Liquid crystal medium

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

• in which
• RL denotes H, a straight chain or branched 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—, —O—, —CO—O— or —O—CO— in such a way that O atoms are not linked directly to one another, and in which, in addition, one or more H atoms may each be replaced by halogen,
• XL denotes F, Cl, CN, CHF2, CF3, OCF3, or, identically or differently, has one of the meanings of RL,
• YL denotes H, F, Cl or CH3,
• and
• one or more compounds selected from the group of compounds of the formulae IIA, IIB, IIC and IID,
• in which
• R2A, R2B, R2C
• and R2D each, independently of one another, denote H, an alkyl or alkenyl radical having up to 15 C atoms which is unsubstituted, monosubstituted by CN or CF3 or at least monosubstituted by halogen, where, in addition, one or more CH2 groups in these radicals may each be replaced by —O—, —S—,
• —C≡C—, —CF2O—, —OCF2—, —OC—O— or —O—CO— in such a way that O atoms are not linked directly to one another,
• L1 to L4 each, independently of one another, denote F, Cl, CF3 or CHF2,
• Y denotes H, F, Cl, CF3, CHF2 or CH3,
• Z2, Z2B and Z2D each, independently of one another, denote a single bond, —CH2CH2—, —CH═CH—, —CF2O—, —OCF2—, —CH2O—, —OCH2—, —COO—, —OCO—, —C2F4—, —CF═CF— or —CH═CHCH2O—,
• p denotes 0, 1 or 2,
• q denotes 0 or 1, and
• v denotes 1, 2, 3, 4, 5, or 6,
• wherein the mixtures X-1 and X-2 having the following compositions
• Mixture X-1:
• CC-3-V1
• 8.0%
• CC-4-V1
• 20.0%
• CCH-301
• 10.5%
• CCH-303
• 2.0%
• CC-3-4
• 0.5%
• CCY-3-O2
• 11.0%
• COB(S)-2-O4
• 7.5%
• CLP-3-T
• 1.0%
• CPY-3-O2
• 10.5%
• CY-3-O2
• 15.5%
• CY-3-O4
• 3.5%
• PP-1-2V1
• 10.0%
• □
• 100.0%
• Mixture X-2
• B(S)-2O-O4
• 2.0%
• B(S)-2O-O5
• 4.0%
• CC-3-V
• 37.0%
• CC-3-V1
• 3.0%
• CCP-V-1
• 14.5%
• CCY-3-O2
• 11.5%
• CCY-5-O2
• 3.0%
• COB(S)-2-O4
• 10.0%
• CY-3-O2
• 14.0%
• CLP-3-T
• 1.0%
• □
• 100.0%
• are excluded.