Photo-addressable Color Electronic Paper

Abstract

The structure of the RGB stacked layers is examined to achieve full-color in the photo-addressable electronic paper. Although the reflectivity of this structure is theoretically high, the problem of controlling each color layer has not been solved. In this work, we present two novel methods which provide promising solutions. One is a threshold shift method, which enables two outer voltage levels to select eight colors. The other is a complementary color OPC method, which enables the addressing light of the different colors to control a state of reflection of each layer selectively. By integrating these two solutions, we present a full color E-Paper which is operated with the hybrid method.