There's plenty of info on internet about OLEDs. Not that many people know about it, but it's been in the development stage for quite some time. The Samsung Galaxy S3 and S4 have OLED screens, which will improve more over time. An OLED TV screen uses OLEDs (Organic Light Emitting Diodes). OLED TVs are brighter, more efficient (use less power), thinner, have very high contrast ratios, and better refresh rates than LCD or Plasma. OLED TVs are supposed to deliver incredible picture quality. OLEDs are made by placing thin films of organic (carbon-based) materials between two conductors. When electrical current is applied, a bright light is emitted. OLED materials emit light and do not require a backlight (unlike LCDs or backlit LEDs). Each pixel is a small light-emitting diode. LG and Samsung have started to produce OLED TVs (55 inch) but they are very expensive, but that'll change. Wait a year or two and you'll hear more about them. There is also OLED lighting in the future. More info at
http://www.udcoled.com