 Micro-LED displays are becoming increasingly popular due to their high resolution and low power consumption. To make them more efficient, they must be integrated into larger arrays, which can be done through three different methods, transfer integration, bonding integration, and growth integration. Transfer integration involves attaching individual micro-LEDs onto a larger substrate, while bonding integration involves fusing multiple micro-LEDs together. Growth integration involves growing the micro-LEDs directly onto the substrate. Each method has its own advantages and disadvantages, but all three are being used to create more efficient and powerful micro-LED displays. This article was authored by Ding Wuchen, Yu Changchen, Guang Zeng, and others.