OPTICS & PHOTONICS International Congress 2024

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LEDIA2024 » Oral Presentation

u-LED others

2024年4月25日(木) 09:00 〜 10:30 211+212 (Pacifico Yokohama Conference Center)

09:00 〜 09:15

[LEDIA4-01] Dependence of stray light in monolithic GaInN-based μLED arrays on sapphire substrate thickness

*Naoki Hasegawa1, Tatsunari Saito1, Yoshinobu Suehiro1, Satoshi Kamiyama1, Motoaki Iwaya1, Tetsuya Takeuchi1 (1. Meijo-u University)

Stacked GaInN-based monolithic LED arrays are expected to be applied to AR/VR displays because of their high integration and high brightness.Therefore, it is necessary to take appropriate countermeasures against stray light. In this study, we investigated the dependence of stray light on sapphire substrate thickness. As a result, we confirmed that changing the sapphire substrate film thickness of the elements causes a large difference in stray light patterns.

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