In the practical activities of COB integrated packaging LED display panels, when studying traditional industrial packaging technology and LED display panel industry issues dominated by its packaging technology, we found that "problems" often focus on "brackets and pins" . We have also seriously thought about: Where does the technical advantage obtained by COB integrated packaging come from? The answer we got also comes from the "efforts to remove the bracket pins." Before the emergence of COB integrated packaging technology, it was impossible for the industry to pay attention to the industrial problems caused by brackets and pins. That was because it was impossible to establish a comparison, analysis and critical model of the two technologies, so it could only be proposed from the perspective of preventive technology research. Some passive solutions to pixel failure. COB integrated packaging technology has made active and large-scale "efforts to remove bracket pins", and the results obtained are "revolutionary". So is there still more room for effort and practical value in the bracket-free pin packaging technology? We believe: "Although the bracket is small, it has a lot to say. The research on brackets and pins can make a difference and determine success or failure." Therefore, we would like to use the "with and without" of the "brackets and pins" of packaging devices as a method of dividing packaging system technology. "The "presence" and "removal" of the bracket pins represent two different ideological and theoretical viewpoints. We believe that a technology that can be called a systematic technology must have ideological and theoretical support. This kind of ideological and theoretical support The development direction of the industry plays a leading and decisive role and has lasting influence for decades. From the division, we get "bracket-type independent device packaging system technology", "bracket-free integrated packaging system technology" and their corresponding The "bracket-type independent device packaging 2-board panel integrated manufacturing technology" and the "bracket-free integrated packaging 1-board panel integrated manufacturing technology" led by packaging system technology have their own distinctive packaging system technology and industrial technology characteristics.