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Display artifacts and noise at low brightness and dark grey colors

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Yrtimd

New member
Mar 7, 2021
2
0
Charlotte, NC
Hello. I have a question regarding the display of dark grey at low brightness. Noticed this using the google web page in dark mode before going to sleep with all other lights dimmed or off.

I also noticed some burnt in segments of the screen like nav bar and status bar at the conditions described above.

I am attaching the dark grey filled image I use to distinguish the problem. Can you please test it with your S21 in dark conditions and fullscreen and tell me if you see same noise and smudge-like artifacts?

I must say I tried to go to BestBuy and Target to compare it to other S21 by myself, but obviously it didn't work because there are too many light sources in the store and it's too bright to see that.

I also tried to make a photo of what I am seeing in completely dark room, but obviously it's less informative compared to human eye.
Thank you.
 

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goattee

Senior Member
Apr 25, 2006
104
22
San Diego
I am attaching the dark grey filled image I use to distinguish the problem. Can you please test it with your S21 in dark conditions and fullscreen and tell me if you see same noise and smudge-like artifacts?

Maybe I am not very discerning but screenshot_* shows no anomalies on my S21. The file_000 however does have a visual imperfection. It's the file itself and not the screen because the "smudgy" area moves as I scroll and grows when I zoom. So it's an artifact of the file. It does have some subtle grey coloring.
 

Yrtimd

New member
Mar 7, 2021
2
0
Charlotte, NC
Maybe I am not very discerning but screenshot_* shows no anomalies on my S21. The file_000 however does have a visual imperfection. It's the file itself and not the screen because the "smudgy" area moves as I scroll and grows when I zoom. So it's an artifact of the file. It does have some subtle grey coloring.
The File_000 has anomalies because it's a photo of a screen producing artifacts, when the Screenshot is just filled grey and should be clean of any artifacts on a healthy screen. I must say when I open the Screenshot using gallery and in fullscreen, and try to move it left or right until previous or next image border shows in the gallery, I can see the artifacts and smudges remain static because it's screen defect but the image (screenshot) is clear of any imperfections. Thank you for trying though.
 

bassbounce

Senior Member
Feb 14, 2011
553
370
Betuwe
It is normal since a few years, Xiaomi since the Mi 8 and has it Oneplus since the 8 series and now Samsung.
It has something to do with the newer generation panels.