目前，以数字化为主要特征的LED显示屏，已在很多领域得到应用，但通常都只是作为单一的显示屏，仅起显示作用，观众只能被动地接受所显示的信息，没有参与感。本文提出了互动LED显示屏的概念，并介绍了实现互动LED显示屏的原理，使得LED显示屏不但能显示，而且能够互动，增加了LED显示屏的趣味性，拓宽了LED显示屏的应用范围，并提供了几种实现互动的方案，供同行或专家参考、讨论。

At present, the digital LED display has been applied in many areas, but usually only used as a screen with audience passively accepting the information displayed, there is no sense of participation. In this paper, we mentioned the concept of interactive LED display, and introduced the principle of interactive LED display. LED display not only can show information, but also interact with audience, which makes LED Display more interesting, broaden the scope of application of the LED display. This issue discusses several interactive programs, for reference by peers or experts, to discuss.