摘要LED电子显示屏是一种显示文字、图像、二维或三维动画等信号的理想的公众信息显示媒体。它实时、动态的以不同的方式显示文字,图片,动画及视频等各种综合信息。不同规格的电子显示屏遍布于我们日常生活中的各个领域,如银行,医院,公交,机场,车站,码头,公路等。在信息传播与监控调度领域得到了广泛的应用。LED电子显示屏内嵌控制管理芯片。由此控制管理芯片控制显示屏所显示的综合信息内容及显示方式。本文论述了LED显示屏的结构、特点、LED串行接口的工作原理、散热等内容展开的设计，控制系统采用RS232总线与上位机通信，通信距离约100米，以及LED散热的解决方法。关键词：LED；显示屏；散热；串行通信AbstractLEDelectronicdisplayisadisplaytext,images,two-dimensionalorthree-dimensionalanimationandotherpublicinformationsignalistheidealdisplaymedia.Itisreal-time,dynamicdisplaytextindifferentways,pictures,animationandvideo,andothercomprehensiveinformation.Acrossdifferentspecificationsoftheelectronicdisplayinourdailylifeinvariousfields,suchasbanks,hospitals,publictransportation,airports,railwaystations,docks,roads.Schedulinginthefieldofinformationdisseminationandmonitoringhasbeenwidelyused.LEDelectronicdisplayembeddedcontrolICs.Controlandmanagementchiptocontrolthisdisplayshowsthecomprehensiveinformationcontentanddisplay.ThisarticlediscussesthestructureofLEDdisplayscreen,features,LEDserialinterfaceworks,heat,etc.tostartthedesign,controlsystemandPCwithRS23buscommunication,communicationdistanceisabout100meters,andLEDthermalsolution.Keywords:LED;display;heat;serialcommunication第1页共29页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共29页目录第1章概述.........................................................21.1LED发展史..............................................................................................................21.2国内外LED产业发展状况...................................................................................31.3LED基础知识.......................................................................................................31.4LED的综合优势...................................................................................................61.5LED显示屏技术参数...........................................................................................71.6本章小结..............................................................................................................10第2章串行接口....................................................112.1串行通信的工作原理.............................................................................................112.2RS-232C串行通信简介.........................................................................................122.3RS-232C引脚及使用.............................................................................................142.4MAX-232介绍........................................................................................................15第3章LED图文显示屏...............................................173.1LED图文显示屏特点.........................................................................................173.2图文显示屏的基本结构.......................................................................................173.3图文显示屏的硬件设计......................................................................................203.4本章小结............................................................................................
