Abstract
In the information age, LED electronic display with its high brightness, dynamic graphic display, energy saving, particularly long life, display varied display rich, cost performance advantages, can be used in all walks of life in corporate image advertising, public places, information display and outdoor advertising, used to display Chinese characters, character and image information.
This paper designed one kind of quite simple display control system.The system has solved the chart article screen Chinese character demonstration principle, the display monitor display control principle, and how turned into the demonstration data through the control rotary-inversion the electricity frequency signal to demonstrate. Specific as to AT89S52 microcontroller core LED dot matrix display system, using simple external circuit to drive a 16 × 16LED dot matrix display, to achieve these two dynamic display of Chinese characters moving from right to left and letters moving bottom to top. Using this technology to be possible to enable us the further understanding display monitor manufacture principle.
Keywords:LED dot matrix display, display control circuit, microcontroller