LED monochrome dot matrix display is the use of light-emitting diode module, or pixel units of flat display screens. Because of its high light, long life, flexible configuration, rich colors as well as indoor and outdoor environmental adaptability, etc. Jinan led module, since the late 1980s, with the improvement of LED manufacturing technology in abroad it has been widely used. After China's reform and opening up, especially the rapid growth of the national economy in the 1990s, the increasingly strong demand for the release of information public, LED display appears exactly adapted to the market situation, and thus the design and manufacturing technology and application in LED display level have been improved rapidly. 1. Control system cost: the display sending card and receiving card fees are generally used Shenzhen Linsn synchronous control system. The main display area size is determined according to the number of cards slim led module, generally speaking the larger the area the higher the density, the more the number of receivers used by the card module Shenzhen led Division I accounted for separately. 2. The cost of equipment: computers, air conditioners, audio amplifier, power distribution equipment, multi-function control card, surge arresters, and LED video processor, site wiring. (Of course led modules, some of which device the user can also bring their own good, of course, less than the device may not be equipped, our company will recommend a reasonable scheme.) Sichuan led module, led modules, Gao Jin photoelectric By Jinan Optoelectronics Technology Co., Ltd. Gao Jin. Jinan Gao Jin Optoelectronics Technology Co., Ltd. (www.zhkyled.com) strong, credible, in Jinan, Shandong liquid crystal device industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Gao Jin photoelectric and you hand into the brilliant, for a better future!