OLED TVs Hit By Severe Blocking And Flashing Problems Poll - Page 20 - AVS Forum | Home Theater Discussions And Reviews
View Poll Results: Do you see macroblock flashing on your 2018 OLED?
No macroblock flashing on my 2018 LG OLED. 69 36.51%
Macroblock Flashing visible on my 2018 LG OLED. 85 44.97%
No macroblock flashing on my 2018 Sony OLED. 20 10.58%
Macroblock Flashing visible on my 2018 Sony OLED. 8 4.23%
No macroblock flashing on my 2018 Panasonic OLED. 5 2.65%
Macroblock Flashing visible on my 2018 Panasonic OLED. 3 1.59%
No macroblock flashing on my 2018 Philips OLED. 3 1.59%
Macroblock Flashing visible on my 2018 Philips OLED. 4 2.12%
No macroblock flashing on my 2018 Other OLED. 1 0.53%
Macroblock Flashing visible on my 2018 Other OLED. 6 3.17%
Multiple Choice Poll. Voters: 189. You may not vote on this poll

Forum Jump: 
 382Likes
Reply
 
Thread Tools
post #571 of 597 Old 01-04-2020, 10:12 AM
Advanced Member
 
chros73's Avatar
 
Join Date: Jan 2015
Posts: 780
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 489 Post(s)
Liked: 243
Quote:
Originally Posted by Dmitry Pavlov View Post
We left 'Brightness' set to 50, the default value and left 'Sharpness' at 0 since we don't want to add any sharpness. When in 'PC Mode', 'Sharpness' should be set to 20 for no added sharpness or softening.

why does 'PC mode' require Sharpness=20?
Which TV are you referring to?
Regarding to B8, they said something similar at the beginning, and later they rechecked it and said that on a newer firmware the correct value is 0.
I also checked it with PC mode with an image more than half a year ago:
anything above 10 added unneeded sharpness, 0 seems correct. (see my signature for details.)
mrtickleuk likes this.

Ryzen 5 2600,Asus Prime b450-Plus,16GB,MSI GTX 1060 Gaming X 6GB(v385.28),Win10 LTSB 1607,MPC-BEx64+LAV+MadVR,Yamaha RX-A870,LG OLED65B8(04.10.25+PC4:4:[email protected]/24/25/29/30/50/59/60Hz)
chros73 is offline  
Sponsored Links
Advertisement
 
post #572 of 597 Old 01-22-2020, 06:00 PM
Member
 
enphenate's Avatar
 
Join Date: Apr 2008
Posts: 179
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 28 Post(s)
Liked: 10
Has there been a solution or consensus on how to fix the flashing/macroblocking issues? Or is this just a problem with all OLEDs and there isn't anything we can do about it?

I've had my E8 for about two months now and I have started to notice on very dark scenes the TV will kind of flicker or flash and some of the dark areas turn gray for a split second. Should I request LG to swap my panel?
enphenate is offline  
post #573 of 597 Old 01-27-2020, 10:43 AM
Advanced Member
 
teiresias's Avatar
 
Join Date: Jul 2001
Location: Hampton, VA
Posts: 548
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 126 Post(s)
Liked: 52
I know the poll (and perhaps the thread) seems to be focused completely on the 2018 LG OLEDs, but I posted about this in the C9 owners thread, but thought I'd pop in here with some near black flashing I saw on my C9 and could maybe test this particular scene and see what they see.

There is a scene in the Westworld, Season 2 UHD BD, while playing in DV (didn't test with HDR10) that is near black flashing city on my C9 when played back via my Panasonic UB820 through my X3400. I was watching Episode 5 "Akane No Mai" and there's a scene a bit past halfway through with Dolores and Teddy in a dimly lit bedroom having a conversation. It looks like they used either two different film stocks or different exposure because as the scene switches between shots/closeups the picture gets more or less grainy depending on the shot - some shots are very clean, and other shots are so grainy they might be 16mm if I didn't know better.

In any event, on the very grainy shots there is a massive amount of near black flashing to the point of distraction. It's pretty much all over the screen. This particular scene looks to have a good deal of black crush overall though, so it might be a particularly bad example. Like I said, it only happens on the shots in the scene that are very grainy. This is from the discs playing back in Dolby Vision. I played the same scene via my FireTV 4k from the Amazon app (so it's the SDR version) and the near black flashing isn't there (to be expected).

LG C9
Denon X3400H | 5.1.2 | Emotiva B1 LR, C1, E1 Surrounds, A1 Atmos
Panasonic UB820
teiresias is offline  
Sponsored Links
Advertisement
 
post #574 of 597 Old 01-27-2020, 10:52 AM
AVS Forum Addicted Member
 
Otto Pylot's Avatar
 
Join Date: May 2004
Location: Bull Mountain, OR
Posts: 16,246
Mentioned: 29 Post(s)
Tagged: 1 Thread(s)
Quoted: 4035 Post(s)
Liked: 2893
Quote:
Originally Posted by enphenate View Post
Has there been a solution or consensus on how to fix the flashing/macroblocking issues? Or is this just a problem with all OLEDs and there isn't anything we can do about it?

I've had my E8 for about two months now and I have started to notice on very dark scenes the TV will kind of flicker or flash and some of the dark areas turn gray for a split second. Should I request LG to swap my panel?

It's not a problem with all OLED's. I have a 65C8 that NEVER exhibited visible flashing with any content or source regardless of the firmware version.

I never trust an atom, they make up everything.
Otto Pylot is online now  
post #575 of 597 Old 01-27-2020, 02:26 PM
AVS Forum Addicted Member
 
fafrd's Avatar
 
Join Date: Jun 2002
Posts: 13,713
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Liked: 5304
Quote:
Originally Posted by Otto Pylot View Post
Quote:
Originally Posted by enphenate View Post
Has there been a solution or consensus on how to fix the flashing/macroblocking issues? Or is this just a problem with all OLEDs and there isn't anything we can do about it?

I've had my E8 for about two months now and I have started to notice on very dark scenes the TV will kind of flicker or flash and some of the dark areas turn gray for a split second. Should I request LG to swap my panel?

It's not a problem with all OLED's. I have a 65C8 that NEVER exhibited visible flashing with any content or source regardless of the firmware version.
I’ll be very interested to see first owner reports of the CX to see whether this flashing issue has finally been truly resolved.

Seems like the C9 and ‘fixed’ C8 have pretty much eliminated the problem, but for anyone still experiencing the issue on one of these WOLEDs, determining the time stamp on an example of content that causes it on a repeatable/consistent basis and emailing those examples to Rtings.com and Vincent Toh of HDTVTEST would be a great way to get an early assessment of how the CX performs in this department.

Also, any example content should be disk-based to eliminate streaming/cable compression and internet performance/hiccups as variables...
fafrd is offline  
post #576 of 597 Old 03-23-2020, 01:12 PM
AVS Forum Special Member
 
hhaller's Avatar
 
Join Date: Jan 2008
Posts: 2,555
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 122 Post(s)
Liked: 66
Westworld season 3 brought me back to this board. Welcome back flashing blacks. Besides my complaint it seems like everything else is pretty quiet around here?
hhaller is offline  
post #577 of 597 Old 03-25-2020, 05:13 PM
Member
 
enphenate's Avatar
 
Join Date: Apr 2008
Posts: 179
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 28 Post(s)
Liked: 10
Quote:
Originally Posted by hhaller View Post
Westworld season 3 brought me back to this board. Welcome back flashing blacks. Besides my complaint it seems like everything else is pretty quiet around here?
I noticed the same during EP2
enphenate is offline  
post #578 of 597 Old 05-28-2020, 03:20 AM - Thread Starter
AVS Forum Special Member
 
Wizziwig's Avatar
 
Join Date: Jul 2001
Location: SoCal, USA
Posts: 3,665
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2348 Post(s)
Liked: 1634
Unfortunately, looks like this issue is still not fully resolved on 2020 models.

Visible flashing demonstrated in recent LG CX review. Looks like a clip from Better Call Saul on Netflix, Season 4, Episode 4, around time offset 44:12. Also noted in episode 5, time offset 45:19. Can someone with a 2020 Sony model like A8H compare their results?

WOLVERNOLE likes this.

Last edited by Wizziwig; 05-28-2020 at 03:32 AM.
Wizziwig is offline  
post #579 of 597 Old 05-28-2020, 03:29 AM
AVS Forum Special Member
 
mrtickleuk's Avatar
 
Join Date: May 2016
Location: Birmingham, UK - you know, the original one!
Posts: 8,943
Mentioned: 222 Post(s)
Tagged: 0 Thread(s)
Quoted: 6223 Post(s)
Liked: 9052
Quote:
Originally Posted by Wizziwig View Post
Unfortunately, looks like this issue is still not resolved on 2020 models.
Yes, I'm really shocked that R-Tings did such a terrible job in their "review" (not so much a review, but just a dumping of stats on a webpage. They might as well have cut and pasted any of the last few year's reviews and changed the figures).

For the last two years we've known you need to measure the 0% - 5% response time and curve. Yet again, they have only measured the 0% - 20% response time. Stupid!

Spoiler!


Last year, we were told that LG could not fix this problem with the White sub-pixel in the hardware, because it was discovered "too late" in 2018 for anything to be done for the 2019 hardware.
There is no such excuse this time. Some of us have been waiting to see what LG Display would do for the 2020 panels, their first chance to fix this.

Remember, the hardware overshoot did not exist in the 2017 panels, yet they have kept this problem exactly the same in the 2020 panels.

The "dithering" is a work-around, not a fix, for the 2018/2019 panels where there was no other choice. If we're told that the dithering is "even better" now, that's a huge diversion. Why haven't they addressed the underlying problem? For 2020, there was supposed to be another choice: a real, hardware, fix so that they were as good as the 2017 panels.

This was R-Ting's chance to highlight this, and they failed spectacularly. It shouldn't be done to random geeks like me to make this graphic to point it out:
Attached Thumbnails
Click image for larger version

Name:	cx-response-time-overshoot.jpg
Views:	214
Size:	80.9 KB
ID:	2733484  
WOLVERNOLE likes this.

_______________
Denon AVR-X4200W, Arcam Alpha 8P; 5.1.4 setup: Mission 702e, M7C1i, 77DS, 731. Rel T5 Sub. Monitor Audio CT165 4 Tops | LG OLED55C8PLA TV | Samsung UBD-K8500 UHD Blu-Ray

HDMI 2.0 4K modes | Dolby & DTS core+outer audio tracks on (UHD) Blu-Rays | Hello to Jason Isaacs

Last edited by mrtickleuk; 05-28-2020 at 03:38 AM.
mrtickleuk is offline  
post #580 of 597 Old 05-28-2020, 03:36 AM - Thread Starter
AVS Forum Special Member
 
Wizziwig's Avatar
 
Join Date: Jul 2001
Location: SoCal, USA
Posts: 3,665
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2348 Post(s)
Liked: 1634
@mrtickleuk , Is the footage from Better Call Saul that Vincent uses in his review from the HDR (I assume Dolby Vision) version?
Wizziwig is offline  
post #581 of 597 Old 05-28-2020, 03:47 AM
AVS Forum Special Member
 
mrtickleuk's Avatar
 
Join Date: May 2016
Location: Birmingham, UK - you know, the original one!
Posts: 8,943
Mentioned: 222 Post(s)
Tagged: 0 Thread(s)
Quoted: 6223 Post(s)
Liked: 9052
Quote:
Originally Posted by Wizziwig View Post
@mrtickleuk , Is the footage from Better Call Saul that Vincent uses in his review from the HDR (I assume Dolby Vision) version?
Congrats on the spotting of where it's from, very impressively detective skills sir!

It's 4K, SDR, here on UK Netflix. And Netflix has slashed their bit-rates across the board (but not their prices), using covid as an excuse, and they have NOT restored them (despite news articles saying that they have - which only makes it more frustrating, but then again, I'm alive and it's not as important as other things). It was "for 30 days" back in March. Checking for me it's showing as 7.62Mbps, 2160p.

I guess that's why Vincent called it "heavily compressed bit-starved content"
WOLVERNOLE likes this.

_______________
Denon AVR-X4200W, Arcam Alpha 8P; 5.1.4 setup: Mission 702e, M7C1i, 77DS, 731. Rel T5 Sub. Monitor Audio CT165 4 Tops | LG OLED55C8PLA TV | Samsung UBD-K8500 UHD Blu-Ray

HDMI 2.0 4K modes | Dolby & DTS core+outer audio tracks on (UHD) Blu-Rays | Hello to Jason Isaacs

Last edited by mrtickleuk; 05-28-2020 at 03:51 AM.
mrtickleuk is offline  
post #582 of 597 Old 05-28-2020, 12:40 PM - Thread Starter
AVS Forum Special Member
 
Wizziwig's Avatar
 
Join Date: Jul 2001
Location: SoCal, USA
Posts: 3,665
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2348 Post(s)
Liked: 1634
Quote:
Originally Posted by mrtickleuk View Post
Congrats on the spotting of where it's from, very impressively detective skills sir!

It's 4K, SDR, here on UK Netflix. And Netflix has slashed their bit-rates across the board (but not their prices), using covid as an excuse, and they have NOT restored them (despite news articles saying that they have - which only makes it more frustrating, but then again, I'm alive and it's not as important as other things). It was "for 30 days" back in March. Checking for me it's showing as 7.62Mbps, 2160p.

I guess that's why Vincent called it "heavily compressed bit-starved content"
So you were able to reproduce the flashing in that scene that Vincent uses in his OLED reviews? What model OLED do you have?

If you want to see how this issue manifests in higher quality reference content, I read that it's also visible in "The Revenant" UHD Disc 1hr16m to 1hr17m28s - flashing macroblocks above the flames on the top right side of the screen that disappear when paused. But I don't remember what TV model and firmware was used for that test.
Wizziwig is offline  
post #583 of 597 Old 05-28-2020, 01:01 PM
AVS Forum Special Member
 
mrtickleuk's Avatar
 
Join Date: May 2016
Location: Birmingham, UK - you know, the original one!
Posts: 8,943
Mentioned: 222 Post(s)
Tagged: 0 Thread(s)
Quoted: 6223 Post(s)
Liked: 9052
Quote:
Originally Posted by Wizziwig View Post
So you were able to reproduce the flashing in that scene that Vincent uses in his OLED reviews? What model OLED do you have?

If you want to see how this issue manifests in higher quality reference content, I read that it's also visible in "The Revenant" UHD Disc 1hr16m to 1hr17m28s - flashing macroblocks above the flames on the top right side of the screen that disappear when paused. But I don't remember what TV model and firmware was used for that test.
I have a C8, as per my sig. Latest firmware and calibrated by me (keeping the LG factory 1DLUT though), so not really representative. I don't see the issue on any real content now, including that scene. Just re-checked The Revenant for you, that's clean too.

I've also used jk82's various test patterns for it in the past before LG developed their dithering work-around, and you'll be pleased to know I've been successful in asking Stacey Spears to include test patterns for this specific issue on his upcoming second disc, so rest assured I am very familiar with the problem
WOLVERNOLE and Wizziwig like this.

_______________
Denon AVR-X4200W, Arcam Alpha 8P; 5.1.4 setup: Mission 702e, M7C1i, 77DS, 731. Rel T5 Sub. Monitor Audio CT165 4 Tops | LG OLED55C8PLA TV | Samsung UBD-K8500 UHD Blu-Ray

HDMI 2.0 4K modes | Dolby & DTS core+outer audio tracks on (UHD) Blu-Rays | Hello to Jason Isaacs
mrtickleuk is offline  
post #584 of 597 Old 05-28-2020, 04:01 PM - Thread Starter
AVS Forum Special Member
 
Wizziwig's Avatar
 
Join Date: Jul 2001
Location: SoCal, USA
Posts: 3,665
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2348 Post(s)
Liked: 1634
Quote:
Originally Posted by mrtickleuk View Post
and you'll be pleased to know I've been successful in asking Stacey Spears to include test patterns for this specific issue on his upcoming second disc, so rest assured I am very familiar with the problem
That's great news. It will put more pressure on all OLED TV manufacturers to resolve this issue. Hopefully the patterns on the new disc will also test for flashing with Panasonic's implementation which jk82 showed was still affected by this issue (contrary to what HDTVTest keeps reporting) and just moved the problem to a brighter color range.
WOLVERNOLE and mrtickleuk like this.
Wizziwig is offline  
post #585 of 597 Old 05-29-2020, 10:49 AM
AVS Forum Special Member
 
Join Date: Jan 2015
Posts: 1,134
Mentioned: 62 Post(s)
Tagged: 0 Thread(s)
Quoted: 1005 Post(s)
Liked: 1094
So, I got rid of both the LG C8 and also the Panasonic GZ2000.

This near-black overshoot is completely ruining the enjoyment of Oled TVs for me. Even if it doesn't show up often, I've learned in what kind of scenes it usually happens and where I need to look, so this crap is always in my head while watching movies.

I know that high-end LCDs are also infested with various issues that will most likely bother me very much so what I did is buy the cheapest crap LCD I could find and live with that until LG display figures out how to manufacture non-faulty oled panels.

It's a 50" TCL with edge-lit VA panel and it cost me less than 1/10 of what I paid for the the C8 and GZ2000.

Of course this thing is a piece of crap but in some ways it's also better than current Oleds.
Wizziwig, chros73 and mrtickleuk like this.
jk82 is offline  
post #586 of 597 Old 05-29-2020, 08:02 PM - Thread Starter
AVS Forum Special Member
 
Wizziwig's Avatar
 
Join Date: Jul 2001
Location: SoCal, USA
Posts: 3,665
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2348 Post(s)
Liked: 1634
Quote:
Originally Posted by jk82 View Post
So, I got rid of both the LG C8 and also the Panasonic GZ2000.
Oh.. that explains why we haven't seen you post much on this sub-forum lately. Your in-depth analysis of OLED performance issues will be missed. It helped raise public awareness of this flashing issue and possibly contributed to getting the current firmware workarounds.

If you could live without 4K or HDR, you could have tried finding a used Plasma. For SDR viewing, they can probably still beat any cheap edge-lit LCD at similar price. Hardest part might be finding one in good condition.
Wizziwig is offline  
post #587 of 597 Old 05-29-2020, 08:20 PM - Thread Starter
AVS Forum Special Member
 
Wizziwig's Avatar
 
Join Date: Jul 2001
Location: SoCal, USA
Posts: 3,665
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2348 Post(s)
Liked: 1634
Looks like the CX does improve on the C9 based on this video analysis of the flashing issue.

Wizziwig is offline  
post #588 of 597 Old 05-30-2020, 03:01 AM
Advanced Member
 
chros73's Avatar
 
Join Date: Jan 2015
Posts: 780
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 489 Post(s)
Liked: 243
Quote:
Originally Posted by Wizziwig View Post
Looks like the CX does improve on the C9 based on this video analysis of the flashing issue.
Maybe it improves a bit, but it's still full of bugs and a stepback from C9. Let alone PC mode that is still crap

What interesting is that I don't mind the occasional macro blocking (probably it's a personal thing) but I do mind the crap PC mode with HDR10 content.
Although I don't play games, but it's a real shame that computer generated grapchic needs to be downsampled (ruined) due to lack of horsepower. That would be unimaginable in the PC world.

Ryzen 5 2600,Asus Prime b450-Plus,16GB,MSI GTX 1060 Gaming X 6GB(v385.28),Win10 LTSB 1607,MPC-BEx64+LAV+MadVR,Yamaha RX-A870,LG OLED65B8(04.10.25+PC4:4:[email protected]/24/25/29/30/50/59/60Hz)

Last edited by chros73; 05-30-2020 at 03:06 AM.
chros73 is offline  
post #589 of 597 Old 05-30-2020, 03:04 AM
AVS Forum Special Member
 
mrtickleuk's Avatar
 
Join Date: May 2016
Location: Birmingham, UK - you know, the original one!
Posts: 8,943
Mentioned: 222 Post(s)
Tagged: 0 Thread(s)
Quoted: 6223 Post(s)
Liked: 9052
Quote:
Originally Posted by Wizziwig View Post
Looks like the CX does improve on the C9 based on this video analysis of the flashing issue.
Yes but I refer you to my post above.

Just imagine how good it would look if they had actually addressed it at the hardware level, and removed the overshoot completely, like they had in 2017.

_______________
Denon AVR-X4200W, Arcam Alpha 8P; 5.1.4 setup: Mission 702e, M7C1i, 77DS, 731. Rel T5 Sub. Monitor Audio CT165 4 Tops | LG OLED55C8PLA TV | Samsung UBD-K8500 UHD Blu-Ray

HDMI 2.0 4K modes | Dolby & DTS core+outer audio tracks on (UHD) Blu-Rays | Hello to Jason Isaacs
mrtickleuk is offline  
post #590 of 597 Old 05-30-2020, 03:15 AM - Thread Starter
AVS Forum Special Member
 
Wizziwig's Avatar
 
Join Date: Jul 2001
Location: SoCal, USA
Posts: 3,665
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2348 Post(s)
Liked: 1634
A hardware-level fix would be nice but will likely require a whole new panel design. The benefit of a hardware solution would be that it would provide a fix to everyone buying panels from LG. Current situation requires each TV manufacturer to come up with their own firmware/processing workaround to hide the problem. Not all TV manufacturers have done that extra work. For those that have tried to fix it, we've seen varying levels of effectiveness. I'm still waiting to see what 2020 Sony models have done. I'm sure HDTVTest will cover it during the A8H review and maybe even do another side-by-side comparison.

Edit: Also a hardware solution would hopefully work in game mode where the software solutions are ineffective according to HDTVTest.
mrtickleuk likes this.
Wizziwig is offline  
post #591 of 597 Old 05-30-2020, 04:01 AM
AVS Forum Special Member
 
mrtickleuk's Avatar
 
Join Date: May 2016
Location: Birmingham, UK - you know, the original one!
Posts: 8,943
Mentioned: 222 Post(s)
Tagged: 0 Thread(s)
Quoted: 6223 Post(s)
Liked: 9052
Quote:
Originally Posted by Wizziwig View Post
A hardware-level fix would be nice but will likely require a whole new panel design.
Exactly, which is why I didn't expect it for 2019 (too late), but it's why I DID expect it for 2020!

(Agreed with everything else you wrote, snipped for brevity)

_______________
Denon AVR-X4200W, Arcam Alpha 8P; 5.1.4 setup: Mission 702e, M7C1i, 77DS, 731. Rel T5 Sub. Monitor Audio CT165 4 Tops | LG OLED55C8PLA TV | Samsung UBD-K8500 UHD Blu-Ray

HDMI 2.0 4K modes | Dolby & DTS core+outer audio tracks on (UHD) Blu-Rays | Hello to Jason Isaacs
mrtickleuk is offline  
post #592 of 597 Old 05-30-2020, 12:43 PM
AVS Forum Special Member
 
Join Date: Jan 2015
Posts: 1,134
Mentioned: 62 Post(s)
Tagged: 0 Thread(s)
Quoted: 1005 Post(s)
Liked: 1094
Quote:
Originally Posted by Wizziwig View Post
If you could live without 4K or HDR, you could have tried finding a used Plasma. For SDR viewing, they can probably still beat any cheap edge-lit LCD at similar price. Hardest part might be finding one in good condition.
Hah, funny that you mention that because before I even read your reply I switched the piece of crap TCL (I didn't even use it for 2 days) with my old 2011 Panasonic Plasma, which I gave to my parents years ago...
I couldn't bare the edge-light bleed and also the viewing angles were a big problem even when watching perfectly centered.

I'm surprised my old plasma still doesn't have burn-in. My parents are bright room watchers and they've tortured it every day with TV channels. I'm sure they'll be fine with the TCL...

I'll see how it goes but for the moment this 9 years old plasma is a revelation for me as a dark room viewer .

Last edited by jk82; 05-30-2020 at 03:36 PM.
jk82 is offline  
post #593 of 597 Old 05-30-2020, 02:33 PM
AVS Forum Special Member
 
Join Date: Jan 2015
Posts: 1,134
Mentioned: 62 Post(s)
Tagged: 0 Thread(s)
Quoted: 1005 Post(s)
Liked: 1094
Not really related to this topic but I'm gonna post it anyways.

This is a picture of the TCL VA panel (top) vs the Panasonic Plasma (bottom):



This was taken at about 2.5 meters, which is my current viewing distance. The TCL has a contrast ratio of 4000:1.... but only in the center. Towards the edges it gets way brighter. When I move my head that dark blob in the center moves around. I guess the problem is a mix of viewing angles and edge light bleed.

Why can't we have plasma uniformity with Oled brightness and absolute blacks??
Attached Thumbnails
Click image for larger version

Name:	VA_vs_PLASMA.jpg
Views:	555
Size:	541.6 KB
ID:	2734744  
chros73 and mrtickleuk like this.
jk82 is offline  
post #594 of 597 Old 05-30-2020, 04:23 PM - Thread Starter
AVS Forum Special Member
 
Wizziwig's Avatar
 
Join Date: Jul 2001
Location: SoCal, USA
Posts: 3,665
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2348 Post(s)
Liked: 1634
Moved the discussion over to the uniformity tracking thread.
Wizziwig is offline  
post #595 of 597 Old 05-30-2020, 04:42 PM
AVS Forum Special Member
 
macmane's Avatar
 
Join Date: Oct 2013
Location: Crystal Lake
Posts: 2,461
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 1374 Post(s)
Liked: 938
Quote:
Originally Posted by Wizziwig View Post
Unfortunately, looks like this issue is still not fully resolved on 2020 models.



Visible flashing demonstrated in recent LG CX review. Looks like a clip from Better Call Saul on Netflix, Season 4, Episode 4, around time offset 44:12. Also noted in episode 5, time offset 45:19. Can someone with a 2020 Sony model like A8H compare their results?



https://youtu.be/NrRUTqfB_Ts?t=185
I checked those scenes on my 55 cx and no flashing. Dark room all the recommended settings etc checked multiple times no issue

Sent from my SM-G986U using Tapatalk
macmane is online now  
post #596 of 597 Old 05-30-2020, 06:31 PM - Thread Starter
AVS Forum Special Member
 
Wizziwig's Avatar
 
Join Date: Jul 2001
Location: SoCal, USA
Posts: 3,665
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2348 Post(s)
Liked: 1634
Quote:
Originally Posted by macmane View Post
I checked those scenes on my 55 cx and no flashing. Dark room all the recommended settings etc checked multiple times no issue

Sent from my SM-G986U using Tapatalk
Could be differences in calibration as HDTVTest obviously calibrates all their review units. Could also be differences in the source since he doesn't indicate where it's coming from (provider, app, external device?) and at what resolution/bitrate. In any case, his GOT comparison in the second video shows there is still room for improvement. Wish he had added a third display that doesn't suffer from this issue that we could use as reference for comparison.
Wizziwig is offline  
post #597 of 597 Old 05-30-2020, 10:08 PM
Senior Member
 
Dimon.Zorg's Avatar
 
Join Date: Sep 2017
Posts: 461
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 351 Post(s)
Liked: 158
Quote:
Why can't we have plasma uniformity with Oled brightness and absolute blacks??
My B8 has very good uniformity. A way better than your TCL
Dimon.Zorg is online now  
Sponsored Links
Advertisement
 
Reply OLED Technology and Flat Panels General

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off