Galaxy Fold’s bendable screen is still flawed. Is diamond glass the solution?

A foldable phone display screen created from glass is simply a matter of time.

Angela Lang/CNET

Foldable phones just like the Galaxy Fold have an enormous drawback — the display screen. Today’s telephones use plastic cowl supplies, however bendable glass is the Holy Grail of foldable phone design due to its potential to repel the injury from informal scrapes sustained by polymer. Without a inflexible prime layer, the phone’s inner workings are prone to breaking. One firm I spoke with final week at CES thinks it is discovered the reply: diamond glass.

Turns out, holding the fragile, versatile digital show beneath the floor secure from strain, water, mud and sharp objects is troublesome when you do not have a tough materials to guard it. Samsung bore the brunt of this actuality when its Galaxy Fold sustained several types of screen damage earlier than the Fold formally went on sale.

But diamond glass is tough, mentioned Adam Khan, founder and CEO of Akhan Semiconductor, which is creating Miraj Diamond Glass, and might be fully foldable. “Nano-diamond is actually semiflexible by itself, and we can coat flexible glass,” mentioned Khan.

Miraj Diamond Glass is a fabric created from lab-manufactured nano-diamond supplies. It’s sprayed onto a floor in a layer that measures simply 100 nanometers, or 1/10,000th the thickness of a strand of hair. Diamond glass can coat both a plastic (polymer) sheet or a slip of untreated bendable glass.

Motorola Razr Foldable Flip phone

Foldable telephones just like the Motorola Razr use plastic screens and reveal a crease on the bend. 

James Martin/CNET

With their excessive costs and untested designs, foldable telephones are a tricky promote as is. A powerful cowl materials to guard towards drops and scratches might assist shift foldable telephones from costly curiosities to critical merchandise that might at some point change your conventional shingle-shaped phone.

Akhan Semiconductor is not the one firm working towards a stronger materials for foldable telephones. Gorilla Glass-maker Corning confirmed CNET glass that’s thin enough to fold without breaking, nevertheless it’s nonetheless in improvement and is not commercially obtainable. 

If it had been, we might see much more foldable telephones in the present day. Without a prepared provide of glass skinny sufficient to fold in half and powerful sufficient to not crack, splinter or break, device-makers have had to decide on whether or not to attend for a brand new materials or work with what they’ve.

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The bendable glass that’s shaping as much as cowl foldable…


Diamond versus plastic: Is all of it it is cracked as much as be?

Apart from being one of many strongest substances on Earth — diamond glass reportedly withstood lasers in a recent demo with Lockheed — diamond crystal won’t endure the identical ugly display screen creasing that seems the place the Galaxy Fold, Huawei Mate X and Motorola Razr screens bend in half.

“It’s a conformable coating, so you won’t lose any of that foldability. Things that we’ve heard from the OEMs are that they would actually like it because the [typical] glass as it is isn’t strong enough in a foldable context, so this should really go toward strengthening that structure,” Khan mentioned.

Miraj Diamond Glass can also be designed to coat a foldable phone’s chassis, so producers could not want to make use of heavy, cumbersome metal reinforcements throughout the machine to help a superthin display screen on prime. 


Miraj Diamond Glass seems like common glass, nevertheless it’s treaded with a nano-coating of diamond crystal.

Akhan Semiconductor

The materials additionally repels water and floor oils with no need an extra oleophobic coating typical of phone supplies like Gorilla Glass, Khan mentioned. In addition, diamond glass dissipates warmth to maintain phones operating cooler, which in flip might extend the battery life of units that use this substance.

Here’s the clincher: Khan says his firm will not cost extra for a diamond glass remedy than Corning would for Gorilla Glass. Khan did not reveal pricing and Corning didn’t reply to a request for remark.

Still, there could also be cause for some phone-makers to choose plastic over glass. Naysayers level out that diamond glass and sapphire crystal, one other substance that is been recognized to cowl iPhone digital camera lenses, may be robust, however could also be more brittle than Corning’s chemically strengthened Gorilla Glass.

Plastic will also be handled, just like the exhausting coating Motorola selected for its foldable Motorola Razr.

“When glass fails, it shatters. When plastic fails, it scratches,” mentioned Tom Gitzinger, director and principal engineer of innovation and structure for Motorola, after I went to see the Motorola Razr in Chicago forward of its official November launch. 

Motorola gained expertise working with a hardened plastic topcoat for its Shattershield cowl materials on earlier Motorola Droid telephones, like 2017’s Moto Z2 Force, which tore, but didn’t break, after I dropped it 28 times.

Diamond glass in 2021, however have not we heard this one earlier than?

This shouldn’t be the primary time I’ve sat throughout from Khan in a nondescript Las Vegas lodge room. CES 2017 was my first introduction to Miraj Diamond Glass. Three years in the past, a assured Khan promised that we might see a phone protected by diamond glass by the end of that year. At CES 2018, he pushed the goalposts again to the tip of 2019, however averred there was an exclusive phone-maker on board.

Now, on the daybreak of 2020, Khan and I met once more head to head. Perhaps somewhat extra salt streaked his unfastened black hair, maybe his voice was somewhat quieter within the stillness of the in any other case unused room. But Khan’s cheery confidence remained.

I needed to ask, what occurred to these guarantees? Is diamond glass actual, and what concerning the software with foldable telephones? 

The holdup was two-fold, he mentioned. The high quality wasn’t fairly there, which despatched the corporate again to fine-tune the product. Then the unique partnership fell by.

“There’s been some changes in the OEM world and certain partners we were moving to be with are no longer — they were in the space and then they dropped out, so we haven’t picked on to cross the line yet, but we’re still working with the vast majority of the OEMs,” Khan mentioned. 

Producing sufficient diamond glass to cowl a big quantity of telephones can also be a problem, however one Khan thinks he is discovered a manner across the subject by working with a glass substrate, or sub-layer, that an OEM has already ordered — as an alternative of attempting to coat a smaller subset of glass or plastic panels in-house.

You cannot order 100, you order hundreds of thousands,” he mentioned.

As for foldable diamond glass, the corporate remains to be a methods away. Miraj Diamond Glass will not be prepared for a versatile glass demonstration till the following era.

So even when Akhan Semiconductors does safe an unique phone accomplice by the tip of 2020, and even when we do not see that phone till 2021, a diamond glass display screen on a foldable phone might nonetheless path versatile glass by years. Even so, it might be a superb check of energy that I, for one, am raring to see.

Originally revealed earlier this week.

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Tarun Banerjee

Professional Web Designer & Developer,Expert in SEO & Digital Market, Founder of Tech Hunt.

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