Simplifying the manufacture and design of optical systems for AR glasses with DynamicPixelTuning® microLED technology

Kunal Kashyap; Ellie Galanis; Tongtong Zhu

doi:10.1117/12.2647704

16 March 2023 Simplifying the manufacture and design of optical systems for AR glasses with DynamicPixelTuning® microLED technology

Kunal Kashyap, Ellie Galanis, Tongtong Zhu

Author Affiliations +

Proceedings Volume 12449, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) IV; 124490M (2023) https://doi.org/10.1117/12.2647704
Event: SPIE AR | VR | MR, 2023, San Francisco, California, United States

Abstract

Porotech is delivering novel microLED display technology using its porous gallium nitride (PoroGaN®) platform technology in combination with complimentary epitaxial design. This has enabled blue, green and (most critically) red emission from the same InGaN material platform, delivering monochrome displays with very low wavelength shift (<10nm for blue, <2nm for green and <30nm for red). Further still, Porotech have used the same approach to deliver microLEDs with deliberately high wavelength shift (<150nm), allowing the wavelength emission of individual LED emitters to be tuned. This DynamicPixelTuning® technology enables all colors from red to blue to be emitted from identical pixels/emitters on the same wafer, removing significant roadblocks to full color display manufacture - particularly in the case of microdisplays for AR/MR applications. In terms of the display engine and system level design the technology can be exploited further by simplifying the driving, light extraction, waveguide design etc… since only one ‘type’ of pixel needs to be designed for. In general, much greater design freedom can be employed at all stages in the manufacture of the final product in order to meet consumer performance requirements.

Conference Presentation

Citation Download Citation

Kunal Kashyap, Ellie Galanis, and Tongtong Zhu "Simplifying the manufacture and design of optical systems for AR glasses with DynamicPixelTuning® microLED technology", Proc. SPIE 12449, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) IV, 124490M (16 March 2023); https://doi.org/10.1117/12.2647704

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