We discuss state of the art microLED performance for AR and direct view display applications, including a detailed comparison of both InGaN and AlInGaP material systems at various sizes from <2micron to >10micron pixels. In particular, we detail our most recent results on efficiency, gamut coverage, and reliability. We also quantify how sidewall passivation can lead to high IQE for 2 micron scale devices. Further we describe early results for a polychromatic LED demonstration that represents a possible breakthrough display technology.
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Moran et al. (2024) studied this question.
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