Twenty years ago, China's electronics industry had a huge anxiety - "lack of core and less screen", in the field of chips and displays, we seriously lagged behind, they are typical of the "stuck neck" industry. Today, however, the chip crisis still exists, and the anxiety of "less screen" has been completely resolved. The credit goes to a few Chinese companies, namely Tianma Microelectronics, BOE and Huaxing Optoelectronics. The factory that produces the display screen mustbeadustfree factory, and its cleanliness requirements reach the highest level in the industrial field, even higher than the cleanliness standards of the hospital ICU ward. In this context, we have the honor to follow the perspective of teacher Wu Xiaobo and go deep inside Tianma Factory to explore its secrets and feel its advanced production technology and strict environmental