In modern times of informational, has become the person through the propaganda medium to gain the information one main method. In many types’ propaganda media, entire colored. The high resolution LED large screen electron display monitor has the color to be rich. Brightness adjusts can carry on the emergency broadcast and the picture edition and so on the prominent characteristic. Is playing the role which cannot be substituted but the video frequency demonstration technology is essential technology. How to understood the demonstration principle and controlled the goal which this topic had to solve.
This article introduced LED intelligence display screen structure originally, and has driven the circuit moving and coming to control the entire LED lattice demonstrating circuital composition. Adopt the monolithic machine. System has designed out one kind of comparatively simple display under the control of. Have resolved the principle pursuing the principle and display under the control of that the Chinese character demonstrates, and how the signal demonstrating a data becoming electricity frequency by the fact that the display under the control of circuit changes has been demonstrated out. The principle showing to owing a Chinese character lattice the screen demonstrating method and the lattice a circuit has carried out detailed analysis. Has proven that and process practice: Should drive and demonstrate the circuit logic function reliably. The range reality is applied is broad.
Key word: LED lattice display screen、 monolithic machine、 driver circuit、 display control electric circuit
