LED大屏幕显示系统的驱动方案

针对LED发光二极管显示屏在工作时由于LED的特性决定了必须要有高的刷新率和一定的导通时间才会在视觉上形成一个稳定的有足够亮度的图像问题 ,提出使用分布式控制方式及将外设作为内存来对待的I/O口与存储器统一编址方式来提高显示的刷新速度 ,从而较好地解决上述问题。文中给出了实现上述想法的硬件系统和软件系统设计方案。分配了分布式计算机系统中上位机与下位机的分工。

Driving plan for the display system of LED big screen

This paper, aimed at the problem that a stable and bright enough picture can be produced unless there is a high refresh-rate and a certain period of time of going to working state, which is decided by the properties of light-emitting diode when the display-screen of LED is working, presents the idea to use DCS and I/O part as the memory to unify address to improve the refresh_rate. Thus , the above problems can be solved in a more efficient way. In this paper, a plan for designing the hardware system and software is provided to realize the above ideas. The paper also assigns the work which is done separately by the leading unit and the led unit in a computer system.