Librem 14 screen resolution polls

[kieran]

@DHS

On a screen of this size, 2560x1440 pixels is of marginal benefit, even for people with exceptional eyesight

This has been discussed extensively in this forum.

See, for example

Compatible monitors

Yes, it is about how far away you are from the screen, that’s why I got the 24" QHD monitor to try. Where I see the pixels are on the diagonals. If I sit straight I am 50cm from my laptop and 60cm from the monitor. Going through the calculations with θ = 2x10⁻⁴ and 5x10⁻⁴ radians from Rayleigh Criterion. I get the following table; 13.3" FHD 43 - 108 cm 23.8" QHD 58 - 146 cm 27.0" QHD 66 - 165 cm 27.0" 4K 44 - 110 cm Below the range you’ll see pixels, between you may see pixels, and above…

Re: librem-5-smartphone-final-specs-announced

That’s not how resolution works. 720p is 1280x720 pixels, so 921,600 total. For a 5.7" screen, each pixel would be just under 0.0039" square. The angular resolution of a circular aperture (e.g. your iris) is given by the Raleigh criterion. The angular resolution required to resolve an individual pixel is 0.0039/d, where d is the distance from your eye to the phone. The page I referenced gives the resolution limit for most people as 5e-4 rad and for completely optimal conditions as 2e-4 rad. So…

basically anything about the Rayleigh Criterion.