Flat-screen light bulbs switch on (BBC) {OLED's match FL's}

By Jason Palmer
Science and technology reporter, BBC News

Researchers have demonstrated white, organic light-emitting diode (OLED) sources with the same efficiency as fluorescent light bulbs.

The result brings closer the prospect that OLEDs will be the flat-screen light sources of choice in the future.

The limited lifetime of the blue-emitting part of the devices means they survive for just hours, but new blue-emitting materials are on the horizon.

The results are published in the journal Nature.

There has been significant work in OLEDs in recent years, so that small displays and even televisions based on the technology are beginning to come to market.
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more: http://news.bbc.co.uk/2/hi/science/nature/8048480.stm

http://www.nature.com/nature/journal/v459/n7244/full/nature08003.html
(abstract; full text by subscription)