Liquid-crystalline mixtures for the guest-host effect

摘要

The invention relates to coloured liquid-crystalline nematic mixtures for opto-electronic components for the colour display of numbers, symbols and graphics. The object of the invention is to provide nematic liquid-crystalline mixtures for the guest-host effect having positive contrast with a pure red colouration and high stability. According to the invention, from 1 to 15 mol % of novel derivatives of tetrazine of the formula.