Invented in the 1980s at eastman kodak, organic light-emitting diodes (OLEDs) are composed of a layer of organic material situated between an anode and a cathode and deposited on a substrate. When voltage is applied to the OLED cell, the injected positive and negative charges recombine in the missive layer and create electroluminescent light. A modern OLED device may use many layers to improve efficiency, but the basic functionality remains the same.
展开▼
