彩色液晶模块的图文与曲线显示方法  

Text-image and curve display methods using color LCD module

作　　者：秦刚[1] 段晨东[1] 李磊[1] 代杰[1] 

机构地区：[1]长安大学电子与控制工程学院,陕西西安710061

出　　处：《电子技术应用》2012年第3期54-56,59,共4页Application of Electronic Technique

基　　金：国家科技支撑计划项目(2008BAJ09B06)

摘　　要：为了使低端MCU获取高性能的实时监视界面,研究了基于彩色液晶模块的字符串、静态与动态图像的显示方法。以微控制器为核心,采用8 bit总线方式开发了彩色TFT液晶模块的智能仪表界面。在论述图像转换像素矩阵原理的基础上,研究了图文混合显示的方法和实现步骤,建立了测量参数与显示模块像素之间的坐标转换关系,并且利用滚屏刷新的方法实现实时曲线的动态显示。用实例验证了文本、图形和实时曲线显示方法的可行性。In order to obtain a high performance interface for realtime monitoring by using a low-end MCU, some text-image and curve display methods using a color LCD module （LCM） are introduced in this paper. By using a microcontroller as a core to build an intelligent meter, an operation interface of the meter is developed with 8-bits data bus based on a TFT LCM. Then a text-image mixed display method and its implement procedures are described on the basis of the principle of image to LCM pixelmatrix conversion. To display realtime data with curves dynamically, some coordinate transformation equations are found for the conversion of measured parameter values to LCM pixels, and as the curves displaying a scrolling display window refresh approach is applied. The display methods for text, image and reahime curve are shown to be feasible by some engineering examples in the paper.

关 键 词：智能仪表 微控制器 彩色液晶显示模块 图文显示 实时曲线 

分 类 号：TP391.8[自动化与计算机技术—计算机应用技术] TH865[自动化与计算机技术—计算机科学与技术]