Development of photo-addressable electronic paper using cholesteric liquid crystals

Abstract

We have developed a novel electronic paper consisted of cholesteric liquid crystal(ChLC) and organic photo conductor(OPC). The microencapsulated ChLC stacked on the dual CGL OPC can be switched between focal-conic state and planar stale by light modulation under AC voltage. The prototype demonstrated a bistable and flexible mono-color image. We also showed a feasibility of full-color with a new driving scheme for stacked RGB ChLCs.