Database Develop

How is the screen uniformity on the P9 Plus?

I often see color uniformity issues on amoled panels especially on whites or in greys. For those who have a keen eye and know how to check, how is your screen uniformity? Post some pics on what image you tested it with.

I've had 2, I'm a printer( so see everything?) and have noticed the screen to have the top edge red and bottom green, sent one back but the new one had the same thing. Any one else notice it? Or maybe I should get some 3D GLASSES ?

Its a very common quality control issue on AMOLEDs even on the latest Note 7 it is still an issue, Aside from the Galaxy S1, I have yet to see a uniform AMOLED panel especially in whites and greys.

Black smear

Hi! I'm facing an issue with my new K20 pro, I believe it is called black smear. It leaves blue trails when scrolling on partially black screen, like the notification panel in dark mode, and it is particularly evident when brightness is low. Am I the only one o is it a common problem on this type of phone?
Thanks!

fedeodo said:
Hi! I'm facing an issue with my new K20 pro, I believe it is called black smear. It leaves blue trails when scrolling on partially black screen, like the notification panel in dark mode, and it is particularly evident when brightness is low. Am I the only one o is it a common problem on this type of phone?
Thanks!
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I have the same "problem" as you, but i think is common on amoled panels because the leds turn off when is black so if you are doing faster movements the leds cant mantain the same speed as you so you see the trails. Another thing is that this dont affect videos because it generate first all the images so the phone can recognize which leds need to turn off and on
and do you can see the blue trails on max bright if you watch carefully? Because if i pay attention i can see a bit

This is why developers don't use pure black themes.
It's common, don't worry.
Still Amoled is far more better for me than LCDs.

AmanRafi said:
This is why developers don't use pure black themes.
It's common, don't worry.
Still Amoled is far more better for me than LCDs.
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My redmi k20 pro unit also suffers from this black smearing issue but it's not a common problem i just bought a Samsung galaxy m10s with super amoled display but it doesn't have any black smearing issue like Redmi k20 pro..

samdubey1 said:
My redmi k20 pro unit also suffers from this black smearing issue but it's not a common problem i just bought a Samsung galaxy m10s with super amoled display but it doesn't have any black smearing issue like Redmi k20 pro..
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Last time, I checked on M30s and it was there. Tried on Onplus 6t and Samsung s9+,still there. There is a test for it, I found it somewhere on twitter. Don't worry

Pixel 4 XL screen has a yellow tint how are yours?

Received my Pixel 4 XL a few days ago and one thing I noticed straight away was how yellow the screen was compared to my Pixel 3 XL.
Only picture I have is uploaded as my daughter has already taken my old phone.

Have you tried disabling Ambient EQ under display settings?

zetsumeikuro said:
Have you tried disabling Ambient EQ under display settings?
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This setting is already off, should have mentioned this above. My display is even more yellow when enabled.

xxnoelziexx said:
This setting is already off, should have mentioned this above. My display is even more yellow when enabled.
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There's a few things it could be, but I feel Google calibrated it this way at the factory as I too noticed my display is warmer but not yellow. Some do say that the yellow hue could also be the adhesive still fully curing. Although I'm not too sure how relevant that is now a days with the newer optically clear adhesives. This usually will alleviate itself through normal usage within a few days to a week. I'm thinking it's more to do with Google's calibration + the panel lottery and you could of gotten a dud. Custom kernel could probably alleviate the issue when you can adjust kcal and play with RGB. But you might want to start a RMA if the issue doesn't go away as I have seen other reports with people bringing up how yellowish their display looks.

Mine is also very warm. Ambient EQ is off and the brightness is high.
It'll be interesting to see if this plays out as "This is how we intended it." or if it's a manufacturing error.

ShiroEd said:
Mine is also very warm. Ambient EQ is off and the brightness is high.
It'll be interesting to see if this plays out as "This is how we intended it." or if it's a manufacturing error.
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Contacted Google who asked me to check a few options which were already disabled.
Outcome RMA, will check how the new unit looks when delivered.

Same here. It's not a defect, just the way they calibrated it. I actually like it a bit better than the bluish version. That seems to mess with my eyes, whereas this feels very comfortable. Still, it would be nice if they offer us a slider in the future.

I have Ambient EQ on but the short time I had it turned off the colors seemed cool. Closer to a blueish hue.
Sent from my Pixel 4 XL using XDA Labs

Mine doesn't have a yellow tint, not even with Ambient EQ on (at least not in the typical environments I use my phone). I really dislike warmer screen tones, so I would have definitely noticed, but mine is leaning more towards the cooler side for sure.

No issues on my white 128 XL. In fact mine looks better than my wife's iPhone 11 pro. her's looks way warmer. I think the display is fantastic on the 4. Best pixel screen yet.

64gb black P4 and I notice a slightly warm almost green tint under 30% brightness. Above 50 it's only slightly warmer than my pixel 3 and at 80+ it's identical

It might have something to do with the refresh rate on the screen. I can notice it shifting between 60Hz and 90Hz. That color shift introduces some yellow from 90 to 60 and removes yellow the opposite way around. You can pick the device to 90Hz in the developer settings, but you're trading off battery life for it.

Yellow here too, off angle it goes white so it's a definite flaw, if it was white straight face on then went yellow off angle this is normal, I'm on my second unit and unfortunately it's worse than my first original, why i hate warm, the people with the same issue as mine will understand, you also lose colour pop when the screen is yellow, simple look at your warm screen look at the colours on text the angle your phone at watch the colours pop better, 100% what people are experiencing is oled manufacturing flaw, I'm still undecided if I'm trying a third but if i do and it's the same or worse again I'm getting a refund until these manufacturers pull their finger out with oled.

Yep, mines super yellow compared to my LG V30, and there's no way to tweak the colors and reduce the red tint.

Its warm but look much better than 3 xl display which has the green tint color.

There's an article on droid - life that says that's the way Google intended the display to be.
https://www.droid-life.com/2019/10/24/pixel-4-lg-display/
There is also a thread over on Android Central with more info and links.

No yellow tint for me, it's quite a cool looking colour. black 64gb model EU.

xxnoelziexx said:
Received my Pixel 4 XL a few days ago and one thing I noticed straight away was how yellow the screen was compared to my Pixel 3 XL.
Only picture I have is uploaded as my daughter has already taken my old phone.
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The 4 XL has a warmer, pink tint. I see more of a blue tint on the 3 XL. I personally prefer cooler tints to warmer or pink ones

bitwiser said:
No issues on my white 128 XL. In fact mine looks better than my wife's iPhone 11 pro. her's looks way warmer. I think the display is fantastic on the 4. Best pixel screen yet.
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Agreed, mine looks awesome to me!

Mine only looks good when the screen brightness is at max. 70% and less, looks terrible. Darker then usual. Yellow/orange. Compared to my Note 10 which is very bright all around. Really want to keep the pixel over the Note but I'm not sure. Have 15 days to decide

Anyone else facing a light yellowish tint on LCD

Anyone else facing a light yellowish tint on LCD on Nokia 7 plus. It is nearly unnoticeable until you place it next to another phone and compare. Phones like Samsung have colour temperature setting for this.

nitish.genext said:
Anyone else facing a light yellowish tint on LCD on Nokia 7 plus. It is nearly unnoticeable until you place it next to another phone and compare. Phones like Samsung have colour temperature setting for this.
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You sure night lighting is turned off?

Yes, our phone has a warmer screen if you compare it with anyother phone, prominently noticeable on white background while comparing

Question Slight red/pink tint?

In low or dark ambient light the screen seems to have a pinkish or red tint when viewing the panel to the side. I don't remember seeing this on the N20U. Anyone else?

Very common in phones in the past year. Either green or red tint in low light. My 8pro has a green tint at low light levels and there's many reports from many makes and models of phones of this.

So probably normal. Just didn't seem to be a bright or white as the Note 20U.

mhw100 said:
So probably normal. Just didn't seem to be a bright or white as the Note 20U.
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Im not sure it's "normal" more that there's something going on with the latest Samsung panels. Is the N20U 120hz? I think it's something to do with the refresh rates because OLED TVs suffer from "raised blacks" at 120hz. I think high refresh rates mess up gamma levels in OLED.

Yes the Note was 120 but not qhd

Do you have a screen protector installed? it could make this tints worse, also don't forget this issue is only with "cheaper" displays, i don't think Samsung uses that kind of "cheaper" displays in flagships!

I did remove the factory protector and it did seem to make the panel slightly brighter. The pink only shows up in low ambient light with the screen at100% and really only then if viewing it at an angle. It's slight but haven't seen this on the Note 10, Note 20 or s20.

Are you using 120hz? On the note 20 ultra this cause slight colour shifts...

Yes 120 and qhd although not at the same time on the Note.

I don't see pink tint in my s21 ultra.
Exynos version

How does the white balance in a dark room with the screen cranked up seem? Warm or cool? It's not as bright as the Note so maybe that's what I'm picking up on.

mhw100 said:
Yes 120 and qhd although not at the same time on the Note.
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This is the reason... Sadly every device with 120hz has either red or green tint issue :/

Well that is unfortunate then.

Yes to pink tint! Exynos

no pink for me USA model snapdragon

Same Pink tint problem. Exynos. Don’t need 100% brightness. Just at white screen and slightly tilt it. And pink tint appear.
Same as 13:20s in this video

So it sounds like it might be normal for these panels then and the 120 hz as mentioned above

I just turned the white balance one notch to cool and it seems to eliminate the pink and then into the advanced and then the red down a bit

mhw100 said:
I just turned the white balance one notch to cool and it seems to eliminate the pink and then into the advanced and then the red down a bit
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some people don't see it. seem strange. may be some devices have that problem. not all.
my oppo find x2 pro 2k 120hz don't have that pink. very annoying. sr for my bad english.

my oppo find x2 pro 2k 120hz don't have that pink. very annoying.