A relatively low-energy means of emitting light, light emitting diode(LED) technology is used in many electronic devices used frequently in the average home. LED is different from the standard light bulb seen in most homes because it uses an electrified semiconductive material to produce light instead of an electrified filament. A nearly omnipresent form of lighting, LED technology is used in computers, televisions, remote controls, and flashlights, as well as in signs, traffic lights, and architectural and stage lighting.
In an LED light, electrified energy causes the semiconductor contained inside the LED bulb to emit light. Used to produce blue or white light, nitride is one of the most common semiconductors applied in LED modules. LED technology is used in newer television sets, where it is a replacement for the cathode ray tube (CRT) lighting which was common in the past. In LED televisions, clusters of LED diodes are arranged into panels that are triggered to light and color the picture on the screen. Televisions lit with LED technology are more energy efficient, slimmer in profile, lighter weight, and more environmentally friendly in disposal than the old CRT televisions, but they are also more expensive.
