Optimized MQW color converters for high-resolution microdisplays with high brightness

A. Ndiaye; A. Ghazouani; R. Sommer; E. Vermande; C. Di Nardo; H. S. Nguyen; C. Seassal; E. Drouard; B. Ben Bakir

doi:10.1117/12.2649819

27 March 2023 Design and manufacturing of compact on-Silicon MQW color-converters using photonic-crystal light-extractors and Bloch-mode replication for μLED applications

A. Ndiaye, A. Ghazouani, R. Sommer, E. Vermande, C. Di Nardo, H. S. Nguyen, C. Seassal, E. Drouard, B. Ben Bakir

Author Affiliations +

Proceedings Volume PC12441, Light-Emitting Devices, Materials, and Applications XXVII; PC124410W (2023) https://doi.org/10.1117/12.2649819
Event: SPIE OPTO, 2023, San Francisco, California, United States

Conference Poster

Abstract

While state-of-the-art RGB microdisplays rely on quantum-dot color-converters (CC), the next generation of very bright and high-resolution AR microdisplays could be based on MQW CC due to their better photostability and higher blue-light absorption. However, their practical implementation is still hindered by their low light extraction efficiency (LEE), their Lambertian-like emission patterns, as well as the challenges related to their integration on on-Silicon blue µLED arrays (transfer and pixelization). In this work, we use photonic-crystals (PhCs) as light extractors and investigate all the challenges related to the design, integration & fabrication as well as testing of novel MQW based CC.

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A. Ndiaye, A. Ghazouani, R. Sommer, E. Vermande, C. Di Nardo, H. S. Nguyen, C. Seassal, E. Drouard, and B. Ben Bakir "Design and manufacturing of compact on-Silicon MQW color-converters using photonic-crystal light-extractors and Bloch-mode replication for μLED applications", Proc. SPIE PC12441, Light-Emitting Devices, Materials, and Applications XXVII, PC124410W (27 March 2023); https://doi.org/10.1117/12.2649819

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