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Question (problem) about display

Hi, I bought my 4X last couple of days.
Im very happy, but now I have one question about display.
I was surfing on the internet and I noticed that on top of the display, there is slightly brown or yellowish tint
Its visible on white or light grey background.
I noticed it isnt on LCD panel becasue when I look closer or in another angle the effect like disappeared.
It looks like sea-bow effect or glass reflection on gorilla glass or something similar but only with yellowish tint.
I red in reviews that the display is in some distance from glass, maybe there is slightly color distortion between glass and display?
My build is 1.1
Did you notice something similar on your 4X? Is it normal? Maybe Im too sensitive?
Thanks in advance.

So, I try to look at the display with white background in the dark room and I can definitely notice sea-bow or reflection on the glass. Its changing the position when I change the angles during the view on display. Anyone notice this? Would be very appreciated.

Yes, i seen to. But it's a very light effect. Is not a problem for me. If you don't advertise this to me I would not seen it.

Anyone other noticed this issue? Thanks.

smoke2 said:
Anyone other noticed this issue? Thanks.
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To be honest, no. I tried to do in your way, I'm not blind, but I simply don't see nothing abnormal in mine Optimus 4X HD.

I have this problem too, and my Optimus 4x is 3 months old. Maybe it is cause by the overheat problem? Since the phone heat up mostly at the top part when playing games or browsing.

It could be that when the phone heats up, the glue melts and the screen gets "dirty" or its because of screen bleeding or because of pixels getting damaged because of the heat.
I also do notice it. Try to look at the phone at a very steep angle, I see that my screen has a blue tint on the bottom and a weird other tint on the upper side. I bought my phone on march 2013 Only noticable on white backgrounds.

Screen Issue???

Ok. Is anyone facing screen issue on your P20 Pro? There seems to be a gradient colour shift which is very obvious in a dark room when the brightness is set to low. Plus it has a green hue to it. Have a look at the picture attached. Thank you.

birajrai said:
Ok. Is anyone facing screen issue on your P20 Pro? There seems to be a gradient colour shift which is very obvious in a dark room when the brightness is set to low. Plus it has a green hue to it. Have a look at the picture attached. Thank you.
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Can't say I've noticed it, will take a look tonight.

Yikes!
I haven't noticed either but I'll also take a look tonight.
Either way i would say swap it out because that is nasty.

birajrai said:
Ok. Is anyone facing screen issue on your P20 Pro? There seems to be a gradient colour shift which is very obvious in a dark room when the brightness is set to low. Plus it has a green hue to it. Have a look at the picture attached. Thank you.
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What software is used ? i want to try to see if i can reproduce it.
But from what i have tried with text on dark backgrounds my screen does not have that colour gradient shift.

bk227865 said:
What software is used ? i want to try to see if i can reproduce it.
But from what i have tried with text on dark backgrounds my screen does not have that colour gradient shift.
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This is Moon Reader+ and the brightness (which can be adjusted from the app itself) is set at 0 and -25.

bk227865 said:
What software is used ? i want to try to see if i can reproduce it.
But from what i have tried with text on dark backgrounds my screen does not have that colour gradient shift.
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Ok going by the screenshots is moon+ reader
I tried it for myself and with brightness turned down to zero on phone and in the app i can also see a very slight hue.
But to be honest, i am much more comfortable reading with some background light so i can at least distinguish something of my environment , and then this is a non issue.
For completeness i took a screenshot with my camera , and it's way worse then what i could see with the naked eye.
With the naked eye it is noticable , but not so bad as the camera makes to believe.
Anyway , a non issue for me.
And since my and your screenshot are suffering from the same hue shift , it might even be a problem with the moon+ reader.....
.

bk227865 said:
Ok going by the screenshots is moon+ reader
I tried it for myself and with brightness turned down to zero on phone and in the app i can also see a very slight hue.
But to be honest, i am much more comfortable reading with some background light so i can at least distinguish something of my environment , and then this is a non issue.
For completeness i took a screenshot with my camera , and it's way worse then what i could see with the naked eye.
With the naked eye it is noticable , but not so bad as the camera makes to believe.
Anyway , a non issue for me.
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Thank you very much for following up. It happens in the gallery too. I've tried it with different pictures that have solid colours such blue, red, green, grey, etc. Do you think the warranty covers intentionally? I bought the phone with full of excitement while I was in Singapore for a holiday. I love this phone so much but the screen is bothering me. Sigh!

birajrai said:
Thank you very much for following up. It happens in the gallery too. I've tried it with different pictures that have solid colours such blue, red, green, grey, etc. Do you think the warranty covers intentionally? I bought the phone with full of excitement while I was in Singapore for a holiday. I love this phone so much but the screen is bothering me. Sigh!
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I'm pretty sure its not covered , the screen works flawless under normal conditions even in the the dark. Only when i go to extreme's like setting negative brightness levels in software the problem really shows up.
I will never have this problem unless i actively go and look for it.

same for me. the vertical and horizontal lines are not really an issue for me, i though i can live with it: i had the same on my p9 plus but on the left, there is a 2cm zone on all the height really darker and it made it almost unreadable at night (lowest light), even with screen filter or not.
i returned my phone and now i must wait to order a new one... my provider tell me they will not have twilight anymore.
i'm very disapointed.

Amoled screens are always a lottery when it comes to uniformity. Sometimes you have luck other times not. There are good screens out there and this time around I got one of the better ones. I have seen others complain about screen issues so not all screens are good like with most phones that have Amoled. Below is mine at 0% brightness and the app you used.

Mine has the issue as well. I ll be getting my device replaced soon as it also has a slight gap between frame and back panel at top left edge

Same issue here. First P20 Pro had it from bottom to top (pinky purple at the bottom, yellowy green at the top), second one has it left to right, but more pronounced on the bottom of the screen.
Is it worth replacing it again? I'm not happy with paying a significant amount per month for this if the screen is bad on all of them.

I would like to check mine. What is the best way to check this?
Update: So i opened lcd test app on my p20 pro and here's how mine looked like in the dark.
I don't know if i did it right but tell me if i need todo anything more to check this propertly.

Oh ffs, my third one has it too. Significantly green in the top left running about half way down the phone.
I've now been to the store 3 times, it's a 96 mile round trip! Nearly 300 miles of fuel wasted on this rubbish.
I get "it's a chinese phone," but we're paying Samsung prices for it, these screen issues are just unacceptable!

Have p20 pro for 2 weeks now. Always thought it's some dark theme design before found this topic. Have top much brighter than bottom in low light conditions. Can't see in bright room or in dark room with brightness more than 50%. I wouldn't be worried if it wasn't so annoying while I watching YouTube before go to sleep. Half of the screen grey, another near to black.

dannejanne said:
Amoled screens are always a lottery when it comes to uniformity. Sometimes you have luck other times not. There are good screens out there and this time around I got one of the better ones. I have seen others complain about screen issues so not all screens are good like with most phones that have Amoled. Below is mine at 0% brightness and the app you used.
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99% oled screens has this issue. Some are less visible, some more. But every oled screen phone I held had this issue.
Now I have Note 9 and dark grays are uneven too.

KastrO_on said:
99% oled screens has this issue. Some are less visible, some more. But every oled screen phone I held had this issue.
Now I have Note 9 and dark grays are uneven too.
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I have a Note 9 now too and while it's not perfect it's one of the most even oled screens I've had when it comes to uniformity.
Sent from my SM-N960F using Tapatalk

dannejanne said:
I have a Note 9 now too and while it's not perfect it's one of the most even oled screens I've had when it comes to uniformity.
Sent from my SM-N960F using Tapatalk
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Thats right its not that bad but its there. Still visible on dark gray background in dark room.
Can you take photo of your note 9 uniformity? I want to compare it with mine.
You can test it on this picture:
https://imgur.com/a/rfa5O7o

using the app oled tools i can see it quite badly on gren , grey and red .... with mine its at the top .... like the top section of pixels is acting differently .... im going to take mine back because its only 1 week old ... what is it with huawei and screens ... the mate 20 pro is facing big issues with their screens

What are my odds of getting a flawless AMOLED (uniformity issues, etc) for Mi 8?

Just requested the return of my Mi 8 due to an AMOLED issue.
Shades of dark gray aren't uniform. This is visible in darker environments (like in the bedroom at night).
This is most visible on Reddit dark mode. I can see it on Spotify if I look hard.
---
I'm waiting for the e-commerce store's response. They claim that this has to be validated via their tests.
Also, I'm wondering what my odds are with AMOLED... If I get a replacement, will I get a significantly better display or potentially find another set of issues if I look.
What do you reckon are my odds if I go through with the replacement?

OLED screens in general are more problematic displaying dark shapes of grey compared to IPS panels. This has to do with manufacturing tolerances of individual light-emitting pixels at low current. This, in particular, is the reason why most OLED panels employ PWM (flickering) to control brightness, applying higher current in short pulses compared to applying constant low current. If you search for "LG G Flex 2 screen uniformity", you'll see some pretty extreme example of this.
That said, with each individual OLED panel and depending on your personal tolerances, your luck may vary. My Mi 8 is very acceptable when displaying dark shades of grey (I don't notice the problem even if it is there). If you received my Mi 8, there is a chance you could spot the issue because your personal tolerance of the problem is lower than mine. My wife uses an LG G Flex 2 and never notices the (very real) problem with its display uniformity (I do!)
In other words, most users are happy with their displays, but it does not mean all of them got a perfect one.

anthroplus said:
Just requested the return of my Mi 8 due to an AMOLED issue.
Shades of dark gray aren't uniform. This is visible in darker environments (like in the bedroom at night).
This is most visible on Reddit dark mode. I can see it on Spotify if I look hard.
---
I'm waiting for the e-commerce store's response. They claim that this has to be validated via their tests.
Also, I'm wondering what my odds are with AMOLED... If I get a replacement, will I get a significantly better display or potentially find another set of issues if I look.
What do you reckon are my odds if I go through with the replacement?
Click to expand...
Click to collapse
That's normal. It happens with every AMOLED display. I have a Samsung S8 and it happens in the same way.
It's something common, don't be scared.

Grana_10 said:
That's normal. It happens with every AMOLED display. I have a Samsung S8 and it happens in the same way.
It's something common, don't be scared.
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Click to collapse
That's right I have this issue on my note 9 too. My previous note 9 had this and devices in store had this.
Its normal.

anthroplus said:
Just requested the return of my Mi 8 due to an AMOLED issue.
Shades of dark gray aren't uniform. This is visible in darker environments (like in the bedroom at night).
This is most visible on Reddit dark mode. I can see it on Spotify if I look hard.
---
I'm waiting for the e-commerce store's response. They claim that this has to be validated via their tests.
Also, I'm wondering what my odds are with AMOLED... If I get a replacement, will I get a significantly better display or potentially find another set of issues if I look.
What do you reckon are my odds if I go through with the replacement?
Click to expand...
Click to collapse
"Aren't uniform" meaning you cannot tell the difference in the shades? Grey is a very challenging and controversial color for AMOLED. Use the Display Tester app by Braintrapp from Google Play and try the "Gamma detection" app when you have your device, you'll see it displayed horizontally. Swipe up and down (with the device of course held horizontally, or "landscape" mode) to change the brightness and look at how it displays grey at different brightness levels. Very weird huh?! It's perfectly normal.
I guess you can say it is a "grey area" for AMOLED...

Crossvxm said:
I would have to say you're in for quite a gamble. Most people aren't keen to spot "defects" on AMOLED displays. I am. Coming from a person who has owned many phones of both main screen technologies, I can tell you that the displays can vary even on identical devices. I've owned Galaxy devices with some having a red hue and others not, same when I had two Nexus 6, one had a slightly red hue and seemingly lower brightness at max, the other was perfect. Sometimes manufacturers have different facilities making the same screen, and differences arise. If you do get a replacement, you just have to hope it's from the better batch.
Now to get a better understanding, what do you mean when you say "aren't uniform?" Could you describe a little what you mean and where/when you notice the issue (e.g. videos, pictures, etc.)
Also, did you attempt to set a static color contrast within the Settings? The display does change tones automatically by default. According to the Display Tester app by Braintrapp from Google Play, it seems that our display does not support Wide Color Gamut. Some of the hues seem to be a tiny bit off according to it on my display, and this is coming from someone who owns a Mi 8 with a "perfect" AMOLED display.
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Click to collapse
Every oled screen is uneven, clearly visible on dark gray backround in dark room. Even samsungs don't have perfect screens.

Grana_10 said:
That's normal. It happens with every AMOLED display. I have a Samsung S8 and it happens in the same way.
It's something common, don't be scared.
Click to expand...
Click to collapse
I have the same issue with pixel 2 xl

I've owned the nexus 6p, OnePlus 5, 5t, 6 and the mi 8.
Tbh I think the mi8 has the worst AMOLED display of all of them when it comes to dark backgrounds in low light. It has like a "jelly scrolling" effect
My avatar on YouTube is solid black and I use the dark mode of the YouTube app....when I'm scrolling through comments i leave on videos with the screen brightness down low there's a noticable trailing effect.
It's not enough to make me want to return it but it's a problem I didn't have with any of the other devices I listed.
I prefer AMOLED to LCD any day.

xyourxhighnessx said:
I've owned the nexus 6p, OnePlus 5, 5t, 6 and the mi 8.
Tbh I think the mi8 has the worst AMOLED display of all of them when it comes to dark backgrounds in low light. It has like a "jelly scrolling" effect
My avatar on YouTube is solid black and I use the dark mode of the YouTube app....when I'm scrolling through comments i leave on videos with the screen brightness down low there's a noticable trailing effect.
It's not enough to make me want to return it but it's a problem I didn't have with any of the other devices I listed.
I prefer AMOLED to LCD any day.
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Coming from OnePlus 6, what motivated you to move to the Mi 8?

anthroplus said:
Coming from OnePlus 6, what motivated you to move to the Mi 8?
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I bought the op6 with PayPal credit. I bought two and with the op6t coming I decided to sell them instead of paying the remaining balance. At first I intended to go with 6t but in the end I thought I'd try something different.
Since the Nexus 6p all of my phones have been stock/near stock. I thought I'd try something else. I like stock better because I feel there's a learning curve to miui if you're used to stock but overall I like the mi 8. I wish I would've waited for the mi mix 3 though. The sliding design is nice.
The full screen gesture navigation is the best button free navigation I've tried. I haven't used the buttons since nearly the beginning of owning it. It'll suck when I decide to use a non-xiaomi device. I didn't like OnePlus or stock gesture navigation

well i gotta say, i was afraid to get an bad Screen, too. Especially after reading threads like this. But i can say my screen is perfectly fine. even in lowest brightness. Yes The grays are not that gray as on the screen as on lcd, but thats the same with all amoled screens, and you only see it when u have the exact same app on an lcd screen beside your phone. For the rest its super fine.

Yeah. After 3+ months of using the phone, I’m learning to just enjoy it naturally without nitpicking details that don’t practically affect my everyday experience.
If we treat the phone like a baby, there’s an endless list of concerns.
But if you really just use it like you would (without analyzing scenarios that don’t come naturally), so many of these issues don’t matter at the end of the day.

I think the green is much more problematic on amoled displays (on low brightness / Oled Tool)

Sigray said:
I think the green is much more problematic on amoled displays (on low brightness / Oled Tool)
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Click to collapse
That's exactly what I found.
Now, having said that, we don't use oled tools for practical purposes.
I basically don't notice the issue at all under normal use.
In other words, if I never did nitpick at first, 3 years of normal daily use could pass without me noticing the issue at all.

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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Click to collapse
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.
Click to expand...
Click to collapse
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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Click to collapse
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.