LG Display Claims Samsung's QD OLED More Susceptible to Screen Burn Than LG's WOLED

[Scrizz]

I'll just wait a year or so after they are out, to see the consensus on which one is better. I'm still on a high-end panasonic plasma (fitted with a PMCv2 to restore black levels), and it's only now with OLED that TVs start to beat the picture quality of that, not counting HDR and 4k which I have no use of. That one had image retention too, it wasn't really a problem, it only got serious if I displayed the exact same content for a week nonstop, and even then it went away after a week is displaying something else.

I'm a month or two away from having mine a year. I have no issues as expected.

 

[konga]

Need smaller sizes (for monitors) and better prices.

https://www.bestbuy.ca/en-ca/product/lg-48-4k-uhd-hdr-oled-webos-thinq-ai-smart-tv-oled48a2pua-2022/16666203

If I can get a 48" 4k oled tv for $1000CAD then a 24" should be about $250 or at least a 24" 1080p

Good luck....................

Unfortunately, you can't just divide the cost of a 48" 4K display by 4 and say that's how much a 24" 1080p display should cost. There are many fixed per-unit costs at every step along the way, and I wouldn't be surprised if the real cost was up to one half that of a 48" 4K display. You also picked the cheapest OLED display LG makes (the "A" series). I don't think most gamers would be happy with a 60hz display, which is what that is.

 

[The Von Matrices]

Maybe I'm just gentle on OLED panels but the laptop I'm using to type this message (Alienware 13 R3) has a Samsung RGB OLED panel and has no signs of burn-in after 6 years. Yes, I take a few precautions like using a dark color theme and changing the location of the taskbar on the screen every few months, but I think that unless you are running an airport departures signboard, burn-in is way overrated as an issue.

 

[londiste]

So yes, blue OLEDs burn out faster than red, green, or white OLEDs

This is probably what LG is going to focus on. And at least on first glance they might not be wrong.

 

[Minus Infinity]

It's a bit confusing. Samsung QD-OLED has only blue OLEDs, but the QD layer on top of them turns it into RGB in subpixel size.
So effectively looking from outside it does have RGB subpixels, but the actual OLED part doesn't, it's just blue all around.

Quantum dots can change the the frequency hence wavelength of the input light. The out frequency is dependent on the size of the dot, bigger dots produce longer wavelengths or lower frequencies. So you tune the size of the quantum dot according to whether you want green or red light. The spectral content of the produced colour is far more pure than colour filter array's (CFA), that is they aren't as broad spectrum, but they aren't like a laser in being very narrow band. This purity allows greater colour accuracy vs CFA's.

The only worry would have is that in the old days blue OLED's had a far shorter life than red or green oleds. I presume that issue has been fixed.

 

[TheDeeGee]

What causes problems and premature death in both LG and Samsung brands are the integrated circuit board responsible for the video (vcon).

it seems to be built with intent to fail, note that some monitors come with a 3-4 year warranty but all TV brands only offer 1 year. lol

My EIZO CX240 has 27000 Hrs runtime on it since 2013. It's built like a tank.

I may consider sticking with EIZO after all and skip OLED.

Maybe I'm just gentle on OLED panels but the laptop I'm using to type this message (Alienware 13 R3) has a Samsung RGB OLED panel and has no signs of burn-in after 6 years. Yes, I take a few precautions like using a dark color theme and changing the location of the taskbar on the screen every few months, but I think that unless you are running an airport departures signboard, burn-in is way overrated as an issue.

I guess brightness also plays a role?

I use my current monitor at 50 CD/m², which translates to about 18% for that monitor.

 

[londiste]

Quantum dots can change the the frequency hence wavelength of the input light. The out frequency is dependent on the size of the dot, bigger dots produce longer wavelengths or lower frequencies. So you tune the size of the quantum dot according to whether you want green or red light. The spectral content of the produced colour is far more pure than colour filter array's (CFA), that is they aren't as broad spectrum, but they aren't like a laser in being very narrow band. This purity allows greater colour accuracy vs CFA's.

I think in this case of WOLED vs QD-OLED the result has more to do with the (very) dirty spectral output of white OLED in the first place. LG definitely has QD CFAs - think QLED, I think the marketing name LG uses is NanoCell - so it is reasonable to expect them do employ those in their OLED panels as well.

I guess brightness also plays a role?
I use my current monitor at 50 CD/m², which translates to about 18% for that monitor.

Brightness definitely plays a role. Most if not all of the youtubers who got burn-in in their LG TVs when used as monitors ran with OLED Light at 100 (maximum). Disabling some of the built-in features also does not help. Granted, ABL is annoying so that is understandable. But also LG TVs need to regularly be shut down to run their anti-IR/burnin tasks.

Generally I like to run my monitors at 100-120 cd/m², for the LG C2 I currently use this is somewhere between 25-30 OLED Light setting. Thinking of turning it down a little because enabled ABL does sometimes kick in but it seems on the precipice of not having to kick in. Haven't used the C2 long enough to draw conclusions on burn-in yet though

 

[chrcoluk]

hmmm

https://www.reddit.com/r/OLED_Gaming/comments/1159jsp

Dont you just love it when a reviewer cares about more than just day 1. Love it when manufacturers are caught with pants down.

 

[Chomiq]

Sony uses Samsung QD OLED panels now.

And LG WOLED for A80x and A90x tier.

 

[Arkz]

Both make products fragile and disposable due to irreparability. Sony is the only TV brand I respect for quality.

Sony used to put metal tubes in their Trinitron TV remotes to make them heavier. Brand loyalty is dumb when they jump back and forth between quality and screwing people over.

 

[champsilva]

Apple is going to introduce in its 2024 ipad pro lineup a new generation of OLED screen (done in conjunctions with display manufacturers) that is reporterdly brighter and more durable

Our salute will come from micro-led: no burn-in, excellent brightness and infinite contrast.

Apple will use microled, not oled and...

Apple's switch to micro-LED could take a decade to reach every product - 9to5Mac

Apple’s transition to micro-LED display technology is in the early stages, but the company has ambitious plans for the future....

9to5mac.com

 

[Vayra86]

Sounds like some BS talk from the PR team.
WOLED needs the W because it is less efficient so they need to add the W to boost the brightness.
QD-OLED doesn't need the W at all and more efficient = less heat = less burn-in....

Ah yes, could you elaborate and add the relevant research paper to support this please? Assumptions are the mother of all fuckups, as they say.

hmmm

https://www.reddit.com/r/OLED_Gaming/comments/1159jsp

This is brutal, holy crap.

Glad I just bought a C2...

Faith in Samsung Display was already at rock bottom after AMOLED retention & their VA panels all suffering from uniformity and bleed issues / shoddy build quality. To be honest I have yet to see a Samsung implementation that withstood the test of time. Its all overpromise underdeliver. And here we are again... QD-OLED is... surprise surprise, more of the same.

 

[kondamin]

I don’t understand why most people bother with any OLED.
do you go and sit in a dark room to watch a movie, if no get FALD and be able to watch tv in a bright living room

 

[trsttte]

Ah yes, could you elaborate and add the relevant research paper to support this please? Assumptions are the mother of all fuckups, as they say.

That's pretty well known and I believe even admitted to in LG press releases, the white component is there to boost brightness. The QD-OLED is also more efficient by using quantum dots instead of color filters (instead of just absorving out the parts of light you don't want to see, quantum dots "convert" all the light received to the wanted color output), all this is pretty well understood.

What remains to be seen and is in question is if the current implementation by samsung is indeed better as they claimed in the past or if they failed to realise the potentials of the technology as LG now claims

 

[Vayra86]

That's pretty well known and I believe even admitted to in LG press releases, the white component is there to boost brightness. The QD-OLED is also more efficient by using quantum dots instead of color filters (instead of just absorving out the parts of light you don't want to see, quantum dots "convert" all the light received to the wanted color output), all this is pretty well understood.

What remains to be seen and is in question is if the current implementation by samsung is indeed better as they claimed in the past or if they failed to realise the potentials of the technology as LG now claims

The assumption I speak of is not the properties of each technology, its pretty obvious those are written down.

Its obviously about the assumption that WOLED is more susceptible to retention 'because its brighter'... which is based on nothing that I have seen other than 'feels like that'.
Meanwhile RTings shows the polar opposite. You can see obvious color deviation, and always to a greater degree after 1200 hour longevity tests with WOLED en QD OLED side by side. It also shows that QD OLED can reach higher brightness levels / Samsung tweaks towards higher brightness rather than deeper blacks.

 

[Chomiq]

Meanwhile RTings shows the polar opposite.

You can see obvious burn in on QD OLED's screen, check the lower 20% of the screen.

It also shows up on blue field. And that's 2 months in.

 

[Chrispy_]

This is probably what LG is going to focus on. And at least on first glance they might not be wrong.

yeah, blue OLEDs wear out faster because they emit more energy, it's not complicated

The thing is, burn-in is an umbrella term for several types of wear and if LG focus on high-contrast wear of only white logos, they're biased. Because coloured logos will cause a different type of burn-in on LG's WOLED that Samsung's QD-OLED will be far more resistant to. If they don't acknowledge that then they're just biased liars.

At any rate, I'm still avoiding OLED for monitors until we get a native RGB OLED stripe. The fringing of text from non-standard subpixel layouts is a nightmare for text legibility and whilst that *should* be something you can fix in software via the OS or graphics driver, but it's not currently fixed so until then we're still reliant on vertical rectangular RGB subpixels from left to right to work with Cleartype.

 

[dgianstefani]

Maybe I'm just gentle on OLED panels but the laptop I'm using to type this message (Alienware 13 R3) has a Samsung RGB OLED panel and has no signs of burn-in after 6 years. Yes, I take a few precautions like using a dark color theme and changing the location of the taskbar on the screen every few months, but I think that unless you are running an airport departures signboard, burn-in is way overrated as an issue.

I had one of those with a 7700hq and 1060, great 1440p laptop.

yeah, blue OLEDs wear out faster because they emit more energy, it's not complicated

The thing is, burn-in is an umbrella term for several types of wear and if LG focus on high-contrast wear of only white logos, they're biased. Because coloured logos will cause a different type of burn-in on LG's WOLED that Samsung's QD-OLED will be far more resistant to. If they don't acknowledge that then they're just biased liars.

At any rate, I'm still avoiding OLED for monitors until we get a native RGB OLED stripe. The fringing of text from non-standard subpixel layouts is a nightmare for text legibility and whilst that *should* be something you can fix in software via the OS or graphics driver, but it's not currently fixed so until then we're still reliant on vertical rectangular RGB subpixels from left to right to work with Cleartype.

Heat is what kills OLED pixels not the amount of energy. If blue OLED is more efficient than the other colours then this isn't necessarily true.

 

[efikkan]

As a matter of fact, OLEDs are not susceptible to burn-in at all. It's disappointing to see that nearly everyone don't know the difference between actual burn-in and uneven wear, a distinction which is very important as the cause is completely unrelated. Static images are not a problem for OLEDs, content with very unbalanced brightness is the problem, which is easily mitigated with varied content.

Whether uneven wear is a bigger problem for Samsung's QD OLED will be important to uncover though.

Maybe I'm just gentle on OLED panels but the laptop I'm using to type this message (Alienware 13 R3) has a Samsung RGB OLED panel and has no signs of burn-in after 6 years. Yes, I take a few precautions like using a dark color theme and changing the location of the taskbar on the screen every few months, but I think that unless you are running an airport departures signboard, burn-in is way overrated as an issue.

It's because OLEDs don't have burn-in. As long as you avoid one region showing significantly brighter content over time, then you should have no issue, regardless of how static the content is. If you however often have a bright white bar at the top of a laptop or phone screen, then you will get uneven wear, even if it's never there for hours at the time, because it has nothing to do with being static or not.

But it's worth being said that pretty much every LCD screen is very uneven too(unless you're talking about premium screens from EIZO or NEC), much more uneven than an OLED screen will be after many years. There is really not much reason for concern with normal use, and an OLED's uneven wear can be corrected too; just watch more varied content and the problem will fade away.
Also, many LCDs do have some kind of image retention too.

What causes problems and premature death in both LG and Samsung brands are the integrated circuit board responsible for the video (vcon).

it seems to be built with intent to fail, note that some monitors come with a 3-4 year warranty but all TV brands only offer 1 year. lol

You should expect them to last only a few years, and pay accordingly. There is no point in buying an overpriced TV, there is no correlation between what you pay and how long it lasts (as long as it's a good brand). This is why I bought the outgoing model from LG last year at nearly half price.
One of the advantages of OLEDs is that even the "cheap" ones are pretty good too, way better than any LCD.

 

[Denver]

Sony? The ridiculous overpriced company that their products broke within 6 months after the warranty expires?
The Sony that sells LG panels TVs for x3 times the price?

That's what I would say about the quality of TCL, LG and Samsung TVs. All with very high failure rate within 1-2 years of use.

Data I obtained from the technical assistance that works with several brands. Sony's failure ratio to these other brands is something like 1/10. 3 TVs in trash within 5 years while an almost 7 year old sony still going strong despite recently appearing a row of dead pixels. :')

To be honest I've been thinking about replacing the TV partially with a decent laser projector, at least it has many years of warranty.

 

[Makaveli]

I don’t understand why most people bother with any OLED.
do you go and sit in a dark room to watch a movie, if no get FALD and be able to watch tv in a bright living room

my Lenovo P12 Pro Tablet has an OLED display and for media consumption devices I must say its pretty nice.

 

[Readlight]

They not from EU.
4K is useless. It high cost. Demanding for computers. Expensive to stream movie service. National TV is in full HD.

 

[bug]

Sounds like some BS talk from the PR team.
WOLED needs the W because it is less efficient so they need to add the W to boost the brightness.
QD-OLED doesn't need the W at all and more efficient = less heat = less burn-in....

I have serious doubts QD-OLED is the more efficient solution. Instead of one layer (OLED), it uses two (OLED+QD). And then the electronics need to keep both in sync...
But that's just the (uniformed) engineer in me, we'll just have to wait and see.

 

[clopezi]

In the European Union we have three years warranty for all products, so it's hard to believe those people claiming a high rate failure in short time, no matter the manufacturer.

 

[R-T-B]

I have serious doubts QD-OLED is the more efficient solution. Instead of one layer (OLED), it uses two (OLED+QD). And then the electronics need to keep both in sync...
But that's just the (uniformed) engineer in me, we'll just have to wait and see.

QD layer is pretty much dumb and needs very minimal control. But I still agree with you.

Another issue though is it also has bleed-through to neighboring pixels on single pixel light tests.

How much that matters is debatable, but it certainly does not happen on WOLED.