As the hottest topic in the LED industry today, small-pitch LED displays have attracted enough attention in the industry. With the expansion of the small-pitch market, the demand for lamp beads due to its high-density characteristics has proliferated, and more and more packaging companies have introduced smaller-pitch devices. Nowadays, LED packaging industry including Taiwan Yiguang, Hongqi, Japan Nichia, and domestic Mulinsen, Guoxing, Jingtai, Anpuguang and other enterprises have launched their own small pitch products. "At present, small-pitch packaged devices mainly adopt SMD surface mount or COB process. Among them, surface mount package is undoubtedly the mainstream form of the market, accounting for about 60% of the output value of the package market." Dr. Shao Pengrui, technical director of Jingtai Co., mentioned. At the same time, the acceptance of COB packaging in the past two years is getting higher and higher in small-pitch products. It seems that the industry has also set off a wave of “free packagingâ€, including Wei Qiaoshun and Alida. "COB packaging has certain advantages, but at the same time its disadvantages will be more prominent. For example, in terms of contrast, the COB package form is more modular than a single device, and the appearance consistency is not high; the product is not used. In the case, the ink color on the screen surface is inconsistent, which affects the appearance. At the same time, because the production method is different from that of a single device, the production process and the finished product have a low pass rate,†said Ouyang Xiaobo, general manager of National Star RGB Device Division. It is understood that COB package form, how to achieve "COB package + lamp drive unity" has always been a technical difficulty, but it is gratifying that with the technological innovation and breakthrough, the dot spacing of COB devices is getting more and more small. "In the short term, COB packaging will not become mainstream for the time being, but with the advancement of technology, its development potential is still worth looking forward to, and there is also a great possibility that it will become a strong opponent of SMD packaging in the future, and our national star is also Continue to pay attention to the technical development trend in this COB packaging field." Ouyang Xiaobo said. According to the 2015 annual report released by Liard, the company's LED small-pitch performance is brilliant, LED small-pitch also achieves high-speed growth (more than 70% compound growth in three years), and LED small-pitch global market share is more than 50%. Zhouming Technology also mentioned in the performance report that the gross profit margin of the company's small-pitch products reached 43.3% in 2015, and the small-pitch segment entered the outbreak period from the end of 2015. Indeed, with the advancement of LED display package device technology, the miniaturization of packaged devices has become an irreversible trend. As a non-replaceable significant advantage, small-pitch LED has become a powerful driving force for the development of the industry, and this will bring more business opportunities to the future LED packaging market. Solar power system Jiangsu Bosiwei Optoelectronics Group Co.,ltd , https://www.bswledled.com