Video shows supposed 4.7-inch 'iPhone 6' display scratched by sandpaper, suggests not sapphire

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  • Reply 61 of 71
    tallest skiltallest skil Posts: 43,388member
    Originally Posted by Matt Perkins View Post

    I believe the iPhone 6 will have a glass and sapphire blend while the iPhone Air will have the full sapphire screen. And if you think about it, it's quite logical.



    So the device that doesn’t exist and which is being given a ludicrous name will have all the good things we don’t know about.

     

    Just clarifying.

     

    The iPhone Air will be the premium iPhone and thus needs features to make it stand out from the iPhone 6.


     

    There is nothing premium about a phone that is too large to be used.

     

    It's hard to imagine the lower end iPhone will have better battery than the premium one.


     

    It’s hard to imagine anything lower-end about it, seeing as it isn’t low end in any respect whatsoever. 

  • Reply 62 of 71
    jfc1138jfc1138 Posts: 3,090member
    Quote:

    Originally Posted by Cpsro View Post

     

    It's a common mistake... I do it all the time with rumored iPhone 6 parts... he scratched the wrong side.


    People never hold them the right way....

  • Reply 63 of 71
    jfc1138jfc1138 Posts: 3,090member

    "I believe the iPhone 6 will have a glass and sapphire blend while the iPhone Air will have the full sapphire screen."

     

    ?For various structureal reasons (plus I believe it's what they've patented) the screen would be a laminate: get the scratch benefits of Saphire but structure from the other layers. One of the reasons the GATV process is so great, really thin sheets...

  • Reply 64 of 71
    darkvaderdarkvader Posts: 1,146member

    You know, of the issues that cause problems on the iPhone, scratches are not a huge problem.

     

    Apple should be more concerned about cracking - which means NOT using sapphire.

     

    But more importantly, Apple needs to fix the water damage issue.  Apple put great effort into detecting water damage so they could void your warranty, but none into making the phone more water resistant.  I see far more water damaged iPhones than I've ever seen cracked ones.

  • Reply 65 of 71
    jungmarkjungmark Posts: 6,926member
    darkvader wrote: »
    You know, of the issues that cause problems on the iPhone, scratches are not a huge problem.

    Apple should be more concerned about cracking - which means NOT using sapphire.

    But more importantly, Apple needs to fix the water damage issue.  Apple put great effort into detecting water damage so they could void your warranty, but none into making the phone more water resistant.  I see far more water damaged iPhones than I've ever seen cracked ones.

    Or users should be more careful around water/liquids.
  • Reply 66 of 71
    euphonious wrote: »
    Also, I hate to do this, but this kind of mistake appears in articles on news sites far too often (yep, even over on CNN):

    "In a video posted to YouTube late Friday, a part purported to be Apple's "iPhone 6" cover glass was again exposed to a torture test, this time failing to resist scratches from garnet sandpaper, a material softer than sapphire."

    I've read that sentence five times and still have no idea what's wrong with it.

    The word in red wasn't spoken by Christ.
  • Reply 67 of 71
    I believe the iPhone 6 will have a glass and sapphire blend...

    So the iPhone does blend! Thanks for clearing that up.
  • Reply 68 of 71
    cizuzcizuz Posts: 2member
    Seriously?

    I created an account for this. Mohrs hardness scale is outdated, however forgetting that the mohrs hardness scale does not say a softer material can not scratch a harder material, it basically measures which is more resistant.

    Sand paper can scratch diamond, but in most cases will leave invisible tiny scratchs or very little to no scratches.

    Sapphire is no exception.

    This is maddening someone actually posted because it was scratched by something less hard it can't be sapphire.

    This isn't even coming from an apply fanboy, always had samsung and always will for now.

    But seriously they didn't even research and this seems more or less like a smear campaign if anything.
  • Reply 69 of 71
    cizuzcizuz Posts: 2member
    Why did no one point out the Mohs scale DOES NOT say a softer material can not scratch a harder material.

    It certainly can, what the Mohs scale measures is resistance or reluctance of one material to scratch another.

    Sand paper can scratch diamonds, the thing is it comes down to percentages basically. A 7 vs an 8, an 8 will scratch the 7 95% more than the 7 will scratch the 8, a 10 will scratch a 7 99.99% more than a 7 will scratch a 10.

    Those are made up numbers because it really really depends on the materials used, and Mohs scale is actually outdated and quite wrong in a lot of cases. But that's the point, a harder material resists scratching from a softer material. That's all. It does not say a softer material can not scratch a harder material.

    That said what really gets me is people expected this to be all sapphire, and that would be horrible. A single sheet of a hard material means it'll be more prone to shattering. The more hard a material, the more brittle.

    So to get around this, and what is what you REALLY want is a multiple layer, treated, or different technique. The best screen you can hope for is a sapphire layer, on top of a more flexible layer. That means the sapphire will resist scratching, but being a thin layer allows it to flex with the under layer it's fused to, such as a flexible glass.

    This isn't a bad thing, and people in comments are trying to say it is.

    A diamond screen would be pretty much the worst screen ever, diamond shatters pretty easily, which is why everytime in a show they show them testing a diamond by hitting it with a hammer is cringe worthy, a real diamond would shatter. Though a diamond screen would be pretty scratch proof(Still can scratch it, just more resistant). That being said the best screen would be a diamond layer on a soft flexible layer.

    This bugs me, because all these people arguing have no idea about material science. We use steel because it's a blend of soft, hard, and tensile strength making it a perfect material for building. People want us to use titanium instead, but titanium in most cases would be a worse option then steel due to being harder and more prone to failure.

    Material science doesn't come down to best X, it comes down to best X, Y and Z balanced for expected loads, use, and expected failure points.
  • Reply 70 of 71
    Quote:

    Originally Posted by Cizuz View Post



    Why did no one point out the Mohs scale DOES NOT say a softer material can not scratch a harder material.



    It certainly can, what the Mohs scale measures is resistance or reluctance of one material to scratch another.



    Sand paper can scratch diamonds, the thing is it comes down to percentages basically. A 7 vs an 8, an 8 will scratch the 7 95% more than the 7 will scratch the 8, a 10 will scratch a 7 99.99% more than a 7 will scratch a 10.



    Those are made up numbers because it really really depends on the materials used, and Mohs scale is actually outdated and quite wrong in a lot of cases. But that's the point, a harder material resists scratching from a softer material. That's all. It does not say a softer material can not scratch a harder material.



    That said what really gets me is people expected this to be all sapphire, and that would be horrible. A single sheet of a hard material means it'll be more prone to shattering. The more hard a material, the more brittle.



    So to get around this, and what is what you REALLY want is a multiple layer, treated, or different technique. The best screen you can hope for is a sapphire layer, on top of a more flexible layer. That means the sapphire will resist scratching, but being a thin layer allows it to flex with the under layer it's fused to, such as a flexible glass.



    This isn't a bad thing, and people in comments are trying to say it is.



    A diamond screen would be pretty much the worst screen ever, diamond shatters pretty easily, which is why everytime in a show they show them testing a diamond by hitting it with a hammer is cringe worthy, a real diamond would shatter. Though a diamond screen would be pretty scratch proof(Still can scratch it, just more resistant). That being said the best screen would be a diamond layer on a soft flexible layer.



    This bugs me, because all these people arguing have no idea about material science. We use steel because it's a blend of soft, hard, and tensile strength making it a perfect material for building. People want us to use titanium instead, but titanium in most cases would be a worse option then steel due to being harder and more prone to failure.



    Material science doesn't come down to best X, it comes down to best X, Y and Z balanced for expected loads, use, and expected failure points.

     

    Excellent post.

  • Reply 71 of 71
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