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Full-color single-waveguide near-eye displays
for AR glasses and MR headsets
Co-Founder, CEO Antti Sunnari
World's thinnest
high performance
full-color displays
for near-eye
augmented reality.
Everyone’s daydream
§ Eyeglasses form factor
§ Unlimited battery life
§ 120-degree FOV
§ Sensor fusion
Different use cases – different display concepts
Source of image: North Source of image: Microsoft
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)
Waveguide principles
Waveguide principles
EPE
Pupil replication direction
Pupil replication
directionOut-coupler
In-coupler
Pushing field of view
§ Surface relief gratings
§ Single layer
§ Full color operation
§ Nanoreplication
Dispelix diffractive waveguide displays
§ Cost
§ Form factor
§ Image quality
§ Volume compatibility
A single layer – why?
Cost – wafer utilization and yield
66% 76% 87%
*Assuming 98% production yield in each process step for one layer
Form factor – display thickness
3.1mm 2.2 mm 1.3 mm
*Waveguide 800μm, protective glass 400μm, air gap 100μm
Volume compatibility – less is more
0.33M 0.5M 1M
*Assuming 1M annual waveguide production capacity and 100% yield
Image quality – MTF challenge
@16lp/deg
Waveguide design
§ Proprietary software
§ Parallel computing
§ 40 000 cores
Model vs. measurement: DPX 30° EV1 build
Image taken by iPhone
White appearance over the eyebox (16x12mm)
§ Mastering
§ Fabrication
§ Characterization
In-house R&D fabrication
Mass production
§ Dedicated teams
§ Proven supply chain
§ High volume capacity
The DPX 30° near-eye waveguide display
The world’s thinnest – 1.3 mm in total
World record MTF
Mass manufacturable
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
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
Live demo @ booth #712
Thank you.

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Antti Sunnari (Dispelix Ltd): Full-color, single-waveguide near-eye displays for AR glasses and MR headsets