OLED - Wikipedia
https://en.wikipedia.org/wiki/OLED
An organic light-emitting diode (OLED or organic LED), also known as organic electroluminescent (organic EL) diode, is a light-emitting diode (LED)...
Homepage - Universal Display Corporation | What is an OLED
https://oled.com/
What is an OLED? Organic Light Emitting Diode (OLED). FOLED. TOLED. WOLED. OLED Markets. Displays.