An electronic device of an embodiment of the invention is for at least partially displaying a pixel of a displayable image. The electronic device includes a first reflector and a second reflector that define an optical cavity therebetween, and which is selective of a visible wavelength at an intensity...http://www.google.de/patents/US20040218251?utm_source=gb-gplus-sharePatent US20040218251 - Optical interference pixel display with charge control
