An LED screen display is a video display that uses light-emitting diodes, and these diodes make-up a video display known as LED display. In the 1990s, LED displays emerge as a new type of flat panel display. Due to its pluses, like: clear picture, high brightness, easy control, these are extensively employed in public places, such as convention center, exchange market, railway stations, banks, hospitals, stadium place, residential communities and airports to exhibit a lot of information.