E-ink

E-ink or Electronic ink is a revolution in display technology.

E-ink displays are very flexable and virtually indestructable as shown :- www.eink.com/rugged.html

"E Ink displays are easier to read than backlit displays, because they mimic the appearance of ink on paper." www.eink.com

E-ink is also green as it uses less power. A 12” LCD-equipped device uses, in 20 hours, the equivalent of 36 AA batteries while an E Ink 12-inch display uses just one battery's worth. www.eink.com

This is a new technology and is still evolving. The latest incarnations are colour opening out the field of usage a lot more.