LED显示屏及控制板的设计与实现

发布时间：2018-06-29 03:15

本文选题：控制 + LED　；参考：《郑州大学》2011年硕士论文

【摘要】：LED显示屏是一种以通过控制半导体二极管的亮灭为显示方式的显示屏,可用来显示图形、图像、文字、动画、视频和录像信号等各种信息。在信息大爆炸的今天,LED显示的应用得到了前所未有的发展,从街头大型的广告屏幕到室内精美的LED照明灯,甚至手表、手机和电脑等和我们息息相关的电器产品也广泛应用了LED显示屏,其充斥于我们生活的角角落落,同时也美化和方便着我们生活的方方面面。 LED显示屏控制卡又称LED显示屏控制系统、LED显示屏控制器,它是组成LED显示屏的核心器件,主要用来接受来自计算机串行口等的画面和显示信息,并置入存储器,按照分区的驱动方式生产LED显示屏能够识别的显示数据和控制时序。本文中作者基于ARM芯片LPC1765设计并实现了LED显示屏控制卡,并在此基础上对诸如行列滚动和汉字的显示等功能进行了调试。 ARM芯片在作为控制卡的核心部件方面有着诸多优点,本文首先对芯片的选择进行了分析,之后设计了功能实现中所需要的各个模块,如信号的行控制、列控制、串口和中断系统等,并完成了实物卡的制作,最后是在Keil MDK上对下位机程序的编写、仿真和调试,效果比较满意。
[Abstract]:Led display screen is a display screen which can display graphics, images, text, animation, video and video signals by controlling the brightness of semiconductor diodes. In the information explosion today, the application of LED display has been unprecedented, from large advertising screens on the street to beautiful LED lights and even watches. Mobile phones and computers, and other electrical products that are closely related to us, are also widely used in LED display screens, which fill the corners of our lives. At the same time, it beautifies and facilitates all aspects of our life. The LED display control card is also called the LED display control system and LED display controller, which is the core component of the LED display. It is mainly used to receive pictures and display information from computer serial ports and put them into memory to produce display data and control time sequence which LED display can recognize according to the drive mode of partition. In this paper, based on arm chip LPC1765, the design and implementation of LED display control card, On this basis, the functions such as column rolling and Chinese character display are debugged. Arm chip has many advantages as the core component of the control card. Then every module is designed, such as line control of signal, column control, serial port and interrupt system, etc. Finally, the program of lower computer is written, simulated and debugged on Keil MDK. The effect is satisfactory.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TN873

【引证文献】