| abstract |
Liquid-crystalline mixture for electro-optical applications containing one or more compounds of the general formula wherein R¹ denotes C₁-C₁₂ alkyl or C₂-C₁₂ alkenyl; R² is C₁-C₁₂ alkyl, C₁-C₁₂ alkoxy, C₂-C₁₂ alkenyl, C₃-C₁₂ alkenyloxy or cyano; and Z¹ represents a simple covalent bond or the group -CH₂-CH₂-, and one or more compounds of the general formula wherein R³ is C₁-C₁₂ alkyl or C₂-C₁₂ alkenyl; Ring A¹ represents trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl, pyridine-2,5-diyl or pyrimidine-2,5-diyl; and Z² denotes a simple covalent bond or, if ring A¹ is trans-1,4-cyclohexylene, also denotes the group -CH₂CH₂-, in a weight ratio of the compounds of the formula I to the compounds of the formula II from 2: 1 to 20: 1. |