Proceedings of the International Display Workshops Volume 31 (IDW '24)
Dec 4 - Dec 6, 2024Sapporo Convention Center
Proceedings of the International Display Workshops Volume 31 (IDW '24)
Dec 4 - Dec 6, 2024Sapporo Convention Center
[MEET2-3(Invited)]Investigation of Red Micro-LED Efficiency Improvement by Various Passivations
Mengyuan Zhanghu1, Byung-Ryool Hyun1, Ke Zhang2, *Zhaojun Liu1,2(1. Southern University of Science and Technology (China), 2. Sitan Semiconductor International Co. Limited (Hong Kong))
Keywords:
Micro-LED,Red Emission,Passivation
High-efficiency red Micro-LEDs are crucial components for full-color Micro-LED displays. In this study, we systematically investigate the efficiency and performance of red AlGaInP Micro-LEDs with varying sizes and dielectric passivation layers fabricated using PECVD, ALD, and sol-gel methods. Additionally, we successfully demonstrate 0.18-inch monochrome red displays featuring AlGaInP Micro-LEDs with a chip size of 9.5 µm and a pixel pitch of 12.5 µm.