QD downconverted µLED devices

Benjamin D. Mangum

doi:10.1117/12.3004213

13 March 2024 QD downconverted μLED devices

Benjamin D. Mangum

Proceedings Volume PC12906, Light-Emitting Devices, Materials, and Applications XXVIII; PC1290602 (2024) https://doi.org/10.1117/12.3004213
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

µLED devices are being designed for more and more applications due to a long list of promised display improvements including improved resolution, higher brightness, improved energy efficiency, high contrast ratio and more. Some technologies can employ direct emitters, which would have several advantages, however, there are certain circumstances where downconverted µLED solutions are beneficial. The advantages of color conversion from direct blue emission to green and red light become more pronounced as the dimensions of µLEDs continues to diminish to 10 µm and below. In particular, at these small length scales, few options for downconverters exist. However, colloidal Quantum Dots (QDs) are prime candidates for this task due to their small size and strong absorption properties. We outline the absorption, emission, and stability requirements for quantum dot materials placed in on-chip downconverter µLED systems.

Conference Presentation

Citation Download Citation

Benjamin D. Mangum "QD downconverted μLED devices", Proc. SPIE PC12906, Light-Emitting Devices, Materials, and Applications XXVIII, PC1290602 (13 March 2024); https://doi.org/10.1117/12.3004213

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