Researchers have developed the world's most efficient organic light-emitting diodes (OLEDs) in plastic. OLEDs provide high-contrast and low-energy displays and are becoming the dominant technology for advanced electronic screens.
http://ummid.com/news/2011/November/01.11.2011/new_generation_plastic_developed.htm
http://ummid.com/news/2011/November/01.11.2011/new_generation_plastic_developed.htm