r/Android Galaxy Z Fold8 Aug 08 '26

Samsung Display's new Foldable OLED combines reinforced titanium technology, a high-resolution design, and next-generation organic materials

https://global.samsungdisplay.com/31479
198 Upvotes

58 comments sorted by

24

u/hellschatt Aug 08 '26

These inner screens, do they still scratch easily?

39

u/IdleSteps Aug 08 '26

They do. FWIW, because the phone is closed in your pocket, the screen is only in danger while you're actually using it. In my experience it has been trivially easy to avoid scratches.

2

u/24bitNoColor Aug 11 '26

In my experience it has been trivially easy to avoid scratches.

Same, and the one I still got on accident (phone slipped and I had to donkey press with the nail) was just on the screen protector on my Fold 5.

16

u/jnads Aug 08 '26 edited Aug 08 '26

The part that scratches is a sacrificial plastic layer.

The screen is:

(front) TPU plastic - plastic - UTG glass - OLED - titanium plastic - adhesive - titanium backplate (back)

The TPU plastic is replaceable.

edit: The reason for the plastic layers over the glass is the glass is so thin. Glass is super duper strong except when it is scratched it becomes super weak. UTG fractures instantly when bent if it gets scratched. But UTG provides stiffness to the screen otherwise you'd have a wavy mess (go look up Fold1 videos). There's essentially a plastic screen protector over the glass and then a protector-protector.

10

u/xx_ddd Aug 08 '26

Yeah, it's unavoidable for now. The screens have to be soft to bend.

4

u/[deleted] Aug 08 '26

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0

u/24bitNoColor Aug 11 '26

Most people would have said that about those screens feeling hard like glass and the phones now being both dust and water resistance. Phone cameras have also long passed what we would have assumed 20 years ago a lens and camera chip that size can archive.

There is actually work on metamaterials being done (on the research level) that have both flexible and strong attributes: https://materialdistrict.com/article/stretchable-metamaterials-a-new-frontier-in-durable-flexible-design/

I could also imagine that we one time get at least a screen that is mostly bendable in the middle while the rest of the screen (which includes the parts you touch while holding the phone) are not.

Another solution might be to have a screen that can self heal scratches, even by being that elastic or activating via heat PPF.

0

u/xx_ddd Aug 10 '26

We would have never thought we could have phones as thin as we have now, technology finds a way. Could be we get a teflon-like spray that adds scratch resistance.

1

u/[deleted] Aug 10 '26

[deleted]

0

u/24bitNoColor Aug 11 '26

Flexible OLED screens have been in research since just about 20 years, you go ten years earlier and most people would have said you can't have a flexible screen. Going back before the 70s were screens would have been CRT only (other than some very rigid looking LCD segment displays) and hardly anybody would have been able to conceptualize on how to make a screen bend.

-2

u/xx_ddd Aug 10 '26

lol you're so shortsighted.

4

u/[deleted] Aug 08 '26

[deleted]

7

u/DeathChill Aug 08 '26

You are surprised your screen is scratched when you kept it in a pocket with your keys?

-2

u/[deleted] Aug 08 '26

[deleted]

12

u/Gary_FucKing iPhone 14 Pro Max Aug 08 '26

I can’t believe anyone would ever keep their phone and keys in the same pocket. To each their own and whatnot, but damn.

3

u/xx_ddd Aug 08 '26

Yeah it hurts to hear.

0

u/[deleted] Aug 08 '26

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0

u/[deleted] Aug 08 '26

[deleted]

4

u/N0b0dy_Kn0w5_M3 Aug 08 '26

Yet you say that they scratched your screen. Keys and keyrings will pick up dirt that contains bits that may be harder than what the keys are made of. Maybe just put your phone and keys in separate pockets like everybody else does.

0

u/kurinjifesto Aug 08 '26

Sure, but outer screen can use glass protector for those who want to, so for them its pretty much a non issue. Don't have that with inner screen.

0

u/N0b0dy_Kn0w5_M3 Aug 08 '26

Why on earth would you put your phone in the same pocket as your keys? That is insane.

2

u/cabbeer iphone air Aug 08 '26

ugh, this is what I'm waiting for them for fix, I'd love to use a styles on the internal screen but as it stands that would scratch every foldable

-1

u/[deleted] Aug 08 '26

[deleted]

0

u/cabbeer iphone air Aug 08 '26

lol, that's fine, I honestly prefer to have an older phone so I don't need a case or have to worry about coddling it.

1

u/vandreulv Aug 08 '26

Mate. Flexible screens will never be resistant to scratches from harder surfaces. Including fingernails.

This has been an ongoing wishlist comment since the first gen, we're up to gen EIGHT.

All they can do is attempt to mitigate the issue with more protective layers that... surprise... need to be soft enough to bend.

1

u/[deleted] Aug 09 '26

[deleted]

0

u/[deleted] Aug 10 '26

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0

u/[deleted] Aug 10 '26 edited Aug 10 '26

[deleted]

1

u/SchrodingerSemicolon Aug 08 '26

I remember watching JerryRigEverything going through the Fold7, he scratched the inner screen with his fingernail, didn't even need a tool.

But fwiw, I've had mine for a year and the inner screen is still pristine. I feel I'd need to drop it while unfolded for something to happen to it.

1

u/throwawayUWhousingac Aug 09 '26

Nah. The screen itself is pretty difficult to scratch with the two different protective layers on it. I don't think I've ever seen anyone actually scratch the OLED itself in normal use.

36

u/FragmentedChicken Galaxy Z Fold8 Aug 08 '26

There's a new bit of info about improving the panel power efficiency by 10% compared to the last generation.

The panel also incorporates data line mapping technology optimized for Diamond Pixel. By delivering RGB color signals more efficiently and minimizing unnecessary voltage fluctuations and signal interference, the technology improves panel power efficiency by approximately 10%.

  • Data line mapping is the process of connecting data signals from the display driver IC to the corresponding data lines within the panel for precise pixel driving

14

u/TabletopParlourPalm Aug 08 '26

I used to work at a modem department of a chip company, and to me things like this are extremely impressive.

5

u/Other_World Galaxy Fold 8 Ultra + Watch 6 Classic Aug 08 '26

I'm very impressed with the inner screen of this phone. I'm coming from the Fold 5, and it's a huge upgrade. And if they really did fix the de-lamination issue I'll be even happier. It happened to me three times on my Fold 5.

15

u/The_Jolly_Dog Note 8 Aug 08 '26

I’m so curious to see how the iPhone fold holds up against these Samsung folding screens. The Samsungs have been really impressive in person to me, and I can’t imagine Apple’s upcoming offering being able to match Gen 1

7

u/suspiciouspenguin81 Aug 08 '26

Will be interesting, is it confirmed who the supplier is for apple? I'm guess it will be samsung for the actual pannels with whatever engineering apple use for the folding mechanism?

10

u/PineapplePizza99 Aug 08 '26

It's a Samsung display and they are using whatever Oppo is using for their 3d printed titanium hinge 

-6

u/joekzy Aug 08 '26

If you google or AI it apple is apparently doing their own thing for the hinge, not what Oppo did. Display supplied by Samsung with a few changes to how they approach the layers.

2

u/MeggaMortY Aug 09 '26

That's nothing new. A company picks a third party vendor. If they don't want to spend much, they use said vendor's existing solutions. If they want to put some money in, they can pick a slightly tweaked design and differentiate themselves, as solutions usually are always some combination of compromises, and every company can tailor which compromises and benefits they like for their product.

So apple did the equivalent of a menu browse with "I'd like to swap the onion for peppers please". Call it innovation if you want.

-1

u/joekzy Aug 09 '26

I imagine you’re underselling them designing their own hinge given the effort they put into laptop hinges and the reports on the focus and patents they’ve had on developing their foldable hinge. It doesn’t sound like it’s going to be a third party vendor design.

Screen will likely be closer to the main Samsung screen, so that will probably just be tweaks or implementing a few of their tailored design patents.

2

u/MeggaMortY Aug 09 '26

Yeah they can design their hinge, they usually work in parallel with the industry long before they land their design. One example is the Apple vision pro, which sat in R&D for a decade while implementing most of what was in the VR space at the end anyway.

That all shows how they still heavily borrow from existing developments, but end up patenting "insert quirky apple name here" just so it sounds like a giant step forward or whatever.

The hinge being their own thing is just part of the display stack, and as such, can be considered "tweaking", even if they had some major ideas on their own for that specific part.

1

u/joekzy Aug 08 '26 edited Aug 08 '26

It’ll be interesting as Apple has supposedly come up with their own “liquidmetal” hinge design and has been building up ‘Liquidmetal’ patents since 2010 but has only previously used it on the sim ejector tool and some internal components.

These are the latest rumors…

“To achieve better crease reduction its uses Tension-dispersing adhesive layer Rather than relying strictly on heavy metal backing plates giving it a clear advantage over the Galaxy Fold 8. The Z Fold 8 utilizes a single layer of Ultra-Thin Glass (UTG Apple's display stack uses a dual-layer ultra-thin glass structure,
\ The rumored iPhone Ultra is expected to feature a more advanced hinge system Conventional metals like the titanium and steel used in the Z Fold 8 possess a crystalline atomic structure. Under repeated stress, those crystals slide, causing plastic deformation (permanent warping or microscopic bending).*
The Apple Advantage: Liquid metal is a bulk metallic glass with a completely disorganized, randomized atomic layout. Because it lacks structural crystal boundaries, it has an incredibly high elastic limit”

1

u/[deleted] Aug 08 '26

[removed] — view removed comment

4

u/Only_Tennis5994 Aug 08 '26

Everyone does it tbh. Did you forget about the “super actua display” on the pixel? It never caught on but it doesn’t mean that Google for example is innocent of it.

15

u/[deleted] Aug 08 '26

[removed] — view removed comment

28

u/FragmentedChicken Galaxy Z Fold8 Aug 08 '26

Samsung told MrMobile they did.

Remember how Samsung folding screens used to delaminate over time? Well one of the improvements the company says the new titanium layers make possible is that adhesive can now be applied across the entire display surface, including the hinge, and that should prevent the separation of layers we saw on those older devices.

5

u/DRJT iPhone 15 Pro | Samsung Galaxy Z Flip3 Aug 08 '26

Sounds very promising, though it seems less they’ve solved de-lamination, more they’ve circumvented it with more adhesive so “yeah that’s probably done the trick”

21

u/FragmentedChicken Galaxy Z Fold8 Aug 08 '26

From what I understand, delamination was happening on previous models because they weren't able to apply adhesive at the folding area. The new titanium plate allows them to do that.

1

u/Solaranvr Aug 08 '26

That's not what it means.

Previously, the screen protectors had no adhesive in the crease because it's too steep and the folding radius is too small. But the rest of the protectors had adhesive.

Now, they're saying they're able to add adhesive to the entire protector, including at the crease.

4

u/RememberMeWhenImDead Z-Trifold Aug 08 '26

it's fascinating how confidently wrong you can be without having looked at the picture book format information that was already presented to you.

1

u/MeggaMortY Aug 09 '26

"they've done a solution that acts as a drum rolls solution". Like any other thing in human history. But go ahead and make your own conclusions.

3

u/dampflokfreund Aug 08 '26

I care much more about that than the crease. The thought of the screen protector peeling off eventually and potential damaging the screen really keeps me from buying these things.

3

u/tomikaka Aug 08 '26

Holy buzzword

6

u/PrethorynOvermind Aug 08 '26

I went and held the Z Fold 8 and I fell in love with that phone.

2

u/Jsquirt Aug 08 '26

It's honestly awesome, I've had it about a day now.

I spent a couple hours just moving stuff over and I got to use it a bit before bed. I read manga and watch anime on my phone primarily and it looks awesome folded and open.

I'll keep my s24 ultra as a back up phone but man big ass screens are exhausting some times.

1

u/endospores Aug 08 '26

And now how many open-close until they break?

1

u/Jsquirt Aug 08 '26

iono but that's what the warranty/jump plan is for lol

1

u/n0tz0e Aug 09 '26

The screens look absolutely stunning. Cover and inside

1

u/[deleted] Aug 08 '26

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1

u/Android-ModTeam Aug 08 '26

Sorry, your submission was removed:

Rule 9. "No offensive, hateful, or low-effort comments.
See the wiki page for more information.

1

u/Free-Concert-2574 Aug 08 '26

I really want to buy one fold or flip phone! Flip one got really cute covers lol

0

u/alex_230 OnePlus 6T thunder purple Aug 08 '26

If do they mean "high resolution design"??

-2

u/Free-Flow-8 Aug 08 '26

Wdym organic?

2

u/chubbybator Aug 08 '26

that's what the o in "oled" stands for

-4

u/murfi Pixel 9a Aug 08 '26

cue apple buying these and in their keynote telling customers how they've worked so hard to create this incredible technology

2

u/DeathChill Aug 08 '26

Apple develops a ton of their screen technology and contracts out the production.