Organic light emitting diodes (OLED)

Organic light emitting diodes (OLEDs) are very promising. hey are more efficient than incandescents without the downsides of CFLs (fragility, mercury), and they have the potential to become less expensive than regular LEDs.

In late 2005, Osram was announcing “a breakthrough in polymer-OLED technology by achieving a record 25 lumens-per-watt (lm/W) of device efficiency”. Now, they are announcing that they manufactured warm white OLEDs with an efficiency of 46 lm/W and a life of more than 5000 hours at a brightness of 1000 cd/m2. That’s close to the efficiency of fluorescent lamps, and more than twice that of incandescent lamps.

– from treehuggers