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Display issue? (shimmering effect on low brightness dark backgrounds)

Anyone notice a strange dynamic shimmering/interference effect on darker backgrounds at low to medium low? It's almost like the screen is picking up analog interference. I have not tried to capture on camera. Pull up a solid color (grey, like the google now background, or white) and set the brightness to min.
Anyone else's tab have it?

okashira said:
Anyone notice a strange dynamic shimmering/interference effect on darker backgrounds at low to medium low? It's almost like the screen is picking up analog interference. I have not tried to capture on camera. Pull up a solid color (grey, like the google now background, or white) and set the brightness to min.
Anyone else's tab have it?
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I have it on my current Galaxy Tab 7.7, it is very visible especially on backgrounds with gray color
On my previous Galaxy Tab 7.7 it does not have this problem

I have no shimmering or any other issues with my screen. It's perfect
Got lucky for once, hope it stays like this.

gvoima said:
I have no shimmering or any other issues with my screen. It's perfect
Got lucky for once, hope it stays like this.
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It primarily happens at minimum brightness, solid color (white screen)
Can anyone else check their tablet for this issue?

I think I have this issue, is it like a random slight colour variation every so often? I keep thinking I am tripping out
Sent from my GT-I9100 using xda premium

I have the same problem, on minimum brightness, mostly on grey colored areas on the screen.

the only time i see this is when their is some oil from skin on the screen. it looks rainbowy.
aboslutely nothing that looks like shimmering otherwise.

okashira said:
It primarily happens at minimum brightness, solid color (white screen)
Can anyone else check their tablet for this issue?
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Click to collapse
Tested it at night in the dark. Auto and minimum brightness. Solid red, green, blue, gray, black and white colors. No shimmering or any deformation on the screen.

gvoima said:
Tested it at night in the dark. Auto and minimum brightness. Solid red, green, blue, gray, black and white colors. No shimmering or any deformation on the screen.
Click to expand...
Click to collapse
Thanks for checking, guys.

My first P6800 from february this year has had this issue and I thought this is something oled specific. After my bag got stolen (lucky bastards) I was buying a new p6800 in august. These downtuned grey and green colours are now rock-solid on that new device. So obviously that is a little bit of gambling. quality control and yield of larger oled still seem to have potential...

Thread moved to Q & A section.

Note3 AMOLED Screen Quality *edit: tested 6 devices so far*

hi,
i just started this thread to get your opinions regarding the display quality of the note3!
i have to admit upfront that i'm a hypocrite when it comes to amoled screens, so far i had to switch all of my amoled devices a least 5 times until i got a unit which satisfied me. done this with the first note, and also with the second.
as far as i can say the screen of the note3 is the best i've ever seen (by far better black-levels as note1 and note2), although i also identified a few flaws as well:
the color RED has very bad viewing angles: when tilting the device a little bit the color gets orange immediately.
try this by enter *#0*# in the dialer, and click on "red" then tilt the device. let us know how "your red" is, thx!
the gamma of the screen is totally screwed: can see down to "1" in gammatest.png:
the disadvantage of this is that you are actually able to see dark grey screens which you should not.
on the left side of the screen border there is a small strip which has also more gamma then the rest of the screen, in menus etc.
this is clearly visible when its dark around. also only visible when at least a little grey is to display, pure black is ok!
this week i will test one or two more note3's, just to have a comparison and to determine if the quality spread is as big as with previous devices. for note1 and note2 the differences between devices were really huge. some screens were near to perfect, most of them had flaws with color unevenness.
what are your impressions?
and: do you care?
regards,
markus
edit 03.10.2013:
just got my second note (this time from amazon.de): the screen is considerably better!! the "more gamma" strip on the left side is non existent on the second device, in gammatest.png the screen is much more uniform! also the red viewing angle is better, it still fades to orange when tilted, but not as much as with my first device!
conclusio: the big differences in screen quality are still existant, it's still luck of the draw if you get a decent one or not...
also the general build quality differs: on the second device the pcb is not exactly in the middle of the casing, the camera hole is not centered in it's protrusion, and the power button extends a little more out of the casing.
again, i may be a "little" freaky about this things, but for > €700 I want to have a decent device!
screen quality is very important for me, because i read a lot with the device, especially in dark environments where the left gamma strip i mentioned was really annoying! i also showed this to a few colleagues of mine, and they agreed.
edit 04.10.2013:
another finding: when CPU load is high, the brightness jumps between a lower (darker) and a higher (brighter) state, even if brightness is set to manual: both devices show this behavior, although not exactly identically: my first device needs more load to start with this (it takes longer), the second one starts the dimming relatively early.
how to test: load a stress test tool (cpu prime benchmark from google play) and let it run, set the brightness to manual maximum and wait.
you will see that after a few seconds the screen will go darker, and will switch between this states. this is independent from the brightness level, it is only better seen at maximum!
i guess this is some power and/or thermal limitation (when more cores are under heavy load), it would be interesting how this kicks in in summer when ambient temperatures are higher...
edit 25.10.2013:
just to let you know: i'm now through 6 devices, all of them had display flaws in terms of uneveness.
a issue most of the devices suffer is the lower dark half of the screen: on 4 of my 6 note3's the lower half of the screen has been signifcantly darker then t´he upper half,
one had a very bad gamme increase on the left 2mm, one had a bad gamma increase on the top 2cm. 4 had a warmer white, two of them were more cold (more blue). could be due to missing or wrong factory calibration...
what is gone is the "blotch issue" i had with sgs2, note1 and note2, and: black is now really black!
but on dark grey levels the uneveness is clearly visible, look at the attached "gammatest.png"
this shows the lowest grey tones. and should be a very visible gradient from top to bottom.
go in a totally dark room, open the pic, zoom in max, and navigate to the top left corner. then pull the
picture down, and look how the numbers fade. for example: "6" should be at the same brightness level on top
and bottom of the screen. it definitely is not...
go out and test for yourself, and post your findings!

Hi there, I should be receiving my N3 next Wednesday. Are the blacks the 'true blacks', as in taking the phone in a pitch black room and blacks cannot be seen?
Thanks
Sent from my GT-N7100 using xda premium

cd993 said:
Hi there, I should be receiving my N3 next Wednesday. Are the blacks the 'true blacks', as in taking the phone in a pitch black room and blacks cannot be seen?
Thanks
Sent from my GT-N7100 using xda premium
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Click to collapse
OLED screens are the only ones I know of that can get true black. With OLED the pixels make there own light so no back light is needed, thus black pixels are not being used at all so a black image has a nice inky black color. You notice it the best when you have a colorful picture with black in it.

Malkozaine said:
OLED screens are the only ones I know of that can get true black. With OLED the pixels make there own light so no back light is needed, thus black pixels are not being used at all so a black image has a nice inky black color. You notice it the best when you have a colorful picture with black in it.
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Click to collapse
sorry, but this is a wrong statement. all amoled screens so far were NOT totally black, even if you displayed a totally black image! the reason is that if the screen is active the display controller is powered (which is the case when displaying a black image, and not if the screen is "off") which can be seen as a faint and VERY dark glow. you can only see this when the room in which you are is totally dark, and your eyes had time to accommodate. to make it worse: on all AMOLED devices i've seen so far there were patterns (like hair lines and blotches) in this grey glow, due to the manufacturing technique used (lithography).
see for reference:
http://forum.xda-developers.com/showthread.php?t=1365032
http://forum.xda-developers.com/showthread.php?t=1986338
http://forum.xda-developers.com/showthread.php?t=1949306
http://forum.xda-developers.com/showthread.php?p=32803480#post32803480
and so on...
so the question of cd993 is reasonable!
answer: note3 is the first device where i cannot see this dark glow, even in a total dark room! so a big improvement on this side. not sure what they changed, but the glow is definitely gone!

Red turns orange here to, but it doesent bother me as the screen is nice overall. Much better than my note 2

Red turns orange when screen is tilted, yes. Black are true blacks in Note 3. If you go to a pitch black room, and display a completely black screen in Note3, the phone will blend in and disappear.

Thanks guys, cannot wait to receive my device!!
Sent from my GT-N7100 using xda premium

TML1504 said:
hi,
i have to admit upfront that i'm a hypocrite when it comes to amoled screens, so far i had to switch all of my amoled devices a least 5 times until i got a unit which satisfied me. done this with the first note, and also with the second.
regards,
markus
Click to expand...
Click to collapse
Please make a quick guide of what to test and what to look for on a new note 3, in order to decide whether or not to return or warranty claim. Basically: On arrival, what would you check for, and what result would make you return it and get a replacement? How much of any issue would be ok for you to keep it..?

N3 screen : brighter and look better than Note 2 and S4 but still can not compare to the best IPS screen about white color

TML1504 said:
i have to admit upfront that i'm a hypocrite when it comes to amoled screens, so far i had to switch all of my amoled devices a least 5 times until i got a unit which satisfied me. done this with the first note, and also with the second.
Click to expand...
Click to collapse
You'll do that with any Android phone whether LCD or AMOLED because their screens aren't individually calibrated (iPhone's are). So there's some degree of acceptable production tolerances that means all built won't be identical. So whatevery you went through before you'll go through again with the N3.

Oled = true black
LCD = true white
Sent from my note 2 ya bish!

Today I got my N3 and all I can say its SUPERB!!! Abs everything

My only concern with AMOLED is the blotches that show on a grey screen in a dark environment like the first time I noticed it using Facebook. I had to replace my first Note II and even the second has some blotches but not quite as big and bad.
I've attached a grey background for your convenience to see if your AMOLED has blotches. You'll need to be in a dark environment like reading at night without the lights on (simulate by going into the bathroom and turning off the light).

mi7chy said:
My only concern with AMOLED is the blotches that show on a grey screen in a dark environment like the first time I noticed it using Facebook. I had to replace my first Note II and even the second has some blotches but not quite as big and bad.
I've attached a grey background for your convenience to see if your AMOLED has blotches. You'll need to be in a dark environment like reading at night without the lights on (simulate by going into the bathroom and turning off the light).
Click to expand...
Click to collapse
My ps vita has those blotches really bad!
You only see them in a pitch black room but I think they are the same thing.
Sent from my SM-N9005 using xda app-developers app

Pointing out to OP that the leaking light on the Note 2 (and s3) is extremely reduced in the S4 and Note 3 - you should not compare the Note 3 with the Note 2 in that aspect.

Black wallpaper on n3 = better battery life then?

Other than seeing imperfections in impractical situations, is there anything about the display that is actually bad in normal use? I mean do you see whites on this phone and think, hmm that's more of an off-white or is it like so small in difference that you need a color spectrometer to prove that it's not "true" white?

mi7chy said:
My only concern with AMOLED is the blotches that show on a grey screen in a dark environment like the first time I noticed it using Facebook. I had to replace my first Note II and even the second has some blotches but not quite as big and bad.
I've attached a grey background for your convenience to see if your AMOLED has blotches. You'll need to be in a dark environment like reading at night without the lights on (simulate by going into the bathroom and turning off the light).
Click to expand...
Click to collapse
I know what you mean. I had that on my note 2. Not so on my note 3. When I open black screen in a pitch black room, the phone becomes completely invisible as it blends in perfectly with the dark. And yes, I'm not exaggerating. It's the deepest black I've ever seen on any display, it's like the phone is actually turned off.
Sent from my SM-N9005 using XDA Premium 4 mobile app

Hi Guys!
Need info about PURPLE SEMARING. Does the Note 3 has this issue? Because all the S4 has this semaring issue although it has a pitch black. Please confirm this purple smearing. If it's totally pitch black and without smearing it will be the perfect screen out there
Thanks guys! :highfive:

iede said:
Hi Guys!
Need info about PURPLE SEMARING. Does the Note 3 has this issue? Because all the S4 has this semaring issue although it has a pitch black. Please confirm this purple smearing. If it's totally pitch black and without smearing it will be the perfect screen out there
Thanks guys! :highfive:
Click to expand...
Click to collapse
Completely pitch black...
Sent from my SM-N9005 using xda app-developers app

How white are your whites?

No, I'm not trying to sell washing powder, just trying to understand an issue I've had now with two Pixel 2 devices, and one that I posted about on the colour saturation and accuracy thread on the Real Life Review boards previously.
My first Pixel 2 arrived in December and I was immediately underwhelmed with the colour balance on the display - regardless of configuration options. Whites were very yellow - not as bad as when the Night Light was on, but far from white. So I returned the device, and a new one arrived a few days later. My second Pixel 2 is undoubtedly much better than the first. Not only was the colour balance better, it was also noticeably sharper when compared side by side. However, it still has a definite yellow tint in the whites, and some images seem to show this more than others - for example, flesh tones in the otherwise superb photos (when viewed on the device) look odd.
It's most noticeable for me when I have a nearby monitor or screen to compare. Individually the phone does not look so bad, but the whites on my monitor, laptop, tablet and even old phones are significantly whiter. (I'm not helped by the fact that I work in front of a screen all day - so I'm rarely able to avoid the comparison.)
Hence the question - both my devices have had a distinct yellow tint in the whites. How about yours?
I'd really like to keep the phone - because pretty much everything else about it is great. However, it's not a cheap phone, and because of that I'm not sure I should be making such a compromise on the display.
Any feedback appreciated.

I went to Best Buy and looked at the Pixel 2 they had there, and it had a similar yellow tint to the one I had that I RMA'd, but I don't think the tint was as bad on the one at Best Buy as it was on the one I had.

To get a comparison I just loaded the Play Store app (white background) and compared to a sheet of laser printer paper I had on my desk (under fluorescent lighting in my office). I'd have say my whites were a bit colder (i.e. less yellow) than the paper appeared under these lighting conditions.
I tried changing colour mode, but that didn't seem to have a dramatic effect on the white point, though "saturated" looked a little different - I'm not sure whether I'd describe it as "warmer" (more yellow/less blue) or just having slightly more green, but there was a very small change in colour temperature in that mode. I use "natural" myself anyway.

Large Hadron said:
To get a comparison I just loaded the Play Store app (white background) and compared to a sheet of laser printer paper I had on my desk (under fluorescent lighting in my office). I'd have say my whites were a bit colder (i.e. less yellow) than the paper appeared under these lighting conditions.
I tried changing colour mode, but that didn't seem to have a dramatic effect on the white point, though "saturated" looked a little different - I'm not sure whether I'd describe it as "warmer" (more yellow/less blue) or just having slightly more green, but there was a very small change in colour temperature in that mode. I use "natural" myself anyway.
Click to expand...
Click to collapse
Thanks for the feedback.... I'm using natural mode too - boosted, or saturated just make the whites more yellow for me. It's subtle - but noticeable.

I've also noticed yellowish whites comparing it to other screens. Even my old N6P had better whites. I don't know if it's a generalized issue we should worry about, or just stick with it.
Enviado desde mi Pixel 2 mediante Tapatalk

It's just how these screens were tuned. They are much warmer than LCD screens and look yellow when u compare to basically any other display. It's a feature, not a bug. Stop comparing and you won't notice it ?

PuffDaddy_d said:
It's just how these screens were tuned. They are much warmer than LCD screens and look yellow when u compare to basically any other display. It's a feature, not a bug. Stop comparing and you won't notice it
Click to expand...
Click to collapse
You're right of course, I need to stop comparing... I just got a bit paranoid after my original RMA'd device's screen was so poor. I think I'm going to stick with it.

Is there a way to change the TINT of the screen?

I recently sent my phone back for a screen replacement. And the new screen is insanely greenish, not partially greenish, but greenish everywhere. After comparing it with other phones, I found that it was not a too-much-green problem, because the screen still looks off with green intensity reduced with Color Changer Pro. The problem is the screen's tint is off, which should be moved towards the megenta side.
And I saw that you get to manually control the tint on Xiaomi phones. There's no such thing on Samsung's One UI. I know you can control the color balance when you set your screen mode to Adaptive, but it's wayyy to saturated and like I said, reducing green intensity won't solve the problem.
So anyone got an idea about how I can change the tint of the screen? Thanks ahead.

Question Screen temperature adjustment

I've seen a few threads here about changing the screen color but they seem to just be about boosting saturation. Is there a way to make the screen less yellow? I have root so there might be a few more possibilities.

Hi!
I might ask a stupid question, but do you have nightlight always on?
Because if this is off, the display does not look yellow .
(Settings - Display - Nightlight)

I find in my case that the whites on my screen change hue depending on the picture I choose for my home page. The one I am currently using makes the whites appear more yellow while another one I like to use makes them look pure white. Try to change images on your home page and check your whites after each change to see.

Can't say I've ever noticed a yellow tint on whites with my screen.

Quick tip on adjusting screen saturation on rooted pixel
I always found stock pixel color saturation to be a bit washed out. I prefer the look of more saturated color palette. Even choosing "adaptive" color on display options is still not good enough for me. If you're rooted and want to increase...
forum.xda-developers.com
Bxperiaz3 said:
I've seen a few threads here about changing the screen color but they seem to just be about boosting saturation. Is there a way to make the screen less yellow? I have root so there might be a few more possibilities.
Click to expand...
Click to collapse
Quick tip on adjusting screen saturation on rooted pixel
I always found stock pixel color saturation to be a bit washed out. I prefer the look of more saturated color palette. Even choosing "adaptive" color on display options is still not good enough for me. If you're rooted and want to increase...
forum.xda-developers.com

Tracker31 said:
Quick tip on adjusting screen saturation on rooted pixel
I always found stock pixel color saturation to be a bit washed out. I prefer the look of more saturated color palette. Even choosing "adaptive" color on display options is still not good enough for me. If you're rooted and want to increase...
forum.xda-developers.com
Quick tip on adjusting screen saturation on rooted pixel
I always found stock pixel color saturation to be a bit washed out. I prefer the look of more saturated color palette. Even choosing "adaptive" color on display options is still not good enough for me. If you're rooted and want to increase...
forum.xda-developers.com
Click to expand...
Click to collapse
He doesn't want to boost saturation. Just tweak white balance.

I'm using Color Changer Pro, mostly to adjust saturation, but also to balance whites. Without it the tint on my screen is pale yellowish

Bxperiaz3 said:
I've seen a few threads here about changing the screen color but they seem to just be about boosting saturation. Is there a way to make the screen less yellow? I have root so there might be a few more possibilities.
Click to expand...
Click to collapse
Yes, with the app cf.lumen you can really adjust the RGB value (I suggest lower green by -8-15%).
More details here.

therealmarv said:
Yes, with the app cf.lumen you can really adjust the RGB value (I suggest lower green by -8-15%).
More details here.
Click to expand...
Click to collapse
You gent. Thank you, trying it as well speak