What's Inside a Flexible Phone Screen? Flexible AMOLED teardown
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- Опубликовано: 18 сен 2024
- What happens when you break a $500 flexible screen? You take it apart, of course! Let's take a closer look at how this AMOLED flexible phone screen is put together.
Go watch the video where I broke this screen: • A folding iPhone?
Links for more info:
Screen datasheet: www.panelook.c...
Gigadevices flash memory IC datasheet: www.endrich.co...
Linux and android source code for this screen:
www.mail-archi...
github.com/rea...
RFID video with more info about ACP/ACF: • How I Made My Own RFID...
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Subscribe to Strange Parts Live to see recordings of past live streams: / strangepartslive
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#StrangeParts #Teardown
Agreed.
Yeah he should upload more videos but I get it one man video is hard
@@MyChrisable a
"I'm not an AMOLED expert"
Starts hacking and guessing what bits are what 😂
More videos please Scotty... God I've missed your face and crazy shenanigans 🤍
Pretty wild stuff. Makes me wonder as we go from nano to pico, what a time to be alive! You could literally watch this under a microscope and not notice the camera powered by flex looking back at you...
In a lot of technical fields I can read about something for 1-3 days and appear as an expert to most people but I find the more stuff I learn and the more complex the topics, what I consider as being an expert starts to shift. I don't think it is fair for me to say I am an expert after I look at something for about a week, maybe make a cruddy version of it myself even. Scotty probably feels similarly.
Those unused "large" connectors on the screen might be test points for testing during manufacturing before the screen is bonded to the flex control board.
Yeah, I was thinking that too...
This is How We Makers Learn! Great video!
Thank you Scotty for heart!
And also thanks to 27 people liked :D
At 4:19, there is a crack right through the driver chip. I would hazard a guess that that's how it failed. It could have happened later on, but it did make a distinct crack sound in the video when it failed!
Maybe the actual screen is more durable than it seems and it's just the driver chip you need to be careful with.
The crack is already there at 3:50 and even at the begining at 1:50. Or are you talking about a different video in which the screen failed (and you could here the crack there)?
EDIT: Just watched the first video on these screens. I could be possible that he snapped it in half with his finger while holding it.
@@dannulik Yes, that is was what I was thinking. I think he was bracing the assembly with his fingers in roughly the location of the chip while flexing the screen.
Good spot
Yes, this is totally it! I don't know how I missed this before. Good catch! I just shot a closeup of it - I'll post it as a community post on the main channel. With proper attribution of course :D
"I don't wanna break the whole thing" He says as he cuts the display in half with an X-acto 😂
I wonder if you could soak the display in acetone or IPA or some other solvent to try to separate the layers? Don't know if the actual structures would survive but maybe worth a try.
"This must be a uwghuwefu"
Me: Yes yes indeed
Would be interesting to stick some fine probes into that and see if you can get the various colors of organic LEDs to light up. You can get 1um diameter tungsten probes on eBay. I'm guessing pixel pitch is of the order of 50um so that should be fine enough to do something.
Got here because I was replacing my son's Note 20 screen. Was doing a full screen/digitizer replacement even though it was just the glass and not the display messed up. When I went to pull it out of the frame after heating up, the glass came right off with the first layer of tint. I was surprised by the flexible shiny part that was left trying to figure out how it displayed an image since the other part was just like tint on the glass. You were the first video I could find that actually showed a screen.
Everyone please support the "Let's get Right to Repair passed!" gofundme from Louis Rossmann, even if you just share it and let people know
about the issue.
Imagine the effort, a 500 bucks screen for this kind of content.
I am shocked - positevely, to get nitification from Scotty glad to see everything is good and that you are ok :) Keep on posting brother
Thanks Scotty - I am an engineer and still constantly amazed at how small things are made now. I don't think that most people realize that there are rows and columns of micro-wires connecting to EVERY pixel on their phone or computer screen, and every pixel has a tiny transistor driving it and tiny chips addressing every wire! Asus has a great animated video showing how LCD screens are made - perhaps you can return to China (some day) and show how these screens are made!
I was under the impression that OLEDs don't have color filters, but each pixel does different wavelengths and that's why they're differently sized since blue pixels lose brightness quicker than the others.
I think this is an amoled which might be the difference
Yeah I'm pretty sure you're correct
This is correct when it comes to phone amold screens: No color filters. LG's TV panels have white OLED subpixels with color filters though.
Really interesting and great to see you in youtube again, keep up the good work!
Nice look into the flexi-screen!
Missed the times where u were sourcing parts in China for your DIY iPhone variants.
Hope we could see that soon in future!
Good to see you Scotty.... Was getting worried about you
Your videos are so interesting. Thank you for taking this apart. It’s so interesting. I would have never done it if it was $500
Super excited To see how you make that thing possible,
just love your videos
I'm fairly certain you were looking at the actual pixel elements, not color filters. In general, "small" OLED displays as found in phones and similar devices are RGB OLED, where each subpixel is an actual red/green/blue OLED element. Especially reinforcing this is the fact that each sub-element shown has a different size/shape to try and compensate for the brightness and lifespan differences of the different OLED colors. "Large" OLED displays as found in TVs instead have each subpixel be a blue+phosphor "white" LED with a color filter over it.
The color-filtered ones are easier to make last a long time and degrade in brightness at even rates since they use the same longer-lasting pixel elements throughout, but they waste a lot more power. Since phones generally aren't left on as long or as bright as TVs, they can get away with using actual red/green/blue OLEDs so that they can cut the power consumption substantially by avoiding the use of light-wasting filters.
One does not simply mention a scanning electron microscope.... without elaborating a bit. Pleeeeaaasssseeee Scotty ? 😁
He unboxed it on stream a few days ago. I still havent managed to watch it completly, but im gonna leave this here for you ^^ www.twitch.tv/strangeparts/v/942280435
@@daniel62015 thanks a lot man that was awesome! I had no idea something like that existed. I gathered a few thousand dollars worth of components to repair and operate a used scanning microscope that I got for a sweet deal. Following a lot of the steps from the “applied science” RUclips channel. But man it’s going to be a real pain in the ass and take up a ton of space. However looking at these “cheap and small“ microscopes… They’re still $60,000. I was hoping more like $10,000 😂
i love when the oled just snaps and he's like ooh......
Caption would have been "Anatomy of a dead flexible screen"
The long Silicon bar you are talking about is a COF (Chip On Flex) which drives the screen.
Awesome video! Zack breaks phones, you hack them up even more! Can't wait to see what every little phone part looks like under an electron microscope 👍
Can you take a look at 10,000PPI displays at some point (model#: *JBD25UMFHD* )?
Well the yellow this is a kinda glue that the TFT is settled onto and is poured over the substrate essentially making the TFT, substrate one single layer on top of that is another organic layer which is what you peeled off and the top part was the cathode according to my knowledge of amoled screens and more importantly I don't think so it is an amoled screen, since amoled screen are usually square and that looks like it's an regular LED screen .
Another fascinating video from the nicest guy on RUclips
that was so mindblowing damn. It's all so tinyyy
Wow have I missed this impressive work you do. Keep it up Scotty be safe.
StrangerParts quickly became JerryRigEverything 😂
It would be interesting to see the difference between this and a transparent OLED. They are not nearly as expensive because in screen fingerprint readers are common on cheaper phones now. But they are rigid.
Did you know you can replace that driver? I have a video doing it. I received training in Guanghou to do it. Buy the COF and replace it with a giant machine (HR 8800) I can save you the research and show the company to you. Maybe you get it back running unless you already destroyed it completely. Good luck and great job, been following you since forever. Got so stoked for you when you collabed with Linus, I was in Shenzhen at the time too!
Oh. now i watched it fully. You could've asked the seller of the display to get you a replacement COF from their supplier. I guess you explored that also.
Scottie, I was wondering if you could share which microscope you’re using for this footage. Glad to see you back!
Definitely a software guy. The "I don't knows" outnumber the information.
ITS TIME. Damn I was stoked for this one.
Really interesting! Thanks for sharing Scotty.
Thanks was an eye opener. Learned something today.
I LOVE the microscope shots!
Great video. I learn something new today what is inside!
this is great! small suggestion, can you try reducing the movements of the piece under the microscope? I know it wouldn't have been easy with this being flexible and shiny, I think it runs the risk of being a bit jarring to watch when it's jiggling around! keep well, stay safe
"I broke this screen"...
Me: "I broke this... That's it, I just break everything." XD
You make the best youtube videos
You are recording your microscope with a camera and esp32? Super cool video
7:59 ok Shrek, there's layers. 😂
15:14 I am impressed too
scotty should get a keeps sponsorship, im not insulting his hair, but i feel like with his audience, and himself there is plenty of hairpulling happening
It would have been interesting to compare to a standard OLED display. How different they are. Also, What is the ESP32 on top of your scope fore?
My guess is he's using it to stream a video feed of the microscope to his computer for either recording or further streaming on twitch
The ESP32 is used to automatically switch between overhead camera and microscope cam
Great teaching. I had a great learning here. 👍👍👍👍👍👍👍👍👍👍👍
i suggest you to use a table with white color so that parts are more visible clearly
@strangerparts I challenge you to making a simple touchscreen! That would be cool. Even like a 4 pixel/led non-touchscreen.
great vid, cant wait for more. keep it up. stay safe!
Amazing video! You are revealing the tricks of things most of us see as magic
what is that hooked to ur camera is it a ESP8266 that is sending the video stream to a phone or pc?
You're getting an SEM?!?! That's pretty awesome. I hope you also have a sputter coater if you're going to look at that display (assuming your not using a low vacuum/environmental SEM). If you need any help with using/setting up the SEM, let me know. I have quite a few years experience in election microscopy field service and could give you some pointers over video chat if you want. I'm looking forward to seeing what you use the SEM for.
You have a SEM coming ? is that an ESP32 + camera on top of you optical scope please ?
This reminds me of the screen I replaced on my Samsung M31. I dropped the phone and smashed the screen, and after trying to cut the glass off using a fine wire, I destroyed the screen and had to get another. Once the glass is removed, it looks just like your flex screen. Conclusion: a flex screen is just a amoled screen without the glass and maybe some protective layers?
Oleds dont have colour filters im pretty sure! The pixels themselves are all that make the screen. Also the edges are non existent because its a edge curved display and unlike lcd screens where its software to cut the edge out oleds literally have can be moulded anyway, just look at the iphone 12 pro max for instance, extremely rounded edges and a huge notch cutout.
Great content as always.. Cheers scotty..
Heck of a video man
blows my mind that there is literally whole factories dedicated to stupidly specific microscopic chips.
and im super interested in the design process of a screen like this... Like how on earth you know what pieces to look for and how to arrange them
Would be nice if you could use some tweezers instead of your fingers to point to stuff next time you're using a microscope, other than that great video
Salute to Samsung for this incredible technology
This is just mind boggling how they came up with this idea
What does the esp32 do on your mikroskop?
It's a scene switcher for use during the livestreams on Twitch! The esp takes a signal from a photodiode when he looks through the microscope and based on the signal (light = not looking, no light = looking) the esp changes the OBS scene and switches the view on twitch so chat can watch along.
@@benstewart7453 ty
Hi! Thank you for this great video as always! Do you think you could find a way to display the current scale on the microscope camera? I think it would be very useful. Can't wait to see what you're gonna do with the other screen!
You my friend are the best. Stay safe.
Seeing how fragile an amoled screen.... now i have to be super careful to my screen
Do you have a video on your microscope camera? Looks like an ESP32 on a breadboard and I have so many questions!
@7:47 and 7:52 there is something that looks like a QR code. I tried scanning it, but couldn't gat a good read on it.
I bet if you reached out to Louis Rossman he could put you in contact with someone that could get you schematics for the screen.
Were the first samples of graphene not found on the sticky side of some tape ?
Maybe try that to isolate the layers ? >:)
Its a light sensor on the micro's viewfinder? Its for recording only when you watch?
It’s for automatically switching to the microscope when I’m live-streaming
@@strangerparts cool idea
If a normal man would realise the toughness of screen manufactures they will definately stop complaining about resolution
Cool, they're like cellophane but they're US$500 :-)
Fingers to point at things under a microscope are not effective (judging by the thumbnail you figure that out later in the video).
Great video though so far :)
Thanks 👏
Watching a dissection of a foldable screen. On my foldable Z Fold 2.
What about flexible OLCD?
I think the manufacturer of the COF is Silicon Works, a Korean company - but I can't find any product listings for them at all, let alone datasheets.
Why is there an nodemcu ESP8266 on top of your microscope?
10:50 Hey!. What apparently you have connected to the microscope is some kind of nodemcu!? ... what does that do there? whats the function??
Scotty, I don't think the screen itself broke. I watched you other video and it looks like you put stress on the long silicon chip and cracked it. That is instant death. Look at your video at around 3:45. You can see the crack. I suspected that was the failure and when I watched the instant it stopped working in the other video you may have been holding the end of this chip as you bent the screen putting enough stress to crack this chip. It doesn't take much force.
Yes, this is totally it! Good catch! I don't know how I possibly missed this. I just shot a closeup of it - I'll post it as a community post on the main channel. With proper attribution of course :D
These oled panels are definitely from boe, when I saw the Zhou Dong Yu pixel arrangements
Could isopropyl alcohol damage the screen itself? I used it while replacing my phone battery and the OLED slowly degraded and died 3 days later.
Wow you need steady hands to look at those!
I suspect that screen isn't a true flexible AMOLED screens, instead, it's the AMOLED later before it is bonded to the stiff screen for strength and protection from bending - if you flex regular AMOLED screens, you'll notice they also have some flex to them without breaking the AMOLED layer, until the stiff backing breaks and causes a sharp bend that breaks the entire display
What is the purpose of the microcontroller on top of the microscope?
I can see the LDR .
Nice!
Hey Scotty what are the electronics on top of your microscope?
hi scotty, i hope you doing well, could you please enlighten for us the ESP32 that is on your microscope? thank you
Very cool!
after watching the livestream, these videos aren't the same anymore
Aren’t there soft oled screens available for the iPhone specifically? What about taking the cover glass off and replacing it with something flexible
Love your videos 😀👍👍
reminds me of core memory
Technology is great...when it works!
Those are rounder corners. I guess there so small they don't matter.
Can we replace a 5" HD screen to 7" or 9" FHD screen?
That is can we convert a smartphone into a table.. if yes plz share your thoughts...🙏
Scotty, what's the ESP32 doing on top of the microscope camera?
8:40
NO that is NOT how OLED works
Light emitting polymers are 3 color RGB and with WOLED there is also the white one for every 3 clor ones.
There are some versions that use white oleds and color filters but that would just destroy color space and that is where OLEDS "shine"
Actually at 9:33 you can see the colors... and NO it iis NOT THE COLOR FILTER it is the SUBPIXEL's actual color - also there are no LEDs
Why is blue big? THats the only problem (other one is burn in but that is not really OLED problem) OLED screens have that still isn't solved and it was there since 2004... blue LEP has short lifetime...