Liquid crystalline medium

A liquid crystal medium, comprising

• one or more compounds of formula I
• wherein
• R1 denotes alkyl, alkoxy, fluorinated alkyl or fluorinated alkoxy with 1 to 7 C-atoms, or alkenyl, alkenyloxy, alkoxyalkyl or fluorinated alkenyl with 2 to 7 C-atoms, and
• L1 denotes H or F;
• and
• one or more compounds of formula II-1a;
• and
• one or more compounds of formula II-1g;
• and
• optionally one or more compounds of formula III;
• wherein
• R2 and R3 are, independently of each other, alkyl, alkoxy, fluorinated alkyl or fluorinated alkoxy with 1 to 7 C-atoms, or alkenyl, alkenyloxy, alkoxyalkyl or fluorinated alkenyl with 2 to 7 C-atoms,
• are, independently of each other,
• L21, L22, L23, L24,
• L31 and L32 are, independently of each other, H or F,
• X2 and X3 are, independently of each other, halogen, halogenated alkyl or alkoxy with 1 to 3 C-atoms, or halogenated alkenyl or alkenyloxy with 2 or 3 C-atoms,
• Z3 is —CH2CH2—, —CF2CF2—, —COO—, trans-—CH═CH—, trans-—CF═CF—, —CH2O— or a single bond, and
• n and o are, independently of each other, 0 or 1;
• and wherein the liquid crystal medium has a Δε, at 1 kHz and 20° C., of 8 to 14.