LED点阵电子显示屏制作简单，安装方便，被广泛应用于各种公共场合，如汽车报站器、广告屏以及公告牌等。本文介绍的是一种可用在值班室外等场合的公告牌的LED点阵电子显示屏设计。公告内容随时可以更新，能够实时显示温度和日期时间，并具有自动亮度调节功能。考虑到所需元器件的易购性，本设计使用了8×8的点阵发光管模块，组成16×64发光点阵，显示待定的中文、字符以及数字。-Dot Matrix LED electronic display in producing simple, easy installation, are widely used in various public occasions, such as auto-stop device, advertisement screens, as well as bulletin boards. This article describes a kind used in the duty room and other places outside of the electronic bulletin boards, LED dot matrix display design. Notice the content can be updated at any time to real-time display of temperature and date and time, and has automatic brightness adjustment function. Taking into account the ease of purchase of the required components, this design uses an 8 × 8 dot matrix LED modules, composed of 16 × 64 LED dot-matrix, showing pending Chinese characters and digital.