A) Single chip computer: Responsible for information editing and control the screen body B) Computer: Any computer with the installation of simplified Chinese, Win98, Win95, Win2000 and a serial-port (Prepared by user) C) Display screen body: Composed of control circuit, drive circuit, electricity power, Lighting parts, etc. D) Application software: With the platform of Windows98, Windows95, WindowsNT, The matching user software of display screen could go with the picture and character makeup operating to the screen displaying content and the control of different displaying function of display screen