4 ms·

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 m

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 3y ago
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 3y ago
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.
- vladvasiliu 3y ago
  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.
- fyrn_ 3y ago
  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_e.png https://upload.wikimedia.org/wikipedia/commons/f/f3/Subpixel... https://en.wikipedia.org/wiki/Subpixel_rendering https://en.wikipedia.org/wiki/Subpixel_rendering

CoastalCoder 3y ago

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 3y ago

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.

vladvasiliu 3y ago
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.
fyrn_ 3y ago
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_e.png https://upload.wikimedia.org/wikipedia/commons/f/f3/Subpixel... https://en.wikipedia.org/wiki/Subpixel_rendering https://en.wikipedia.org/wiki/Subpixel_rendering