Led Sign
Introduction
A LED screen is an electronic device made up of LEDs that can display data, information, images, videos, etc. to spectators close to it. It is characterized by being composed of light-emitting diodes or LEDs (from the English acronym LED, from light-emitting diode).
This type of screen should not be confused with LCD or Plasma screens with LED backlighting, currently used in laptops, monitors and televisions. Where the last mentioned, they do contain LEDs, only as background lighting (or backlight in English), to increase the brightness, sharpness, contrast, etc., of these devices with this excellent technology.
The electronic LED display is made up of pixels using LED modules or panels (light-emitting diodes), whether monochromatic (a single LED color), Bicolor (two types of LED colors) or polychromatic: the latter are in turn made up of RGB LEDs (red, green and blue, the primary colors of the additive color spectrum). These LEDs form pixels, which allows characters, texts, images and even video to be formed, depending on the complexity of the screen and the control device. The most frequent adaptations for LED screens are: indicator, informative, advertising and high-resolution full-color video screens for concerts, advertising purposes, architectural projects, theaters, public events, etc. Due to its great resistance, maneuverability, simplicity to achieve the desired screen dimension, omission of separations between module or panel joints, much longer useful life, ease of maintenance, etc., it easily adapts to outdoor spaces or for indoor use.
In LED screens with RGB pixels, a color palette is obtained through the additive mixing of light, in order to obtain a display of several million colors that any conventional projector, television or monitor can reach.
Main uses
Contenido
El uso de pantallas de ledes se ha extendido y masificado en la actualidad. Se destacan para mostrar información y publicidad visible desde grandes o pequeñas distancias.
En comparación con los letreros publicitarios o los carteles estáticos, las pantallas de ledes ofrecen un dinamismo y vanguardia para un medio de información más rápido, fácil de sustituir y atractivo para la atracción de espectadores.
El sistema de control de las pantallas de ledes se puede realizar de una forma centralizada (RED local con cable UTP CAT5 o CAT6 para mayor confiabilidad de transmisión de datos) o a distancia (con fibra óptica, red inalámbrica o control 3G o 4G). También es posible destacar el uso de pantallas gigantes de tecnología led policromáticas de alta resolución, con vídeo a todo color en actos multitudinarios, donde es imposible tener una buena visión de lo que sucede: conciertos, mítines, actos públicos, competiciones, estadios, etc. No hay que olvidar los avisos led decorativos, que en muchas ocasiones forman parte de la propia iluminación del lugar, tales como discotecas, bares, suelos y paredes de pistas de baile, centros comerciales, etc.