Slashdot Mirror


For Normals, Jobs' "Retina Display" Claim May Be Fair After All

The Bad Astronomer writes "AT WWDC, Steve Jobs claimed that the iPhone 4's display has about the same resolution as the human eye — held at one foot away, the iPhone 4's pixels are too small to see. After reading an earlier Slashdot post about an expert disputing Jobs' claim, I decided to run the numbers myself. I found that Jobs is correct for people with normal vision, and the expert was using numbers for theoretically perfect vision. So to most people, the iPhone 4 display will look unpixellated."

20 of 386 comments (clear)

  1. So It's catching my droid then? by Skarecrow77 · · Score: 4, Interesting

    i'm holding my droid at 1 foot distance and I can't distinguish any single pixel. I have to get it to about 3-4 inches to do so convincingly.

    Granted, anti-aliased fonts help a ton.

  2. Anti-Aliasing by TheKidWho · · Score: 4, Interesting

    One must not forget about Anti aliasing or the fact that each pixel contains 3 RGB sub pixels. This increases the effect PPI significantly.

  3. retina display by suso · · Score: 4, Insightful

    What bugs me is when a company uses a name for something that doesn't make sense.

    When I hear "retina display" I think what you are talking about is a system that projects an image into my retina.

    1. Re:retina display by localman57 · · Score: 5, Insightful

      Yes. That's what it does. There's a light in the back of the iPhone, followed by an LCD grid, which filters the light, which goes to the lens of your eye, which projects an image on your retina. So it seems like Steve pretty much hit the nail on the head. It's a system that projects an image into your retina.

  4. We can't tell, anyway by A.+B3ttik · · Score: 5, Funny

    Most Slashdotters will never be anywhere close to one foot from a vagina anyway, so it's not like we'll have anything to compare it to when surfing our porn on it.

  5. As long as ... by ryan.onsrc · · Score: 5, Funny

    ... every one turns off their WiFi

  6. Re:Wrong or right by al3 · · Score: 5, Insightful

    Specs might speak to the slashdot crowd, but I think Apple owes a lot of its success to a realizing that most consumers buy benefits, not features. The endless list of would-be iPod/iPhone killers that touted better features but failed to have an impact in the market are evidence of this.

  7. Print Resolution by whisper_jeff · · Score: 5, Insightful

    The only people who are going to look at the screen and think "hey, they said I wouldn't be able to see the pixels but I can!" are people who look at printed magazines and think "wow, when are they going to get rid of all these dots?" The screen has print level resolution and, as a graphic designer, that simply blows my mind. As has been mentioned in that other thread, graphic designers do digital work in 300 dpi for print work and 72 dpi for online work. If this screen technology becomes the new norm, we'll be doing all work at 300 dpi, which is damn, damn, damn impressive to look at. At that point, the technology bottleneck will be the pipes (a 72 dpi image is quite a bit smaller than a 300 dpi image, after all...). I do hope this tech spreads to lots of other devices and computer displays.

    But, yes, anyone who claims that Apple was lying about it being a "retinal" display is simply attempting to pick a needless fight. Ignore them and move on.

  8. Re:Wrong or right by localman57 · · Score: 4, Insightful

    "the resolution/DPI is so dense that your eyes won't be able to distinguish individual pixels"(TM). OR...


    "Retina Display"(TM).

  9. Re:Wrong or right by vakuona · · Score: 4, Insightful

    I think Android's popularity might have more to do with it being available on more devices, including much cheaper devices. Even then, the single model iPhone is still outselling it (counting different capacity iPhones as one model of course). You overestimate the average consumer's ability to care about things such as being able to run software from anywhere.

  10. Re:Wrong or right by NekSnappa · · Score: 4, Interesting

    I think you're taking it too far with this statement.

    The big benefit of "being able to run the software you want rather than what Steve Jobs says you can run" seems to speak to people

    I'd say it's more of case of letting people know that Android phones do apps too. Joe or Jane Average could care less that the apps aren't "curated" in the "walled garden." They just want to know if the phone does apps, and how easy is it to get them.

    --
    I want to shoot the messenger!
  11. math failure by poetmatt · · Score: 4, Informative

    it's alright, the math assumes that nobody is nearsighted. Since nearsightedness is very common, the article's comments don't hold true at all.

    Some people can see magnitudes smaller arcmin than .6 up close, in fact like .2 or so. Anyone with 20/10 vision (which is common with correction such as eyeglasses or contacts) is going to still see plenty of pixelation.

    It's still a substantial improvement in pixels, but the article is incorrect.

    1. Re:math failure by thechemic · · Score: 4, Funny

      Each retina also has as blind spot (http://en.wikipedia.org/wiki/Blind_spot_%28vision%29). So until these lame iPhone have 2 displays, each with a huge hole in the middle, I dont want to hear anyone calling them retina displays! I dont go around calling blue things, purple. If it doesnt work like a retina, smell like a retina, act like a retina, or taste like one either... then dont call em retina displays. Got it Jobs?

      --
      Let's make like a bird... and get the flock outta here.
  12. Re:the world seen through pixels. by toastar · · Score: 5, Funny

    You mean that real life doesn't have pixels everywhere I look?

    Have you ever seen how pixelated the beach is?

  13. It's just a marketing name, for crap's sake by name_already_taken · · Score: 5, Insightful

    It's not _projecting onto ones retina_ any more than another LCD screen is.

    But you see, they all do that. All visible objects do that. That's how our eyes work. Light reflected or emitted from objects uses the lens in your eye to project an image onto your retina. It is technically correct, and no, it's not anything special, other than being a high resolution display.

    Could it be, that this is just a trade name? (and that perhaps some people have a little too much time on their hands?)

    When I search for a document on my Mac, I don't expect an actual Spotlight to shine on the document.

    When I restore a file from a backup using Time Machine, I don't imagine that there's actual time travel taking place.

    If I use the feature that shows all of my overlapping windows resized so they fit on the screen and I can choose which one to work on, I don't expect the crew from 20/20 or 60 Minutes or Dateline NBC to show up and do an actual Exposé.

    Holy crap, I just found out there's no control tower or runway involved in using Airport networking! What a complete and total fraud!

    MobileMe doesn't actually cause me to move around either!

    And, worst of all, the damned Magic Mouse doesn't have any magical powers! I just tried to cast a Patronus Charm with it, just like in those Harry Potter movies, and the damn thing didn't work at all. It doesn't even fly around unless you throw it. I want my money back!

    --
    Putting moderation advice in your .sig lowers your karma!
  14. Re:Wrong or right by Culture20 · · Score: 4, Interesting

    The only reason my friends have cited for eschewing iPhone and going Android when it came out is "It's not AT&T". They think of Android phones as iPhones that work on other networks.

  15. Re:Wrong or right by e4g4 · · Score: 4, Insightful

    I think Android's popularity might have more to do with it being available on a network other than AT&T.

    --
    The secret to creativity is knowing how to hide your sources. - Albert Einstein
  16. Re:Wrong or right by MachineShedFred · · Score: 4, Insightful

    I think this speaks poorly of the general public

    The general public doesn't give a damn about DPI numbers, nor should they. They care about something that gives them value for their dollars, and marketing is all about conveying the value.

    --
    Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
  17. Re:Wrong or right by LWATCDR · · Score: 4, Interesting

    It is called marketing.
    Tell you what. Show me where their is a turbine on an Intel I7 and how it speeds up the CPU when you use Intel's Turbo Boost technology and I will all bent out of shape over Apple's Retina display.
    It is market speak and it is everywhere. It usually only bugs you if you don't like the product, the company, or know how stuff really works.
    Frankly I just tune it all out and don't let it bother me anymore.

    --
    See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
  18. Re:Wrong or right by cyber-dragon.net · · Score: 4, Informative

    you don't like iTunes that's fine... but what rock have you been hiding under that you don't know Apple removed the DRM the second they were allowed to?