Outdoor two-color LED display for each unit includes red, green and two colors, red and green in all 256 gray form the 65,536 kinds of colors. -Screen computer control center, equipped with sound and video software programming software, electronic display boards and electronic display window to form one mapping, showing the contents of real-time synchronization, you can easily change the size of the screen, which can be received from the VCD, Video recorders, television sets, video signal. Of the control system of the most prominent features are: a high concentration of control logic, and a high degree of integration. The display shows the front-end module includes only the main part of the drive circuit, even if the color is functional by the completion of the reunification of the master, the module is extremely simple circuit has greatly improved the reliability of the screen body, and maintainability.