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Old 01-31-2023, 05:21 PM   #15
CallOfCth'reader
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Quote:
Originally Posted by salamanderjuice View Post
I'm sure this will have 300 PPI, maybe more. But with HMDs you really really need high PPI for the screen door effect not to be visible. An Oculus Quest 2 has over 750 PPI and it still suffers from the screen door effect. It's just too close to your eyeballs.
Screen-door effect is caused by the gaps between pixels, so the effect would not be noticeable at 300PPI if the gaps between the e-ink capsules are small enough.

Looking at this video there would probably be zero screen-door with e-ink, although the magnified e-ink characters might look a little jagged:
https://www.youtube.com/watch?v=7fBsPSlQ51s

My own question is whether all of the screen is in focus. VR headsets have a clear "sweet spot" in the centre of the lenses, and the screen looks progressively blurrier as the distance from the centre of the lens increases. An e-ink headset would have to have perfect clarity over all of the viewable screen to be of any use.
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