LED点阵显示器的设计与制作

论文编号:ZD829    论文字数:18895,页数:56

 摘  要
    在信息时代，通过宣传媒介已成为人们获取信息的一种主要手段。在诸多类型的宣传媒体中，全彩色、高分辨率的LED大屏幕电子显示屏具有色彩丰富、亮度高且可调、能够进行插播和画面编辑等突出的特点，正发挥着不可替代的作用，而视频显示技术是其中的关键技术。如何了解显示原理及控制成了我们这个课题所要解决的目的。
    本次论文设计出了一种比较简单的显示控制系统，解决了图文屏汉字显示的原理，显示屏显示控制的原理，及如何把显示数据通过显示控制电路转化成电频信号显示出来。采用该技术可以使我们能够进一步的了解不同颜色的显示屏的制作原理。
 
 
 关键词：LED 图文屏  显示屏控制  显示控制电路
 
 Abstract
 In the information age, has become the people through the propaganda medium to gain the  information one main method. In in many types propaganda media, entire colored, the high resolution LED large screen electron display monitor has the color to be rich, brightness Gao Qieke 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 understood the demonstrationprinciple and controlled the goal which our this topic had to solve.
 This paper designed one kind of quite simple display control 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. Uses this technology to be possible to enable us the further understanding different color display monitor manufacture principle.
 
Key word: LED  Chart article screen   display monitor control   display control
          Electric circuit
目 录
摘要……………………………………………………………………………. . .……………..1
1 前言…………………………………………………………………………………………..1
   1.1 显示技术及其应用….…………………………………………………………………..2
   1.2  电子显示屏的发展趋势……………………………………………………………….2
2 设计方案的构思………………………………………………………………… ………..4
    2.1  设计构思……………………………………………………………….…….…….…..4
    2.2  方案论证……………………………………………………………….…….…….…..6
 3  LED图文显示器的特点…………………………………………………….………….8
 3.1 图文显示的特点……………………………………………………………………….8
 3.2  汉字显示的原理………………………………………………………………………13
4  显示驱动单元的硬件电路设计………………………………………………………..16
 4.1 LED显示屏驱动电路设计……………………………………………………………..16
 4.2  具体各器件属性介绍…………………………………………………………………18
 4.3  单元结构………………………………………………………………………………32
 4.4  显示板的设计与制作……………….…………………………………………………33
5  控制板电路的设计与制作……………………………………………………. .……….37
 5.1  电路的设计及特点………………………………………………………………….37
 5.2  原理图……………………………………………………………………………….38
    5.3  PCB图………………………………………………………………………………..39
6  软件的设计与调试………………………………………………………………….......40
 6.1  软件的程序流程图…………………………………………………………………..40
 6.2  调试与性能分析……………………………………………………………………..42
7  总结…………………………………………………………………………………………44
8  致谢………………………………………………………………………………….......…45
9  参考文献…………………………………………………………………………….......…46
   附录…………………………………………………………………………….......…………47