Quote:
Originally Posted by sydmalicious
Will We See 500 or 600 PPI e-Paper Displays in 2019 or 2020?
I don’t know if it is necessary but the commenters suggested that it is contrast that needs to improve not the resolution. A guy in the comments argued you can’t really discern the difference in resolution from 300 ppi to 600 ppi as the human eye isn’t capable of seeing those details. Perhaps, but I have the iPhone XS Max and latest iPad Pro and it seems much of those displays are noticeably crisper than my 1st gen iPad Pro and iPhone 8 Plus.
What do you think?
Sent from my iPad using Tapatalk
|
Image quality is the result of a combination of factors, only one of them is pixel density.
All generations of the iPad Pros have exactly the same DPI (264). The 12.9” models all have the same pixel resolution (2732x2048). The smaller iPad Pros have had progressively larger screens (9.7>10.5>11) and thus progressively larger pixel resolutions. If the newer ones are crisper, it is not because of having higher pixel density; probably it is color gamut has improved or something like that.
In the case of iPhone 8 Plus vs iPhone XS Max, the pixel density has gone modestly up (from 401 to 458) but the main difference is that the former is LCD+IPS whereas the latter is OLED. OLED gives 1,000,000:1 contrast ratio (because it has ‘true black’ pixels) whereas LCD is ‘only’ 1300:1 (black pixels still emit light). Both phones are calibrated to the same maximum brightness (625 cd/m2).
I read with black theme so OLED difference is pretty noticeable, and at least theoretically photos and video will look a little better (though that matters less to me).
Slap a 300 DPI OLED screen on my Kindle and I will be happy!
Seriously, 600 dpi eInk does not interest me at all.