iPad mini The space between glass and LCD (iPad Mini)

Discussion in 'iPad' started by Defender2010, Nov 9, 2012.

  1. Defender2010, Nov 9, 2012
    Last edited: Nov 9, 2012

    Defender2010 macrumors 68030

    Defender2010

    Joined:
    Jun 6, 2010
    Location:
    England
    #1
    Why is there such a big gap between the glass and the LED on the iPad Mini? Similar to the first iPad! The Apple video talks about .2 mm here and .1 there thinner but his seems like an obvious way they could have shaved more mm of it. Why could they not have brought the two closer together? It would reduce reflection, perhaps size. Or to make the battery 2 or 3 mm thicker. Seems kinda odd when they are laminating iMacs and not something as small as the iPad Mini, no?
     
  2. xraydoc macrumors demi-god

    xraydoc

    Joined:
    Oct 9, 2005
    Location:
    192.168.1.1
    #2
    More expensive to do that. Yes, Apple could tolerate a slightly smaller profit margin on the iPad mini, but nonetheless the answer is most likely they chose not to incur the additional expense.
     
  3. aka777 macrumors 6502a

    Joined:
    Mar 13, 2012
    #3
    This space is precisely what's causing it to have significantly higher reflections than the competitors.
     
  4. lianlua macrumors 6502

    Joined:
    Jun 13, 2008
    #4
    They will, but the new touchscreen is a complicated and low-yield device, and doing that now would pose a challenge for yields and create additional supply bottlenecks.
    The air gap between the touchscreen and display is ~0.5mm. It's just about as small as it can possibly be.
    Totally different beasts.
     
  5. Defender2010, Nov 9, 2012
    Last edited: Nov 9, 2012

    Defender2010 thread starter macrumors 68030

    Defender2010

    Joined:
    Jun 6, 2010
    Location:
    England
    #5
    If they can laminate a 3.5 or 4 inch screen and a 21 or 27 inch screen why not a 7.9 inch?
    Also. Where did you get this .5mm figure from? I'd like to read the article. Thanks
     
  6. MrXiro macrumors 68040

    MrXiro

    Joined:
    Nov 2, 2007
    Location:
    Los Angeles
    #6
    $$$ :apple::apple::apple:
     
  7. lianlua macrumors 6502

    Joined:
    Jun 13, 2008
    #7
    It's got nothing to do with the size of the screen, really (other than cost considerations). The iMac has no touchscreen and the iPhone has in-cell touch. The iPad mini uses a new GF2 touch sensor that Apple is first to bring to market. It is laminated to the cover glass (as seen in the iSuppli teardown video), but that cover assembly is not currently fused to the LCD itself because that would constrain LCD supply twofold as well as reduce already low yields, causing supply chain issues and refurbishing headaches later on.
    Oops. I was rushed. I meant to say ~0.25mm, not 0.5mm.

    Here's a diagram showing a comparison of the mini with the full-size iPad. The "lower OCA" is where the air gap is located (OCA stands for 'optically clear adhesive' if you're wondering), and it's probably a little bit bigger than diagrammed there.
     
  8. HarryWarden macrumors 6502a

    Joined:
    Oct 27, 2012
    #8
    Considering Amazon boasts about there being no gap between the glass and sensor (laminated on) Apple really should have done something similar. No doubt they will in future generations of the device.
     
  9. Defender2010 thread starter macrumors 68030

    Defender2010

    Joined:
    Jun 6, 2010
    Location:
    England
    #9
    Thanks for the informative link! :)
     
  10. reputationZed macrumors 65816

    Joined:
    Mar 9, 2011
    Location:
    34°55′42″N 80°44′41″W (34.
    #10
    The Anandtech review of the mini should be out soon. They typically do a pretty good job digging into the how and why of a particular design decision.
     

Share This Page