COB technology is considered to be the next generation of Outdoor led display packaging technology, and it has made a qualitative leap in terms of performance and pitch. Although COB technology has strong technical advantages, due to cost issues, COB products are currently only oriented to the mid-to-high-end commercial display market, and have not reached a high market penetration rate. Going back a few years, the market share of COB is even Less than 10%. From the relevant research and development of some enterprises in COB technology, it can be seen that the flip-ch...