http://www.techradar.com/news/television/oled-tv-what-you-need-to-know-1056228

OLED is the future of television. Or, at least one of the many possible futures televisions could take down the road. It's a technology that becomes infinitely more interesting the more you know about it and, even for those of us who know quite a bit, still finds a way to improve upon itself year over year. 

OLED (which stands for Organic Light Emitting Diode) describes a type of panel that TVs use - like LED-LCD, plasma or CRT. It's different from the other types of panels that have come before it, but the overarching idea is exactly the same: OLED panels help bring images and video to life in front of your eyes.