"Gorilla glass 4" strengthens the strength twice as strong as other glasses reinforced glass, strongly strengthens the impact resistance and abrasion resistance when dropping the smartphone

Corning gorilla glass which has been adopted as a display of many smart phones and is highly evaluated for durability / scratch resistance. Gorilla glass, which is synonymous with smartphone tempered glass, is the first model in 2 years "Gorilla Glass 4 (gorilla glass 4)It was officially announced as. What is the evolution of the new gorilla glass?

Corning Redefines the Standard in Damage Resistance With Gorilla® Glass 4
http://www.corning.com/news_center/news_releases/2014/2014112001.aspx

(PDF file) Corning Gorilla Glass 4_PI Sheet_111014_A.pdf
http://www.corninggorillaglass.com/uploads/kcfinder/files/Corning%20Gorilla%20Glass%204_PI%20Sheet_111014_A.pdf

You can understand in what scenes the gorilla glass 4 is appreciated by seeing the following movie in one shot.

Corning® Gorilla® Glass 4: Sneak Attacks - YouTube


Children's gorillas playing with smartphones. From the back of the sofa is the appearance of brothers looking into the situation.


Apparently seems to be absorbed in the game. I'm tapping the screen quite roughly.


A smartphone competition started.


While competing, the smartphone was hit by the floor.


The display was safe this way although it was beaten up intensely.


Is it saying "Gorilla glass 4, is not it?"


You can check how strong the gorilla glass 4 is with the following movie.

Corning® Gorilla® Glass 4: Testing Video - YouTube


"Corning's gorilla glass is the first universe, a reliable cover glass (protective glass)".


A woman who notices the incoming call and tries to remove the smartphone from the bag.


I inadvertently dropped my smartphone.


Only when dropping it is common that the ground is asphalt or concrete. Apparently it seems the display glass has been damaged.


Corning researchers check the properties of various types of glass.


Pressure is applied ......


Check the surface with a microscope.


This is a scratch on the glass surface. Small scratches lead to large cracks due to the properties of the glass.


A smartphone that often drops on hard ground. Assuming that harsh environment, it is said that Corning has adopted a severe drop test. Lift the smartphone to a height of 1 meter ......


Drop with momentum and pound on the ground.


Since it is assumed that it falls on rough ground such as asphalt and concrete, sandpaper with high friction coefficient is installed on the surface of hard floor.


If ordinary glass it will crack will enter like this.


Gorilla glass 4 is rather ......


Perform the same drop test.


There is not a single scar on the dressed smartphone.


Gorilla glass successfully withstood 80% of the drop test.


cheapSoda lime glassIt is rare that it can withstand a drop test.


Competitor'sAluminum silicate glassEven compared to durability of gorilla glass 4 is two times that.


The durability in the state with deep scratches was set as the front model "Gorilla glass 3This is the graph compared with. The vertical axis isWeight pounds per square inchThe load (pressure) per psi (psi) and the thickness of the glass that the horizontal axis can endure. It can be seen that the gorilla glass 4 can withstand the same load even with a thinner thickness than the gorilla glass 3.


In the comparison of scratches at 15 psi pressure, the gorilla glass 4 (upper) lives more shallowly than the gorilla glass 3 (lower).


It can be seen that the 0.4 mm thick gorilla glass 4 can withstand a larger load than the 0.7 mm thick gorilla glass 3.


The gorilla glass 4 boasting shock resistance and abrasion resistance which overwhelmingly exceeds the gorilla glass 3 adopted in most high-end model smartphones will be offered to smartphone manufacturers from the beginning of 2015. The 2015 model smartphone seems to be harder to crack and less likely to be scratched than it is now.