I hear Gorilla Glass 3 is coming out.

gevorg

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Nov 3, 2004
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But can it consistently survive a 4ft drop test on a concrete road? I never shoot metal marbles at my phone...
 

gmaster456

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Sep 7, 2011
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I don't give a damn how far it can bend, I wanna know if it can survive a 4ft fall onto cement and not shatter.
 

wirednuts

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Jan 26, 2007
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But can it consistently survive a 4ft drop test on a concrete road? I never shoot metal marbles at my phone...

please stop before you start. i am so sick of complaints about gorilla glass. it has been a godsend to cellphones and tablets. do you have any idea what it was like before the stuff came out?

gorilla glass is by far the best glass you can get. if you dont like it, make something better.
 

gmaster456

Golden Member
Sep 7, 2011
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please stop before you start. i am so sick of complaints about gorilla glass. it has been a godsend to cellphones and tablets. do you have any idea what it was like before the stuff came out?

gorilla glass is by far the best glass you can get. if you dont like it, make something better.
I don't see where he stated it was bad...
 

wirednuts

Diamond Member
Jan 26, 2007
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I don't see where he stated it was bad...

he made an incredibly ignorant and dismissive comment that clearly shows his lack of understanding of the engineering and chemistry involved to make the best optical protection out there.
 

gevorg

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Nov 3, 2004
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please stop before you start. i am so sick of complaints about gorilla glass. it has been a godsend to cellphones and tablets. do you have any idea what it was like before the stuff came out?

gorilla glass is by far the best glass you can get. if you dont like it, make something better.

he made an incredibly ignorant and dismissive comment that clearly shows his lack of understanding of the engineering and chemistry involved to make the best optical protection out there.

Butthurt much? I have nothing against the engineering that was made into Gorilla glass, better than nothing/before, but from a practical perspective there is plenty of need for improvement. Pretty sure they'll get there at some point.
 

slugg

Diamond Member
Feb 17, 2002
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he made an incredibly ignorant and dismissive comment that clearly shows his lack of understanding of the engineering and chemistry involved to make the best optical protection out there.

Dude... He made a valid point. He's saying that these laboratory benchmarks are kind of irrelevant. Wouldn't you have preferred to see them intentionally drop phones on the ground at CES, as opposed to rolling a ball through a tube?

Also, did anyone else see a problem with this logic?
1. Ball rolls down a 10 degree incline, hits the glass.
2. Later, the lady raises it to a 30 degree impact and says it's 3 times the energy. Looks like Corning no good at the maths.
 

glen

Lifer
Apr 28, 2000
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Dude... He made a valid point. He's saying that these laboratory benchmarks are kind of irrelevant. Wouldn't you have preferred to see them intentionally drop phones on the ground at CES, as opposed to rolling a ball through a tube?
Actually, no.
Too many random variables in a drop to the ground.
Metal ball in a tube is repeatable and give a great relative sense of strength when comparing different glass.
 

rumpleforeskin

Senior member
Nov 3, 2008
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I think there is a great deal of misunderstanding about what gorilla glass was designed to do. Its a tough scratch resistant surface that dos not hinder the optical output of the screen. It was never designed to be thrown at the floor or deflect bullets.

Remember how smartphone screens used to look after a year of use before gorilla glass :) for sure this is a great product
 

WelshBloke

Lifer
Jan 12, 2005
32,892
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Actually, no.
Too many random variables in a drop to the ground.
Metal ball in a tube is repeatable and give a great relative sense of strength when comparing different glass.

They need to have some sort of edge impact test. Thats the area that needs improving the most.

I think there is a great deal of misunderstanding about what gorilla glass was designed to do. Its a tough scratch resistant surface that dos not hinder the optical output of the screen. It was never designed to be thrown at the floor or deflect bullets.

Remember how smartphone screens used to look after a year of use before gorilla glass :) for sure this is a great product

This as well.
 
Oct 25, 2006
11,036
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Actually, no.
Too many random variables in a drop to the ground.
Metal ball in a tube is repeatable and give a great relative sense of strength when comparing different glass.

No there isn't. You take a fixed piece of glass in a cage at a 30 degree angle.

You drop a flat weight on the edge from a premeasured distance. Voila, edge impact tests done easily and reproducible.

Basically all they have to do is make a cheap and tiny version of an impact test machine.
Can easily cook one up in about 30 minutes

Flat impact tests are usually not a good indicator for normal usage because phones rarely drop flat on the screen. They always tend to be at angle so the edge almost always takes most of the energy. All this chemical treatment to make it tougher from one direction and harder to resist scratches, REALLY screws with its edge impact cracking resistance. My GS3 got cracked when it fell down literally 2.5 feet onto pavement when I dropped with while taking it out of my pocket. The bezel is too thin to absorb the energy before it gets to the glass.


Straight on impact performance has already been good for a few years now. Now work on edge performance, the most common type of impact.

Also, 10 degrees vs 30 degrees is not 3 times more energy.
 
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rumpleforeskin

Senior member
Nov 3, 2008
380
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Gorilla glass does not shatter because they do not know how to test it but because reducing glasses brittleness is counter to what gorilla glass was aiming to achieve. To reduce scratches you need a very hard surface, the downside of this is that increased hardness also increases brittleness.

There are other types of glass which are far more robust when dropped, such as those made from soda-lime-silica. But the scratch resistant properties are far reduced.

Having both properties may currently be possible but I'm guessing it will not be at a price that consumers will accept. A better solution may be to do away with edge-to-edge glass screens. But like many, I love the look/feel of modern phones.
 

Anubis

No Lifer
Aug 31, 2001
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Gorilla glass does not shatter because they do not know how to test it but because reducing glasses brittleness is counter to what gorilla glass was aiming to achieve. To reduce scratches you need a very hard surface, the downside of this is that increased hardness also increases brittleness.

There are other types of glass which are far more robust when dropped, such as those made from soda-lime-silica. But the scratch resistant properties are far reduced.

Having both properties may currently be possible but I'm guessing it will not be at a price that consumers will accept. A better solution may be to do away with edge-to-edge glass screens. But like many, I love the look/feel of modern phones.

basically all of this
also the people at CES are not often engineers (in reference to the bad at maths comment)
 
Oct 25, 2006
11,036
11
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Gorilla glass does not shatter because they do not know how to test it but because reducing glasses brittleness is counter to what gorilla glass was aiming to achieve. To reduce scratches you need a very hard surface, the downside of this is that increased hardness also increases brittleness.

There are other types of glass which are far more robust when dropped, such as those made from soda-lime-silica. But the scratch resistant properties are far reduced.

Having both properties may currently be possible but I'm guessing it will not be at a price that consumers will accept. A better solution may be to do away with edge-to-edge glass screens. But like many, I love the look/feel of modern phones.

Scratch resistance only affects very minor aspects of the screen, scratches are merely cosmetic.

Cracks can actually heavily affect the operation of the phone and heavily hinder enjoyment. Most consumers are perfectly happy putting scratch protectors on their screens. Crack resistance is much much more important, because unless you put a heavy duty case on, cracks are much more likely to happen.
 

Yuriman

Diamond Member
Jun 25, 2004
5,530
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Gorilla glass does not shatter because they do not know how to test it but because reducing glasses brittleness is counter to what gorilla glass was aiming to achieve. To reduce scratches you need a very hard surface, the downside of this is that increased hardness also increases brittleness.

There are other types of glass which are far more robust when dropped, such as those made from soda-lime-silica. But the scratch resistant properties are far reduced.

Having both properties may currently be possible but I'm guessing it will not be at a price that consumers will accept. A better solution may be to do away with edge-to-edge glass screens. But like many, I love the look/feel of modern phones.

It goes a little deeper than that. Gorilla glass is "tough" because it is under compression at an atomic level. All glass does very well under compression but poorly under tension or shear forces. It's fallacious to say "it's harder so it's harder to scratch but shatters more easily".
 

pakotlar

Senior member
Aug 22, 2003
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please stop before you start. i am so sick of complaints about gorilla glass. it has been a godsend to cellphones and tablets. do you have any idea what it was like before the stuff came out?

gorilla glass is by far the best glass you can get. if you dont like it, make something better.

I think you miss the 2nd point of market economies. Complaining is a signal to makers of profit potential.