A4 size e-paper

At SID 2008 in Los Angeles, Seiko Epson showed off a new electronic paper. The 13.4-inch (A4-size) electronic paper was developed by combining electrophoretic electronic ink of E Ink Corp and a low-temperature polycrystal Si-TFT of Seiko Epson. It has a pixel count of 3104 × 4128 and definition is as high as 385ppi. Contrast ratio is 10:1 and reflectance is 40%. With this prototype the company believes it entered the final stage of replacing traditional paper with electronic paper.