Advances in InGaN-based RGB micro-light-emitting diodes for AR applications: Status and perspective

IF 5.3 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

APL Materials Pub Date : 2024-08-14 DOI:10.1063/5.0222618

Panpan Li, Jacob Ewing, Matthew S. Wong, Yifan Yao, Hongjian Li, Srinivas Gandrothula, Jordan M. Smith, Mike Iza, Shuji Nakamura, Steven P. DenBaars

引用次数: 0

Abstract

Micro-light-emitting diodes (µLEDs) are gathering significant interest as a technology for emerging micro-displays. However, µLEDs encounter numerous obstacles, including size-dependent efficiency loss, poor efficiency of red µLEDs, and challenges associated with the mass transfer and integration of full-color µLEDs. These issues become more acute in ultra-small µLEDs (<5 µm), which were required by the augmented reality (AR) displays. Here, we discuss the principal challenges faced by µLEDs and explore the possible solutions. We highlight recent advances in InGaN-based RGB µLEDs tailored for AR displays. In particular, we discuss the advancements in ultra-small InGaN µLEDs scaled down to 1 µm, the developments in InGaN red µLEDs, and the implementation of tunnel junction-based cascaded InGaN µLEDs for monolithic integration.

查看原文本刊更多论文

用于 AR 应用的基于 InGaN 的 RGB 微型发光二极管的进展：现状与展望

微型发光二极管（µLEDs）作为一种新兴的微型显示器技术，正在引起人们的极大兴趣。然而，µLED 遇到了许多障碍，包括与尺寸有关的效率损失、红色 µLED 的低效率，以及与传质和全彩 µLED 集成有关的挑战。这些问题在超小型 µLED（<5 µm）中变得更加尖锐，而这正是增强现实（AR）显示器所需要的。在此，我们将讨论 µLED 所面临的主要挑战，并探讨可能的解决方案。我们重点介绍了为 AR 显示器量身定制的基于 InGaN 的 RGB µLED 的最新进展。特别是，我们讨论了超小型 InGaN µLED 的进步、InGaN 红光 µLED 的发展以及基于隧道结的级联 InGaN µLED 的单片集成实现。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

APL Materials NANOSCIENCE & NANOTECHNOLOGYMATERIALS SCIE-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

9.60

自引率

3.30%

发文量

199

审稿时长

2 months

期刊介绍： APL Materials features original, experimental research on significant topical issues within the field of materials science. In order to highlight research at the forefront of materials science, emphasis is given to the quality and timeliness of the work. The journal considers theory or calculation when the work is particularly timely and relevant to applications. In addition to regular articles, the journal also publishes Special Topics, which report on cutting-edge areas in materials science, such as Perovskite Solar Cells, 2D Materials, and Beyond Lithium Ion Batteries.