E-paper is a display technology designed to mimic the appearance of ordinary ink on paper. Unlike a conventional flat panel display, which uses a backlight to illuminate its pixels, electronic paper reflects light like ordinary paper. It is capable of holding text and images indefinitely without drawing electricity, while allowing the image to be changed later. Availible types are from Winstar 10x2 character with each character contains 20 segment and 10x1 character with each character holding 16 segment.