Liquid-crystalline medium

A MIM-liquid crystal display comprising

• a MIM diode array, and
• a pair of parallel substrates having a nematic liquid crystalline medium disposed between the pair of substrates, wherein the nematic liquid crystalline medium exhibits a dielectric anisotropy of 3.0 to 4.0 and a dielectric constant perpendicular to the longitudinal molecular axes of ≧4.2, and comprises:
• a) a component A comprising one or more compounds of the formula I
• wherein
• R1 is alkyl, alkoxy, alkenyloxy, oxaalkyl or alkenyl with 1 to 15 C atoms,
• Q is CF2, OCF2, OCF2CF2 or a single bond,
• X is F or CI,
• Z1 is a single bond, and
• Z2 is —C≡C—, —CH2CH2— or a single bond,
• L1, L2,
• L3 and L4 are each independently H or F, and
• m is 0 or 1, and
• b) a component B comprising one or more compounds of the formula II
• wherein
• R2 has the meaning for R1,
• Z3 is —CO—O—, —CH2—O—, —C≡C— or a single bond,
• Z4 is —CO—O—, —CH2O— or —C≡C—,
• has the meaning given for
• and
• n is 0 or 1.