RECENT LIQUID-CRYSTAL MATERIAL DEVELOPMENT FOR ACTIVE-MATRIX DISPLAYS

The structural dependence of the optical and dielectric physical prope rties of liquid crystal (LC) materials is investigated with the aid of molecular modeling. A material characterization of LC materials is ma de using fundamental physical measurement values, e.g. optical, dielec tric, elastic, and viscous parameters. A novel mixture design based on selected LC materials leads to significant improvements that fulfill the requirements for active matrix LC displays, for instance, fast swi tching times, lower power consumption, and wide operation temperature ranges. The development of LC displays from the material supplier's po int of view is briefly reviewed.