What is an LED?

LED stands for “light emitting diode” and it is a semiconductor device that converts an electrical current to visible light. It is a self-emitting light source. Because of its relative power efficiency, solid-state design, and long life-span it is a popular building material for a number of product categories:

  • LED architectural lighting, replacing incandescent or fluorescent bulbs in light fixtures both indoor and outdoor. These LEDs are structured to emit white light.
  • LED backlights used in LCD (liquid crystal displays) and video walls as a light source, replacing cold cathode fluorescent lights (CCFL) in flat panel displays and monitors. In consumer products, these LED-backlit LCD displays are called “LED TV”. These LED backlights can be structured to emit white light or can also be controlled to create wider color gamut displays.
  • LED projection engines replacing other light-emitting bulb materials to produce the light that shines against mirrors or through lenses to create front and rear-projection (RPC) solutions.