OLED Screen Uniformity Discussion-Banding and Vignetting - Page 249 - AVS Forum | Home Theater Discussions And Reviews
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post #7441 of 7546 Old 07-17-2019, 08:14 AM
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Quote:
Originally Posted by bogardon View Post
Do you know if tinting will go away with time? Here's another pic after using it for a few more hours:
Tint doesn't really change, some people say they see a slight improvement but it'll never go away. Here's a video I stumbled upon a while ago that will really show the extent of red tint.

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post #7442 of 7546 Old 07-17-2019, 10:49 AM
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Originally Posted by guitarguy316 View Post
Tint doesn't really change, some people say they see a slight improvement but it'll never go away. Here's a video I stumbled upon a while ago that will really show the extent of red tint.

https://youtu.be/kgfR4LJEgVI
That doesn't look so bad, hopefully I'll just forget about it as time goes on. That said, I found that the red tint (dis)appears depending on the viewing angle...
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post #7443 of 7546 Old 07-17-2019, 10:58 AM
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Quote:
Originally Posted by bogardon View Post
Quote:
Originally Posted by guitarguy316 View Post
Tint doesn't really change, some people say they see a slight improvement but it'll never go away. Here's a video I stumbled upon a while ago that will really show the extent of red tint.

https://youtu.be/kgfR4LJEgVI
That doesn't look so bad, hopefully I'll just forget about it as time goes on. That said, I found that the red tint (dis)appears depending on the viewing angle...
Yeah it doesn’t depending on how left or right you go, or up and down angles looking at the panel. For 2019 models both LG and Sony this is the norm, some are better and some are worse but earth tones is where it really sticks out.
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post #7444 of 7546 Old 07-17-2019, 11:28 AM
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Tinting and oled is so common. I’ve had 4 diff models over the years 55 65 and 77 and a number of exchanges and they all showed some kind of tinting. Some worst then others. I think my 65 had the worst tinting and my 55 b7 the least.
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post #7445 of 7546 Old 07-17-2019, 02:53 PM
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Quote:
Originally Posted by bogardon View Post
Do you know if tinting will go away with time? Here's another pic after using it for a few more hours:
It does not go away. Watching a classic like 'Lawrence Of Arabia' on that set would be painful IME. Ask me how I know .... :>/
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post #7446 of 7546 Old 07-18-2019, 05:19 AM - Thread Starter
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Originally Posted by zeromothra View Post
It does not go away. Watching a classic like 'Lawrence Of Arabia' on that set would be painful IME. Ask me how I know .... :>/
Yellow tint kind of kills the joy of watching a black & white movie too. It is what it is. I just wish I didn't spend so much for the joy.

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post #7447 of 7546 Old 07-18-2019, 01:34 PM
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Is it known if the tinting thing is a result of (only) an outer antireflective coating, or something more intrinsic to the panel construction or design? I watch enough B&W material that I'm at least as concerned (if not more) about the tint issue as I am the banding issue.
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post #7448 of 7546 Old 07-18-2019, 03:57 PM
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My 100% white after calibration.
My 5% after 150,200 hours.

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post #7449 of 7546 Old 07-18-2019, 05:02 PM
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Originally Posted by Toto84 View Post
My 100% white after calibration.
My 5% after 150,200 hours.

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Did you notice a change in tint from prior to calibration?

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post #7450 of 7546 Old 07-18-2019, 07:45 PM
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I recently bought a A8G and have used it for about 35 hours. What are your thoughts and is it a keeper?
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post #7451 of 7546 Old 07-18-2019, 08:12 PM
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That's another good looking 2019 panel. The blotchy spots should clear up a bit more, but I'm assuming they're already not visible in regular content.

I received an A1E yesterday and it has terrible uniformity compared to my C9. Much worse tinting and banding.

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post #7452 of 7546 Old 07-18-2019, 08:31 PM
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Originally Posted by Yukon Trooper View Post
That's another good looking 2019 panel. The blotchy spots should clear up a bit more, but I'm assuming they're already not visible in regular content.

I received an A1E yesterday and it has terrible uniformity compared to my C9. Much worse tinting and banding.

Thank you! Being as I am kind of new to OLED's, how long does it usually take for a panel to stabilize and not go through many changes? I assume you were implying that possibly the blotchy spots could fade away after more hours of TV use.
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post #7453 of 7546 Old 07-18-2019, 08:35 PM - Thread Starter
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Originally Posted by Starrahboy View Post
Thank you! Being as I am kind of new to OLED's, how long does it usually take for a panel to stabilize and not go through many changes? I assume you were implying that possibly the blotchy spots could fade away after more hours of TV use.
Probably after a couple of hundred hours or so you’ll know what you have.

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post #7454 of 7546 Old 07-19-2019, 03:37 AM - Thread Starter
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Quote:
Originally Posted by Number_6 View Post
Is it known if the tinting thing is a result of (only) an outer antireflective coating, or something more intrinsic to the panel construction or design? I watch enough B&W material that I'm at least as concerned (if not more) about the tint issue as I am the banding issue.
I can’t be sure without searching it, but for some reason I think I remember D-Nice saying that it’s panel construction and not the coating. I could be wrong so if anyone is willing to peel off their coating so we can end the debate I’m all ears...er...eyes.

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post #7455 of 7546 Old 07-19-2019, 03:59 AM
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Quote:
Originally Posted by Number_6 View Post
Is it known if the tinting thing is a result of (only) an outer antireflective coating, or something more intrinsic to the panel construction or design? I watch enough B&W material that I'm at least as concerned (if not more) about the tint issue as I am the banding issue.
I'm in doubt that antireflective coating is a cause of tint. I think it's a panel lottery or may be some difference in production parties. I have 65B8PLA right now and was 55B8S owner in half of year ago. They are different definitely. 55BS had some green tint in white color and mild banding. 65B8PLA has good white color without any tint at all and banding is not existent almost.
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post #7456 of 7546 Old 07-19-2019, 04:40 AM
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Seat position definitely effects tint on my 65C8.
I sit just left of centre and get a tiny bit of yellow left third, blue right third. If I sit right off centre I get the opposite.
Hardly noticeable, maybe tad more with grass in soccer and the golf Open I'm watching now.
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post #7457 of 7546 Old 07-19-2019, 01:28 PM
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Quote:
Originally Posted by npsacobra View Post
Did you notice a change in tint from prior to calibration?

Sent from my SM-N950U using Tapatalk
Always when you calibrate

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post #7458 of 7546 Old 07-19-2019, 05:28 PM
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Originally Posted by Toto84 View Post
Always when you calibrate

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??? ... I can't imagine calibrating effecting panel tint (which is a physical manufacturing flaw...the adhesives drying I think I've read).
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post #7459 of 7546 Old 07-19-2019, 05:55 PM
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You can't change tint by calibrating in any way...
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post #7460 of 7546 Old 07-20-2019, 12:23 AM
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I'm happy with the results of my TV, there is a little bit of banding but it's not noticeable with normal usage

LG OLED65C8
About 200 hours of time in.
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post #7461 of 7546 Old 07-20-2019, 01:24 AM
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Quote:
Originally Posted by VidPro View Post
I can’t be sure without searching it, but for some reason I think I remember D-Nice saying that it’s panel construction and not the coating. I could be wrong so if anyone is willing to peel off their coating so we can end the debate I’m all ears...er...eyes.
IIRC something to do with uneven evaporation when stacking the emissive layers of the OLED panel. Hopefully something fixed with jet printed OLED, although new methods will probably come with their own issues.
VidPro and bogardon like this.

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post #7462 of 7546 Old 07-21-2019, 12:30 AM
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Wow. My A1E went from hopeless to excellent on the banding front. I wish the tint would fade the same way!

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post #7463 of 7546 Old 07-21-2019, 04:10 AM - Thread Starter
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Originally Posted by Yukon Trooper View Post
Wow. My A1E went from hopeless to excellent on the banding front. I wish the tint would fade the same way!
Yeah I can stomach the banding now because I barely see it...although this season of Stranger Things seems to be doing what it can to remind me that it still exists. The yellow tint I see all the time. It seemingly varies in intensity except never goes away.

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post #7464 of 7546 Old 07-21-2019, 09:21 AM
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Hi guys!

As per my first post in this thread i mentioned that I on my Sony 65" AF8 could see some color uniformity issues(vignetting) on certain brighter colors like on different shades of yellow.
However i hadn't seen it on any real content until a couple of days ago watching "Breaking Bad" when i loaded up "Season 3 Episode 1 - No Más" and during the intro mexico scene where they have applied this yellow filter in the desert i noticed it quite clearly see a red tint on the left side of the picture, especially during the first 5 seconds of the episode when the camera is panning down over clouds.
It got me thinking if this was something i could live with or if I should use my warranty with the store.

Since my set is still quite new ~280h, i tought it was time to see what "Panel Refresh" could do for both banding, and perhaps this red tint as well(see 20190719_Image1.jpg), well, at least I wouldnt get any surprises after ~1y+ as per Sony's recommendation and still be on manufacturer warranty.
And you know what, I actually believe I do see an improvement to the red tint, it definitely looks more faded than before, and at that point I was leaning towards keeping the set.

However, with that said, after i had run the Panel Refresh on Friday night everything looked ok with a slight improvement to banding as well as the red tint as mentioned above(see 20190720_Image2.jpg)... BUT!
After having a Breaking Bad marathon yesterday(Saturday) i noticed this, see "20190721_Image3.jpg" while loading YouTube app!
Ironically, i loaded YouTube just to have a check for banding on the 5% grey, as I've read you should run the set for a couple of hours before one can see the real result after Panel Refresh, hence the my Breaking Bad marathon ~6h!
I mean holy s***, i thought my set was toasted and went to bed with a bad feeling that I now definetely need to RMA my set... BUT!..

Starting my tv today(Sunday) it seems like it's all gone away over the night!
I can just assume it must have run the automatic refresh and fixed this but I will have to wait until tonight and take some new photos since its impossible to get a good view on it during daylight.

But I just wanted to share how quickly things can get awkward with this banding issue..
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---------------------------------------------------------------------------------------
TV: Sony Bravia KD-65AF8
Projector: Panasonic PT-AX100E
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post #7465 of 7546 Old 07-21-2019, 09:30 AM
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I am in the process of rewatching Breaking Bad on my A9G and have noticed that the desert scenes are true magenta tint torture test. I do see some slight red push on the edges, but it's no worse than expected and is tolerable. I would recommend not viewing 5% slides constantly if you don't notice banding in content, as the frequent changes in uniformity will drive you crazy.
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post #7466 of 7546 Old 07-21-2019, 10:52 AM
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Quote:
Originally Posted by VidPro View Post
Yeah I can stomach the banding now because I barely see it...although this season of Stranger Things seems to be doing what it can to remind me that it still exists. The yellow tint I see all the time. It seemingly varies in intensity except never goes away.
I don't have any of the larger, lighter bands on my C9 or A1E. Only during the most challenging scenes do I faintly notice what looks like minor DSE. Can't say it bothers me at all. I have slight indistinct yellow tinting on my C9, but my A1E has similar yellow tinting flanked by magenta tinting which is noticeable in more content.

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Originally Posted by Cineoholic View Post
Hi guys!

As per my first post in this thread i mentioned that I on my Sony 65" AF8 could see some color uniformity issues(vignetting) on certain brighter colors like on different shades of yellow.
However i hadn't seen it on any real content until a couple of days ago watching "Breaking Bad" when i loaded up "Season 3 Episode 1 - No Más" and during the intro mexico scene where they have applied this yellow filter in the desert i noticed it quite clearly see a red tint on the left side of the picture, especially during the first 5 seconds of the episode when the camera is panning down over clouds.
It got me thinking if this was something i could live with or if I should use my warranty with the store.
If you're noticing color uniformity that infrequently, I'd say you probably have an above average set and there's a good chance you'd end up with something worse in a swap.

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post #7467 of 7546 Old 07-21-2019, 11:19 AM
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Looking through these is tempting me to go back and have a look at some grey slides and participate, but I don't think I can put myself through it again.

I'm on my 4th replacement B8 and my last one was pretty perfect in terms of uniformity but had a fair few too many dead pixels. The replacement I got last month seems to be temperamental, with some sittings not showing any bands whatsoever and overs showing but hardly ever in actual content.

I've done one manual refresh since receiving this replacement at the start of the month. I don't think I've ever given any of my previous models a lot of time to see if they would improve, is this a possibility with time? I watch atleast 4 hours a day.
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post #7468 of 7546 Old 07-21-2019, 12:21 PM
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Quote:
Originally Posted by JD23 View Post
I am in the process of rewatching Breaking Bad on my A9G and have noticed that the desert scenes are true magenta tint torture test. I do see some slight red push on the edges, but it's no worse than expected and is tolerable. I would recommend not viewing 5% slides constantly if you don't notice banding in content, as the frequent changes in uniformity will drive you crazy.
Yep, hence why I shared that sand desert colored video from YouTube last week as a torture test for red tint. If you have red enough tint, it will also make your greens on grass for golf in particular where it’s lighter shades show through.
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post #7469 of 7546 Old 07-21-2019, 04:15 PM
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Here is my first 55C8 after about 35 hours and 1 pixel refresher. What do you guys think, how bad is it? I dont notice it much in content but that picture looks pretty terrible. I'm running out of time to return and I don't know what to do.
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post #7470 of 7546 Old 07-22-2019, 03:51 AM - Thread Starter
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Here is my first 55C8 after about 35 hours and 1 pixel refresher. What do you guys think, how bad is it? I dont notice it much in content but that picture looks pretty terrible. I'm running out of time to return and I don't know what to do.
You really need more hours to see if the screen evens out. Between 35 and say 100 plus hours a lot can change. If you’re running out of time for a return I’d run slides to pick up the pace. Good luck!

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