LG Philips to develop the world’s first A4-sized flexible color e-paper
LG Philips developed the world’s first A4-sized flexible color electronic-paper in Korea market, which measures 14.1-inch across its diagonal and is 300 micrometers thick.
Adopting American company E-ink's E-ink, the e-paper can display up to 4,096 colors and feature 180-dgree viewing angle. It is designed to be energy-efficient; according to the company the screen remains even when it is powered off and it requires power only when the screen changes.[Source]