350ppi OLED displays coming

[afv011]

... if we're to believe a report from Korea that Samsung has perfected their FMM (Fine Metal Mask) production techniques to produce OLED displays at up to 350 ppi.

Source

[SeaKing]

These displays are moving beyond the unaided eye.

[afv011]

Originally Posted by SeaKing

These displays are moving beyond the unaided eye.

Well, I read somewhere that 300ppi (what Apple call "retina") is actually not high enough for the pixels to be indistinguishable to the human eye at the distance a phone is held. But I agree that for most purposes, it is more than enough.

[HarryT]

Originally Posted by afv011

Well, I read somewhere that 300ppi (what Apple call "retina") is actually not high enough for the pixels to be indistinguishable to the human eye at the distance a phone is held. But I agree that for most purposes, it is more than enough.

I certainly can't detect any trace of the individual pixels on my iPhone 4, no matter how close to my eye that I hold it.

[frostschutz]

Originally Posted by SeaKing

These displays are moving beyond the unaided eye.

The unaided eye can see quite a lot, actually. If you can make out individual pixels (as squares) that's really really bad; but you can still see a difference in image quality as a whole well past the point of making out pixels.

Printers demonstrate this fine; there's an obvious difference depending on the DPI you choose even in the >1000 DPI range. OK, both paper and printers are unreliable (but so is E-Ink to some degree) but there is certainly a visible difference in quality of an image, for higher DPI values which displays are still far from reaching.

Still, that doesn't mean there should be 1000dpi displays. 350 certainly sounds nice, 100 is a bit low in any case. On the other hand, we're used to pixels by now and lots of code and web pages still work with pixels rather than more suitable units.

[miguel1626]

Originally Posted by afv011

Well, I read somewhere that 300ppi (what Apple call "retina") is actually not high enough for the pixels to be indistinguishable to the human eye at the distance a phone is held. But I agree that for most purposes, it is more than enough.

Technically it is not indistinguishable, but others have argued that for all practical purposes most eyes cannot resolve individual pixels:

Let me make this clear: if you have perfect eyesight, then at one foot away the iPhone 4′s pixels are resolved. The picture will look pixellated. If you have average eyesight, the picture will look just fine.

So in a sense, both Jobs and Soneira are correct. At the very worst, you could claim Jobs exaggerated; his claim is not true if you have perfect vision. But for a lot of people, I would even say most people, you’ll never tell the difference. And if you hold the phone a few inches farther away it’ll look better.

[afv011]

Originally Posted by miguel1626

Technically it is not indistinguishable, but others have argued that for all practical purposes most eyes cannot resolve individual pixels:

Thanks, that's the info I read. Basically we agree, it is not true retina in the sense that the eye can still distinguish the pixels, but it is good enough.

[HarryT]

Originally Posted by afv011

Thanks, that's the info I read. Basically we agree, it is not true retina in the sense that the eye can still distinguish the pixels, but it is good enough.

Some people must have eyesight that's a heck of a lot better than mine, in that case .

[fjtorres]

Originally Posted by HarryT

Some people must have eyesight that's a heck of a lot better than mine, in that case .

Professional baseball players run 20-12.
http://www.providencejournal.com/spo...ont-cut-it.ece

Not me, though.

[Kumabjorn]

Originally Posted by HarryT

I certainly can't detect any trace of the individual pixels on my iPhone 4, no matter how close to my eye that I hold it.

That is because you are probably moving in to the realm of farsightedness

[=X=]

Originally Posted by Kumabjorn

That is because you are probably moving in to the realm of farsightedness

Ouch you set yourself up vote that one Harry

[HarryT]

Originally Posted by Kumabjorn

That is because you are probably moving in to the realm of farsightedness

No, I'm (very) shortsighted, which means that I can see things very close to my eyes extremely well - much better than people with normal vision.

[Kumabjorn]

Originally Posted by HarryT

No, I'm (very) shortsighted, which means that I can see things very close to my eyes extremely well - much better than people with normal vision.

Ohh, ok.
But shouldn't you be able to see individual pixels in a Retina display then?
Not that it is something that worries me, I can't see individual pixels on standard WXGA screens. I'd probably need a microscope to see individual pixels on a Retina display.

[SeaKing]

Originally Posted by fjtorres

Professional baseball players run 20-12.
http://www.providencejournal.com/spo...ont-cut-it.ece

Not me, though.

My vision when I was flight training was 20/10. Lately I think it is closer to 20/15 but my close vision is no where near as good.
I actually have a 20 ft and a 10 ft Snellen chart where I give flying lessons, and the 20 foot goes to 20/15. I personally check my students vision and will check it again if they get a different pair of glasses or get new lazing. The trick to prevent memorization is to use a piece of cardboard with a hole in it for the individual letter. (I ran into fudging a few times.)

When I was in grammar school, and they used the E chart because you might not know your letters, I was 20/5 and a very proud little camper because they said I had the best vision in the school. As I understand it, it has to do with the density of the cones on your retina when you get below 20/20. The eye's optics will get you to the 20/20 but for better resolution, you need a greater than normal density. People like that will see the little pixels better.

In the old days, vision determined who could be a pilot, but now days you can have laser surgery. In fact the service will pay for it. They say the pilots are smarter these days because the people that used to wear glasses can now get lazed and fly. They vary the technique for the jet jockeys because of the G force that can occur.

A young child has wonderful vision and hearing. It just gets worse usually as we get older except the distant vision which if you are far sighted, usually holds up the best of all the senses.

[grumbles]

The standard resolution on a laser printer (without any enhancement) is 300 dpi. Those with exceptional eyesight might be able to pick out individual pixels at this resolution but the rest of us will not. I would love to have a reader with a 300 dpi screen. The closest I can get is with a Sony 350 which is about 200 dpi.

You can never be too rich, too skinny or have too high a resolution.