Electronic paper (also known as electronic ink).
One single sheet of Electic Paper can replace traditional multi-page pulp based papers. A portable electronic device that stores images and text and allows readers more flexibility.
Different manufacturers have different methods, but most follow a similar method. A thin sheat of plastic contains something that can change colors. Most often now it's beads, black on one side, white on the other.
Nicholas K. Sheridon patented a variation in 1978
In 2005 Fujitsu has created a form of epaper that can hold images even when unpowered and can gather information wirelessly.
Seiko Watch has an ultra thin watch made from epaper.
- E Ink Corp
- Treeless Systems
- Philips Research Laboratories