Semipolar micro-LED for full-color display and visible light communication

Wansheng Lin, Yu Ming Huang, James Singh Konthoujam, Yue Lin, Yijun Lu, Zhong Chen, Tingzhu Wu*, Hao Chung Kuo


研究成果: Conference article同行評審


Micro-LEDs (μ-LEDs) are well known to have a thriving future in the next-generation display field. However, conventional μ-LEDs grown on c-plane GaN have a severe wavelength shift due to the quantum confined Stark effect (QCSE), which seriously affects the color quality of μ-LEDs display. In order to fundamentally solve this problem, we grown blue μ-LED with a 30 μm diameter on the (20-21) semipolar GaN combined with perovskite quantum dots (PQDs) color conversion layer, to achieve high-quality full-color μ-LED, realizing a wide color gamut with 99.2% National Television Standards Committee (NTSC) space and 93.0% Rec. 2020 in the CIE 1931, and the peak wavelength hardly shifts, indicating an excellent inhibitory on QCSE. Meanwhile, the semipolar blue μ-LED excitation light can achieve a wide 3-dB bandwidth of 652 MHz due to the faster carrier recombination rate, making semipolar LEDs more attractive in the high-speed visible light communication (VLC).

頁(從 - 到)239-241
期刊Digest of Technical Papers - SID International Symposium
出版狀態Published - 8月 2021
事件International Conference on Display Technology, ICDT 2021 - Beijing, China
持續時間: 30 5月 20212 6月 2021


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