“…The most promising technology for augmented-reality glasses, which constitute the fundamental hardware of the metaverse, involves micro-LED displays and diffracted optical waveguides. [1][2][3][4] Compared with LCD and OLED displays, micro-LEDs have the advantages of high brightness, long life, low power consumption, high contrast, and high color saturation. [5][6][7] Yet, how to fabricate high brightness, high pixel per inch (PPI), full-color micro-LEDs remains a challenge.…”