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Antti Sunnari (Dispelix Ltd): Full-color, single-waveguide near-eye displays for AR glasses and MR headsets
- 1. Full-color single-waveguide near-eye displays for AR glasses and MR headsets Co-Founder, CEO Antti Sunnari
- 2. World's thinnest high performance full-color displays for near-eye augmented reality.
- 3. Everyone’s daydream § Eyeglasses form factor § Unlimited battery life § 120-degree FOV § Sensor fusion
- 4. Different use cases – different display concepts Source of image: North Source of image: Microsoft
- 5. Why waveguide? Aesthetic constraint Mechanical stability constraint Design space for smart glasses Eye box size Thicknessofcombiner Waveguide w EPE Full IPD coverage Min IPD coverage Source of image: Bernard Kress, Ehsan Saeedi, Vincent Brac-de-la-Perriere, "The segmentation of the HMD market: optics for smart glasses, smart eyewear, AR and VR headsets," Proc. SPIE 9202, Photonics Applications for Aviation, Aerospace, Commercial, and Harsh Environments V, 92020D (5 September 2014)
- 7. Waveguide principles EPE Pupil replication direction Pupil replication directionOut-coupler In-coupler
- 8. Pushing field of view
- 9. § Surface relief gratings § Single layer § Full color operation § Nanoreplication Dispelix diffractive waveguide displays
- 10. § Cost § Form factor § Image quality § Volume compatibility A single layer – why?
- 11. Cost – wafer utilization and yield 66% 76% 87% *Assuming 98% production yield in each process step for one layer
- 12. Form factor – display thickness 3.1mm 2.2 mm 1.3 mm *Waveguide 800μm, protective glass 400μm, air gap 100μm
- 13. Volume compatibility – less is more 0.33M 0.5M 1M *Assuming 1M annual waveguide production capacity and 100% yield
- 14. Image quality – MTF challenge @16lp/deg
- 15. Waveguide design § Proprietary software § Parallel computing § 40 000 cores
- 16. Model vs. measurement: DPX 30° EV1 build Image taken by iPhone White appearance over the eyebox (16x12mm)
- 17. § Mastering § Fabrication § Characterization In-house R&D fabrication
- 18. Mass production § Dedicated teams § Proven supply chain § High volume capacity
- 19. The DPX 30° near-eye waveguide display The world’s thinnest – 1.3 mm in total World record MTF Mass manufacturable
- 20. The DPX 30° near-eye waveguide display 30° Field of view 16:9 Aspect ratio 20 mm Eye relief 16x12 mm Eye box 200 nit/lm Efficiency 15 lp/deg MTF 82 % Transmittance 1:60 Contrast
- 21. Diffractive waveguide displays are product-ready § Display form factor enables appealing consumer products § Image quality enables professional and consumer use § Diffractive waveguide displays can be manufactures for mass market products § To open the market, ultra-small high performance projectors are needed
- 22. Live demo @ booth #712 Thank you.