Dirty Screen. Defective? - Xiaomi Mi 8 Questions & Answers

My new Mi 8 seems to have a defective screen. The defect becomes visible when the screen brightness is very low. Is this normal on Mi 8? Or mine is just defective? I've noticed it yesterday night when using a blue light filter called Night Shift. It's visible specially on reddish background and a blue light filter makes the screen color to reddish. You should also try yours and see if it's defective. I specifically downloaded a black image for a better view and turned on Night Shift with Dark filter and lowered brightness at 1-5%

The point is, what is the point of using the phone at brightness 1-5%?

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[Q] AMOLED display purple tint

Is it normal to get a purple-brownish tint on your MOTO X when the display brightness is turned down to the lowest, all shades of grey look purple-ish.
Kunal5894 said:
Is it normal to get a purple-brownish tint on your MOTO X when the display brightness is turned down to the lowest, all shades of grey look purple-ish.
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It happens to my phone. It didn't used to happen to my last phone, but it does with this one. Gray colors look purple-ish. It only happens when I turn my brightness lower than the stock lowest, though.
Sent from my XT1058 using XDA Free mobile app
Yep, I have the tint, extremely noticeable (to my eyes, besides I am obsessed with display quality) IMHO at Auto brightness, but I don't see purple tiny, it's more Yellowish on mine. Mostly visible on Whitish background. So I had to turn off Auto brightness and use around 30% brightness, that somewhat makes the tint less visible. Also I am using Screen Adjuster and Blue to +3/4 to neutralize the tint at some extent. This display reminds me of the S2.

Uneven Pink Hue - help!

So for the first time after getting the phone I turned on adaptive brightness and pulled slider completely left. I was expecting pink hue but then I realized that the top part of my phone was more pink than the bottom half is that normal?
Could you guys please post a pic of your screen with a white background and adapative brightness on and lowest brightness? I know its too much to ask but it would really be helpful.
Anyone?
I have a similar issue. My bottom half is more pink. It seems like most people have it to some degree.
How did you come to that conclusion?
It does go pink but I've never seen it as you describe.
Please don't bump threads within 24 hours of your last post. Its against the rules.
Sorry about that!
If you turn down your brightness all the way in a dark room with adaptive off and look at a white background - is your screen uniformly pink?
DroidBee said:
Sorry about that!
If you turn down your brightness all the way in a dark room with adaptive off and look at a white background - is your screen uniformly pink?
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The pink is a bi-product of adaptive. It shouldn't happen when adaptive is off.
My original post says that with adaptive brightness turned off and at the lowest brightness, I can see that the top part of my screen has more pink tint to it than the bottom of the screen. Not the overall hue.
DroidBee said:
So for the first time after getting the phone I turned on adaptive brightness and pulled slider completely left. I was expecting pink hue but then I realized that the top part of my phone was more pink than the bottom half is that normal?
Could you guys please post a pic of your screen with a white background and adapative brightness on and lowest brightness? I know its too much to ask but it would really be helpful.
Click to expand...
Click to collapse
It turns pink below 10% when the adaptive brightness is on but it never happens as you've described Do one thing, turn on the brightness at max and put a full white wallpaper and see if there is any screen burn-in present or not?
No screen burn in. The way to test my issue would be
1. Turn on adaptive brightness.
2. Set brightness to lowest level.
3. Look at a white image full screen.
4. In a dark room, I notice that the top part of the screen has some minor banding which makes the top half of the screen seem a little more pink than the bottom half.
DroidBee said:
So for the first time after getting the phone I turned on adaptive brightness and pulled slider completely left. I was expecting pink hue but then I realized that the top part of my phone was more pink than the bottom half is that normal?
Could you guys please post a pic of your screen with a white background and adapative brightness on and lowest brightness? I know its too much to ask but it would really be helpful.
Click to expand...
Click to collapse
DroidBee said:
My original post says that with adaptive brightness turned off and at the lowest brightness, I can see that the top part of my screen has more pink tint to it than the bottom of the screen. Not the overall hue.
Click to expand...
Click to collapse
DroidBee said:
No screen burn in. The way to test my issue would be
1. Turn on adaptive brightness.
2. Set brightness to lowest level.
3. Look at a white image full screen.
4. In a dark room, I notice that the top part of the screen has some minor banding which makes the top half of the screen seem a little more pink than the bottom half.
Click to expand...
Click to collapse
First, says adaptive is on
Second, says its off
Third, says its on
Sent from my Nexus 6
I meant on.
rootSU said:
The pink is a bi-product of adaptive. It shouldn't happen when adaptive is off.
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DroidBee said:
I meant on.
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Answered............
Sent from my Nexus 6
No not answered.
My top half of the screen is more pink than the bottom half at lowest brightness.
The pink is not the problem. The unevenness is.
I think I have the same issue

Display - Light bleed

Hi
I just received my Redmi 4x. While I tried different wallpapers I noticed a slight green tint on the lower border of the display.
Further inspection showed a visible green coloration on the lower portion of the display. The brighter the display gets, the more visisble it becomes. I don't care about the slight light-bleed on the top or bottom left.
You can find some photos I took.
Code:
https://ibb.co/ku6hgb
https://ibb.co/fpuXEw
https://ibb.co/kuTsEw
https://ibb.co/nAezuw
Of course I don't watch black images at maximum brightness all day. This scenario was chosen for the purpose of illustrating the problem.
I wonder if the display of my Redmi 4x is an exception or the standard.
Thanks for your participation.
I have this problem also. I am using my 4x for 5 months already, and I always use adaptive brightness, but still I got back light bleeding

OLED Display black to grey smearing

Hey,
i just got the Xiaomi mi8 (Global Rom, MIUI 9.6) and noticed a thing with the display. If the brightness is under 40% (lower the problem gets more and more visiable, gets really bad at 10-15%) the black is starting to smear if next to a grey color. If i move a black part surrounded by grey over the screen the black smears into the grey. I also noticed there is a slight color gradient from left (dark) to the right (getting brighter).
I contected the shop i bought it from and they said they never heard of this problem. I googled the problem but got no resaults. The shop send me a new Xiaomi mi8 but guess what, the same problem occured on this new device too.
I tried to record a video but its really hard if the room is dark and the screen is at a low brightness but maybe you can see what i mean at the edges of the black parts if you look closely.
mi 8 screen recorded with a camera:
https://www.dropbox.com/s/gmgdthzthgm69dr/Black smear xiaomi mi8.avi?dl=0
https://www.youtube.com/watch?v=LkmipTa_PsY
I made a test pattern and attached it to this post. Would be really helpful if somebody could check this on his/her own mi 8 and leave feedback!
test pattern recorded with screenrecorder on mi 8:
https://www.dropbox.com/s/1fpxuybw664skgp/Screenrecorder_mi8.mp4?dl=0
https://youtu.be/qM5FsRYTgKw
Greetings
It's Normal for all oled or amoled screen.
gm007 said:
It's Normal for all oled or amoled screen.
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Really? Hmm, than i have to look for a device with a good old LCD panel.
Absolutely normal, my old s7 did this too, its due to the fact that pixels are turned off when displaying black and it might take a fraction of a second to turn on resulting in this smear. Happens to all oled displays

Tint in k20 pro display

Hey guys, hope you are doing great.
I have noticed one peculiar thing, when i sit in pitch dark places with brightness at the end, i face this white issue over my display screen shot attached, it's Google chrome app which showing me these results,(there are many more also)for this to be noticed you must sit in a dark room.
I know it's typical led panel issue and i would like to know if i am the only one?
Do you seriously think we are able to see your display in a screenshot?
IoIam said:
Do you seriously think we are able to see your display in a screenshot?
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Click to collapse
If you are in a pitch dark room and see no anamoly then your's display is good. If not you will see a whitish tint over the top area
And btw you can check on your device itself, by just opening chrome(if it's black) and in dark room with brightness as low as possible.
kanteon said:
Hey guys, hope you are doing great.
I have noticed one peculiar thing, when i sit in pitch dark places with brightness at the end, i face this white issue over my display screen shot attached, it's Google chrome app which showing me these results,(there are many more also)for this to be noticed you must sit in a dark room.
I know it's typical led panel issue and i would like to know if i am the only one?
Click to expand...
Click to collapse
Enable feature in display settings under anti flicker mode to on. and check again your screen in low light conditions.
Yup, that worked, it increase overall contrast for low brightness, is this condition(tint) is normal for amoled panel, or i am just unlucky.
kanteon said:
Yup, that worked, it increase overall contrast for low brightness, is this condition(tint) is normal for amoled panel, or i am just unlucky.
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yes that's normal for amoled panel.

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