[tlamponi]

Note that with a high enough resolution to enable 2x (or even 4x) scaling, text becomes much crisper as anti-aliasing isn't messing with the actual color that much anymore.

So, a HiDPI display _might_ make things easier to read/view even for people with a worse vision like you.

[CoastalCoder]

Thanks, good point.

I guess any conclusions I draw need to consider more than just the screen's native resolution. The software-based systems for rending fonts, and graphics in general, would also matter.

As would the screen treatment (matte vs. glossy), since AFAIK all matte finishes add a little bit of blur.

[zozbot234]

Anti-aliasing should not be messing with the color at all. It shouldn't even be messing with brightness and contrast all that much; most common artifacts are due to performing anti-aliasing w/ an incorrect gamma for the display. Gamma-correct and pixel-perfect content makes even a low resolution 768p screen quite usable. And a 1080p screen is crisp enough already that individual pixels are not visible when looking at the whole screen. Anything higher than that is pure overkill.

[fyrn_]

Font anti aliasing, or more specifically subpixel rendering absolutely changes color. It of course does so in a way that is ideally not perceptible, but it is there. Here's an example of an e rendered with subpixel rendering close up: https://upload.wikimedia.org/wikipedia/commons/f/f3/Subpixel...

https://en.wikipedia.org/wiki/Subpixel_rendering

[vladvasiliu]

How do you get this gamma-correct antialiasing in practice?

I see this often on business 24" FHD displays. It's especially atrocious with light text on dark backgrounds. Bonus points for the current fashion of super-skinny fonts, which seem to have different colors for every vertical line.