用于实现高清晰度显示的单片GaInN基μLED阵列中杂散光的减少

IF 1.5 4区物理与天体物理 Q3 PHYSICS, APPLIED

Japanese Journal of Applied Physics Pub Date : 2023-09-04 DOI:10.35848/1347-4065/acf69d

Tatsunari Saito, Yuta Imaizumi, K. Kobayashi, Yoshinobu Suehiro, N. Koide, T. Takeuchi, S. Kamiyama, M. Iwaya

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引用次数: 0

摘要

单片GaInN基微μLED阵列有望应用于超高清显示器。在本研究中，研究了它们在蓝宝石衬底上的杂散光行为。结果表明，μLED驱动区外会出现大量强杂散光，这是实现高清晰度显示器的主要障碍。我们还探索了各种有效减少杂散光的技术。使用平坦蓝宝石衬底和去除μLED之间的GaN材料可以有效地减少杂散光，并且对于在单片GaInN基μLED阵列显示器中实现高清晰度至关重要。

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Stray light reduction in monolithic GaInN-based μLED arrays for high-definition display realization

Monolithic GaInN-based micro μLEDs arrays are expected to be applied to ultra-high-definition displays. In this study, stray light behavior of them fabricated on sapphire substrates was investigated. Results reveal that strong stray light appears considerably outside the μLED drive region, which is a major obstacle to the realization of high-definition displays. We also explored various techniques to effectively reduce the stray light. Use of flat sapphire substrates and removal of GaN material between μLEDs are effective in reducing stray light and are essential for achieving high definition in monolithic GaInN-based μLED array displays.

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来源期刊

Japanese Journal of Applied Physics 物理-物理：应用

CiteScore

3.00

自引率

26.70%

发文量

818

审稿时长

3.5 months

期刊介绍： The Japanese Journal of Applied Physics (JJAP) is an international journal for the advancement and dissemination of knowledge in all fields of applied physics. JJAP is a sister journal of the Applied Physics Express (APEX) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP). JJAP publishes articles that significantly contribute to the advancements in the applications of physical principles as well as in the understanding of physics in view of particular applications in mind. Subjects covered by JJAP include the following fields: • Semiconductors, dielectrics, and organic materials • Photonics, quantum electronics, optics, and spectroscopy • Spintronics, superconductivity, and strongly correlated materials • Device physics including quantum information processing • Physics-based circuits and systems • Nanoscale science and technology • Crystal growth, surfaces, interfaces, thin films, and bulk materials • Plasmas, applied atomic and molecular physics, and applied nuclear physics • Device processing, fabrication and measurement technologies, and instrumentation • Cross-disciplinary areas such as bioelectronics/photonics, biosensing, environmental/energy technologies, and MEMS