电子触摸屏毕业论文液晶触摸屏系统开发.pdf

中国计量学院 毕业设计（论文） 题目： 液晶触摸屏系统开发 二 级 学 院 信息工程学院 专 业 电子信息工程 班 级 姓 名 指 导 教 师 2006年5 月29 日 摘 要 中国计量学院毕业设计（论文） II触摸屏作为一种全新的输入设备，具有坚固耐用、反应速度快、节省空间、易于交流等许多优点利用这种技术，我们用户只要用手指轻轻地指碰计算机显示屏上的图符或文字就能实现对主机操作，从而使人机交互更为直截了当液晶显示器因其功耗低、重量轻而成为便携式应用中的主流技术点阵式液晶显示器（LCD）不仅可以显示数字、字符，还可以直接显示汉字以及图形曲线，实现屏幕菜单人机对话操作本文主要介绍了以FM7843为控制器的触摸屏和以SED1335为控制器的液晶屏的原理及其与单片机8051的接口设计，以此来阐述液晶触摸屏系统的设计原理及其实现方法 本次设计主要实现的功能是液晶屏上显示汉字和字符，用触摸屏控制液晶屏的显示，液晶屏设计了四页显示汉字及字符，按触摸屏的按键可以翻页来查看每页液晶屏显示的内容。

关键词：触摸屏；单片机；液晶屏；FM7843；SED1335 中国计量学院毕业设计（论文） IIIAbstract Touchescreen as one kind of brand-new input device, has durable, the reaction rate firmly quick, the economical space, is easy to exchange and so on many merits. Using this kind of technology, our user so long as gently refers with the finger bumps on the computer display monitor the chart symbol or the writing can realize to the main engine opraation,thus cause the man-machine to be alternately straightforwarder. The liquid-crystal display is low, the weight lightly because of its power loss becomes in the portable application the mainstream technology. The lattice type liquid-crystal display (LCD) not only may demonstrate the numeral, the character, but also may directly demonstrate the Chinese character as well as the graph curve, realize the screen menu man-machine dialogue operation. This article mainly introduced as the controller touches the screen and take SED1335 take FM7843 as the controller liquid crystal screen principle and its with the monolithic 8051 connections design, by this elaborated the liquid crystal touches the screen system the principle of design and its the realization method . This design main realization function is on the liquid crystal screen demonstrated the Chinese character and the character, with touched the screen control liquid crystal screen the demonstration, the liquid crystal screen has designed four pages of demonstrations Chinese characters and the character, according to touched the screen the pressed key to be allowed to turn the page to examine each page of liquid crystals screen demonstration the content. Keyword:toughscreen;microcontroller; liquid-crystal display;FM7843;SED1335 中国计量学院毕业设计（论文） IV目录 0.前言 ................................................................................................................................................... 1 1.设计要求 ........................................................................................................................................... 2 2.系统的硬件介绍 ............................................................................................................................... 3 2.1触摸屏的硬件介绍 ................................................................................................................. 3 2.1.1触摸屏的介绍及其组成结构 ...................................................................................... 3 2.1.2触摸屏控制器的介绍及其应用 .................................................................................. 5 2.2液晶屏的硬件介绍 ................................................................................................................. 7 2.2.1液晶显示模块控制介绍 .............................................................................................. 7 2.2.2 SED1335与MPU的接口 ........................................................................................ 10 2.2.3液晶显示控制电路特性 ............................................................................................ 10 2.3系统的原理与接口介绍 ....................................................................................................... 11 2.3.1单片机与触摸屏控制器接口 .................................................................................... 11 2.3.2单片机与液晶控制器接口 ........................................................................................ 12 2.3.3其他接口介绍 ............................................................................................................ 13 3.系统的软件接口介绍...................................................................................................................... 15 3.1触摸屏的软件接口介绍 ....................................................................................................... 15 3.2液晶显示控制器SED1335的软件接口特性 ..................................................................... 18 4.总体方案 ......................................................................................................................................... 20 5.系统的工作流程及功能介绍 .......................................................................................................... 21 5.1系统的工作流程................................................................................................................... 21 5.2系统实现的功能................................................................................................................... 22 5.2.1触摸屏内部控制器的转换原理 ................................................................................ 22 5.2.2系统实现的功能 ......................。