Answer: OLED
Notes: Organic light-emitting diode (OLED) is a type of LED (Light-Emitting Diode) in which emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current. This is a competitive alternative to liquid crystal displays (LCDs). Recently, team of researchers from University of Minnesota, MIT, Korea Institute of Industrial Technology and Pusan National University have demonstrated a printing technique which produces fully 3D-printed flexible OLED displays.
