An LED Display Is a Video Display Which Uses Light-Emitting Diodes

An LED display is a video display which uses light-emitting diodes. In the 1990s, they emergence as a new type of flat panel display. Due to LEDs' advantages such as high brightness, clear picture,control easily, they are widely used in public places such as convention center, stadium place, exchange market and airport to display lots of information. Classification and differences of LED screen: By the differences of control signal: synchronous LED display and asynchronous ones, Users can edit contents and then send them to the display screen and work independently without host computer in asynchronous LED display while synchronous ones can't. By the differences of color: singer color ones,double color ones and full color ones. Single color LED displays mainly contain indoor single color LED displays and outdoor single color ones. For many indoor single color ones, there are three kinds of colors to choose:bright red, green, and blue. They can be used in office,bank and other places, making information and services more clearly to people.The differences between them mainly lie in the numbers of color and composition of color. Simultaneously,there are also problems about LED screen. Generally speaking,druing the processing of test field intensity,the first testing can't pass. So in order to pass testing,many makers reduce the resolution of LED screen to the lowest,but in the fact,it can be impossible to use. It's wise that the LED display has appropriate resolution. The makers should consider it and there is no other good way to avoid it. When shopping for an LED goods, it is very important to keep in mind that the manufacturer's claimed display brightness and resolution will drop about 20% after several months of operation. Source: EzineArticles.com