Epson's High-Resolution Electronic Paper Could File the Real Thing Under B for Bin At SID 2008 last weekend, Epson unveiled some pretty spanky A4-sized electronic paper. Boasting a pixel count of 3104 Ã 4128 (that's around 385 resolution ppi), it's almost double the size of the company's previous e-paper offering. With 40 per cent reflectance and a 10:1 contrast ratio, the technology was created using E Ink Corp's electrophoretic electronic ink, and Seiko Epson's low-temperature polycrystal Si-