In recent years, Mini LED has ushered in the large-scale development of commercialization. At present, Mini LED has achieved certain results in the four major fields of TV, automobile, terminal display and VR. Statistics show that in 2021, the global Mini LED backlight TV shipment scale will be 1.8 million units, and it is expected to reach 9 million units in 2025, with a market penetration rate of 4%. It can be found not only in the high-end TV market, but also in the low-end TV market. Thanks to the active deployment of industrial chain manufacturers such as DSBJ, Nationstar and other manufacturers, the Mini LED backlight has gradually entered the market, giving LCD displays a second soaring development. However, the focus of this article is not the Mini LED backlight technology, but another main track for the development of Mini LED – Mini LED direct display technology.