![]() Aside from LED signs and digital LED signs that are very common these days, light emitting diodes are also used in simple and practical applications by artists (to light up works of art), modernist sculptors (to come up with sculptures that focus on the interplay of light and colors) and even homeowners to light up holiday decorations with a multitude of twinkling lights. An advertiser can actually choose to use make full use of LED many capabilities in coming up with complex signs or digital displays that cover the whole spectrum of the three LED wavelengths. This is because of the wide range of advertising possibilities that LED offers. The industry where LED is probably most widely used is advertising. ![]() Nowadays the applications using LED or light emitting diodes run the whole gamut of lighted signages, traffic signs, in-dash indicators, vehicle headlights and tail lights, digital LED signs, running text displays and many more. Light emitting diodes have been around since the 1960s with LED being used primarily to produce low-intensity red light. This process is called electroluminescence. When LED is switched on the electrons inside the device release photons and emits the color of light corresponding to the value of the energy released by the photon. Led 101 A Primer On Light Emitting DiodesLED which stands for light emitting diode, is a semiconductor lightning source that uses visible, ultraviolet and infrared wavelengths to emit very bright light.
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