What is Dirty Screen Effect (DSE)? | How to test and what to do 

To me… DSE is far more bothersome than blooming. The new LED TVs have gotten so good at minimizing blooming that it is not all that noticeable in most scenarios. However, DSE varies unit by unit and is a total crapshoot. Unfortunately, some manufacturers don’t even see this as an issue even on their high end models.

This is one of the most helpful video clips that I have seen, helping people to decide on buying a TV. Thank you.

Thanks for bringing attention to this. Manufacturers need to step up their quality control. The only way they will is if the consumers no longer tolerate these defects. I had to return two 85 inch qn90as for dse and dead pixels.

Maybe some additional information on what causes the DSE. There are three things that make DSE: 1. Uneven backlight distribution 2. Uneven pressure on/in the panel itself 3. Uneven space distribution between the RGB layer and difusser from the backlight - The first one can be solved by replacing the backlight system, the uneven bright LED's are causing different light distribution and therefore causing DSE - The second one is solvable if the pressure lays on the panel itself, that's why some people suggest to "loosen up" the back of the TV. If the pressure lays in the panel itself than it's a manufacturing failure and can't be solved. - The third one is tricky. It's caused by either touching the RGB layer and backlight difusser or the surface of the difusser is not even. If the layers touch each other you get lighter white spots but if they don't and the difusser is uneven you can get dark spots. The RGB layer and the difusser have to have a gap between them and the defusser also has to be as even as possible so replacing the difusser solves the problem for the most time.

I lost the panel lottery on a TCL I ended up returning. It was such a hassle to box everything back up that I decided to take a different route altogether. For Christmas I got my son a Hisense U8G and lost again; it was thru Amazon. I decided to give it another shot locally since the TV itself was very good, and got one that was almost perfect. Very happy overall. I do believe that manufacturers ship units with DSE because not enough people notice it or care about DSE. I am positive that if they had enough returns, they would not sell them in the first place; it costs a lot of money to process a customer return item.

Thank you so much for this video. I just got a new TCL R646 a couple of months ago. I have a screen anomaly I thought was DSE. However, I saw no DSE on the slides in your video. So, thank you again. I guess I will keep it. LOL. BTW, the shot of the little girl attacking the tv with a hammer was worth the whole video!

As a golf fan, DSE drove me nuts on my last TV. It was very noticeable when watching golf. Luckily, my LG CX 77 doesn't have that issue. Of course, my old TV is still in use, just not as my primary, so it isn't as bothersome.

Just tried the test images on my Sony 77A80J, and it looks quite good. Not perfect mind you, but nevertheless quite good. That being said, many of us who regularly view these expensive large display panel televisions don’t have perfect vision anyway. For example, I have myopia and astigmatism, corrected with lenses, but still have significant issues with vitreous floaters… which can appear like “migrating dirty screen effect” at times! I guess my point is that nothing is perfect… And even if the screen were absolutely perfect, our eyes may not be capable of perceiving that perfection. As my dear old dad used to say, “it would look good to a blind man“.

I recently had a Hisense U7QF that had a really bad case of DSE in one portion of the TV. It was so distracting that I ended up exchanging it and the new panel is so far so good to my eye. The returns process was really easy and fuss free at least from my experience with Hisense so I'd recommend it if you can.

It's on my 55 inch 2019 TCL 6-series Roku tv. I would call it moderate/acceptable DSE. When watching a movie I rarely notice it, maybe for a brief scene or two (camera pans across an overcast sky for example), or not at all just as likely. Fortunately I don't watch hockey or close ups of golf greens. I knew about this before I bought my TCL and thought a fair tradeoff for the great price and overall quality of the image. After over two years still very pleased with the purchase.

Never buy Samsung if you want a clean panel

Great video. I'm really lucky with my 65" X90J. It has an amazing panel with nearly zero DSE. I really love the TV especially after this latest firmware update from Sony.

Thanks Caleb. I can’t say I wasn’t warned. NOW I know I should’ve skipped this video. But it’s early on a Saturday morning, so I decided to played your “can you see the dirty screen” game. The first few were not very obvious. Then I noticed a spot on one of a colored panels! Great, I think. I‘ve learned something important, I think. I’m going to be ready to check out the screen on a new TV I hope to buy later this year! I think. For several fleeting moments, I’m very proud of myself! The next color flashed on screen and the “pinkish” mark was still there. Hummm. A the third test panel arrived, and the very light, pinkish hue is still there. WHAT! Calm down. I’ll just clean the screen and it will disappear. Nope. I’ll never look at this iPad mini the same way ever again. The “pink splash” will always be on the screen. Right now, it’s on the keyboard while I type. It’s on and between the top corners of the h and j keys as I type this note. It hasn’t bleed on the “u” key, yet. But I’m sure I’ll know the moment it does, because I seriously don’t think I’ll ever “unsee” this again! I swear it wasn’t there yesterday, or earlier today when I watched subwoofer reviews on RU-vid. I’m resigning myself to months or years of a growing pinkish hue splash, emanating from my iPad mini. 🤦‍♂️. I suppose my only real hope is Apple announcing an unanticipated upgraded iPad mini (@ a super low price) during next week’s Apple Spring event. Right. Pigs will fly first. Caleb, can you do a video of how to put toothpaste back into the tube? Yea, I know. That’s not gonna happen either.

Thanks for the awesome videos Caleb. Tested my 10year old Kw-9004A. Happy to say only two small DSE at the very bottom. Maybe due to lifting the tv as they are thumb sized. Will be careful next time. Thanks take care always

Just watched this on my current Samsung UN46B8000XF tv and it’s still going strong with no dirty screen. Must be going dimmer equally all around. Keep up the great work and can’t wait to see the new TV’s for 2022 that you review.

I noticed DSE (vertical bands) on my 2018 TCL 6-series right away watching a hockey game. But it wasn't bad enough for me to return it. I was and still am very happy with the overall performance of the set. My 2016 Sony 930D, however, has minimal DSE in the corners. Sony quality, at least in their premium sets, wins out every time.

Bought a Sharp 60" TV and became aware of this issue the very first day, after a couple of days I was certain it's the TV (and not me). Following advice on one site (which described this problem as clouding), I did manage to gently and I mean gently massage the screen with a very soft cloth to even it out. As you say, I couldn't un-see it, but also realized there was vertical banding. Over the next few days the back light started clumping in other areas. So I returned the TV. In doing research to find a TV that was less likely to exhibit this problem, the Sony X90J came highly recommended. I did more research on this TV and that's how I found your channel, I watched all the videos you made for this TV (and subscribed). I came away confident that the Sony was a good buy, and I am very happy with it. It it does have DSE, I haven't seen it yet (had the TV for a month) so I think I got a good panel. Thanks for your channel and keep up the good work.

I've seen this before. Not often but thankfully it in my own TVs. I work in selling electronics & have a wall of TVs on for about 15 hours a day every day. I figured it was mostly the lighting system going out. I've seen it on TVs that have been on display for close to a year.

So glad to see this video. I had these dark splotches (didn’t know the name for the effect) on the upper corner of my Sony X95. Caught it just a month or so before my Best Buy Geek Squad warranty ran out. Best Buy replaced the TV (with a refund which allowed me to upgrade since prices had dropped) and in so many words told me my effected TV would be disposed, and I was not liable to return in. Since the splotches weren’t horrible, and hardly noticeable unless bright scenes play, I basically just scored an extra 65” X95 for my gym.

Thanks! My New TCL 5 75" inch looks good to me with the test but I am 67 years old so being that as a Factor I am still happy with what I saw from using your test & that I won the Loto! lol

Not sure if you read my comment on your review for Sony's QD-OLED about this, but I appreciate you addressing the issue! Glad you mentioned it's also a problem with OLED, albeit for different reasons. DSE is the bane of my TV watching existence. I always notice it. Again, I hope to hear some feedback on if QD-OLED provides a cleaner display.

The direct line of sight really helps with my laptop. I noticed the DSE but only while off-angle.

Hello Caleb.. Quite informative and at the same time entertaining! Looking forward to see your review on the new z9k 2022 panel.

Am working to resolve a TCL R646 issue with DSE I identified literally days ago, so thanks for the timely education! Hopefully TCL will take care of this as I bought just before Best Buy removed them from the shelves last year! 😡

My new screen (Samsung 50" AU8000) has very slight DSE vertical banding on the left side, but only in one spot and it is not noticeable during the vast majority of content. The only time I see it is during football matches every now and then. I can live it. 4K looks incredible coming from a 32" 1080p TV from 2011.

In years past there was a company called Pioneer, They created a plasma tv so good that it had no burn in, no dirty screen effect and the purest colours you could want.. 14 years later no tv does that.. Japanese masters!

I had DSE in my new TV, Sony sent me a new unit. That's a win in my book!

Hey Caleb, when will the review for the X95K be up (if you managed to have some time with it as part of the line up.) Very excited to see something regarding this TV given (understandably) a lot of the limelight is going to the A95K

Follow the recommendation! If you are happy with your televisions, then DO NOT look for screen faults. There is no perfect screen. Once a flaw is found, you can no longer avoid seeing it in all content.

My TV is clean as a whistle! Hey Caleb, you're looking good buddy. Good exercise & diet plan? Keep up the good work & great content!

I have a Hisense U6G 55 inch that has DSE. I found that by lowering the backlight to 10 and rising the contrast to 90 I was able to reduce the Dirty Screen Effect substantially. It is barely noticeable now.

Good video. My previous TV started showing DSE once it got kind of old. It was the bottom left corner. It was noticeable on light screens only, so not too bad. But I was glad to replace it by my current TV.

The test in this video reminded me of how I watch virtually all RU-vid videos on my flagship Android phone with a perfect display. Blow this up to 65 inches and I'm set for years.

I was worried about OLED burn in as I use it for a monitor (but from the bed). So I bought a LED panel one from Philips, and it has slight DSE, but you really gotta look for it. Overall satisfied and accepted that there is no perfect TV, I'll be more aware next time. I just don't know how realistic it is to return a biga$$ TV, I mean the unboxing an installation was such a chore in itself. I don't necessarily want to minmax it and pull the lever to get another one, and another... So many things could go wrong. If I deem it acceptable might as well just stick with it. I mean I did minmax my monitor but that's different and is used for work, I was hunting for bad pixels and there was in-store unboxing of several until we found a perfect one. That's a bit unreasonable for TVs (store employees will surely hate you for making them unbox and exhaustively several TVs that look perfectly good for the average person but you are nitpicking about a bad pixel you will not even see from over 1.5-2m distance or a DSE you didn't know exists before this video :D). Or with infinie money order 10 different models, test them all in your home, then return the bottom 9 with a courier? They'll just love you. Realize TVs used to be black and white and bulky in terms of depth. Nowadays they are far more brilliant than most people's eyes have ever seen. After seeing how crappy TVs are set up in hotels, and at non-TV-enthusiastic people's homes, with wtf/default settings... the fact that we care even a tiny bit about picture quality to notice flaws means we pay attention and are already better off. If it's not that annoying, just be happy with it :)

I have a Hisense U6GR (Canada version). I have vertical bands of dirty screen. You only notice it on solid light backgrounds such as snow, grass and sand. Sports like tennis, hockey and especially watching the winter Olympics was a nightmare. Besides that, the TV is perfect. Just sucks cause once you see it, you will see it for life.

I had this problem 2 years ago with the highest end 2020 Samsung 8k tv, it had horrible vertical banding and inconsistent blacks but Samsung was fantastic about it and gave me no trouble and replaced it with the 2021 model 6 months after I bought it

Didn't realize there is even a term for it. I noticed the "splotch" within a couple of days after I bought my name brand TV recently. First, I tried to wipe it with a warm water and soft cloth but that didn't fix the issue so I returned it to BB and upgraded to a better model. A blessing in disguise.

Nice. My TCL R646 has the opposite of Vignetting... It is brighter along both edges by about an inch. But on the BRIGHT side, on my luminance meter, your white slide hit 600 nits. By A80J only managed 385 but didnt have any DSE at all.

Nicely explained for the average consumer- looking forward to more informative videos on say blooming, halo-ing and other common issues with TV panels.:P

I notice it on my Hisense 50U6HF (Fire TV) panel, but I'm sticking with it because there are too many horror stories of people returning TVs three or four times, playing the lottery -- and basically losing. I've mostly heard to just ignore it because you usually only notice if you have a test screen. Also, I only really notice when I use "high" local dimming and local contrast enhancement.

Could a careful scan of the screen be used by software to adjust brightness levels to cancel out the DSE pattern? That might be something useful to offer in firmware or to implement in the factory where they have the ability to perfectly capture a scan of the screen's output.

My MacBook Pro screen has literally no DSE!!! I am damn impressed. My TCL 6 series does have some though but honestly, it does not bother me as much as I thought it would

My wife recently bought me a 75" LG for the garden (for watching when in the hot tub). It had awful effect on screen, like whiteish smudges, but I've managed to get rid of it. Loosened the screws a smidge and massaged it out to the edges with microfiber cloth and pure distilled water.

thanks Caleb, that was very enlightening !!

My TCL 75R646 had really bad DSE that looked like a target. Loosening the screws almost completly removed it. Not like the loosening in the stock footage shown but just a 1/4 to a 1/2 turn. Could hear the plastic backing release stress.

DSE is why I sold my Samdung QLED and switched to OLED permanently now. Regardless how good the TV is, if the DSE is noticeable it ruins it.

Also my DSE was only noticeable when in horizontal panning shots of mostly same tone backgrounds like snow scenes or desert scenes. My Hisense did not have any DSE with static single tone backgrounds. So your test pattern static color backgrounds would not reveal the kind of DSE a lot of TVs have.

I thought it was because my Vizio was getting old. Good to know even newer TVs have this issue. However my new Hisense is perfect, just a tiny bit in the extreme corners. Test made me feel good.

Would love to see something like this done on blooming. I bought the x950h at85in after your glowing review. While it does a lot right. Not great for dark room viewing as blooming is distracting

Love this video would love to hear and see more videos explaining different problems with televisions

Great post! I’ve used DSE tests before and I’m happy to say my 65” Sony a90j is very clean! Love your content…thanks!

Hey Caleb, i know you don’t comment or make videos on lower tier TVs but i thought i’d give it a shot. Can you give your recommendation (only for picture quality) between LG Nano85 and Samsung Qled 77. I’m thinking 75” for both and gaming isn’t a must. A comment of which TV you think is best would suffice. Thank you!

Oof. Retailers are going to love you for all the returns this could cause from people nit picking their TV with test patterns. If you don't see this in normal content I wouldn't worry about it. There is rarely a perfect TV when mass manufacturing.

Problems due to age can be the LEDs going bad. This is repairable, though substantial. Symptoms include dark areas all the time, also they can go purple or lose lenses, looking like there's a light inside. NON-backlight problems include LCD "the glass" aging which might look dark and bruised in areas only on dark scenes.

My parrents had an LG LED LCD TV and it had a big amout of DSE. They didn't notice it untill I said it. While they had noticed the shadows they tought it was was something the TV shows added in. So we bought a new Hisense QLED TV and could emidialty noitice the diffrence. It was huge. I found out that the DSE was a common problem for the LG model we had. It was caused by some of the LEDs in the backlight being blue

Guys if u didn’t notice it before watching this video then that’s not a problem don’t stress over things that aren’t

watching this, when the warning came about DSE, best thing ever, and DELL, you go gurl on your quality control, my old DELL passed with flying colors

Thanks so much found your video helpful however when buying my new 4K tv in 2019 I knew nothing of this DSE or blooming. The blooming was so bad when watching anything with a lot of dark scenes I couldn’t watch it. I would see white lines dance across the screen. Now idk what happened now the blooming seems to be gone. I have a LG 55 inch Nano Cell 4K tv I got in 2019.

We just bought an LG 65 inch QNED90 from Best Buy. Put the Stanley Cup game on and the DSE was terrible. Vertical lines every 4 inches. It was driving me crazy, but my husband couldn't see it at all. I turned it off and went and watched on our old Samsung 48" and realized that tv had a lot of graying issues too, but I just never saw it. Went back to BB today and bought a Samsung 55" Q70A. We realized that the 65" was just too big for our living room and I hope this one doesn't have the DSE. We always liked Samsung and should have went with it to begin with. Thanks for the great video. I couldn't unsee it, so back it goes.

You helped me a lot! I bought a Samsung TV not long ago. I noticed that on a black screen you see some different light from the sides. Nothing serious, I seem to have won a good place in the lottery 😅

We just purchased a 55” Sony X89J (UK equivalent to the X85J) and it’s got DSE all along the top and bottom edges as well as vignetting in all 4 corners. The Vignetting doesn’t really bother me as it’s not noticeable on anything but test slides but the DSE along the top and bottom is visible when watching sports. The retailer won’t take it back as DSE does not constitute a fault and Sony have looked and said it’s within tolerance. I’ve had issues in the past with other brands and is why I went with Sony for my last tv and this current one. My previous tv a 55” X70E had no DSE at all this X89J does so I won’t take a Sony TV next time as it seems their quality control has taken a slide. I don’t want to start returning TV’s and playing the panel lottery as this one is just tolerable and the next one could and most likely will be worse. Instead I will just change TV brands next time.

Ok, did the test on a 7 yo Samsung 55” TV and while I saw very slight vignetting and a band near the bottom in your tests, I must say, I have never noticed it in normal usage. And this was not an overpriced TV of its vintage.

I have a Sony FALD set, 55” and fortunately it’s pretty clean. It does have some DSE but I’ve seen a lot worse so accepted it. It’s a few years old now though and I’d like something bigger, but honestly I dread buying a new tv as I seem to be sensitive to all these panel issues, and sending them back is such a pain. I’m planning to make my next “tv” a DLP projector with 3 laser / led light source. After research this seems to be the best tech available at the moment to give a large clean high resolution picture. Ironic really since the tech is decades older than anything in a modern tv.

FACT: And that is why we should NOT be spending lots of money on these "High-End" TV sets that will just ultimately end up getting "Dirty Screen Effect" that cannot be repaired. It is better to just buy a cheap TV and presume it will need to be replaced after a relatively short period of time. It is a shame the TV manufacturers today have such poor quality standards for production.

My Vizio has strobing DSE...I bought it 3 years ago. I tried several things to fix it but I guess it's time for a new TV..YEAH!

That background music vibe

My work LED TV has a single dirty looking, probably dead pixel right in the center that's only obvious on golf and hockey like you've shown. I've been lucky quality wise on all my screens here, none of them exhibit any quality behavior on the entire panel. They are all TCL TVs.

I had this with LG LED TV years ago. I returned it. I had a Toshiba replaced under warranty passed the 30 days prior. I have Kef Q series as well with Onkyo Z series amp with A09J.

I didn’t notice too many spots but during the brighter colors I have a distinct checkerboard pattern on the entire screen. It’s a real bummer but within my exchange window. The consensus in a couple online communities is that it is not normal and that I should replace it.

I only noticed DSE on my 8 year old LG 42. Until I read about what DSE.... Thankfully my 900h, ny LG Cx and my A90J are perfect

I've a 15 year old Pioneer PDP-6010FD 60-Inch 1080p Plasma HDTV, and it still looks great, even on the tests you displayed. Though I'm in the market for a 4k and am looking at the LG G1. Good to know OLED is better at this, but you failed to mention why.

My display just recently starting acting up with this...been good for many years, so guess I was lucky. I use my TV as gaming monitor with my PC. I'm sure that the high backlight settings I used caused problems seeing menu text on left side. First there was the flashing, forcing me to turn the backlight down to no higher than 61. Then, on my computer, under settings, display, personalization, I switched to Black Background and HIGH CONTRAST Setting which HELPED A LOT! I guess this setting is typically used for vision impaired people. Tremendous improvement. My TV is a Vizio E55-UDO LED 4K my next will be and OLED 55 inch LG probably.

Excellent video. Very helpful!!! Thanks

I have an old discontinued Black Friday deal 55' RCA 4K TV. I did a couple DSE tests just now and sure enough my TV suffers from it, ALOT, the screen is a blotchy mess also with the dark spots in all 4 corners. I did just order a Hisense U8H 55 inch last night though. It's scheduled to be delivered on Monday and the first thing I'm gonna do once i get it set up is do these DSE tests on it too.

DSE is quality control outsourced to the customer.

Tested on my Samsung 27" display (28E590D), 3 or 4 years old, not sure, and the results seemed fine :) Thanks for that video.

In your experience, are some brands more susceptible to DSE than others? For example, are LG panels more likely to have DSE than Sony panels?

"THANKS A MILLION", Good one 👍 Caleb

Nice, I noticed a patch of DSE on the lower left side of my TCL but never knew what it was, this puts me oddly at peace. It's just how it is, I didn't do something wrong and it doesn't seem to be increasing with time.

I noticed some severe DSE (horizontal banding) on my 55" Hisense U7QF (H8G equivalent panel I believe). I tried to exchange it within a week of purchase, but the store I bought it wouldn't budge. So I'm stuck with it now. I don't see it as much in regular content, but since buying an Xbox I notice it a lot on the Xbox menus. It's also very apparent in vertical panning shots. The TV is really bright for its price class though, so HDR generally looks great, so for the price I guess I can't have everything.

Samsung Samsung Samsung. I think backlights volume also affects this but mainly QA systems that don't want to throw away poorly manufactured panels, instead sell them and hope for the best. mini led seems to exhibit this issue and for me the price of the panel means nothing I've had top tier TVs Samsung q9fn have it.

Recently purchased a Samsung 85" Qn800a For the theater room and a 75" QN90A for the living room. Had to play the panel lottery once in both rooms and ended up with 2 good screens. The 85" qn800a Only had a faint DSE spot. But was suffering from an audio issue. The QN90A in the living room was bad it had DSE throughout the screen, But both are perfect now... 🤞🏾🤞🏾 If I would've gotten another bad screen I was switching to Oleds for sure.

DUDE! Been looking online on WTF I've been seeing when I have solid backgrounds on my tv. I have vertical banding, fortunately it's on the subtle side and only noticeable on solid backgrounds. I simply can't spot it on moving pictures or on images with lots of various colors or textures. Sony X90J 65" Sadly I'm past the 30 day mark. Otherwise this is an excellent tv and performs well for gaming and movies. Glad you posted this video!!!

What makes me mad with DSE is that it seems to be getting worse. I watch TVs from ten years ago that have no issues. Now, you can’t find a set that doesn’t have it and I am talking flagship models. It angers me when I get a QN90A that has it but then I go to a sports bar or the school I teach at that both have cheaper tv panels mounted to the wall and they have no noticeable issues.

Unless you see some serious issue with your screen while watching normal content. I wouldn’t go looking for DSE. Before everyone jump me, here is my main reasoning. A lot of time, you won’t even notice DSE if it’s not bad. But if you look for it, and even if it’s not even severe, a lot of time you can’t unsee it.

Recently got a samsung qn800a 8k. Has a bit of DSE or vignetting in the corners, not noticeable unless the screen is displaying solid bright colours like blue skies. A bit of a bummer that something that cost a decent penny has that kind of annoying imperfection.

I have Sony a8g oled sometimes while watching Disney + content (mostly marvel) the pictures lags what should I do?

my sony xg9505 is completely fine. Cant see any dse. New lg qned91 is like a curtain its so bad dse and so distracting ive returned it.

I have just slight DSE in the corners but right at the edges.... Honestly I'm glad to have that over some other kinda of DSE since it doesnt really effect me watching content unless I'm actively looking for it... Otherwise my panel is perfect...I would rather have it off to the sides than right in the middle of the screen any day...

I have dirty screen effect on my 950g, will geek squad allow me to replace it

I knew about DSE when I purchased my last LCD TV, the 2018 TCL 65" 6 series. I happened to win the 'panel lottery'. I have a tiny bit of vignetting, but it's very minor. My panel is exceptionally uniform. I can't see anything. I've run all of the tests to try and show DSE, and my panel is perfect. Am I lucky, or do most get good tv's?

My current TV has a lot of DSE it’s a Vizio I bought like 5-6 years ago. I’m in the market to buy a new TV just waiting to see what drops this year.

Most if not all "DSE" that develop on LCD screens with time in form of uneven darker areas is just dust on the reflector that made it's way inside due to the movement of hot air from leds and can be fixed by partially disassembling the TV and simple cleaning. Too bad lazy servicemen often don't want to do it, but aside from need to carefully remove LCD panel (which is not that terribly fragile btw) - it's not very hard. But in my experience - just about every LCD TV will start to collect visible patches of dust inside in about 2-3 years max. Irony of the situation is that OLEDs are free from this problem but suffer from burn in with very similar effect...

Guess I won the lottery with my 75" Samsung Q90A. Couldn't see anything.

Thats what my TV has. I thought it was a physical dirt. But no matter how I tried to clean it, using a tv screen cleaner, it doenst go away. Mine is super apparent when the background is white.

I just bought an LG UP7750 and it shows DSE in the form of vertical bands. What's interesting, though, is that the DSE pattern looks substantially more pronounced and less regular when showing the WebOS splash screen as it turns on. To me, this is showing the real nature of DSE. DSE is inevitable due to panel irregularities as mentioned in the video, but manufacturers calibrate the displays at manufacture by measuring the irregularities and correcting them in software. I believe when a consumer sees DSE in their TVs, it's a defect in calibration. It should be possible to recalibrate the screens to compensate for any residual DSE - I wish tech service providers offered that service, because it would completely fix this problem. That's assuming accurate calibration is possible, maybe the tools to precisely calibrate DSE out are out of reach for budget TVs. Anyway... food for thought.

My x95j has terrible DSE when panning on golf or football , it's like a grid pattern , pq apart from that is excellent tbh , blooming not an issue

Have not seen this with my Samsung TVs but EVERY TCL TV I've ever had has this issue in a big way. So much so that I now refuse to buy TCL tvs. I'm down to one TCL that is just in my office so it doesn't matter too much, but I certainly won't replace it with another TCL... Big ol dark stripe right in the middle!

Purchased 3 Samsung tvs in a row that had DSE. Returned each. So frustrated and don’t want to buy another tv.

ha, I'm glad you gave me an acronym to use, seen it a lot