大屏幕显示系统的硬件设计

Circuit Design of Large-Screen Display System

介绍在ＰＣ机管理下的多个大屏幕ＬＥＤ显示系统的硬件电路设计．每个大屏幕由一台或多台ＰＣＭ专用机及扫描显示电路、驱动电路组成．整个系统所要显示的信息（图形或文字）由ＰＣ机组织、处理（数据变换）及传送，并利用ＰＣ机的“键盘命令”选择不同的显示方式．

A presentation is given for the circuit design of multiple large-screen LED display systems controlled by programmable controllers; Each large-screen is composed of one or more PCM machines as specific machine, scanning display circuit and drive circuit. The information, graph or literal,which the whole system will display will be organized,handled (data conversion) and transmitted by PC personal computer land the diaplay mode is chosen from different ones by the keyboard command of PC machine.