MicroLED has the advantages of low power consumption, high brightness, long service life, etc., and has a bright and considerable market prospect in many fields such as AR/VR and vehicle display in the future. MicroLED has many technical routes. Silicon-based InGaN materials based on nanostructures have many advantages such as high red light efficiency and CMOS integration, which is expected to accelerate the large-scale application of MicroLEDs. In addition, InP-based NIR sensors can also be used in high-tech wearable devices to improve the accuracy of health monitoring (heart rate, blood oxygen concentration).