Microfluidics-based quantum dot color conversion layers for full-color micro-LED display
Yang Li, Tao Jin, Qiang Wang, Yongzhou Zhao, Yifang Sun, Panyuan Li, Jinguang Lv, Yuxin Qin, Weibiao Wang, Qinghui Zeng, Jingqiu Liang
Abstract
In this study, quantum dot color conversion layers (QDCCLs) for full-color micro-LED display were successfully fabricated using microfluidics to conduct red and green perovskite quantum dots to the position of the pixel array. The QDCCL with full-color pixel size of 200 × 200 μm and sub-pixel size of 140 × 50 μm was achieved. Perovskite quantum dots with high quantum yield and narrow full width at half-maximum were used to achieve a wide color gamut, which was 131% of National Television Systems Committee standard. The proposed microfluidics-based QDCCL featured easy fabrication, low cost, high performance, and good integration prospects.