LG's new foldable display tech reduces creases but is as hard as tempered glass

nanoguy

Posts: 972   +14
Staff member
Something to look forward to: LG subsidiary LG Chem believes it has found a way to make the dreaded crease on folding phones disappear, or at least a lot less visible than it is on current devices. This tech and other innovations can help pave the way for mainstream adoption of foldable form factors, especially since it promises to mitigate an issue that looks a lot like a defect for the non-technical consumer.

One of the most pressing problems that engineers have when designing foldable phones is how to make the display strong enough to maintain its structural integrity and the ability to produce a clear image. So far, the pinnacle of materials science has allowed them to create devices with displays that bend inward and outward without much of a problem for hundreds of thousands of times, but the side effect is a crease in the middle that never goes away.

LG Chem says it may have found a solution it calls the Real Folding Window. It is essentially a new type of cover material for foldable displays that can last just as long as existing solutions while being much thinner and thus much less prone to forming a crease in the area where the screen folds. Furthermore, it should feel no different to the touch compared to the cover glass found on non-foldable phones.

The wonder material is a specially developed coating laid on top of a thin polyethylene terephthalate (PET) film, conferring enhanced mechanical and heat resistance to the plastic. Despite being only a few micrometers thick (thinner than the human hair), the resulting display cover is as hard as tempered glass and cheaper to manufacture than existing solutions based on polyimide (not to be confused with polyamide) film. Over time, the company hopes to remove the need for PET plastic film altogether.

LG Chem claims the Real Folding Window is guaranteed to fold at least 200,000 times without significant degradation. A crease can still form, but it should be much less visible than what you get with current foldable smartphones, where a single day is enough for the display to give birth to a "fold line" in both in-folding and out-folding designs.

The bad news is LG Chem doesn't expect to achieve mass-production capabilities for the Real Folding Window until sometime in 2022, with volume sales planned to begin in 2023. The good news is that we can expect to see the technology come to foldable laptops and tablets.

Permalink to story.

 

p51d007

Posts: 2,850   +2,210
People complained when phones got above 6", but they still buy them.
Personally, I think the folding phones are silly, but, for some they will have a practical use
over carrying a phone & a tablet I guess.
I think folding won't take off until (yuck) Apple comes out with one, then the media, fanboys
will call it the creation of a lifetime. They won't care it will cost 1500-2500 bucks either, because
it will have the apple logo on it.
I would rather have a 6" screen, with a WIDER aspect ratio. Today's phones are too narrow.
My favorite was the Huawei Mate2.
 

ddferrari

Posts: 534   +265
TechSpot Elite
People complained when phones got above 6", but they still buy them.
Personally, I think the folding phones are silly, but, for some they will have a practical use
over carrying a phone & a tablet I guess.
I think folding won't take off until (yuck) Apple comes out with one, then the media, fanboys
will call it the creation of a lifetime. They won't care it will cost 1500-2500 bucks either, because
it will have the apple logo on it.
I would rather have a 6" screen, with a WIDER aspect ratio. Today's phones are too narrow.
My favorite was the Huawei Mate2.
Why is a folding phone silly? I have the Sansung ZFold3 and everyone who has seen it is in awe

If you like a wider aspect ratio, how is a 6.2" screen at double-width NOT your thing?

Don't be jelly boyz, the ZFold 3 is AMAZING. Try it before you armchair judge.
 

ddferrari

Posts: 534   +265
TechSpot Elite
Not really a "new display" when something isn't coming out for two years...

I'm enjoying my Samsung foldable right here, right now.

LG has always been lagging behind Sammy, and this is a publicity grab at best. Waddaya got NOW, LG? Yeah, that's what I thought...
 

cliffordcooley

Posts: 12,993   +6,315
Don't be jelly boyz, the ZFold 3 is AMAZING. Try it before you armchair judge.
I'm not jelly and there is nothing to try before I judge. I use a phone for a phone and nothing else. I'm not going to spend my day looking at a tiny screen, not even your fold-able is large enough. I don't need a massive screen to be happy. But it does need to be farther than an arms length away from my eyes.
 

bandit8623

Posts: 340   +187
Why but?

“… but is as hard as tempered glass…”

Also these phones are disgusting. Imagine holding that phone and trying to look up a website. Jesus..
bro u arent holding the phone open when taking a call... it folds closed. seems pretty sweet. problem is the price
 

Nobina

Posts: 3,339   +3,425
Why is a folding phone silly? I have the Sansung ZFold3 and everyone who has seen it is in awe

If you like a wider aspect ratio, how is a 6.2" screen at double-width NOT your thing?

Don't be jelly boyz, the ZFold 3 is AMAZING. Try it before you armchair judge.
It depends what you buy your phone for. Seems to me you bought yours as a fashion accessory to show off to people and the phone definetely has a wow factor since it's rare to see these phone around. It has terrible value and is not a phone to buy for most people.
 

kiwigraeme

Posts: 551   +425
I've just received rmy set of bionic eyes = brought the deluxe set with all the extras

Remember the main thing is to get the electronic/synapse you can afford -as you can upgrade your eye set later.

A lot of people are getting rgb led ones - I prefer the natural changing iris ones - Paul Newman baby blues , Lion golden, Gary Gilmours - I paid extra and got Rec 2020 full spectrum , full saturation . I know with Bionics you can use a larger spectrum that only specific bionic eyes can see - but I wanted it to be like Natural.- though I did go Manga size

I got the whole spectrum set from Radio waves to gamma - Unfortunately listening to short wave radio is still something I can only do at night as too much interference from the sun during the day.

mmWave can see through clothes - unfortunately not many natural sources on earth - still good to pick up traffic cops radar detectors

Got microscopic through to telescopic - but like VR can be nausea making - again a good reason for getting the best synapse connect up - It's like Binoculars - that first number is important 10-50 is better than 8-50- easier to hold target and more relaxing - I do have AI imagine stabilisation build in . So get a large sensor .

Fish eyes are a novelty - surprising harder to balance when walking - 140 degree POV works for me .

TL/DR - don't need a foldable phone as have bionic eyes - if I use basic radio wave ones with no extra sensors only get 1080p though
 

ddferrari

Posts: 534   +265
TechSpot Elite
I bought it because I travel a lot. It's the perfect companion on an airplane, and with the much larger image I don't need to use reading glasses. It's really nice, cliffordcooley :)

Samsung gave me $700 for my trade-in and a non-expiring $200 credit for their website, so it was $900 before tax... pretty much the same price you'd pay for any flagship phone. They also gave me three years interest-free to pay it off, should I choose to drag it out that long. At $35 a month it's pretty painless.

This gen is waterproof, too. The only downside is that it's fairly heavy.
 
Last edited: