gentlefury...
whether a display can be deemed 'retina' or not depends on how far your eyes are from the display.
for things like laptops, desktops, even tablets, you wouldn't need as high PPI, because you're further away from the display.
so the numbers you quoted earlier are much higher resolutions than you'd actually need for it to be 'retina'.
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well said, completely depends on viewing distance.
Where have you seen that the term retina is completely arbitrary? As I see it, it is the panel they are using on the iPhone...nothing more or less. They have even bragged about being 330ppi.
From apples tech specs:
Retina display
3.5-inch (diagonal) widescreen Multi-Touch display
960-by-640-pixel resolution at 326 ppi
800:1 contrast ratio (typical)
500 cd/m2 max brightness (typical)
Fingerprint-resistant oleophobic coating on front and back
Support for display of multiple languages and characters simultaneously
They very specifically identify the ppi! They seem to be calculating it based on the unit size and not the useable screen size, so they are actually coming in lower than they really are....which is odd from a marketing standpoint.
No other display has ever been called Retina display. That is the only one. They have used IPS which is a light switching technology that results in much better color output....but since the iPhone is the only Retina display than that says to me that they are classifying that panel as "retina" therefore their 330ppi display is retina. If they release a larger version with a lower ppi than they would have to re-classify it, since it would technically be a different panel!!
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You keep banging on about 330 PPI. It only has to be 326 (according to Apple) PPI when it's 12" from your face. When it's 3m away, like a TV, it only has to be about 35 PPI for the pixels to be invisible. They're further away, so they appear smaller. The way the panel is made is irrelevant - "retina" just means pixels so small you can't see them, which is predicated on the viewing distance.
Can you please provide a writeup from someone other than you that specifies that? A technical white paper from a company using the technology would be great. Samsung, LG or Apple would do.
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Again, From Apple:
By developing pixels a mere 78 micrometers wide, Apple engineers were able to pack four times the number of pixels into the 3.5-inch (diagonal) screen found on iPhone 4S and iPhone 4. The resulting pixel density — 326 pixels per inch — makes text and graphics look smooth and continuous at any size.
Hmmm, looks like it is all about ppi, not perception.
If they determined that that is the resolution needed to not be able to perceive pixels than why would it matter if the screen is 3.5" or 100".......I can look at my iPhone 4s so close that I can't focus anymore and not see any edge. The icons are no smaller or larger than the icons on my MBA....so why would the ppi change on the MBA version?? It wouldn't. You are speculating based on what you think...not based on facts.