Capillary-Assisted Ultrafast and Large-Area Perovskite Nanocrystal Patterning Technology for Color Conversion Micro-LED Displays

single-color PNC CCL is fabricated in about 2 min. Due to rational PNC design and the mild, nondestructive CAP process, the CCLs maintain high photoluminescence quantum yields after 100 days of ambient storage and 4 h of continuous blue-light irradiation. Finally, a 0.7 in. proof-of-concept full-color micro-LED panel, using CAP-fabricated red/green CCLs, exhibits excellent color conversion performance, highlighting its potential for scalable, high-quality PNC patterning in advanced displays.