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by numpad0 1389 days ago
A 20/20 or 1.0 visual acuity equals 1MOA(1/60deg).

A 20/20 equivalent 360 degrees panorama image is has a size of 21600x10800px minimum. For a VR headset with 120x120 degrees H/VFOV(178deg diagonally), you need a 7200x7200px panel. 2 x 7200px x 7200px x 24bpp x 144Hz = 360Gbps, or worth 4x 100GE LAG’d, or one PCIe 4.0 x23 link, or one DDR5 channel.

That’s a bit hard to put onto a face cheaply…

3 comments

Our retina only needs ~8 megapixels - the same number of pixels as 4K/UHD (3840x2160 is 8,294,400 pixels).

High pixel density is only required at the middle of where our gaze is - the surrounding can be highly compressed because our eyes are not very sensitive. No pixels are required where our blind spot is, and our colour and light level sensitivities varies from fovea outwards, so there are other compression possibilities too.

If the display can "move" with your eyes (high pixel density only for fovea e.g. contact lens) then the display also only needs a limited number of pixels.

https://www.picturecorrect.com/what-is-the-resolution-of-the...

But the portion of the visual field that actually has good resolution is very tiny, so if you can get good eye tracking built in, you can cheat.
Could be done with fiber. I wonder if fixed pipeline optical processing could be used to transform the signal straight to display.