A three-dimensional (3D) display provides an immersive user experience and represents the frontier of display technology. The 3D display based on polarizer films is relatively mature. However, the currently used polarizer films lead to bulk systems and low efficiency. Micro-light-emitting diodes (micro-LEDs) have the advantages of small size, high contrast, low power consumption, and high response frequency. The 3D micro-LED displays combine the characteristics of 3D display and the advantages of micro-LEDs simultaneously, which can be used in portable electronics or micro-LED projectors and provides users with 3D experience. Here, linearly polarized (LP) micro-LEDs with varied chip diameters are numerically and experimentally investigated. Subwavelength metal gratings are integrated directly on the p-GaN of micro-LEDs. A maximum extinction ratio of 14.17 dB and a corresponding energy loss of 50% are achieved directly from LP micro-LEDs under the injection current density of 200 A/cm2. The size-dependent effect of LP micro-LED is also investigated and it is found that smaller sized LP micro-LEDs have smaller extinction ratio due to sidewall light leakage. The reported GaN-based LP micro-LEDs have excellent potential to be utilized in 3D micro-LED displays.
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13 March 2023
Research Article|
March 15 2023
Linearly polarized light emission from GaN micro-LEDs for 3D display
Jinpeng Huang
;
Jinpeng Huang
(Writing – original draft, Writing – review & editing)
1
State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University
, Changsha, Hunan 410083, China
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Yi Xu;
Yi Xu
(Data curation)
1
State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University
, Changsha, Hunan 410083, China
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Binru Zhou
;
Binru Zhou
(Data curation)
2
Semiconductor Lighting Technology Research and Development Center, Institute of Semiconductors, Chinese Academy of Sciences
, Beijing 100083, China
3
College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences
, Beijing 101408, China
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Huming Zhan;
Huming Zhan
(Data curation)
1
State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University
, Changsha, Hunan 410083, China
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Peng Cao;
Peng Cao
(Data curation)
1
State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University
, Changsha, Hunan 410083, China
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Junxi Wang;
Junxi Wang
(Resources)
2
Semiconductor Lighting Technology Research and Development Center, Institute of Semiconductors, Chinese Academy of Sciences
, Beijing 100083, China
3
College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences
, Beijing 101408, China
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Jinmin Li
;
Jinmin Li
(Resources)
2
Semiconductor Lighting Technology Research and Development Center, Institute of Semiconductors, Chinese Academy of Sciences
, Beijing 100083, China
3
College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences
, Beijing 101408, China
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Xiaoyan Yi;
Xiaoyan Yi
a)
(Resources)
2
Semiconductor Lighting Technology Research and Development Center, Institute of Semiconductors, Chinese Academy of Sciences
, Beijing 100083, China
3
College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences
, Beijing 101408, China
a)Authors to whom correspondence should be addressed: spring@semi.ac.cn; anlian.pan@hnu.edu.cn; and liancheng_wang@csu.edu.cn
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Anlian Pan
;
Anlian Pan
a)
(Resources)
4
College of Materials Science and Engineering, Hunan University
, Changsha 410082, China
a)Authors to whom correspondence should be addressed: spring@semi.ac.cn; anlian.pan@hnu.edu.cn; and liancheng_wang@csu.edu.cn
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Liancheng Wang
Liancheng Wang
a)
(Funding acquisition)
1
State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University
, Changsha, Hunan 410083, China
a)Authors to whom correspondence should be addressed: spring@semi.ac.cn; anlian.pan@hnu.edu.cn; and liancheng_wang@csu.edu.cn
Search for other works by this author on:
a)Authors to whom correspondence should be addressed: spring@semi.ac.cn; anlian.pan@hnu.edu.cn; and liancheng_wang@csu.edu.cn
Appl. Phys. Lett. 122, 111107 (2023)
Article history
Received:
December 07 2022
Accepted:
March 03 2023
Citation
Jinpeng Huang, Yi Xu, Binru Zhou, Huming Zhan, Peng Cao, Junxi Wang, Jinmin Li, Xiaoyan Yi, Anlian Pan, Liancheng Wang; Linearly polarized light emission from GaN micro-LEDs for 3D display. Appl. Phys. Lett. 13 March 2023; 122 (11): 111107. https://doi.org/10.1063/5.0137993
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