Realizing Low Optical Crosstalk, Wide Color Gamut Mini-LED Displays via Laser-Patterned Quantum Dots Color Conversion Layer

Laser patterning of quantum dots color conversion (QDCC) layer has proven technically feasible to be implemented in full-color mini/micro-LED displays. However, the laser-patterned QDCC layer is still facing the challenges of optical crosstalk and unsaturated excited colors. In this paper, we report on the improved design and fabrication process of QDCC layer to achieve low optical crosstalk, wide color gamut mini-LED display. A prototype demonstration of mini-LED display combining the laser-patterned QDCC layer and blue mini-LED backlight array is presented.