Switching of liquid-crystal devices between reflective and transmissive modes using long-pitch cholesteric liquid crystals

Opt Lett. 2010 Oct 15;35(20):3504-6. doi: 10.1364/OL.35.003504.

Abstract

We propose liquid-crystal (LC) devices capable of switching between reflective and transmissive modes using the scattering and transparent states of long-pitch cholesteric LCs (CLCs). Two different device configurations can be realized by changing the location of a CLC layer. Low-power operation without the parallax problem can be achieved using the bistable switching of CLCs. We believe that the proposed devices are potential candidates for highly efficient transflective displays.