 Inorganic light emitting diode, LED, displays are considered promising for next generation display technologies due to their high efficiency, long lifespan, and potential for miniaturization. Miniaturized LED chips have already been commercialized for backlight sources in consumer electronics applications, while micro-LEDs with chip sizes less than 100 microns remain in the laboratory. The full color solution is introduced in detail, along with its three main components, red, green, and blue chips, color conversion, and optical lens synthesis. This review provides a comprehensive overview of contemporary technologies and inorganic and miniaturized LED displays for the display community. This article was authored by Tingzhu Wu, Qin Weishu, Yulin, and others.