基于单片机直接驱动段式LCD的驱动模块设计  

Driving Module Design for Direct Driving Segment LCD Based On A Single Chip Computer

作　　者：王月[1] 

机构地区：[1]扬州职业大学

出　　处：《微型电脑应用》2012年第4期36-39,共4页Microcomputer Applications

摘　　要：提出并设计了一种基于单片机直接驱动段式LCD的驱动模块,使用简单的附加电路实现了对背极信号的有效控制。该电路与程序相配合,实现了偏置电压控制法,交流驱动信号的产生由背极信号与段极信号的配合形成,且交流驱动信号的直流分量的平均值为零。该驱动模块具有一般性,适用于需计数、计时、状态提示等LCD显示的电子类产品中。This paper presents and designs a direct driving module based on a single chip computer, and realizes a effective control of LCD back poles＇ signal with a simple additional circuit. The circuit realizes a bias voltage controlling method by the cooperation of a program and the circuit ,and outputs AC driving signals by cooperating the signals of back poles and segment poles ,but the DC average value of the AC driving signals is zero .This driving module is common to segment LCD display ,and may be used for electronic products needing segment LCD display ,which counts ,times, mentions a state and so on.

关 键 词：单片机 驱动模块 直接驱动 交流驱动信号 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]