Display on the control card types , production control card companies , such as the Qing, Yang Bang , Yi-wide , Kim Han , etc. is simply divided into : full-color synchronous card asynchronous offline card full-color video off-line card With nearly two years the rapid development of LED display , LED control card market becomes more extensive , especially in 2009 just new from the U disk LED control card is used up , available serial port connected to a computer , can also be U disk transmission of information , the provincial PC -free routing, support for analog clock , water frame , U disk LED control card can be saved by computer , the provincial wiring .

1. In the outdoor production, the glue is applied after the glue is applied, and then the kit is applied. 2, the outdoor needs to be fully waterproof, semi-outdoor does not need waterproof. 3, the outdoor brightness is higher, the brightness of the semi-outdoor can generally 4, the outdoor is made of fully enclosed box, the protection level is high; semi-outdoor is mostly made of direct aluminum or simple box, the protection level is low