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

[Q] yellow/orange color problem

Hi
I have exactly the same problem as described in this Note 10.1(2014) post:
"Hi there,
not sure if it is the same thing. No matter what [Display/screen] mode I choose, yellow comes out quite muddy and dirty, I am not able to get a clear, nice yellow out of the screen, always turns out like brownish. Is this common? I had read about "accurate colors" which isn't the case with my unit. Other colors seem more natural to me...
Thanks in advance
Froschfinger"
http://forum.xda-developers.com/showthread.php?t=2500508&page=2
On my screen, all other colors than yellow/orange look great....
But the difference in yellow/orange - when compared with a Galaxy s4 or iPad - is clearly visible. Have a look at a Shell, Tide or DHL logo or compare with the yellow in the chrome logo.
Does anyone experience the same issue?

yellow/orange color problem example picture
Here is an example of the different yellow colors between Note Pro 12.2, Galaxy S4 and iPad2 in a picture (out of camera).

Similar case to the lenovo Yoga 2 Pro "yellow correction"?
I hope it's not similar to the Lenovo "yellow correction" problem. The display of the yoga 2 Pro has similar technology as the Note Pro and many Lenovo users reported the "yellow" problem (a 116 pages thread in their support forum...):
"“The Lenovo Yoga 2 Pro utilizes a Samsung LCD panel with a Pentile Red-Green-Blue-White (RGBW) pixel matrix, as opposed to a standard Red-Green-Blue (RGB) matrix on more conventional LCD panels.”
=> look for "Yoga 2 Pro 13 Yellow Color Issues" at the lenovo forums,
the pictures in the first post are very similar to mine...
The good news: It seems that a BIOS Update by Lenovo helped to solve the problem there.

I just found this issue.
In my opinion, samsung put the CMYK filter in the display software . this make bright yellow in RGB turn into "process yellow" in CMYK (make the yellow is more brown.) which is more accurate for printing .
but on the LCD screen like computor and other mobilephone, it look dull and too dark.:crying:

Might be something wrong with yours. Yellow seems ok on mine. Sm-p900 vs Nexus 10
Sent from my SM-P900 using Tapatalk

Versus Note 3...

pink color problem
drarich said:
Hi
I have exactly the same problem as described in this Note 10.1(2014) post:
"Hi there,
not sure if it is the same thing. No matter what [Display/screen] mode I choose, yellow comes out quite muddy and dirty, I am not able to get a clear, nice yellow out of the screen, always turns out like brownish. Is this common? I had read about "accurate colors" which isn't the case with my unit. Other colors seem more natural to me...
Thanks in advance
Froschfinger"
http://forum.xda-developers.com/showthread.php?t=2500508&page=2
On my screen, all other colors than yellow/orange look great....
But the difference in yellow/orange - when compared with a Galaxy s4 or iPad - is clearly visible. Have a look at a Shell, Tide or DHL logo or compare with the yellow in the chrome logo.
Does anyone experience the same issue?
Click to expand...
Click to collapse
i have another color issue but with pink color i have patches of pink color in the bottom of the screen?

Evidently. The NotePro has an LCD screen, and the S4/S5/Note 3 are AMOLED.
You can't expect the two to look alike.
Sent from my SM-N9005 using Tapatalk 2

Hey guys. Sorry for my english. Have you found anything else? I'm having the same problem here. Some sort of greenish yellow, but no problems with any other color.
Have you returned your tablet for RMA?
Thanks!

Hey guys. I noticed that whenever I pull down my notification / settings bar the yellows displayed on background stuff looks normal. This is kind of an annoying find, as it shows that the note pro is capable of correct colors

Same problem. Is there a solution?

I know that its a old thread, but is there a solution to that problem?
yellow on the Note Pro 12.2 looks more like mustard.

Yonany said:
I know that its a old thread, but is there a solution to that problem?
yellow on the Note Pro 12.2 looks more like mustard.
Click to expand...
Click to collapse
Don't compare an LCD display to a LED display, especially an AMOLED or a Retina display.
The color gamut in an AMOLED display is 4 times that of an LCD display. That means an AMOLED display can display 4 times more vibrant colours than an LCD display.
An LCD panel will never display the same level of colour vibrancy as a LED panel. Which is why LED panels are so much more expensive. (A NotePro with an AMOLED display would've cost over 2000 quid.)
There's no solution because there is no problem. It's just how an LCD displays yellow.
Using a colour correction app won't work, because you can't increase the vibrancy.

Two Edges - two different displays - difference in white and color

Strange thing.
Today I decied to compare the displays of my two Edges - one black bought right after launch, the second one white bought few days ago. Guess what? The display is not the same. There is difference in colors intensity (white one has more strong colors and the white is more clear, where the black one seems darker more dim, like used) Or at least it is my impression. I checked both in the maximum brightness and in basic mode.... So after all, not all Edges just differ cause of processor ? Anyone checked it as well ?

Here we have 2 edges- white & gold, and the displayed colors of the white s7e seem to be a little bit more pastel, but it is not a big different. However, under same displaysettings there are some differences.
Btw the white s7e has the Sony Camera sensor, the golden one has Samsungs sensor. Has nothing to do with the display, just wanted to say.

I think i know where is problem- i have damaged screen . Now i can clearly see that yhe edges of the screen have kind of red tint. Similar to tvs that have their screen burned but here is just one color red. So i guess i have two phones that gotta go under warranty. I will post photos tomorrow .

This is normal by nature of amoled or any other type of screens. They just differ by nature. However i agree your point. Newer s7 edge displays have better whites. I left my device for screen replacement and the new one have a brighter and whiter display compared to old one.
Sent from my SM-G935F using XDA-Developers mobile app

search for my amoled threads, I started quite a few during the last years. and I exchanged every galaxy device I bought a few times to get one with a decent screen!
if you place 10 devices side to side, every screen will be little different in regard to tint, uniformity,...
only about 15% are close to perfect, these are the ones cut out from the center of the display wafer during production!
Sent from my SM-N930F using XDA-Developers mobile app

Reading mode ISN'T GOOD at blocking blue light, a small research vs. Night light

I have been always using Night light before going to bed which makes the screen warmer. This is good for you before going to sleep, as blue light will disturb you. If you are new to this, search this topic up in the Internet.
So, recently I thought about using Reading mode (which converts the screen to greyscale) for night and what I found in the Internet is that this mode as well as Night light helps to fall asleep. However I was confused, as greyscale includes just shades of black and white, whereas white is the mix of red, green and BLUE. I conducted a little research using my phones and a macro lens.
I wanted to find out which colours are really being displayed when using Night light/Reading mode. I shot some macro photos of the OLED screen (OnePlus 7 Pro) and I did one shot of the LCD screen (Xperia S). Here are the results:
https://imgur.com/oPSC3Zy
https://imgur.com/9gKbStp
https://imgur.com/oWxurUr
https://imgur.com/aTBNLVo
https://imgur.com/3WidGnA
https://imgur.com/BKlD6wC
https://imgur.com/mNhqRER
Night light:
#1 As you can see, on the first photo not only are red pixels involved in Night light but also the blue light is reduced.
#2 On the second image the difference is more subtle when the change concerns white light, however when taken as one the difference is noticable.
#3 On the third image there is the same story. The bluish colour is now dimmed and some more red is involved.
#4 Here I was viewing blue and red colour. After enabling Night light the blue colour dimished strongly and the red was even more punchy.
#5 This one is taken on the LCD screen - the same trend applies.
Reading mode:
#6 Here I was displaying pure red. After applying the filter, the screen turned into some shade of gray, which is the combination of red, green and blue. Thus, blue pixels got involved here.
#7 This is again a mix of red and blue. After using the filter, they turned to different shades of grey. So on the blue side the red pixels turned on, and on the red side the blue pixels turned on.
According to this, my guess is that Reading mode doesn't really help much when going to bed, as blue pixels are still turned on when viewing any colour (apart from black on OLED screens). What are your thoughts? Am I right or do I miss something?