We have developed a novel encapsulation method capable of producing single substrate multi‐color cholesteric liquid crystal displays patterned by ink‐jet printing. The top electrode can be printed onto thin excellent dielectric polymer layer covering Ch‐LC. A 10.4 inch bi‐stable display is successfully driven to demonstrate this proposed technique.

Abstract— Ink‐jet printing was used to prepare a single‐substrate multicolor cholesteric liquid‐crystal (Ch‐LC) display incorporating three Ch‐LCs exhibiting different reflective wavelengths. A room‐temperature low‐vacuum chemical‐vapor‐deposition process was developed for coating a thin polymer film onto the Ch‐LC so that the top electrode could be coated onto the Ch‐LC layer. Herein, the successful operation of such a 10.4‐in. QVGA Ch‐LC display at 40 V will be described.