LIQUID CRYSTAL MEDIUM AND LIQUID CRYSTAL DISPLAY WITH A HIGHLY TWISTED STRUCTURE

摘要

A liquid crystal medium (I) having a helical twisted structure comprises: (a) a nematic component comprising at least one compound having a 3,4,5-trifluorophenyl group; and (b) an optically active component comprising at least one chiral component whose twist properties and concentration are such that the helical pitch of the medium is no greater than 1 micrometers. Independent claims are included for: (1) an optoelectronic liquid crystal display containing the medium (I); (2) an active laser material or resonator for laser applications containing the medium (I); and (3) a laser arrangement containing the medium (I), active laser material or resonator.