OLED Screen Uniformity Discussion-Banding and Vignetting - Page 294 - AVS Forum | Home Theater Discussions And Reviews
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post #8791 of 9259 Old 05-15-2020, 06:02 AM
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Quote:
Originally Posted by Fonzerrelli View Post
My CX definitely has tinting on the edges that show up. Luckily it’s something I have to look hard for, so it doesn’t bother me at all.


Sent from my iPhone using Tapatalk
But i'll bet it's nothing like the tinting we saw on the 2019 panels!

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post #8792 of 9259 Old 05-15-2020, 08:14 AM - Thread Starter
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Quote:
Originally Posted by jrref View Post
But i'll bet it's nothing like the tinting we saw on the 2019 panels!
Hopefully it’s a trend that will continues but was 2019 just worse than 2017-2018 and we’re back to those 17-18 levels? If that’s the case I guess it’s better but I’m not jumping to buy just yet.

By the way, hope all is well with you and everyone here at AVS. I also hope Rob is good and weathers this horrible business situation and stays open. I was planning on a New York trip with two friends this summer (hopefully the fall now) to do a audio/video store trip among other things and was definitely visiting VE to hopefully meet you guys.
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post #8793 of 9259 Old 05-15-2020, 09:28 AM
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Tint is only a panel lottery my W8 is preety good n the C9 is preety good. No pink tint at all.
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post #8794 of 9259 Old 05-15-2020, 09:33 AM
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Quote:
Originally Posted by BigBlue83 View Post
Took a few shots of the uniformity on my 77”GX. Looks a lot cleaner than my 77A9G I exchanged for it.
Edit after those second pictures ... its not one You want to keep.

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post #8795 of 9259 Old 05-15-2020, 11:41 AM
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Quote:
Originally Posted by BigBlue83 View Post
Took a few shots of the uniformity on my 77”GX. Looks a lot cleaner than my 77A9G I exchanged for it.
So very jealous of that panel cleanliness. I have until March to trigger warranty replacement on my bandy 3D monster of the same size (reminder of my specimen at around 6k hours is attached below, taken back in March). I would actually prefer a refund than risk getting something equally, if not more, ugly, but I'm not sure I can get that lucky.
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post #8796 of 9259 Old 05-15-2020, 01:45 PM
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Originally Posted by xsamx View Post
Tint is only a panel lottery my W8 is preety good n the C9 is preety good. No pink tint at all.

From looking at my posted panel slides, I think you are on to something.

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post #8797 of 9259 Old 05-15-2020, 02:35 PM
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Quote:
Originally Posted by BigBlue83 View Post
Took a few shots of the uniformity on my 77”GX. Looks a lot cleaner than my 77A9G I exchanged for it.
They mostly all look like yours at that luminance level. Take a picture of ISF Dark at 5% and post it please.

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post #8798 of 9259 Old 05-15-2020, 04:23 PM
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Quote:
Originally Posted by jrref View Post
They mostly all look like yours at that luminance level. Take a picture of ISF Dark at 5% and post it please.
And make sure the OLED light is set between 25 and 35.
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post #8799 of 9259 Old 05-15-2020, 08:41 PM
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Now that darkness has fallen, I do see it's a bit brighter than should be to analyze. Nevertheless, my 10% also looks notably worse.
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post #8800 of 9259 Old 05-15-2020, 09:18 PM
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Quote:
Originally Posted by jrref View Post
Quote:
Originally Posted by BigBlue83 View Post
Took a few shots of the uniformity on my 77â€ÂGX. Looks a lot cleaner than my 77A9G I exchanged for it.
They mostly all look like yours at that luminance level. Take a picture of ISF Dark at 5% and post it please.
77”GX
2% 5% and 10%
ISF dark room
OLED Light 30
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post #8801 of 9259 Old 05-15-2020, 09:28 PM
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Quote:
Originally Posted by BigBlue83 View Post
2% 5% and 10%
ISF dark room
OLED Light 30
Edit....


My 77A9G and new 65A8H do not have those three hard bands at 2 and 5%. Thanks for the snaps though.

Last edited by D-Nice; 05-16-2020 at 05:49 AM.
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post #8802 of 9259 Old 05-15-2020, 11:47 PM
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Why Lg lol is it still a panel lottery

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post #8803 of 9259 Old 05-16-2020, 05:35 AM - Thread Starter
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Looking more and more like my A1E stays on the wall for another year.

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post #8804 of 9259 Old 05-16-2020, 05:56 AM
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Quote:
Originally Posted by D-Nice View Post
Edit....


My 77A9G and new 65A8H do not have those three hard bands at 2 and 5%. Thanks for the snaps though.
I've not seen this either but i'm sure there are going to be variations between panels.

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post #8805 of 9259 Old 05-16-2020, 06:51 AM
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Quote:
Originally Posted by D-Nice View Post
Quote:
Originally Posted by BigBlue83 View Post
2% 5% and 10%
ISF dark room
OLED Light 30
Edit....


My 77A9G and new 65A8H do not have those three hard bands at 2 and 5%. Thanks for the snaps though.
It’s kinda bright but this was on my A9G. It’s had the same banding. The A9G and the GX has Apr 2020 build dates
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post #8806 of 9259 Old 05-16-2020, 07:15 AM
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Quote:
Originally Posted by BigBlue83 View Post
Took a few shots of the uniformity on my 77”GX. Looks a lot cleaner than my 77A9G I exchanged for it.
Quote:
Originally Posted by BigBlue83 View Post
77”GX
2% 5% and 10%
ISF dark room
OLED Light 30
Are the photos in both of these posts from the same TV?
If so, it looks to me a lot like all this is depending a lot of about test patterns used (some of them are too bright despite of percentage they say), TV settings, room conditions during testing, what camera was used and very importantly the photographing skills of the person who took them.
I mean all the photos in above posts look a lot like mine, it can look good and it can look bad and I'm afraid that those who find image not clean enough (like me) are never completely happy with these. I considered those happy, who simply do not notice anything wrong with these.
Surely there are some very bad units out there pretty much all find unacceptable but in general I tend to think what I said above.
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post #8807 of 9259 Old 05-16-2020, 07:41 AM
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Quote:
Originally Posted by D-Nice View Post
Edit....


My 77A9G and new 65A8H do not have those three hard bands at 2 and 5%. Thanks for the snaps though.
Are those random units bought from the shops selling these, or were they sent for you as samples?
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post #8808 of 9259 Old 05-16-2020, 08:08 AM
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Are those random units bought from the shops selling these, or were they sent for you as samples?
I always buy my stuff. I do not trust manufacturer provided units.
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post #8809 of 9259 Old 05-16-2020, 08:20 AM
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I always buy my stuff. I do not trust manufacturer provided units.
OK that's good to know. I guess you are one of the lucky ones then.
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post #8810 of 9259 Old 05-16-2020, 12:17 PM
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Quote:
Originally Posted by BigBlue83 View Post
It’s kinda bright but this was on my A9G. It’s had the same banding. The A9G and the GX has Apr 2020 build dates
The A9G looks very similar to your GX.
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post #8811 of 9259 Old 05-16-2020, 12:27 PM
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Quote:
Originally Posted by D-Nice View Post
Edit....


My 77A9G and new 65A8H do not have those three hard bands at 2 and 5%. Thanks for the snaps though.
Mine don't either. Not even close (phew!) - even with my camera shots.
Not sure how I got soooo lucky with this Costco 65 AUA version. NOT my life experience.

Perhaps my monthly offerings of grain, herbs, and old tv remotes to the "Panel Gods" has finally paid off.

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post #8812 of 9259 Old 05-16-2020, 12:47 PM
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Quote:
Originally Posted by Big Lebowski View Post
Are the photos in both of these posts from the same TV?
If so, it looks to me a lot like all this is depending a lot of about test patterns used (some of them are too bright despite of percentage they say), TV settings, room conditions during testing, what camera was used and very importantly the photographing skills of the person who took them.
I mean all the photos in above posts look a lot like mine, it can look good and it can look bad and I'm afraid that those who find image not clean enough (like me) are never completely happy with these. I considered those happy, who simply do not notice anything wrong with these.
Surely there are some very bad units out there pretty much all find unacceptable but in general I tend to think what I said above.
The KEY is getting the slides to "mirror" what the eye is seeing in low light with regard to the very same slides.

Having a slide look "better" than what our eyes are actually resolving in low light is meaningless.
At the same time, if the slides look worse than what we can see with our eyes, that is also a meaningless fool's errand.

This isn't about "look what using the recommended AVS settings finally UNCOVERED!. They were "hiding" this whole time!"

More isn't "always" more. You can clean your dirty carpet and have it smell perfect to you. Your DOG will disagree. He's "forgotten" more smells than you will smell over your entire life. The dog isn't smelling "phantom" things and the camera isn't picking up false uniformity issues. But I'm not going to let my dogs greater sense of smell and my camera's superior sensor determine whether or not my carpet and my panel is actually clean or not.

I smell the carpet and I watch the tv in low light; Not my DOG. Not my CAMERA.

We are attempting to have a camera resolve what we are actually seeing. Nothing more and nothing less.
Yes, we don't calibrate our tvs with our eyes alone. But don't be tempted to make your camera an integral part of uniformity.
The captures should only serve as something to share with the AVS community. Nothing more. Just make sure they "match" what your eyes are seeing at home.

If BigBlue83's recaptured slides with the "better" exposure settings is showing what his eye is seeing, fine. (Sad face goes here). But if these new captures are showing "more" than what he was originally seeing, they are meaningless.

In the end, his panel might not be near as uniform as mine. But if his eyes are seeing the same thing he originally posted, I'd grab his set and never let it out of my sight and keep the original enthusiasm we all had about his panel.
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post #8813 of 9259 Old 05-16-2020, 01:21 PM
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Frankly, using the recommended settings and slides on page 1 with my assortment of consumer grade flagship smartphone cams over the years (starting with the first OLED in 2014), the photos I've taken have pretty well matched the uniformity anomalies I'm able to detect in person.
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post #8814 of 9259 Old 05-17-2020, 12:18 AM
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A 77 oled seems to be the biggest oled panel lottery risk one can take. (Not inc the 88)
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post #8815 of 9259 Old 05-17-2020, 08:09 AM
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Quote:
Originally Posted by Sargon 1 View Post
The KEY is getting the slides to "mirror" what the eye is seeing in low light with regard to the very same slides.

Having a slide look "better" than what our eyes are actually resolving in low light is meaningless.
At the same time, if the slides look worse than what we can see with our eyes, that is also a meaningless fool's errand.

This isn't about "look what using the recommended AVS settings finally UNCOVERED!. They were "hiding" this whole time!"

More isn't "always" more. You can clean your dirty carpet and have it smell perfect to you. Your DOG will disagree. He's "forgotten" more smells than you will smell over your entire life. The dog isn't smelling "phantom" things and the camera isn't picking up false uniformity issues. But I'm not going to let my dogs greater sense of smell and my camera's superior sensor determine whether or not my carpet and my panel is actually clean or not.

I smell the carpet and I watch the tv in low light; Not my DOG. Not my CAMERA.

We are attempting to have a camera resolve what we are actually seeing. Nothing more and nothing less.
Yes, we don't calibrate our tvs with our eyes alone. But don't be tempted to make your camera an integral part of uniformity.
The captures should only serve as something to share with the AVS community. Nothing more. Just make sure they "match" what your eyes are seeing at home.

If BigBlue83's recaptured slides with the "better" exposure settings is showing what his eye is seeing, fine. (Sad face goes here). But if these new captures are showing "more" than what he was originally seeing, they are meaningless.

In the end, his panel might not be near as uniform as mine. But if his eyes are seeing the same thing he originally posted, I'd grab his set and never let it out of my sight and keep the original enthusiasm we all had about his panel.
Yeah, that's what I was meaning. My point was that the last darker set of pictures looked more about correct brightness level for 5% and probably more accurate than very bright photos of the first set where the panel looked perfect...
Anyway, mine has very much the similar look as in the latter darker photos but again if I use brighter settings in TV and/or camera, it looks like in the brighter photos mentioned. Just wondering if most panels look like that and it is more about depending all these variables. I guess the truth is somewhere along these.
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post #8816 of 9259 Old 05-17-2020, 04:07 PM
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For those who have not checked the Sony A8H thread, some promising results linked below. Hopefully a trend and not just an isolated anomaly. If anyone else buys one, please share your results.

Quote:
Originally Posted by D-Nice View Post
I must say via eyeballing, this is the cleanest 65” WRGB OLED I have ever seen. WOW! From 0.5%-100% is bliss. Very thin bands do exist between 0.5% and 3% stimuli but no better or worse than the 55” models from Sony and LG. I’m very impressed with this sample’s uniformity.
Quote:
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Uniformity is very, very good on this unit. There are two dark patches on the left of the screen visible with 0.5 and 1% stimuli full field patterns but they are not obtrusive. Slight vignetting on right edge of unit from top to bottom. Zero tinting with 50-100% stimuli full field white patterns.
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post #8817 of 9259 Old 05-18-2020, 05:50 AM
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I have an interesting observation on my CX. OOTB it had a lot of screen retention so I did one pixel refresh which fixed that but at 5% it had a slight dark i'll call it a blob in the center of the screen that wouldn't go away with additional panel refreshes. Interestingly, no vignetting at lower IREs and I couldn't see this blob in content no matter how hard I tried to find it. After about 200 hours, it was gone. In addition, I know i'm going to regret reporting this, at 100% white, I could see a slight magenta tint about 1/4 the way up the screen horizontally. Again over time this has been disappearing. I know this goes against everything I know about banding and tinting which is why i'm reporting it. I got a second CX to see how that looked and it had some slight tinting as well but wasn't as bright at the first set.

I'm going to see how this goes because another interesting observations is I can't see this slight tinting with content. How's that possible? IDK. On every set I've ever calibrated, I've never seen a set with full white 100% patch be absolutely perfect white even though I trust D-Nice and other's reports. There is always some imperfections in the consistency of white. Maybe it's my eyes, not sure. But the one thing I can say for certain, whatever tinting these 2020 panels have, it's way fainter and significantly less noticeable than what we saw on the 2019 panels. I have a ton of 65 CXs to calibrate at the store so i'm eager to see how they look.
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post #8818 of 9259 Old 05-18-2020, 10:40 AM
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For those with an OLED TV and living in the UK, are there any burn-in protection warranties I could purchase? I'm torn between the upcoming XH90 and the LG C9 for gaming, but I'm concerned with any potential issues that could arise with the latter.
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post #8819 of 9259 Old 05-18-2020, 11:09 AM
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If you have calibration equipment, why rely on your eyes to determine if it has tinting? Just place your sensor in several spots (similar to ANSI checkerboard) and take some readings.
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post #8820 of 9259 Old 05-18-2020, 11:48 AM
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Quote:
Originally Posted by jukula84 View Post
Quote:
Originally Posted by NetQvist View Post
Quote:
Originally Posted by Video Auteur View Post
Yeah, it's a hassle, but if your retailer is offering you an exchange, go for it. With the hours on your set, that dark spot is likely permanent. If you're noticing it now, you'll soon be grinding your teeth. I bet you'll do better next time around.

I'll never buy an OLED from a retailer that won't exchange it if it has a problem such as this. Where did you purchase it?

Finnish retailer that is quite large here, Verkkokauppa. Ordered it on 14.4 and received it the Friday after so 17.4 and I still have a 20+ days return.


So ****ed that I managed to go 2 weeks without noticing the issue, but dark room for horror show + Haunting of Hill House with its slow panning shots in the dark made me notice that something was really off on the left of the screen because there was a damned black hole sucking away detail in so many scenes. Doesn't help that I'm seeing a pretty nasty banding issue on the right of the dark patch in brighter camera pans now also....


Now I'm mostly trying to figure out how to repackage the damn thing, just unpackaging it was horrible. Current plan is to just put the white sheet cover back over it and perhaps something else on the front of the screen like that kitchen plastic and then just duct tape the entire thing original box together like crazy. I both dislike and like this box design where the bottom just comes out of the top but you had to cut the plastic straps around it to open it so and I don't really have anything similar that would be strong enough.
I bought my C9 from verkkokauppa.com too and have a almost identical problem with my unit. Im about to return it for an exchange. Never have have noticed anything In movies so far, only In games it shows up.
I bought my 65GX in Europe and also an identical problem over here. This big black spot on the left side of the screen is visible on all (normal) content during dark grey scenes. The second photo is made with my iPhone 8 when watching episode 1 of “a night on earth”.
TV has been running about 40 hours. No improvement is visible after several auto compensation cycles and one manual pixel refresher. Oled, perfect black? What a disappointment this is.
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Reply OLED Technology and Flat Panels General

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burn-in , compensation , correction , oled , uniformity

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