Study Of Led Display Screen On Interface Technique

The LED display screen is a newly arisen display medium, it's a highly development product who gather the photo electricity and computer technology. The LED display screen has a rapid development with the integrate circuit and the computer. They have been used in all areas. But the LED display screen has a big problem, that is the display screen and the PC interface are not in the same level.Here we introduced a block that bases on PC. It's special for LED display screen and we studied it carefully. It has high performance and high accuracy. Analog signals from VGA port can be dealed with by this block. The block designed for LED settle the problem that stayed for a long time and the media card can be replaced.The blocks adopt the international standard interface technique and accomplish the function of "plug- and- play". The unit modularize design is going to bring convenience for application. Digital the output analogs signals and transport them to the LED display screen, increasing the display effecting and widen the area of screen. The design has widely economic foreground.The paper gives the main circuit configuration and the main hardware circuit. It also tell us some key chips and their function.