How are and will be the screens that protect our Smartphones?


Every time we talk more than ideal size of our Smartphones, inch you must have our screens, the resolution , the density of dots per inch (dpi ) and image quality that provide these . However, we often forget an important detail: how the screens are made.

As We have spoken several times in The Free Android , so important that the above details as our screen is protected, whether resistant to shock and scratch and also as lighter the better.

The most common material used for our phone manufacturers to protect our screen is a alkali-aluminosilicate material called Gorilla Glass U.S. company that manufactures Corning. Many current phones on the market have Gorilla Glass (LG Optimus L5, L7, L9, Samsung Galaxy S2, Sony Xperia J) or Gorilla Glass 2 (Samsung Galaxy S3, Nexus 4 HTC One X). They are the first and second version of this material is calculated riding over 1000 million devices Worldwide.


A few months ago we told you that the company also Corning had not been stopped and had submitted Willow Glass , a type of crystal very flexible. With this step, expected to continue to have companies like Samsung and LG that already manufacture Smartphones with flexible screens .


But all is Willow Glass recently also we speak of the next version that we have prepared Corning, Gorilla Glass 3 , far more resistant crystals. Without going any further, the flagships from HTC and Samsung with this glass. Models (HTC One and Samsung Galaxy S4 ) to come soon. It is very possible that many new devices that hit the market this year, with this material.

Of course, there are other manufacturers resistant screens that want to take prominence to Corning , and not only that, a short time ago, has started talking of screens made from Sapphire . A material durable and hard to scratch but much more expensive . However, what are the differences between them? What material is best to protect your phone or tablet?


Soda Lime

Soda Lime Glass is the type most common . It is used to make crystals of all kinds and, as you guessed, also for mobile device screens. Its strength is considerable (if not compare with Gorilla Glass), but you can scratch relatively easily . Their resistance to shock, however, is negligible, as we all have seen ever. In addition, the manufacturing process depends visibility to look through this material, may not be good.

Gorilla Glass

The first version of this material appeared in 2006 and the first device that took him was the first iPhone to hit the market. Since then many are the terminals that carry it. Undoubtedly, Gorilla Glass is by far much stronger than a conventional soda lime glass. Its features are:

  • High resistance a user touch interaction.
  • Very light despite its density and size.
  • Maintains good resistance on models that require less glass thickness .
  • Retains optical properties over time.
  • remains stable and does not lose strength over time.
  • The coating is water resistant , chemicals and disinfectants .

  • is easy to clean and remove dust, dirt or other items.


Gorilla Glass marked a small revolution in the lining of the screens of mobile devices. Is estimated that 20% of devices made after 2006 have led or carry this crystal.

Gorilla Glass 2

Until last year, Corning not present the second version of the material. This, gave a number of additional advantages over its predecessor.

style=”line-height: 13px;”> 20% thinner Gorilla Glass, without losing strength.
  • Improved tactile feedback.
  • brighter screen .
  • also kept the other features of the previous version. Quite an achievement for a material with properties like those mentioned.

    Gorilla Glass 3

    Improving it hardly improved, Corning announced a few months ago at CES 2013, which had a third version list . A crystal seen in terminal which will begin this year. His improvement over the previous are:

    style=”line-height: 13px;”> three times Resistance .

  • And a 40% less visible scratches .
  • Corning sales growth in recent years seems unstoppable, however, gradually increases competition and setting the bar pretty high. Moreover, the growth of Corning decreased last year . Have to wait and see how they fare in 2013.


    While no doubt it’s a wonderful item, the mobile phone industry always seeks improved and True, Gorilla Glass, in any of its versions has become perfect. Perhaps, the main defect is the fragility of the glass . Corning Something must improve to keep riding your screen in most mobile phones.


    Not as well known as Gorilla Glass are Dragontrail crystals , manufactured by the AGC in Japan. It is also an alkali-aluminosilicate material. This crystal is six times more resistant that the first version of Gorilla Glass (Gorilla Glass 2 is five times stronger) and can support 60 kilos weight while Gorilla Glass 2 holds 55 kilos. The differences are not significant, but given the comparison, Dragontrail is better than its competitor. However, with the advantages provided by Gorilla Glass 3, the material must keep improving to keep attracting customers.


    Some Smartphones with this crystal are Xiamo MI2 or Sony Xperia Z.


    Less well known is the cover that Dragontrail Xensation . An alternative German Schott. It consists of aluminosilicate (another) and claims to be stronger than Gorilla Glass, specifically, 20% that Gorilla Glass 2 (corroborating the evidence).


    Sapphire Screens

    Sapphire That is a very hard material already knew (hardness 9/10 on the Mohs scale where 10 is the diamond). But also can be adequately treated equally shockproof. is 3 times stronger than Gorilla Glass 3. These properties make the Sapphire is a strong candidate to appear on the next screen devices. The problem is the price . A sapphire sheet size of a Gorilla Glass, costs 10 times more. However, if research is ongoing, it is possible that we can have this material in very little screen time protecting our Smartphones.


    As you can see, there are quite companies involved in the development of research on the Sapphire . With competition so high, it is quite possible that soon, the manufacturing costs of screens with this material down quickly.


    Here are some charts comparing all these types of crystals to screen:

     Strength GG

    gorilla-glass-durability 434767632_622

    You see, the Lime Soda crystals are very resistant compared to other materials. In the first picture is looking better Gorilla Glass holds pressure until rupture Lime Soda. Approximately 70 times more , when the thickness exceeds 0.5 mm.

    The second graph shows that the damage needed to scratch the Gorilla Glass crystal is much higher than which is necessary to damage a soda lime glass (approximately 400 Newton more force ).

    The third graph, in turn, compares the force necessary to break a crystal Soda Lime , compared with a crystal Dragontrail . The latter two units hold more pressure than the first.


     Other Gorilla Speaking exclusively with Gorilla Glass, the graphic above, and also show improved resistance few other versions . Of course, Lime Soda holds less weight Gorilla Glass crystals, although struck by the difference between the second and the third version . According to the first of the two graphs, there is almost the same difference between them than between soda lime and Gorilla Glass 2 approximately 7 kilos difference .

    In the second graph we see as the difference between the strength for grating 3 vs. Gorilla Glass Gorilla Glass two is about 2 Newton. It seems too …

     Saphire In addition, the last graph shows that, strictly, Dragontrail is stronger than Gorilla Glass , not so much in the case of Xensation . However, none of them approaches the resistance Sapphire can offer. In fact, as we said before, resistance triples its competitors .

    You who think, is the Sapphire the material of the future for mobile screens? Or rather they are flexible displays?

    Article was published in The Free Android (The Android Blog reference. Apps, News , Free Android Games and smartphones)


    The Free Android

    How are and will be the screens that protect our Smartphones?
    Source: english  
    April 29, 2013

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