Transfer Process of Micro-LED Using Laser

Micro-LED display technology has the potential to become the next generation of display technology due to its advantages such as high brightness and self-illumination. Currently, micro-LED display technology still faces several important issues, including full color display and integration. In order to realize the display function, the micro-LED needs to be integrated into the drive circuit, which can be achieved through monolithic integration and massive transfer. Laser plays an important role in micro- LED transfer technology. In this work, laser is used to peel off the sapphire substrate, allowing an array of individual micro-LED devices to be transferred onto the blue film.