iPhone 4 apps will fill iPad screen, get VGA output

Posted:
in iPhone edited January 2014
It seems obvious in retrospect to consider that apps designed for iPhone 4 will nearly fill an iPad display. Conversely, iPad apps will nearly fit into the new phone's Retina display without modification.



The stunning 960x640 resolution of the iPhone 4 Retina display is double the linear resolution of the current iPhone, giving it the highest pixel density of any smartphone on the market when it goes on sale later this month. The iPad's 1024x768 resolution is just slightly larger despite having a much larger display surface. While the 132ppi pixel density of iPad was already higher than any Mac Apple sells, the new iPhone 4 boasts a much higher 326ppi resolution density.



The iOS app developer of Make Coffee depicts on its site how apps with a native resolution version designed for iPhone 4 will look on iPad (below); it's the same as a pixel doubled version of a standard iPhone app, but in high resolution of course.



At WWDC, chief executive Steve Jobs noted during his keynote presentation that iPhone 4 will automatically scale existing iOS apps to its higher resolution, making text and user interface controls appear sharper without developers needing to do anything. Jobs noted that with a little additional effort, custom artwork can be enhanced to make iPhone 4 apps that look exceptional.



This reduces the efforts developers must make to address the iOS mobile resolution of existing iPhone and iPod touch users as well as iPhone 4 and iPad resolutions. These can all be packed into the same universal app. Other platforms have introduced a variety of non-standard resolutions on various new phones that developers will need to test against, complicating their efforts.







Blogger Robert Scoble captured a detailed shot of the new phone using what appears to be a 21 megapixel camera, resulting in a detailed, fingerprint-level look at its screen resolution density (shown here in part at the photo's native resolution).







iPhone 4 gets additional iPad video features



Also underreported is the fact that iPhone 4 will support the iPad's VGA video output cable for delivering 1024x768 resolution, enabling developers to add video output features to their apps. Unfortunately, there is no hardware support for HDMI output (or its HDCP DRM), meaning that high definition content from iTunes will not be playable through a VGA projector or display.



Several high end competing smartphone devices now support HDMI output, although (somewhat ironically), these devices don't really have access to sync legitimately licensed HD media from sources such as iTunes or Blu-Ray Digital Copy, and therefore can only play what they don't have, rather than not being able to play what they do have, as iPhone 4 and iPad.



Unlike iPad, iPhone 4 can capture photos and video in both VGA quality (from the front facing camera) and in 720p HD at 30 fps from the 5 megapixel rear camera, providing additional reasons to output 1024x768 video from the device.



iPhone 4 also appears able to support the iPad's camera connection kit, although this isn't expressly stated by Apple. The new phone specifications add support for MJPEG video compression, a very inefficient format primarily used by point-and-shoot cameras that take video and capture it as AVI files. Support for the codec is only useful for syncing with camera devices; other similarities between iPhone 4 and iPad (such as VGA out support) suggest that the camera adapter should work with the new phone as well.
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Comments

  • Reply 1 of 102
    29922992 Posts: 202member
    ok, now what?
  • Reply 2 of 102
    wurm5150wurm5150 Posts: 763member
    Good deal...
  • Reply 3 of 102
    bikertwinbikertwin Posts: 564member
    Quote:
    Originally Posted by AppleInsider View Post


    Conversely, iPad apps will nearly fit into the new phone's Retina display without modification.



    I'm guessing you're talking about theoretical, as opposed to shipping functionality.



    I mean, there's no way you'd want to run an iPad app (designed for a 9.5" touchscreen) on an iPhone 4's 3.5" touchscreen.



    The touch targets (and text and graphics) would appear miniscule. The app would be, for all practical purposes, unusable, and SJ would certainly never allow this travesty.
  • Reply 4 of 102
    leesureleesure Posts: 15member
    OK, but what will native iPhone4 apps look like on an iphone 3gs?
  • Reply 5 of 102
    jukejuke Posts: 1member
    Quote:
    Originally Posted by AppleInsider View Post


    While the 132ppi pixel density of iPad was already the highest of any device Apple sells, the new iPhone 4 boasts a 326ppi resolution density.



    That's actually not true, the current iPod nano boasts a 204ppi resolution.



    http://www.apple.com/ipodnano/specs.html
  • Reply 6 of 102
    Quote:

    While the 132ppi pixel density of iPad was already the highest of any device Apple sells,



    Actually, all the older iPhones and Touch, as well as any classic iPod beat the PPI of the iPad.



    http://en.wikipedia.org/wiki/List_of...sity#Apple_Inc.
  • Reply 7 of 102
    SpamSandwichSpamSandwich Posts: 31,012member
    Boy, that display looks nice.
  • Reply 8 of 102
    Quote:
    Originally Posted by leesure View Post


    OK, but what will native iPhone4 apps look like on an iphone 3gs?



    I think that there will be few iPhone 4 only apps. It would be a commercial suicide. I think you will have tons of "universal iphone apps". I mean apps that works on every iphone at different resolutions. So to answer your qustion, iPhone 4 apps will look on a 3gs/3G/edge as usual, while will look pretty sharper on the new device.



    I actually don't agree with Jobs when he says that with small efforts you can update the visual of your app. It really depends on the app. Apps that only uses the cocoa touch library will need no effort at all, while apps like mine (the make coffee one mentioned above) will need such an effort that we decided to go straight to version 2.0 evolving the whole app concept.



    p.s.

    I got more high res pictures here, check it out:



    http://www.make-coffee.net/images/iO...RANSPARENT.png



    http://www.make-coffee.net/images/iO...RANSPARENT.png
  • Reply 9 of 102
    Cool, so all my HD apps on my iPad should work on the new iPhone 4, right?
  • Reply 10 of 102
    Quote:
    Originally Posted by jarvijarv View Post


    Cool, so all my HD apps on my iPad should work on the new iPhone 4, right?



    No... actually is the opposite thing. Your iPhone 4 apps should work in a pretty good high def on your iPad
  • Reply 11 of 102
    sensisensi Posts: 346member
    Please stop calling it a "retina display" lol, that marketing fallacy was debunked over here:



    Quote:

    The iPhone 4 is actually very far from a retina display. It's a substantial discrepancy and not even close: At 12 inches the 1 dimensional linear difference is 326/477 = 68 percent. But the pixel (area) density for two dimensions, which is the actual relevant observable, is that value squared = 0.47, so the iPhone 4 is more than a factor of two from being a retina display at the typical 12 inch viewing distance. Stated another way: The iPhone display would need to have 1.3 megapixels instead of 0.6 megapixels to be a retina display.



    http://www.pcworld.com/article/19840...a_display.html



    Still the best display out there but I am not the only one to just hate marketing misleading falsehoods, whoever is spreading them.
  • Reply 12 of 102
    anantksundaramanantksundaram Posts: 19,118member
    Quote:
    Originally Posted by Sensi View Post


    Please stop calling it a "retina display" lol, that marketing fallacy was debunked over here:







    http://www.pcworld.com/article/19840...a_display.html



    Still the best display out there but I am not the only one to just hate marketing misleading falsehoods, whoever is spreading them.



    Wake up and smell the coffee.
  • Reply 13 of 102
    anantksundaramanantksundaram Posts: 19,118member
    Quote:
    Originally Posted by bikertwin View Post


    The touch targets (and text and graphics) would appear miniscule. The app would be, for all practical purposes, unusable, and SJ would certainly never allow this travesty.



    This is an excellent point -- I was wondering about that too, but had trouble articulating it. You phrased it very clearly.
  • Reply 14 of 102
    It is true that "retina display" is probably a misleading name, but really explains the idea and is a pretty cool name :P
  • Reply 15 of 102
    shubiduashubidua Posts: 157member
    Quote:
    Originally Posted by Sensi View Post


    Please stop calling it a "retina display" lol, that marketing fallacy was debunked over here:







    http://www.pcworld.com/article/19840...a_display.html



    Still the best display out there but I am not the only one to just hate marketing misleading falsehoods, whoever is spreading them.



    It was discussed here. For most people, it will still be a retina display...
  • Reply 16 of 102
    I think this is not true. The iOs 4 has some scalable gui so cocoa touch library elements will not appear miniscule.



    Every original piece of graphic must be updated to benefit of the new display and of the higher resolution. Otherwise it will not look small but just less sharp.
  • Reply 17 of 102
    solipsismsolipsism Posts: 25,726member
    Quote:
    Originally Posted by Sensi View Post


    Please stop calling it a "retina display" lol, that marketing fallacy was debunked over here:



    http://www.pcworld.com/article/19840...a_display.html



    Still the best display out there but I am not the only one to just hate marketing misleading falsehoods, whoever is spreading them.



    I can't believe you people are still spreading this FUD.

    Remember, Soneira used the 0.6 arcmin resolution of the eye, but that’s for perfect eyesight. Most people don’t have perfect eyesight. I sure don’t. A better number for a typical person is more like 1 arcmin resolution, not 0.6. In fact, Wikipedia lists 20/20 vision as being 1 arcmin, so there you go.

    If I use 1 arcminute instead, the scale factor is smaller, about 3438. So let’s convert that to inches to see how small a pixel the human eye can resolve at a distance of one foot:12 inches / 3438 = 0.0035 inches
    Aha! This means that to a more average eye, pixels smaller than this are unresolved. Since the iPhone’s pixels are 0.0031 inches on a side, it works! Jobs is actually correct.
    If 65% of the population have 20/20 vision or worse how is it not a "retina display" to the vast majority of people who don't have Dr. Soneira's "best case scenario" of 20/12 eyesight, which really isn't the case scenario of known human vision.
  • Reply 18 of 102
    bikertwinbikertwin Posts: 564member
    Quote:
    Originally Posted by anantksundaram View Post


    This is an excellent point -- I was wondering about that too, but had trouble articulating it. You phrased it very clearly.



    Thank you.
  • Reply 19 of 102
    jpcgjpcg Posts: 114member
    Quote:
    Originally Posted by solipsism View Post


    Aha! This means that to a more average eye, pixels smaller than this are unresolved. Since the iPhone’s pixels are 0.0031 inches on a side, it works! Jobs is actually correct.



    He is right, here is another link:

    http://www.kybervision.com/Blog/file...naDisplay.html
  • Reply 20 of 102
    solipsismsolipsism Posts: 25,726member
    Quote:
    Originally Posted by jpcg View Post


    He is right, here is another link:

    http://www.kybervision.com/Blog/file...naDisplay.html



    Good write up.
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