What is an OLED (Organic Light-Emitting Diode) and how does it function to produce light?

An OLED (Organic Light-Emitting Diode) is a type of display technology that uses organic compounds to emit light when an electric current is applied. In an OLED, each pixel is made up of organic materials that emit light when an electric current passes through them. This allows for vibrant colors and high contrast levels in displays.