串行输入的多汉字LED智能显示单元设计

针对公路、金融、证券、车站、码头、体育场等公共场合的需要,设计了一种简单实用且扩展性良好的串行输入的多汉字LED智能显示单元,介绍了其原理及设计方案,对控制电路的接口和硬件逻辑时序作了详细的分析,并给出了完整的硬件控制电路。该LED显示屏幕在地铁的旅客信息系统中得到了实际应用,实践证明能很好地静态动态显示,且亮度高、无闪烁。

Design of Chinese Characters LED Intelligent Display Unit based on Serial Input

According to the requirement of public, such as highway, finance, stock, rail station, dock, palaestra, etc. this paper designs a Chinese character LED intelligent display unit based serial input, which is simpleness and practicality and excellent expendability. The working concept and design program are presented, and then interface of control circuit and the logic timer of hardware are analyzed in detail. The LED display has already been applied to travel's information system of railway, and it is proved to provide fine static and dynamic display with high brightness and without blinking.