摘要：LED電子顯示屏是隨著計算機(jī)及相關(guān)的微電子、光電子技術(shù)的迅猛發(fā)展而形成的一種新型信息顯示媒體。它由發(fā)光二極管構(gòu)成的點(diǎn)陣模塊組成可變面積的顯示屏幕，以可靠性高、使用壽命長、環(huán)境適應(yīng)能力強(qiáng)、性能價格比高特點(diǎn)，在短短的十幾年中，迅速成長為平板顯示的主流產(chǎn)品。
本文主要介紹了LED電子廣告牌的原理、分類以及設(shè)計。通過對以單片機(jī)AT89S52為核心的LED電子顯示系統(tǒng)程序的修改，還介紹了在硬件和軟件上的實(shí)現(xiàn)過程。本系統(tǒng)具有設(shè)計簡單、成本低廉、可靠性高的特點(diǎn)，主要應(yīng)用于廳堂、車站、廣場等公共場所。

關(guān)鍵詞：LED電子顯示屏，單片機(jī)，設(shè)計

LED Electronic Billboards Designing
Abstract： LED Electronic Screen is a new form of information display media which is with the rapid developing of computers and related micro-electronics, photonics technology. It consists variable size of display screen with LED dot matrix modules. It grows rapidly in Flat Panel Screen for the mainstream products with high reliability, long service life, a strong ability to adapt to the environment, the high cost-performance characteristics in the short span of the last 10-odd years.
This paper mainly introduces the principle, classification and design of LED Electronic Billboards. Based on the monolithic integrated circuit AT89S52 as the core LED electronic display system program changes, it can also change the move style and speed of the display content and so on. The paper gives the hardware and software on the implementation process; It is simple in design ,cheap in cost and high in reliability. It is mainly used in sitting rooms, stations, squares and other public places.

Key Words: LED Electronic Screen , Micro Controller Unit(MCU), Designing

目錄
前言…………………………………….…………………………………………. ..... 1
第1章 LED電子顯示屏的概述……………...………………………………… 2
1.1 LED的簡介……………..…………………………………………. 2
1.1.1 LED的起源……………..………………………………………….......... 2
1.1.2 LED的基本概念……………..……………………………………...... 3
1. 2 LED顯示屏的簡介………………………………………………………...... 5
1.2.1 LED顯示屏的基本概念............................................................................ 5
1.2.2 幾種常見的LED顯示屏……………...………………………………... 6
1.2.3 LED顯示屏的優(yōu)點(diǎn)、性能及作用……………...…………………... 8
第2章LED廣告牌的設(shè)計………………………………………………………...... 10
2.1任務(wù)………………………………………………………................................. 10
2.2設(shè)計內(nèi)容......................................................................................................... 10
2.3系統(tǒng)硬件電路設(shè)計……………...……………………………….............. 11
第3章 LED常見問題……………...………………………………........................ 13
3.1靜電的來源……………………………………………………...................... 13
3.2靜電放電的失效模式............................................................................... 13
3.3防靜電措施……………...………………………………...................... 14
3.4運(yùn)輸與封裝.............................................................................. 14
附錄………………………………………………………………………………. 15
謝辭………………………………………………………………………………. 18
參考文獻(xiàn)…………………………………………………………………………. 19