3 ms·
> Given the nature of the Android ecosystem, I think we can be pretty sure that if it turns out that Apple bet right and the extra resolution is a good selling
by czhiddy 16y ago
> Given the nature of the Android ecosystem, I think we can be pretty sure that if it turns out that Apple bet right and the extra resolution is a good selling point, we’ll be in an amusing arms race around DPI PDQ.
Once you surpass the limits of human vision, where individual pixels can't be resolved at 12-24" distances (whether this is 300dpi or 400dpi, or whatever), there simply is no benefit to going higher. There are significant costs to increasing DPI, such as memory + GPU bandwidth. The hardware/manufacturing limitations are probably costly as well (does _anyone_ manufacture displays in volume with > 350 dpi?)
- abeppu 16y agoJust to be explicit about it, 20/20 vision corresponds to visual acuity that can distinguish features subtending 1 minute of arc. The angle subtended by a pixel at 326 ppi is arcsine( (1 inch /326) / 12 inches) = 0.87 minutes. http://en.wikipedia.org/wiki/Snellen_chart#.2220.2F20.22_.28or_.226.2F6.22.29_vision http://en.wikipedia.org/wiki/Snellen_chart#.2220.2F20.22_.28... But I think the psychophysics get more complicated when you throw in time and movement.