Journal
PHOTONICS RESEARCH
Volume 11, Issue 6, Pages 925-935Publisher
CHINESE LASER PRESS
DOI: 10.1364/PRJ.484445
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Researchers have developed a color conversion layer (CCL)-based, full-color, highly efficient micro-light emitting diode (mu LED) array to address the challenges of mass transfer yield in mu LED technology. By combining CCL with a color purity enhancement film, they achieved 7 μm x 7 μm subpixel fluorescent arrays with a color gamut of 95.34% in DCI-P3 and an overall 1588 PPI. This study provides a promising technique for fabricating higher pixel density-based next-generation display technology.
Micro-light emitting diodes (mu LEDs) with remarkable advantages are becoming mainstream in next-generation display technologies such as augmented reality/virtual reality displays. However, further development of mu LEDs still faces significant challenges, including mass transfer yield. Here, we report color conversion layer (CCL)-based, fullcolor, highly efficient mu LED arrays as a solution to address this challenging issue. Further amalgamating CCL with color purity enhancement film enables us to realize 7 mu m x 7 mu m subpixel fluorescent arrays with a color gamut of 95.34% in DCI-P3, resulting in an overall 1588 PPI (pixel per inch). Our results provide a promising technique for fabricating higher PPI-based next-generation display technology. (c) 2023 Chinese Laser Press
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