LED display future direction of the future display market on the one hand but also will continue to maintain growth trend Xiamen led unit board, but on the other hand will exacerbate some small LED display manufacturers in transition or eliminated. From the current level of competition in the domestic LED electronic display industry look led unit board production, competition in the domestic industry is still in its early product competition level Hefei led unit board, the competition is mainly reflected in key indicators: price, quality, delivery time, after-sales service other aspects, at this stage LED display prices as the main indicator of competition. 74HC595 internal circuit of all four groups of control signals RCK 74HC595, SCK, EN all connected together. 74HC595 control signal and the input and line scan 4 groups of serial shift register control signals A, B, C, D constituting the input of the LED module board; after 74HC595 control signal by the driver and four sets of serial shift register output and line scan through the drive control signal A, B, C, D constitutes the output of the LED unit board for input cascade a LED unit board. Xiamen led unit board | Gao Jin photovoltaic (certified) | led unit board provided by Jinan Optoelectronics Technology Co., Ltd. Gao Jin. Jinan Gao Jin Optoelectronics Technology Co., Ltd. (www.zhkyled.com) is an industry leader in Jinan, Shandong, liquid crystal devices, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Gao Jin photoelectric leadership with the staff warmly welcome all inquiries negotiations to create high gold Photoelectric better future.