LCD1602汉字显示技术在万年历中的应用及Proteus仿真

Application of Chinese Characters Display Technology of 1602 in Calendar and Proteus Simulation

LCD1602是一款最常用也是最便宜的液晶显示屏,由于内部没有汉字库,在界面和数据显示时,只能显示英文单词,对使用者要求较高,很不方便。本文介绍了LCD1602内部存储器,利用厂家留给用户自己定义点阵型显示数据的CGRAM存储器,建立了自定义汉字点阵字库,在Proteus环境仿真显示了汉字,实际应用在带温度显示的万年历中,使其成为一款具有中文界面的显示器件。这种用法提供了良好的人机界面,不需要使用者有英文水平,降低了开发成本,而且可以更广泛的在智能仪表、通信和控制等领域推广。

LCD1602 is a most common and the least expensive LCD screen.Because it lacked Chinese characters base,it can only display English words,which cause inconvenience for users.This article describes the internal memory of the LCD1602,and how to use user-defined points of CGRAM memory which designed by manufacturers,to build their own character dot-matrix font.In the Proteus environment the Chinese characters are simulated,and used in the calendar with a temperature display,making it a display device with a Chinese language interface.This usage provides a good human-machine interface,lowers development costs,and widens its application in intelligent instrument,communication and control areas etc..