I saw a video from GTA where they demonstrated a big machine which can produce sapphire layers which where as thin as a hair. They did this by shooting protons (?) into a sapphire block. The protons resided in a defined depth. Then they heated the block and the protons reacted with the sapphire and produced helium (or so), so that a ultra thin later separated from the block. This thin sheet then could be laminated on a cheaper glass layer. Maybe this is the way apple did it?!
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Smartphone Manufacturers 'Lukewarm' on Sapphire, Call Material Impractical Due to Cost and Supply
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I saw a video from GTA where they demonstrated a big machine which can produce sapphire layers which where as thin as a hair. They did this by shooting protons (?) into a sapphire block. The protons resided in a defined depth. Then they heated the block and the protons reacted with the sapphire and produced helium (or so), so that a ultra thin later separated from the block. This thin sheet then could be laminated on a cheaper glass layer. Maybe this is the way apple did it?!
No, they used plastic because the resistive touch screen technology that was used in them requires the screen to be plastic and "soft".
Apple Patents Stronger Sapphire Displays
http://techcrunch.com/2014/07/10/ap...e-displays-and-illuminated-sapphire-controls/
Apple's invention for a "Sapphire component with residual compressive stress," which describes a method of shaping and selectively generating residual compressive stress in aluminum oxide ceramic (sapphire) material to strengthen specific regions prone to breakage.
The supply argument only applies if you can't have an exclusive supplier that can make it faster than anyone else.
I thought the same. Then I did some research. Some companies are selling sapphire fiber 0.15 - 0.3 mm in diameter. In technical characteristics they quote the light loss % for the situation when the fiber is bent with the bend radius 10 mm. The extreme bending radius for 0.15 thick sapphire fiber is 4mm.
So if the sapphire screen is 0.3 cm thick - it can bend a lot. The reviewers noted that the screen was "paper thin". It could be close to 0.3.
I've also found out that with every doubling of the thickness the minimum bending radius is increased 16 times.
So 10 mm bend radius is pretty safe for a 0.15 mm thick sapphire sheet. Then it's 160 mm for 0.3 mm thick sapphire. That's approximately what the video shows
Sure doesn't. I think there's a possibility of seeing Apple do to Corning what they did to Qualcomm with the A7 all over again.
Apple's competition slamming sapphire reminds of how 64-bit was slammed until it wasn't... sour grapes trash talk.
By the way, does Corning's sapphire vs. Gorilla Glass in any way relate to real life, or is it just a clever test meant to distract?
I also wonder if Apple has additional intentions for sapphire besides scratch resistance, perhaps something like on-glass fingerprint reading!
By the way, does Corning's sapphire vs. Gorilla Glass in any way relate to real life, or is it just a clever test meant to distract?
I also wonder if Apple has additional intentions for sapphire besides scratch resistance, perhaps something like on-glass fingerprint reading!
Remember, a company has to sell what it has ... Corning trying to disparage sapphire happens in part because Corning's Gorilla Glass bull is about to get gored...
Out of Corning's distress, and massive over-capacity after Apple moves away from GG, will be a silver lining - for other handset makers - and that should be Corning working to reduce price of GG in order to stem the loss of other customers for its product.
I would suggest that Corning start doing a little investment in sapphire, or sapphire GG, R&D...
Whether the screen shown in the video is sapphire or not, it's clearly shown to be both scratch resistant and incredibly flexible. What other material has these properties?
Scratches in the coating suck but you can usually rub them away, it's when the coating wears down and you're left with raw screen that it's really bad. A scratch in the screen is visible in any light with the phone on as it refracts the backlighting...scratches in the coating just show up under light at certain angles.
Given that sapphire does not bend like that, it is fairly safe to say that what is on that video is not sapphire.
Well, Apple did patent flexible saphire with liquid metal. Again, I don't claim to know what it is, just pointing it out:
http://timesofindia.indiatimes.com/...le-sapphire-display/articleshow/27687700.cmsl
So you're saying that you know without a doubt this isn't the sapphire Apple's been working on? The one that is supposedly 1 molecule thin spread over another material? Yeah...no, you don't know.
Thanks for the insight. Didn't realize we had a resident physics and materials expert on the forum.
Do you also think glass can't bend?
Apple Reveals Sapphire Flexible Transparent Display Devices Created with Liquid-Metal
http://www.patentlyapple.com/patent...display-devices-created-with-liquidmetal.html
Do your issue is basic logic. I guess scratches aren't a concern and people all use screen protectors because... Muffins!
What do you mean "what other"? Sapphire is definitely not flexible at all, so your question is incorrect to begin with.
Gorilla glass. Gorilla glass is flexible and does not scratch with those things he used, it DOES scratch with sand or sandpaper which he did not use.