Destroying a QD-OLED (Samsung S95B) - Part 1
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- čas přidán 24. 07. 2022
- Teardown of a Samsung S95B QD-OLED TV with spectral analysis of color and piece-by-piece disassembly. Part 1 of 2.
Part 2 is now live!
• Destroying a QD-OLED -... - Věda a technologie
I had three different 55" s95b. All of them had a couple of what at first appeared to be dead pixels, but once I looked at them under magnification I found they were missing green quantum dots. I found it strange that this occured on 3 different displays. Each of them also had bends in the panel straight out of the box. What your doing is so cool! Im seriously captivated and cant wait for part 2!!
Interesting, do you have photos of the missing QDs? I would love to know more.
@@NanoPalomaki i think youtube auto deleted my imgur link to the pictures. I hope you got it.
Nope, I did not.
@@NanoPalomaki i sent them to you on twitter, also sent some pictures of the bends I had in two of my s95b.
Just got an S95B and found what looks like a magenta stuck pixel. With my macro lens, I saw that the green was not lit up, only red and blue - you can see the position of the green subpixel - a dark green square, but it is not lit up.
I absolutely love this sort of content, seeing how things work inside. Keep up the good work!
Thanks, will do!
Very interesting. I have a 65” S95B that I bought in April and I love it.
Thank you for this very useful insight into the new Samsung OLED TVs!
Very interesting content. I'm waiting for your next ones.
Subscribed now.
This is content I didn't think I'd see since TVs are expensive and I am really curious about their insides!
That's why I'm doing it, to learn something!
I feel for you damaging such an expensive TV, however this was the first opportunity I had to see inside (especially interested in the electronics) so totally appreciate you doing this. You deserve a lot more subs to pay for the tv! The sound is extremely impressive on this TV, particularly the bass. I'm also interested in the placement and size of the speakers (I thought there were 6 according to the description on the website?). I kind of wish Samsung had made the back of the panel more robust, I've no idea if I ever had to move this set how I'd do it - probably buy a huge sheet of wood and strap it to it! Looking forward to a closer inspection of the electronics boards! :-)
Do you know if the protocol to light the LCD is all proprietary? I with there was a MIPI DSI interface that enabled to display images without all limitations imposed by the tv software.
Bro thanks for the effort to put this video, understood the layers of this OLED tv 😀
Pretty cool!
Hi Nano, Tx for this content :)
What do you think of the overall quality of this tv ? I cannot believe Samsung is shipping bent panels which cannot be replaced
what a valuable video I ever seen on youtube
Very interesting video 👀👀
Nice work uniquest video
Excellent video, thanks. Subscribed.
Thanks for the sub!
I always let ppl know when I sub as well
very interesting and unique content
Awesome video! I own the 65" version and this was really informative! I know you didn't touch much on the speakers, but I have been really curious as to their placement. Was it two on the bottom and two on the top of the electronics section?
Thanks! There were two above the electronics (L and R), and a dual speaker below electronics closer to the center of the bottom (also labeled L and R).
Hope you tearing down Mini LED TV's in the next video!
Would be nice if we know what Mini LED/Neo Qled looks like and how the mini LED work actually.
I'll be waiting!
already subscribed..
Do you have any information about the SoC used in this TV? Cannot find its detailed specs unfortunately.
fascinating!
Cool video.
Thanks!
Hi, thnx, it's interesting go get know further. By the way is there plan to disassemble a MiniLed soon ?
If I can find one to teardown, I will do it!
wow.. we'll be wait for the how MiniLED works!
If the quantum dots convert white light to the primaries, does this affect the blackness of the screen in ambient light?
Think you.
Hi, can you tell me if the power supply unit is 110V ~ 220V? Even though the sticker on the back says it's only 110V? Thanks!
Awesome video
Thanks!
Bravo 🤙🏻👍🏻
Nice man....
do you know wheres the bluetooth chip located? I keep getting cut out sitting 6 feet in front of the tv.
Nice job. Was wondering if power supply is 110-240V
There have been theories that the QD-OLED backlight contained some phosphorescent green to boost efficiency, which would require the blue subpixel to contain a colour filter. Does that appear to be the case, or is the blue subpixel strictly scattering only?
This is also a question I wanted to answer during this teardown. Stay tuned for part 2.
Is not Theory, is fact, qd oled use 4 layer of oled, 3 stock of blue oled and 1 stock of green oled
Hi,
Could you tell me what is the part number of the power supply board?
Great video! I don't seem to see the speakers, where are they, all close to the electronic in the center? How do they sound so separated?
You don’t know what a speaker looks like, lol… Speakers come in many different shapes. They can be oval, square, octagon, hexagon, rectangular, etc. 😂😂
The pure colors in the thumbnails is due to the fact that these do not go through the CMS settings. Same with the Tizen, Netflix, CZcams and probably more. Seems that until now only Disney+ goes through the CMS.
Interesting, thanks! I did not check the apps but if I get a chance will do this next time.
@@NanoPalomaki A fun test, you go to CZcams, let one of the videos autoplay in the thumbnails and then lower the color to 0. The only thing that will go black and white is the autoplayed video :)
I really want to see you do this with the Sony X95k lol pretty please 🤣
You talked about the gamut issue at the start of the video. A computer is generally going to output Rec709 I'd think, so if the TV just used pure red pixels for the red coming from the computer then the colors would be significantly distorted. I'm not sure if HDMI communicates the color space or what the computer is putting out.
This should ideally be configurable on the TV. Not sure offhand if it is. Computer monitors often have a setting for this if they have a wide gamut.
Usually the computer gets the primaries from the display over EDID. Say they are AdobeRGB. That is a huge gamut. Then the computer knows the output gamut, and adjusts screen colours on the fly, for example from the YUV data in a MPEG video stream. It can limit the colours to match Rec 709. It does so by setting up a colour LUT in the video card so when the screen buffer is streamed to the display, colours are adjusted on the fly. We call this software calibration. You also can tune colours on the screen side. Thats called hardware calibration. Apple started colour calibration in the 90's under the name ColorSync, which became the base for the current ICC profiles.
@@2kBofFun I use calibrated monitors for my photography, but I think an issue is that proper support for ICC isn't universal. Even on Windows, which supports ICC, individual applications often don't. For example, the default photo viewer on Windows ignores ICC profiles, which is kind of crazy. I suspect lots of devices that output HDMI don't do any correction. Often wide-gamut monitors have an sRGB mode for this reason.
It would of course be ideal if the standard somehow ensured compliance, or had a way for lower capability playback devices to be mapped by the monitor to a Rec 709 space if they don't indicate some other space.
Of course calibration is still important to get exact reproduction, but at least getting the color space right would result in a much more accurate image.
well i think we just found where the grey-ish background color of the this years QD-OLED panels comes from when under bright ambient light, the QD layer isn't even fused to the emitter layer! so there must a slight air gap then like on old LCDs before they started doing opical bonding to the front glass
What are the speakers like how they look or sound
No no to destroy this awesome TV 😭
Yes yes yes to better understanding of the new technology💯
Would you please confirm if OLED panel dim on pixel level not zone of pixels
It appears to be controlled on pixel level which is how all OLEDs operate as far as I know. FALD miniLED LCD TVs are typically in zones. See my other video on this topic! czcams.com/video/YYICw1dkpaA/video.html
Would be interested what the led array looks like in a mini led tv if you ever come across one.
Me too! If I can get my hands on one I will definitely share the results!
On a miniled monitor@@NanoPalomaki
Hey, from where did you got that loup? Great vids!
Amazon, they are surprisingly inexpensive.
would love to see a tear down of a lg g2. some of these tvs claim having heat sinks, would be nice to see if they really have heat sinks or just a thermaly conductive layer like the s95b. maybe the heat sink stuff is all marketing bs. Also thanks for making this video its very informative .
I would love to if I can get my hands on one!
From what I know Panasonic was the company that made the patent for the Oled heat sink (few years ago) and the heat sink in embedded directly into the Oled layer. I believe what you disassembled was not a heat sink but just an insulation layer that's between the panel and the back housing similar to the ones you find on Amoled (mobile Oled screens). There is also no information on S95B that would indicate a heat sink nor was anywhere stated by Samsung Display to have one for Samsung variants.
Since some people are also asking about the gray blacks in a lit room, yes this panel lacks a polarization layer to have less reflections and boost image picture but the drawback is blacks appear gray when there is a direct light source. I personaly would rather have a polarization layer if I'm honest cuzz the layer that Lg, Sony and Panasonic are using is actually not that bad.
I guess it could be an insulator, but why would they not want to draw heat away from the OLED? Why NOT make it a heat transfer material? I still believe it serves some thermal purpose but I could be wrong.
@@NanoPalomaki yes it's a really good question why they make such decisions and this insulation could probably also absorb and transfer a little bit of heat from the panel but a proper cooling solution is not just a layer attached at the back of the panel cuzz it's integrated into the panel itself. All brands use Panasonic's heatsink solution and it would be really cool if you can get your hands on a Sony A95K that has a heatsink so you can compare both panels :-)
This really helped me remove my broken screen. I managed to remove it without further damaging the screen and kept the bezel in place.
It was just lifting the screen from the bottom slowly letting the weight of the back panel do the work by separating the glue from the two panels. I'm now looking for a new screen of this size. If anyone knows where I can get I'd very much appreciate the help.
Can you tell us if the power supply is dual voltage ? Dose it support 220v ?
It was purchased in the USA, so it is 110V. Not sure if those sold in other countries have a different power supply or not.
@@NanoPalomaki Label on the rear should say 110v or 110-220V
Hi. Brilliant video. The reason i watched it mainly was becease i had purchesed samsung qe77S90C. Which was very expensive but it has some sort of screen fault that i am trying to research. Unit is brand new straight of the box and has this fault where the pink tint is missing and i think it could ne antyreflection coating that has failed. Awaiting samsung emgineer to inspect but wondering if you could give your opinion on it.
I guess you would need some pictures to see it.
Gonna need a giant heat plate to separate everything like on phones.
My 3 month old LG oled 55" thin TV went to black screen so I requested a repair though LG when they sent out there technician the technician pointed out a small chip in the glass and said that is why I'm not getting any pictures. I'm completely dumb founded on this one I had no clue it was there because as far as I know nothing has even came close to hitting the tv. So the technician just reported as physical damage which now voids My warranty. The technician never open up the back of the tv to inspect if there was going on in the inside of it and I dont know if it would of made a difference. All I know is that nothing hit my t.v.
My question is does anyone know if it is possible that something pop inside the tv causing it to break the screen. The hole I'm the glass is near the upper left corner
Will there be a A95k teardown at all to compare the heat sinks?
Maybe at some point, but I don't have plans to buy one yet. I would love to though, so if you come across a broken one I'll take it!
When can I see part 2? I'm looking forward to it.
Soon I hope!
@@NanoPalomaki I'd like to ask you again.
When can I see the part 2 video? I'm so curious. Thank you for your effort.
Next week I hope!
Maybe you can investigate what causes the blacks to appear elevated/gray when the screen is illuminated by very bright lights close to the panel surface. There is speculation this is caused by lack of the circular polarizer present on WRGB OLEDs and/or external light activating the QD conversion material.
Yes it would be interesting. LGD WOLED panels have the best coating and anti-glare in my opinion. Nice glossy screen, deep blacks and also easy to clean.
I have been trying to determine this, probably should have worked on this before destroying it, but I am looking at the front film closely to see what it does optically. I'll report out in part 2.
Could you do one of the Sony a80l?
why not use a heat gun on that adhesvie or is that going to damage the screeN?I see heatguns used on cell phones .
Good idea, will try this next time. I did this on other TVs but was too excited on this one and forgot to do it.
@@NanoPalomaki Hairdryers also good as u can use 750 watts low or high for 1500watt of juice.
I tied one of these first- first was bent, second was bent. Never even bothered to turn them on. Decided to give up on this model and I'm glad I did after reading real user reviews. Next I tried the qn90b. Motion handling was terrible. Really bad soap opera affect that cannot be disabled, bad blooming and thin washed out looking colors. Next I tried the Sony a80k and it was just way too dim to handle HDR properly and again the motion handling wasn't great. Lastly I tried a LG C2 and again the motion handling was terrible. It physically makes me sick and gives me eye strain. I don't know how people can tolerate OLED motion handling. Even outside of these issues my Panasonic ST60 plasma had better picture quality than each and every one of these sets. Even comparing SDR against HDR and the plasma motion is perfect. OLED pixel light output just cannot match the characteristics of plasma pixels which are tiny glass containers filled with gas that is on fire. OLED looks exactly like LCD with perfect blacks.. makes sense because each OLED pixel is like a tiny led light bulb. Anyway, I'm done trying to "upgrage".
Aren't you losing money destroying such expensive tvs?
omg only 224 sub i was thinking 2 millions O_o
It's only my third video, help me get there, ha ha!
Most of the TVs I teardown I get for low cost or free because they are already broken.
@@NanoPalomaki
🤣 Will that must help for sure
Wait so the S95B does have a heatsink? Or is a heatsink really supposed to be a metal sheet?
I think it is a heat transfer material designed to get heat away from the OLED and to the back panel for dissipation. But it is somewhat flexible and soft perhaps to make the display less fragile.
I just have to Subscribe after you spent money for this educational video, Thank you so much for sharing.
I have a question does S95B use cheap components because i was planning to buy one & ive noticed the price of the TV just keeps dropping, in forums people are saying samsung used cheap parts to make this TV. CZcamsr TheTechGiant TV breaking under a month, Samsung not giving extended warrenty & dead pixelsa on 3 S95B panels from a single buyer = conclusion??
But,,, why? Was this a faulty model or something; I hope you have a good reason for trashing an amazing spec High-end TV.
👏👏👏👏👏
How is this panel for heat? So we can decide on this new tech if it’s better for burn in even though burn in in my opinion isn’t a problem anymore with OLEDs
Burn in will always be an issue with OLEDs, given that they degrade with use.
@@andysmith1996 for me personally 2 years is good enough I always upgrade every 2 years so burn in no issue for me
I was not able to measure the heat but this is a good idea. If you are not displaying static images then burn in should not be an issue with most newer OLEDs. If you watch something with a logo all the time it can be an issue.
@@NanoPalomaki when people say long time I never know what that means like if your watching football game or something and says fox on the right corner for 7 straight hours is that long time?
@@NanoPalomaki or like NFL redzone which is 7 hours no commercial is that a problem ?
I’m gonna do this with my forced update 1302 version!
Update to 1303
@@mythoti 1303 is no different I checked it yesterday. peak luminance didn’t change dynamic is still 1500, but I use the tv for gaming so I don’t care about dynamic mode.
@@aegontargaryen573 glad I went G2 since Sammy nerf this set.
Is this tv unreliable to point of not buying it? specs wise seems great, and its "only" 200 euros expensive than sony a83k... what is better option for 55", ps5 gaming?
It’s a pretty incredible TV. But I’m not a gamer so can’t say.
@@NanoPalomaki I bought tv, I needed to find correct settings to get colors good, i didnt have any issues like bend or something... looks and plays absolutly perfect.
@@edinchess same here. Maybe there were some QC issues, or maybe it is just easy to damage.
I beleive the samsung does not have a heatsync because the heatsync metalic
Perhaps a more accurate name would have been heat transfer material. The black material was adhered on one side to the OLED, and the other side to a metal plate.
I'm guessing you are well monetized by CZcams to afford to do this to a brand new tv. Thanks for the inside view. I used to do a lot of tv repair from crt sets to lcd sets. As led came along repair calls pretty much vanished. They are so cheap no one wants to pay to fix one so I haven't had a look inside the new tech sets.
We are wait disaasembly Neo Qled Tv
This is better then actual heatsink from Sony and LG?
Not sure to be honest, I was not able to evaluate the effectiveness of the heat sink.
Nooo
i just broke my 2days old tv trying to make last adjustment on tilt side this tv are so sensitive jeezus crist man
F
I wonder why people doing teardowns do things in fast forward, this is the whole opposite of a teardown
please don't time lapsed the videos when you diassembled the TV's. I really enjoyed how the detail and process of TV's tear down..
Video might take more times, but it's really enjoying.
If I don’t speed it up it would be like an hour long!! I’ve toyed with the idea of a live teardown, thoughts?
I took a projection tv apart once and the DLP chip looked like impossible technology. A DLP chip has 100's of thousands micro mirrors that can be independently be switched open or close reflecting the light that is coming from a spinning color wheel. I have no idea how it is possible to manufacture and then to precisely independently control such a small mirror. The chip was invented in '87 but to me it looks like it either came from far in the future or possibly aliens : )
Amazing the tech that we can find in our electronics.
I would love a tear down video on that.
Go inside of any Wafer fab.
You will soon realize this is alien technology.
Not ground up research and development
I wanted to see the speakers.
There are 4 speakers total it seems. Two located in the bottom center (but still L/R labeled), and two mid-display more spread apart.
@@NanoPalomaki Thank you.
I sub now!
Thanks!
If you are open to suggestion, it would be nice a video investing the OLED cooling (maybe with a Lepton Flir).
I've been wondering how effective the squish pad is, and how much it could be improved by adding a heatsink or a water cooler (since replacing it seems quite hard).
Since it would be hard to stress the whole OLED , the test could be done in a small patches. Maybe run the same images in two separated regions at same time, one with and the other without extra cooling for comparison.
Anyway. Great work. I really like your channel.
It is hard to find content about display technologies that isn't either oversimplified or too academic. Your content (plus some color theory) is about the sweet spot for me.
A few other things that I tried to look before:
1. Does all same colors LCD pixel filters the same wavelength?
1.1 Is the image quality (the color volume) mostly dependent from the backlight?
1.1.1 Does changing the backlight from a LCD display can improve the image quality (assuming it is calibrated).
2. How different wavelengths change the phosphors and QD emission.
2.1 Leds such the waveformlighting absolute-series that uses 420nm needs a completly different phosphor mixture (other than blue phosphor).
Let me know if you want me to expand them.
I've many others. I can write more if you are interested.
Another thing. It would be nice if you shared the measured spectrum data in csv, or any easy to parse format in GitHub. If you do, I could try to write a python notebook or something alike to plot the color volume and anything else :P
Wonderful ideas, thank you! I do hope to get deeper into the color theory in future videos.
Please, use IPA for adhesive components
Good idea!
@@NanoPalomaki, IPA isn't beer, it is IsoPropylAlcohol ))
HA HA! Little did you know I have a PhD in chemistry. I didn't even think about the idea that someone could have through you recommended beer as a solvent. I wonder how many people now are considering taking adhesive off with beer! I prefer acetone (nail polish remover) or some paint solvents that are easy to get too.
@@NanoPalomaki, it's because I'm from Russia :D
They already ship destroyed. I know, I have one.
Would you confirm that the 'heat sink' layer is indeed a heat dissipation material. If this is the case, this tv is alike the A95K.
How do you recommend I confirm this? Honestly I don't see what other purpose it could serve, other than to remove heat and provide a spacer between the QD-OLED portion and the metal back/electronics. I don't think it serves any optical purpose.
Do you have photos/videos of the A95K that has a similar material? I would love to compare.
Thats a great question. We would only know the difference when a a95k is dissassembled, or picture/video. Still, the 55" A95 weights 21.2kg, the 55 s95b weight 16.6. Both without stand. This doesnt prove nothing because of course theres a lot of others materials in a TV, but part of it would it be of an heatsink panel? Who knows.
Still, the s95b gets more valued with this thermal layer.
Yea no, even if this is a thermal interface, there is a reason Samsung is not advertising a heatsink here, like Sony is, because this certainly would not classify as one under almost any circumstance. A95K almost certainly includes an extra layer of metal, likely in addition to this layer, to act as a more traditional heat 'sink'.
Suggest that you take a sample to the computer store. People there may be familiar with heat sink material as it is used in numerous computer components. Apart from this will be material testing in a lab.
Can‘t do much damage to those panels honestly if they come out of the box already horribly bent. Poor QC and material choice by Samsung.
Mine came perfect
I have no way to know what is in anybody else's boxes, but part of me wonders if this is due to incorrect handling, or just the super thin design if you prefer. If you don't lift that screen exactly as directed I'd think it would be very easy to bend it. Many could do it without realizing it.
If you changed the TV to Rec 2020 mode and fed it HDR in 2020 you probably could get pure R/G/B
I tried a few settings and could not get it to show pure R/G/B, but then again I am not the expert on video settings.
This test is ok becos we are not see original red green blue
Should look at the sony and see the better components
that would be interesting, or just realize they basically the same but 1k more :D (i know there's other stuff like processing etc.) we can't be sure until we see it
@@kuxii_youtube some other guy opened up an a80j, it was really well built compared to the average samsung/lg
The asian guy who dropped his own tv? Cuz theres nothing proving better build quality, only diff that he mentions is Sony prob. uses the same power supply globally which only has advantage in Us. For me in EU its 220V standard
Amazing technology let down by crap tizen software
This tells me that the panel can never be changed! unlike the LG OLEDs which you can.
The Quality is not good...
Cheap Quality Control, screen broken while opening the tv. How great for repairs. 😒
To be fair, I was getting to the guts of the light engine of the TV where no one would be able to repair things. At the electronics level the TV was still operational and could have been easily repaired.
@@NanoPalomaki yes true if we forget the screen. Its so thin.
Why would you break a perfectly good Samsung TV? That makes me sad for seeing one intentionally broken just for you to see what’s inside. Samsung is the best TV brand of all brands. OLED is the best. However, you can do whatever you want with your things because you bought them. I’m not trying to spread hate. I like this video to see how the TV works, though. 👍
Because people are interested in seeing the internals of the TV to understand how they function, he clearly said he didn't mean to break it, but these manufacturers make it as hard as possible for repair people to get inside so they can make more money from people breaking the TV.
Also, your brand simping is funny. Samsung, Sony, and LG are all good premium brands that make mistakes. One of Samsung’s biggest mistakes was the one-connect box, where the unit would go bad, but they stopped making them, forcing people into buying new TVs. Samsung might be taking the current crown for best OLED TV from Sony after what they showed at CES 2024, but another brand will outdo them soon. Competition drives innovation. LG currently creates all OLED panels, so if you like your Samsung OLED, you can partially thank LG for that.