Reflective Bistable Twisted Nematic Liquid Crystal Display

Abstract

A reflective bistable twisted nematic (BTN) liquid crystal display has been developed. It combines the advantages of a truly reflective display without the rear polarizer, and the bistable nature of the zero voltage state. It was found experimentally that switching between the two bistable twist states could be achieved by adjusting the magnitude of the selection voltage pulse, just like the case in transmittive BTNs. In demonstrating the reflective BTN, we also show for the first time bistability between the -36° and 324° twist states.