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毕业设计论文-LED电子显示屏的设计,33页,12822字
近年来,LED(lightem itingd iode,发光二极管)电子显示屏作为一种高科技产品日益引起人们的重视。它可以实时显示或循环播放文字、图形和图像信息,具有显示方式丰富、观赏性强、显示内容修改方便、亮度高、显示稳定且寿命长等多种优点,被广泛应用于商业广告、体育比赛、交通信息报导等诸多领域。
LED显示屏的核心技术主要集中在控制器中。目前,大部分异步显示屏采用的是8位或16位的微控制器,由于受到微处理器的处理速度、体系架构、寻址范围、外围接口资源等诸多限制,已难以在要求显示较多像素、显示内容帧频较高、动态显示效果复杂的情况下得到良好的动态视觉效果。
LED显示屏控制系统性能良好,工作稳定可靠,易于维护升级,具有很高的性价比。
关 键 词
LED;数据传输;信息发布系统;单片机
Design of the LED Electron Panel
Author: chenhong Tutor: Cheng Cheng Associate Professor
Abstract
LED panel systems gains rapid development in the design, machine and application from nine-tites ages. It went thorugh from single color and two colors to image LED panel. As a high technology production, LED panel can realize real time and sequential displaying textue, graghic and images. LED panel has many special feature such as high reliability、long life、high performance、low cost、and more important high acclimatization. Moreover, with the technique of color p anel perfect increasingly,LED panel is widely used in many fields.
The core technique for a LED panel is mainly centralized on its contorller. The majority of asynchronous display panel use the 8 or the 16 micro-controllers,because the processing speed, the system construction, the addressing scope, the periphery connection resources and on so many limits, in request demonstration many picture elements, the demonstration content frame frequency has been with dificulty high, in the dynamic demonstration effect complex situation, obtains the good dynamic visual effect.
the method was favorable for the stability and efficiency of the whole system.The system was easy in maintenance and updating,and enjoys high performance/price ratio.
Key words
LED; Transnssion System; information releasing system; singlechip
目录
第一章 绪 论 3
1.1 LED显示屏的研究背景及意义 3
1.2 LED大屏幕的发展状况与趋势 4
1.2.1 LED大屏幕的发展状况 4
1.2.2 LED大屏幕的发展趋势 5
1.3 LED显示屏的信息发布技术 6
第二章 LED电子显示屏的介绍 7
2.1 LED显示屏简介 7
2.2 LED显示屏的特点 8
2.3 LED显示屏的分类 9
第三章LED显示屏的组成 11
3.1 LED显示模块结构 11
3.2 LED显示系统的构成 12
3.2.1 驱动电路 12
3.2.2 控制系统 14
3.2.3 显示类型 15
3.3 LED显示屏的硬件原理 17
第四章 LED显示屏的设计 18
4.1 LED点阵显示屏驱动设计 19
4.1.1 常规驱动电路的设计 19
4.1.2 点阵显示屏显示 20
4.2 LED显示屏的控制模式 21
4.3 LED显示屏的主控电路 22
4.3.1系统主控电路 22
4.3.2驱动芯片 23
4.4 LED显示屏的实现技术 24
第五章 LED显示屏的应用 27
5.1 LED显示屏的应用 27
5.2 总结 28
致 谢 29
◆参考文献: 30