LED (Light Emitting Diode)

An LED (Light Emitting Diode) is a semiconductor device that emits light when current passes through it. In display technology, LEDs are used primarily as backlight sources for LCD-TFT panels, replacing CCFL lamps due to their higher brightness, longer lifespan, and lower power consumption. LEDs are also used as the direct image source in LED displays, where the screen is built from a matrix of diodes (e.g., videowalls, stadium displays, or microLED panels). Regardless of application, LEDs are valued for efficiency, high brightness, and robustness in varying environmental conditions.