Screen uniformity issues - Samsung Galaxy S20 FE Questions & Answers

Hi, I've recently bought a S20 FE 5G. I noticed at night that my screen was brighter on the edges like a cheap LCD phone.
I could reproduce the issue using "Display Tester" app using Dark Grey color and 1% brightness, I was in a dark room.
There is a sort of light bleeding from the edges of the screen and the center of the screen is brighter than the other parts.
Any of you has encountered the same issue?
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Actually, I think you are lucky. Your oled looks almost perfect to me. Compared to yours, mine is way worse - it has a brighter area and banding in the lower part of the screen. Disuniformity can be noticeable in dark gray image in low brightness in dark room. I've seen this in other oled panels (Galaxy and Pixel phones). There is no guarantee I can get a better replacement, so I don't go that route unless display is annoyingly low quality.

tkshk said:
Actually, I think you are lucky. Your oled looks almost perfect to me. Compared to yours, mine is way worse - it has a brighter area and banding in the lower part of the screen. Disuniformity can be noticeable in dark gray image in low brightness in dark room. I've seen this in other oled panels (Galaxy and Pixel phones). There is no guarantee I can get a better replacement, so I don't go that route unless display is annoyingly low quality.
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I think this is related to implementation of how they increase the brightness, when you are using it longer on low brightness the color will uniform.
Per checking on witrigs.com. The Replacement screen cost on S20 = $230 vs S20 FE = $148 vs S9 = $162. So the S20 FE screen is not high quality as S9+.
Since I have an s9+, this doesn't happen to my phone which is already 2 years and 9 months
I

Its an oled screen, should it should black where there is nothing being shown on the screen. Do you have edge apps enabled?
Also how did you get to the test screen, as I would like to test this on my SM-G781B

Related

[Q] Build Quality

I just got my gear live and I was wondering if anyone else has a noticeable gap on either side of their gear live? Also, it seems that the heart rate sensor on mine looks crooked. Is this how it is supposed to be? The heart rate monitor seems to work fine. Although, I have not really tested it for accuracy. Please let me know if these build issues are normal.
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Bump.....anyone notice this?
Primenay said:
Bump.....anyone notice this?
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I have noticed a gap on the upper inside area where the plastic meets the bezel on the side opposite the charging port.
It does make me question it's IP 67 certification.
Landon4444 said:
I have noticed a gap on the upper inside area where the plastic meets the bezel on the side opposite the charging port.
It does make me question it's IP 67 certification.
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I have another question for anyone on here. Does your screen show a sort of pink line of pixels at the top when a white screen is shown? I think it may just be the way these displays are made but I wasn't sure.
Primenay said:
I have another question for anyone on here. Does your screen show a sort of pink line of pixels at the top when a white screen is shown? I think it may just be the way these displays are made but I wasn't sure.
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I see that as well. It is hard to describe but I do see a pinkish hue that lines the upper edge of the display which is most noticeable on a white background.
I just tried the pixels and its true but unnoticeable in normal use. As for the gap that's quite big compared to mine which I've had for months.
Mine looks the same and I have seen the gap on other watches. It varies. I have gotten it a little wet on the sides from washing my hands and so far no issues here. It should not affect the IP 67 certification. I wonder if the pink hue on white screens could be fixed with a software update?
Other issues I have noticed are my watch band creaks a little if I move it around and also my heart rate sensor looks crooked as you can see in my pictures. Other than these things, it is a great watch!

How's your screen uniformity?

Hi, I recently bought a Nokia 8 and it's an amazing phone all round. Crazy fast and smooth and has great features.
One thing I noticed though is that the colour temperature at the bottom inch of the display seems a little more yellow/very slightly brighter than the rest of the display. So on a page with a light grey background for example, it's noticeable that the bottom of the screen seems slightly yellowy/green or maybe slightly lighter than the rest of the screen. It's not a huge difference but it's quite noticeable especially when browsing with Chrome or other apps that can show solid background colours.
How's your Nokia 8 display? Have you got the same characteristic where the bottom inch is very slightly "warmer" than the rest of the display? Any other issues. I'm trying to figure out if it's worth getting a replacement. Such a shame because otherwise the display is great (apart from being more on the blue side than I'd like).
alsheron said:
Hi, I recently bought a Nokia 8 and it's an amazing phone all round. Crazy fast and smooth and has great features.
One thing I noticed though is that the colour temperature at the bottom inch of the display seems a little more yellow/very slightly brighter than the rest of the display. So on a page with a light grey background for example, it's noticeable that the bottom of the screen seems slightly yellowy/green or maybe slightly lighter than the rest of the screen. It's not a huge difference but it's quite noticeable especially when browsing with Chrome or other apps that can show solid background colours.
How's your Nokia 8 display? Have you got the same characteristic where the bottom inch is very slightly "warmer" than the rest of the display? Any other issues. I'm trying to figure out if it's worth getting a replacement. Such a shame because otherwise the display is great (apart from being more on the blue side than I'd like).
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Mine is quite alright. There's just a blotch at the very center of the screen that is a little brighter than the rest. But it sort of gets "framed" by the darker areas and I don't really notice it much at all. In fact this is one of the most uniform displays I've ever had.
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dark shade of under fingerprint scanner is visible in direct sunlight on dynmic amole

Actually as i was browsing on my galaxy s10 i saw a dark outline of under display fingerprint scanner on the dynamic amoled, this issue is only visible on white background, this is of deep concern, did anyone notice this issue?
Hi. I cannot see anything there on the screen - not one bit, regardless which background it is.
Ktausif12 said:
Actually as i was browsing on my galaxy s10 i saw a dark outline of under display fingerprint scanner on the dynamic amoled, this issue is only visible on white background, this is of deep concern, did anyone notice this issue?
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I can see it too but only in bright sunlight shining strait at the screen with a white background. Even then it's hard to see. I tried it under a bright UV light and other very bright lights and do not see it otherwise. If you check this video out at 8:50 it should explain why. It's the reflection from the bright sunlight reflecting through and then back from the screen. I don't see it as a defect, it's just the design of the fingerprint reader. I wouldn't worry about it unless it becomes visible all the time.
But while i was using Chrome in direct sunlight the shadow stayed throughout and it was very irritating.
Do check in direct sunlight
rnrnrn said:
Hi. I cannot see anything there on the screen - not one bit, regardless which background it is.
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check in direct sunlight.
Let's stay on topic, guys and gals. No flaming.
Thanks!
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how do i upload image to this form
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Here's what mine looks like...
Not just from light at the back but direct sunlight, and on other colours than white.
Hello,
i have same problem... any solution?
Maybe stick some gaffer tape over it to hide it?
I can see mine aswell.
Sent from my SM-G975F using Tapatalk
Same here.
Bromage92 said:
Here's what mine looks like...
Not just from light at the back but direct sunlight, and on other colours than white.
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Not visible on mine

Faulty Display.

Hi,
I got the blue mi 9, I noticed a horizontal line across the middle and top and bottom of the screen when the screen is at low brightness in a dark environment.
I tested it with oled test, but is it clearly visible on dark grey backgrounds.
I returned my phone and wonder if this is a common issue?
The line on the middle of the screen is the most visible on the photo.
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I have the same problem, 3 spots on different location
Gokh said:
I have the same problem, 3 spots on different location
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Do u have the same lines on the screen?
bassbounce said:
Do u have the same lines on the screen?
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Not at the same spot, but yes, i have similar spots under the screen visible on grey backgrounds
This is common. Dont worry. I have that too
huynhanhtri96 said:
This is common. Dont worry. I have that too
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When you pay 500€, you have the right to worry, it's should not have any defect like this.
Those lines are nothing to worry about like said earlier, it's inherent to how OLED panels are made for smartphones. Just a downside of the technology that OLED makers will not tell you about since that kind of situation is rare compared to most a phone usage
SurfaceCube said:
Those lines are nothing to worry about like said earlier, it's inherent to how OLED panels are made for smartphones. Just a downside of the technology that OLED makers will not tell you about since that kind of situation is rare compared to most a phone usage
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I have never seen those lines on Oled displays, and I had a lot of phones with a amoled or oled.
Search OLED Grey on Google image, you'll maybe understand. There's various degrees of the issue to the technology
SurfaceCube said:
Search OLED Grey on Google image, you'll maybe understand. There's various degrees of the issue to the technology
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People got too much hype on AMOLED and usually they don't talk much about its specific possible problem (LCD don't have).
The most prominent problem is due to the way AMOLED is powered which could lead to flashing screen, flickering screen .
Sent from my MI 9 using Tapatalk

Screen Brightness outside

Anyone else find the screen a little too low for use outside? Even at full brightness, if there's a little sun outside, I find the screen a hard to see. I've come from an S8+ and the screen was exceptional so I may have been a little spoiled.
Also, from the other threads I've seen, autobrightness activating after a reboot is a "feature", not a bug? Is that correct?
Other than that, I can't find much to fault about the P30 pro (I'm not even that bothered it's unrootable atm).
Well i have the opposite experience Auto brightness seems to be always too bright for me, and i have to constantly dim the screen. In direct sunlight it's very well visible. I'm on 124, and have a feeling that Huawei nerfed native Android 9 adaptive brightness function that is supposed to learn how do we set brightness in different conditions, and just left simple auto brightness. We'll se it over time if it will start adapting, or maybe the update will fix it. But i have no complaints about max brightness, it's even too bright for my taste in a sunlight.
I find it very dim outside, like even if it's cloudy out. It's max brightness doesn't compare to the lcd my P10 pro had. I'm finding it hard to edit pictures on here in the day.
I agree and find the display hard to read outside. Could it be that different units have different maximum brightness?
adeb2 said:
I agree and find the display hard to read outside. Could it be that different units have different maximum brightness?
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Check in Developer Options for Sunlight brightness options
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*Detection* said:
Check in Developer Options for Sunlight brightness options
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Thanks, It's already enabled.
I just read that the Mate 30 has two display suppliers, "Samsung Display or BOE Technology" If this is true for the P30 Pro it could account for the difference in brightness. Expecting BOE Technology to be inferior.
According to this site the P30 Pro has LG and BOA made screens: https://www.notebookcheck.net/The-H...ures-AMOLED-displays-made-by-LG.418210.0.html
I don't have that feeling. Under sun it is ok

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