6773 PPI GaN-Based Blue Micro-LED Displays Fabricated by Monolithic Integration Technology
This study employs monolithic integration technology to fabricate Micro-LED display devices, which present a 0.12-inch, 640×480 blue active-matrix display with an ultra-high pixel density of 6773 pixels per inch (PPI), featuring a pixel size of 1.80 μm and a pixel pitch of 3.75 μm. The paper provides a detailed discussion of the fabrication process and the unique design approach used. Our Micro-LED display exhibits a luminance uniformity of 76.00% at 2 A/cm² and achieves a maximum brightness of 18,720 nits at 3 A/cm² under full-load conditions. These results demonstrate the tremendous potential of Micro-LED technology for high-resolution near-eye display applications.
Authors
- Lan Xun (ORCID: https://orcid.org/0000-0001-6329-5537)
- Hongsheng Zhang (ORCID: https://orcid.org/0000-0003-1636-8208)
- Zheng Qin (ORCID: https://orcid.org/0000-0003-0877-3887)
- Lei Xu (ORCID: https://orcid.org/0000-0003-2566-2118)
- Kaiyi Wu (ORCID: https://orcid.org/0000-0001-7141-7389)
- Guangchao Dai
- Qi Wang (ORCID: https://orcid.org/0000-0001-8253-8776)
- Xiaofeng Chen
- Xin Zheng (ORCID: https://orcid.org/0000-0002-7073-7329)
- Liang Tian
- Yi Huang (ORCID: https://orcid.org/0000-0002-2924-2324)
- Xianjing Zhou (ORCID: https://orcid.org/0000-0002-0137-7921)
- Yongzhou Zhao (ORCID: https://orcid.org/0000-0003-1260-4402)
- Tian Tang (ORCID: https://orcid.org/0009-0007-7483-5376)
- Feifan Ma
- Yongxing Liu
Institutions
- Chongqing University of Posts and Telecommunications (CN)
- Nanjing University of Science and Technology (CN)
- Konka (China) (CN)
- San’an Optoelectronics (China) (CN)
Publication Details
- Journal
- IEEE Electron Device Letters
- Published
- 2025-06-30
- DOI
- https://doi.org/10.1109/led.2025.3584085
- Citations
- 2
- Primary Topic
- GaN-based semiconductor devices and materials
- Type
- article
- Field-Weighted Citation Impact
- 2.52
Funders
- National Natural Science Foundation of China