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使用面选择性介电泳组件开发用于下一代无机显示器的鳍式发光二极管。

Development of fin-LEDs for next-generation inorganic displays using face-selective dielectrophoretic assembly.

作者信息

Lee SeungJe, Eo Yun Jae, Ko Minji, Ahn Soomin, Yun Selim, Kim Hyeng Jin, Hong Eunha, Kwon Yuna, Kang Huiyeong, Lee Yong Jae, Yoo Gang Yeol, Lee Keyong Nam, Song Jae Kyu, Kim Jong Kyu, Cho Hyun Min, Do Young Rag

机构信息

Department of Chemistry, Kookmin University, Seoul, Republic of Korea.

Display Research Center, Korea Electronics Technology Institute, Gyeonggi-do, Republic of Korea.

出版信息

Nat Commun. 2024 Nov 4;15(1):9536. doi: 10.1038/s41467-024-53965-0.

DOI:10.1038/s41467-024-53965-0
PMID:39496658
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11535221/
Abstract

Micro-light-emitting diodes offer vibrant colors and energy-efficient performance, holding promise for next-generation inorganic displays. However, their widespread adoption requires the development of cost-effective chips and low-defect pixelation processes. Addressing these challenges, nanorod-light-emitting diodes utilize inkjet and dielectrophoretic assembly techniques. Nevertheless, the small volume and edge-directed emission of nanorod-light-emitting diodes necessitate brightness and light extraction improvements. As an alternative, we propose dielectrophoretic-friendly fin-light-emitting diodes, designed to enhance brightness and light extraction efficiency through face-selective dielectrophoretic assembly technology. Our results confirm the potential for next-generation inorganic displays, with a wafer utilization ratio exceeding 90%, a vertical assembly ratio of 91.3%, and a pixel production yield of 99.93%. Moreover, blue fin-light-emitting diodes achieve an external quantum efficiency of 9.1% and a brightness of 8640 cd m at 5.0 V, which, even at this early stage, are comparable to existing technologies.

摘要

微发光二极管能呈现鲜艳的色彩且具备高能效性能，有望用于下一代无机显示器。然而，其广泛应用需要开发具有成本效益的芯片和低缺陷像素化工艺。为应对这些挑战，纳米棒发光二极管采用了喷墨和介电泳组装技术。尽管如此，纳米棒发光二极管的小体积和边缘定向发射特性仍需要提高亮度和光提取效率。作为一种替代方案，我们提出了介电泳友好型鳍式发光二极管，旨在通过面选择性介电泳组装技术提高亮度和光提取效率。我们的结果证实了其用于下一代无机显示器的潜力，晶圆利用率超过90%，垂直组装率为91.3%，像素生产良率为99.93%。此外，蓝色鳍式发光二极管在5.0 V时实现了9.1%的外量子效率和8640 cd m的亮度，即使在现阶段，也与现有技术相当。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/0cbe5b54b5ba/41467_2024_53965_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/7fb0d5f0c568/41467_2024_53965_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/5db0a60b5c7d/41467_2024_53965_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/3cea7576a1ae/41467_2024_53965_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/d05917359dfd/41467_2024_53965_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/731e95c46a80/41467_2024_53965_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/0cbe5b54b5ba/41467_2024_53965_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/7fb0d5f0c568/41467_2024_53965_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/5db0a60b5c7d/41467_2024_53965_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/3cea7576a1ae/41467_2024_53965_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/d05917359dfd/41467_2024_53965_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/731e95c46a80/41467_2024_53965_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1604/11535221/0cbe5b54b5ba/41467_2024_53965_Fig6_HTML.jpg

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本文引用的文献

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Integration Technology of Micro-LED for Next-Generation Display.用于下一代显示器的微发光二极管集成技术
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