Is that this display screen three instances more durable than new iPhone 12? Apple’s rival says sure

The iPhone 12 is the primary system to make use of this specific kind of ceramic glass on its display screen.

James Martin/CNET

No sooner has the mud settled on CNET’s jaw-dropping iPhone 12 drop test than one other rival has stepped as much as declare its different “glass” for shielding electronics like telephones and smartwatches is thrice more durable than Apple’s new ceramic shield. Why? As a result of it is fabricated from diamond. Particularly, diamond glass.

Let’s again up for a minute. The iPhone 12 makes use of a brand-new materials to guard its delicate show (that is the panel beneath the “glass” that lights up the pixels you see in your display screen). Known as “ceramic shield,” the brand new glass topper is made by Corning, the identical firm that makes the brand new Gorilla Glass Victus cover material used on Samsung’s Galaxy Note 20 Ultra

Apple, which labored with Corning to formulate Ceramic Defend just for the iPhone, claims this substance is “more durable than any smartphone glass.” Based mostly on the outcomes of our drop check, that might effectively be true.


Miraj Diamond Glass seems like “common” glass.

Akhan Semiconductor

The ceramic protect is a kind of translucent, chemically strengthened glass that is superheated till it is extremely arduous. So what’s diamond glass? From the samples we have seen over the last several years, diamond glass can be simply as clear and reflective as you’d need from the highest layer defending your electronics. 

However because it’s made out of crystalline diamond, one of many hardest identified buildings, producers have seemed to the substance as an alternative choice to “common” glass, which may nonetheless crack, break and scratch regardless of its power.

This materials particularly, known as Miraj Diamond Glass, makes use of lab-grown diamond nanomaterials which might be so extremely small, they are often sprayed in an ultrathin layer on prime of both glass or plastic to make a a lot more durable floor. In concept, Miraj Diamond Glass could even top ultrathin foldable glass like the type discovered on the Galaxy Z Fold 2.

On paper, diamond glass is inherently more durable than ceramic glass just like the iPhone 12’s ceramic protect and Schott Ceran Miradur, which is used on cooktops, just because the properties of diamond nanocrystal will rating greater on industry-standard scales of hardness and pressure than ceramic glass. Schott’s web site even claims its ceramic glass is “almost as hard as a diamond” (my emphasis).

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To show the benefit of its materials — which isn’t but accessible in a industrial product — Akhan Semiconductor commissioned a lab at Northwestern College that works with nanotechnology to make use of microindentation testing, a regular option to look at a cloth’s hardness at a microscopic stage, utilizing an indenter software made out of none aside from diamond, one of many hardest supplies on Earth. 

The outcome? The declare that Miraj Diamond Glass cowl materials sprayed onto ceramic glass is over thrice more durable than any ceramic glass alone might ever be — together with the iPhone 12’s topper. (Based on Akhan Semiconductor’s graph, under, ceramic glass measures not more than 10 Gigapascals, a unit of strain, in comparison with diamond glass, which measure over 36 Gigapascals.)

However this is a catch. The lab’s microindentation check occurred earlier than Apple launched the iPhone 12, which signifies that the declare stays theoretical for now. The true check can be a one-to-one comparability of Miraj Diamond Glass and Corning’s ceramic protect on the identical system — on this case, two iPhone 12 gadgets, one as is and the opposite coated in an additional layer of hardened diamond mud.


A visible scale of fabric properties for “hardness,” as measured by gigapascals, a unit of strain.

Akhan Semiconductor

That stated, a microindentation check is just one measure of hardness, and one option to check all-around sturdiness and power. Drop exams, scratch exams and different torture exams would paint a extra full image of how diamond glass would maintain up towards your actual life accidents and abuses, together with drops, scratches and other forms of bodily or temperature strain.

We all know {that a} materials itself could behave a technique when it is a flat rectangle on a bit of metal. However placing it on a tool that curves, bends and stretches in spots can even change the forces that trigger a cloth to behave a technique or one other. 

That is one purpose why the corners of a cellphone display screen usually appear extra prone to cracks and scratches, and it is what makes these actual world workouts so necessary. Diamond glass has been one promising glass different for the final a number of years. However till it sees daylight on a industrial system, it will not have an opportunity to really shine.

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Anil Kumar

Anil Kumar Gadgets writes for Review Tech smartphones, wearables, headphones and speakers based in Delhi for 360 Tech News. Anil Gadgets is a reviewer for 360 Tech News and has written in detail about smartphones, software updates and upcoming devices.

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