and COB(S)-N-OM

A liquid crystal medium comprising

• one or more chiral compounds,
• one or more compounds of formula I
• and
• one or more compounds of formula III-3
• in which
• R11 and R12 identically or differently, denote H, an alkyl or alkoxy radical having 1 to 15 C atoms, in which one or more CH2 groups in these radicals are optionally replaced, independently of one another, by —C═C—, —CF2O—, —OCF2—, —CH═CH—,
• —O—, —CO—O— or —O—CO— in such a way that O atoms are not linked directly to one another, and in which one or more H atoms may be replaced by halogen,
• with the proviso that at least one of R11 or R12 is an alkyl or alkoxy radical having 1 to 15 C atoms wherein at least one CH2 group is independently replaced by
• —C≡C—, —CF2O—, —OCF2—, —CH═CH—, —O—, —CO—O— or —O—CO— in such a way that O atoms are not linked directly to one another, and in which one or more H atoms may be replaced by halogen,
• and wherein said liquid crystal medium has a negative dielectric anisotropy.

A liquid crystal medium comprising one or more compounds of formula I

• and
• one or more compounds of formula III
• in which
• R11 and R12 each, independently of one another, denote H, an alkyl or alkoxy radical having 1 to 15 C atoms, where one or more CH2 groups in these radicals may each be replaced, independently of one another, by
• —C═C—, —CF2O—, —OCF2—, —CH═CH—, by —O—, —CO—O— or —O—CO— in such a way that O atoms are not linked directly to one another, and in which one or more H atoms may be replaced by halogen,
• with the proviso that at least one of R11 or R12 is an alkyl or alkoxy radical having 1 to 15 C atoms wherein at least one CH2 group is independently replaced by
• —C≡C—, —CF2O—, —OCF2—, —CH═CH—, —O—, —CO—O— or —O—CO— in such a way that O atoms are not linked directly to one another, and in which one or more H atoms may be replaced by halogen,
• A1 on each occurrence, independently of one another, denotes a 1,4-phenylene radical, in which one or two CH groups may be replaced by N, or a 1,4-cyclohexylene or 1,4-cyclohexenylene radical, in which one or two non-adjacent CH2 groups may be replaced by —O— or —S—,
• where the radicals may be mono- or polysubstituted by halogen atoms,
• n denotes 1 or 2,
• Z1 on each occurrence independently of one another denotes —CF2O—, —OCF2—, —CH2O—, —OCH2—, —CH2—, —CH2CH2—, —CH═CH—, or —C≡C—,
• L11 and L12 each, independently of one another, denote F, Cl, CF3 or CHF2,
• and
• W denotes O or S,
• and
• at least one compound selected from CLOY-n-Om, CCG-V-F and CCC-3-V
• wherein n and m are each independently 1 to 9,
• and wherein said liquid crystal medium has a negative dielectric anisotropy.