http://www.techradar.com/news/television/hdtv/10-things-you-need-to-know-about-oled-631848
Just as LCD and plasma screens push CRTs out of the market, there arrives a new contender, in the form of the Organic Light-Emitting Diode display. Unlike LCD and even standard LED screens, OLED displays require no backlighting. This has the dual benefit of making them extremely thin and far more energy efficient. Since each pixel creates its own light, they are also capable of incredible refresh rates and amazing contrast ratios.
OLEDs are also potentially capable of feats that, before now, were confined to science fiction. These screens can be transparent and/or flexible, giving them applications such as functioning as a Heads Up Display in cars and airplanes.
However, for all of these advantages, OLED screens are not without drawbacks. They are, for the moment, ridiculously expensive to manufacture, and this cost increases the larger the display becomes. There also remain concerns about their longevity. However, once these issues are cleared up, we will certainly have taken another large step forward in display technology.
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