Laser & Optoelectronics Progress, Volume. 62, Issue 19, 1900005(2025)

Research Progress on Angular Color Shift of Micro-Light-Emitting Diode

Zhihua Wang1, Kaixin Zhang2、***, Qun Yan1、**, and Jie Sun1,3、*
Author Affiliations
  • 1National and Local United Engineering Laboratory of Flat Panel Display Technology, Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou University, Fuzhou 350100, Fujian , China
  • 2Fujian Key Laboratory of Agricultural Information Sensoring Technology, College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian , China
  • 3Quantum Device Physics Laboratory, Chalmers University of Technology, Gothenburg41296, Sweden
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    Micro-light-emitting diode (Micro-LED) has attracted widespread attention in academia and the display industry due to its outstanding performance characteristics, such as high contrast, fast response time, and low power consumption. Angular color shift, which refers to the color differences presented by display devices from different viewing angles, can alter the color gamut and contrast of Micro-LED displays, thereby affecting the user's visual experience. This article aims to analyze the causes and main influencing factors of the angular color shift phenomenon, and comprehensively review the current solutions for alleviating angular color shift, including optimizing device structural parameters, adding black matrix structure, designing reflective structure, and using optical thin film structure. Based on various solutions to alleviate angular color shift, this article looks forward to possible research directions. Further optimization design of black matrix and reflective structure, as well as exploration of optical thin film structure with superior performance, may have higher efficiency and potential in suppressing the angular color shift phenomenon of Micro-LED, and may be a more worthwhile direction for further research.

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    Zhihua Wang, Kaixin Zhang, Qun Yan, Jie Sun. Research Progress on Angular Color Shift of Micro-Light-Emitting Diode[J]. Laser & Optoelectronics Progress, 2025, 62(19): 1900005

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    Paper Information

    Category: Reviews

    Received: Jan. 13, 2025

    Accepted: Feb. 20, 2025

    Published Online: Sep. 26, 2025

    The Author Email: Kaixin Zhang (958185645@qq.com), Qun Yan (qunfyan@fzu.edu.cn), Jie Sun (jie.sun@fzu.edu.cn)

    DOI:10.3788/LOP250497

    CSTR:32186.14.LOP250497

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