Red Color Problem!? - Samsung Galaxy Nexus

Hi, I have a Problem with Red Colour on my Gnex.
When I use Vodoo colour test patterns, When I switch to Red I have stripes int the red field. This only happens with Red color.
I never noticed that before, can be that this was there since i have this device (since release) or it is there since a few weeks.
Can somebody check if this is normal or if my device has a problem with display!?
I'm on Jelly bean already tried different kernels, also with color improvement. seems to be also with stock!
When I make a screenshot, and have a look on it on a normal PC screen, then the Red color is completely ok.
So iassume that something with my Gnex screen is wrong. Would be nice If somebody can give me feedback!

Are your stripes horizon all over the screen? Yes I have this too. They began at the top and spread down over the first month of usage. I think its normal for this phone.

---- moved, wrong forum, sorry------

Yes, they are horizon. But red is the only color where this happens, all other colors are without stripes.
Looking a little stupid in some apps licke kicker for example!

Anyone else experiencing theese problems?
I only would liekt to figure out if this is normal or if it is a defect!

I also have this issue, it happens in all colors but more obvious in red.its annoying as **** when you start noticing it.when i record videos its really obvious in dim light. Im just glad im not the only one.:/
★Sent from my NexusPrime★

I have also noticed this sh** , but my brother nexus does not have the same problem
any one knows why ?

My guess it's a side effect of the pentile matrix. AMOLED screens have a significantly lower life span than your traditional LCD screen and does degrade with time. This is also noticed in how the color balance gets very off with time (and does pretty dramatic changes over just the span of 1 month!), usually colors meant to be neutral looks very ugly green-tinted.
As for my screen? I noticed it in all the primary colors. Red was for sure had most visible "banding" but when I looked closely I noticed it as well in the green and blue as well (green being the least visible).
My Gnex is a year and a few months old as I've had it since February last year.

same thing happened to my screen in about 1_2 weeks when I got my phone. All colors were affected, but red is the most obvious. Pentile is ****
Sent from my Galaxy Nexus

But why my brother's nexus is still ok ? although he bought his nexus before me ?
So are you saying that any pentile screen would face this ?

up

IIEtCII said:
But why my brother's nexus is still ok ? although he bought his nexus before me ?
So are you saying that any pentile screen would face this ?
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Do you really need someone to point out that not all screens are made equal? If it drives you to distraction, root and install Trinity Kernel or Franco's Kernel (which has Trinity's Contrast) they have a plethora of colour options.
I run a very icy-white colour on my Nexus.

Related

Three strikes and out.. :(

I have been through three separate Galaxy Nexus handsets and they all had issues.. mainly screen related!
1st handset - got it on launch day UK.. vertical grey lines on screen and volume bug.. exchanged it..
2nd handset - last week.. horizontal grey lines on screen and paint like blobs all over the screen in lower brightness levels.. exchanged it..
3rd handset - today.. horizontal white band across screen.. and vertical colour gradient down the screen.. returned!
I really like ICS and wanted to like the Galaxy Nexus.. I am really disapointed to have waited months for this phone to be let down by poor quality control..
I have decided I will not get another Galaxy Nexus (or Samsung phone - past experience)..
Eagerly waiting for HTC's interpretation of ICS.. meantime.. I sold my HTC Desire (big mistake)..
Wanted to thank everyone here who posted a lot of useful information..
Could be worse... you could be in the US and not even be able to purchase it yet.
Too bad.. i Love this phone... its superd.
Sent from my Galaxy Nexus using XDA App
Does this issue have something to do with the super amoled display? Have people heard of this in earlier phones ?
Sent from my Galaxy Nexus using XDA App
That's harsh but I've not noticed anything wrong with my handset - perhaps my eyes just don't notice these sorts of things (or I don't seem them as an issue). I'm sure I'd notice white lines though!
there is known issue with the display when its on low brightness. it goes away when its at high brightness.
if you can't live with that, i am sorry for you. you are missing out yet another pure google experience device.
It's hard to say w/o actually seeing them, but the "vertical grey lines" may have been perfectly normal. From what I've read, there's some level of streaking that normally occurs in these types of displays. On mine, when I have the brightness all the way down and am on a white screen, you can see something that might be described as "vertical grey lines."
A lot of Nexus Galaxy's I've seen have this screen anomaly, which is the vertical streak(s) going down the phone. This is only on white/gray backgrounds, as the screen is absolutely fine with other colors. The issue can be resolved by turning off the automatic brightness and manually adjusting the screen to at and/or above 30% brightness. Or you can flash one of the auto-brightness mods to turn up the default brightness.
nyijedi said:
It's hard to say w/o actually seeing them, but the "vertical grey lines" may have been perfectly normal. From what I've read, there's some level of streaking that normally occurs in these types of displays. On mine, when I have the brightness all the way down and am on a white screen, you can see something that might be described as "vertical grey lines."
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Click to collapse
My gray lines are horizontal and quite clear on a lighter grey screen.
So sad to hear. I just got my phone and absolutely love it
Sent from my Galaxy Nexus using XDA App
sorry for your issues.. loving mines
fr4c said:
A lot of Nexus Galaxy's I've seen have this screen anomaly, which is the vertical streak(s) going down the phone. This is only on white/gray backgrounds, as the screen is absolutely fine with other colors. The issue can be resolved by turning off the automatic brightness and manually adjusting the screen to at and/or above 30% brightness. Or you can flash one of the auto-brightness mods to turn up the default brightness.
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You shouldn't have to do anything to get a perfect screen on a phone that costs this much.
randypurcz said:
You shouldn't have to do anything to get a perfect screen on a phone that costs this much.
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From what I understand, it's an inherent characteristic of the type of display. If it bothers someone that much, buy a phone w/ a different display.
Hey guys I just saw this and thought I would Give my experience...
I myself got a Galaxy S2 a month back barely and noticed it has the same horizontal lines... about 2 horizontal ones and one diagonal one... along with some blotches... this is a manufacturing fault due to terrible quality control which has started after the super amoled plus screens and sadly and surprisingly seems to have carried on to the amoled HD ones too... never any such issues with the super amoled on the galaxy S including tthe one I owned...
Since it's a manufacturing defect the phone will be replaced generally but unfortunately in my region there is no official Samsung dealer for the S2, I had to live with my purchase...
Again as people have already mentioned you can only see them on the lowest brightness setting or if you are only looking at a dark screen... sometimes can see the lines on grey but depends on other surrounding colours...
I know I'm not happy about iit since it was so frikking expensive, but its still something which guess I can live with... doesn't really make the phone any less amazing...
Would have loved to try the nexus... but just couldn't get myself to go for the missing features...
Sent from my Galaxy SII
feel your pain m8 , ive had like 4 sII returned for same kinda issues sensation xe that twice got dust under screen. And now well first phone transparant line annoying as hell second crazy colour banding like you never seen try searching "crazy colour banding" my third arrived with broken screen so awaiting 4th i love this phone but samsung qq is awfull. I can appreciate people say its down to the tech / characteristic but if thats the case why do the reviewers never get one of these handsets .... hmm wait probably becouse they got a cherry picked one.
Anyway if it is a characteristic they could at least put something in the docs they include with phone so the consumer is aware. Or raise the parameters of the screens they pass thru in manufacturing. I know its a different situation but its not like you would except a tv or laptop with these issues so why do we have to accept it with out phones which quite frankly these days can cost more then a laptop or tv.
you do know there are version of Samsung phones with sLCD instead of SAMOLED displays, eh?
if the display is your gripe, then just waint for the SLCD versions of the same phone
like the SGS2 for example or the next version of Galaxy Nexus i9253 with SLCD
kkh786 said:
I have been through three separate Galaxy Nexus handsets and they all had issues.. mainly screen related!
1st handset - got it on launch day UK.. vertical grey lines on screen and volume bug.. exchanged it..
2nd handset - last week.. horizontal grey lines on screen and paint like blobs all over the screen in lower brightness levels.. exchanged it..
3rd handset - today.. horizontal white band across screen.. and vertical colour gradient down the screen.. returned!
I really like ICS and wanted to like the Galaxy Nexus.. I am really disapointed to have waited months for this phone to be let down by poor quality control..
I have decided I will not get another Galaxy Nexus (or Samsung phone - past experience)..
Eagerly waiting for HTC's interpretation of ICS.. meantime.. I sold my HTC Desire (big mistake)..
Wanted to thank everyone here who posted a lot of useful information..
Click to expand...
Click to collapse
I have a horizontal line on my screen. I might be able to post some photos of it later. Adjusting the brightness has no effect.
Sadly getting an exchange. Really enjoying the phone so far.
Sent from my Galaxy Nexus using XDA App
I love my nexus
Sent from my Galaxy Nexus using xda premium
I have the gsm GN in US. I have also noticed that at lowest brightness level screen on my phone has a darker red/greyish tint from the top of screen towards the center. But I am not returning it. I have seen similar issues with my SGS2 that I exchanged. However my retired Captivate had a perfect screen. I guess it has to do with SAMOLED displays.
Sent from my Galaxy Nexus using XDA App
Your first phone had nothing wrong with it. The grey lines are part of the Super AMOLED display. Any Super AMOLED screen will behave that way, apparently. And it's really only apparent on low brightness. I turned mine off auto and set it to about halfway and it looks great now. Can't even notice it.
As for the volume bug, that's a software issue and was fixed with the latest OTA update...

Green tint?

Just got my VZW galaxy nexus, and im loving it so far, but have noticed something odd: toward the top of the screen (about 1/4 of the way down from the top) there seems to be a very slight green tint, noticeable only when looking at a dark background (like the settings menu).
It's kind of hard to explain, does anyone else have something similar on their phones? Is this normal for amoled screens or should I ask for a replacement phone?
i believe it has to do with it being a pentile screen... well, 'HD' pentile, but still..
i'd say if you try an exchange, make sure you the test the other in store first.
can anyone with a galaxy nexus please post a photo of their phone on the settings menu? (scroll all the way down)
melterx12 said:
can anyone with a galaxy nexus please post a photo of their phone on the settings menu? (scroll all the way down)
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Pretty sure the setting menu is a background gradient with an intended color shift.
But yeah, mine has a blueish/greenish hue if I tilt the phone away or towards me in portrait mode. Straight-on, I don't notice anything.
yeah i am talking about viewing straight on
mine has this greenish tint slightly at the top right screen...
that settings menu then scroll all the way down is normal.. the color is not as dark as the top. I'm seeing greenish tint when on white background
I have a very light greenish tint on the right side of the phone on white backgrounds with text when at low/automatic brightness. The green goes away when I bump brightness to 40%+.
Did you try that?
Oddly, when I ran pixel checker, the pure white background has no green tint to it at all.
Yeah, at low brightness I see a tint/haze but at full brightness, everything looks beautiful.
Welcome to the world of pentile.
I see the same green tint on my screen. I thought it was normal, but I compared it to another unit today and saw that my display was both dimmer at the same brightness level and had a greenish cast and different color temperature than the unit I was comparing it to. I'm not sure if this is within the normal variance for these displays, but my phone certainly looks worse to me than the one I compared it to.
Both units also showed a green/blue tint when viewed off axis but with greater discoloration on mine. The second unit showed almost no discernible tint when viewing a white screen straight on unlike mine.
melterx12 said:
Just got my VZW galaxy nexus, and im loving it so far, but have noticed something odd: toward the top of the screen (about 1/4 of the way down from the top) there seems to be a very slight green tint, noticeable only when looking at a dark background (like the settings menu).
It's kind of hard to explain, does anyone else have something similar on their phones? Is this normal for amoled screens or should I ask for a replacement phone?
Click to expand...
Click to collapse
i have the same problem. Sometimes (usually after a power down and restart) my entire screen is very dark and has a, very obvious, green tint to it. I compared my phone to my girlfriends at the same display setting and the tint is very obvious (especially when i'm viewing menu, text messages, browser). When i adjust the brightness it seems to make it less obvious, but still there. However after certain power down and restart this "green tint" seems to 'go away' only to either gradually re-appear or just happen when my phone self adjusts to "automatic brightness" setting.
p.s. my phone also, had another minor issue of random re-start when listening to music (via google music) and adjusting the sound effects option. After that restart my phones display was significantly tinted and dark. Weird, Either way getting a replacement unit tomorrow.
Mine has a very slight green tint on the left hand side of the screen when at the lowest brightness and viewing a white background.
I normally have the brightness bumped up a bit, but it still bugs me when I have it low
EDIT: Checked pixel checker, has the green tint. I can definitely see it on the keyboard as I'm typing this though
I took my unit in to Verizon today for an exchange. New one doesn't have as significant of color shifting or banding issues.
crazeco said:
I took my unit in to Verizon today for an exchange. New one doesn't have as significant of color shifting or banding issues.
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Click to collapse
yeah i got mine replaced the next day, all good now. No green tint, reduced banding, and much better viewing angles (the first one heavily tinted green or pink colors when viewing it from the right or left side, respectively)
Alright, got a replacement today.
No green tint that I can see, almost no banding and the colors don't change like, at all when I tilt the phone.
Now my nexus truly is perfect
Sent from my Galaxy Nexus using XDA App
DoctorSasquatch said:
Alright, got a replacement today.
No green tint that I can see, almost no banding and the colors don't change like, at all when I tilt the phone.
Now my nexus truly is perfect
Click to expand...
Click to collapse
Sorry, I find this very hard to believe. *ALL* pentile AMOLEDs change colours like crazy when you look at them at a sharp angle. It's a characteristic trait of this kind of display.
Pics from various angles or it didn't happen. ;-)
Valynor said:
Sorry, I find this very hard to believe. *ALL* pentile AMOLEDs change colours like crazy when you look at them at a sharp angle. It's a characteristic trait of this kind of display.
Pics from various angles or it didn't happen. ;-)
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Click to collapse
Yeah, I was exaggerating, but compared to how bad it was with the other one its crazy. Very less noticeable than my first one
Sent from my Galaxy Nexus using XDA App

Galaxy Nexus - Purple Tint + Grainy Screen

Hey Guys,
I just got my GSM Nexus about 2 days ago from Germany (Ordered it online and my uncle bought it here in India for me). The phone is AMAZING! I love everything about it! Specially the screen... but I just noticed something. I was going through some thread regarding the screen of the Nexus. My phone has some serious contrast issues.
The black (Pure black), on the screen is perfect. Say for example - The navigation bar. But when the phone is on low brightness level, the greys turn into purple! This is a common issue, I know, just keep reading..
At low brightness level, I can see the grains on the screen, they are very much visible and all the greys turn into purples! NO idea why! It's actually really annoying, my keyboard, my settings background and notification drop down literally turns purple.
So searching for this issue, I tested the screen through this - http://www.lagom.nl/lcd-test/black.php - The first black, IS PURPLE ON THE PHONE. The background is pure black but the first black sample is purple!
I just noticed that even on 100% brightness I can see the grains and there are some purple stuff I can still see! Specially the starting of the gradient on the Settings menu.
I'm really worried right now. I have the bill/invoice of the phone. The warranty period is 2 year but I'm not sure whether they'll replace the phone's screen here in India through warranty or not. If not, I'll be so depressed.
Any idea as to what I should do?
I would contact them about the issue being resolved through warranty. The only thing I would be worried about if they did cover it would be if they exchanged it for a new one and it ended up having the same problem(since it seems somewhat widespread from what I have read). Not sure how the warranty works though. Best of luck to you!
I went through 3 Galaxy S II's before finding one that had an acceptable (but grainy) display.
My Galaxy Nexus has annoying SAMOLED issues as well, such as vertical lines and color banding, graininess, spots, etc. All I can say is don't expect a perfect screen, even if you get a replacement.
The biggest problem is - The Galaxy Nexus has not been launched in India -.-
I just sent a mail to the head of Samsung service but didn't get a positive reply they're saying that the replacement of the screen will be costly. Really disappointing.
I am really sorry to see that Samsung won't replace this phone. I had this same exact issue with the purple tint especially on low brightness. It is very noticeable on certain backgrounds or shades of black where it suddenly turns purple. The best example I could find was putting the standard color gradient wallpaper that comes with ICS and turn on the clock program and with the brightness on low turn the clock to dark mode and the purple shows up all over the place. It is quite annoying because this affects everything you do with the phone. Luckily I was within my 30 day trial period so I could get it replaced. The new phone is perfectly fine.
Had this happen to me on my replacement phone. Took it in to verizon and the reps thought I was crazy. I tried to explain that it was mostly visible with low light levels and that they should take it into the back and look at it but they just stood there. So, my third phone should be here today and I am going to be pissed if it has any issues.
I still think this is a great phone regardless of the above issues
Yeah I don't think it's the OP's phone that has the problem. I think all Galaxy Nexuses have the same problem.
Sent from my Transformer Prime TF201 using Tapatalk
Really disappointing though. I paid a hell lotta money for this thing It's the GSM version..
I always assumed that this was the standard color pattern of the Gnex. Mine has it, and I've gone through 3 screen replacements so far and all of them had it.
From what I heard Supercurio might be working on Voodoo Color for the Galaxy Nexus so hopefully it will be able to adjust the colour balance so the grey looks more grey. As for the grain effect I don't think there will be a way to fix that since from what I read it is caused by pixel inhomogeneities.
Anyway if it makes the OP feels any better once you get used to it you hardly notice the problems at all unless you specifically look out for it. Any screens you buy have some sort of imperfections and the Galaxy Nexus's is definitely one of the least imperfect.
Sent from my Transformer Prime TF201 using Tapatalk
It took me 3 exchange to get rid of purple but now I have vertical banding.
Quality control sucks...it just that simple.
Sent from my Galaxy Nexus using Tapatalk
I don't have any grain, but my keyboard looks purple from ~20% and lower brightness. Bit of a shame, it's the only chink in this phone's armor so far, but it ceases to become an issue at ~50% brightness, which I use. Until now I thought it was a part of the ICS colour pallette as even pulling up a sample of dark grey on Google doesn't replicate the purple
Such a weird issue this is! I also have an HTC Sensation with Vanilla ICS 4.0.3 - The greys are perfect due to the SLCD panel, no grains too!
But meh, whatever! The Nexus's screen is sexy! So pure! (At high brightness levels)
I'm always going to love it
Okay great news! I talked to the manager of Samsung Mobile India CC - He agreed and told me to visit the nearest service center. But now it depends on the SC to change the screen or not.
I think this is just normal for this phone...I just got mine and its purple too...no biggee... still an awesome screen.
ezcats said:
I think this is just normal for this phone...I just got mine and its purple too...no biggee... still an awesome screen.
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Click to collapse
Exactly! Do you have a grainy screen too?
My first Galaxy Nexus seemed perfect, I didn't even know about these screen problems, because mine didn't have them and I so I really ignored topics about screen problems.
Then I swapped it out for a cheaper open box Galaxy Nexus. Now I'm seeing a purplish tint to my dark wallpaper when I have the brightness level down. And more troubling is I seem to have a grainy effect mostly visible on grey backgrounds at any brightness level (I see it a lot with the Market and Kindle apps). I don't seem to have a grainy effect with other colors though that I notice.
Little disappointed. But don't think there is much I can do because it was an open box. Doubt the retailer would let me exchange it. Does Samsung offer warranty support for the i9250 in the US? I go to Samsung's support website and enter my i9250 model number and it just says invalid.
Ravynmagi said:
Does Samsung offer warranty support for the i9250 in the US? I go to Samsung's support website and enter my i9250 model number and it just says invalid.
Click to expand...
Click to collapse
Just find a service e-mail ID and send them a mail! That's what worked for me! They'll reply back by the next day. Try to convince them as much as you can!
The purple may be common, but it's certainly not normal. My first GN had deep blacks and very nice neutral greys. But it had two dark blotches that were visible on a black background without having to be in total darkness - just evening lighting would make them visible. But the colors were similar to the Nexus S it is replacing. The replacement GN I got has the normal amount of graininess at low light settings, which is acceptable to me, but the colors have a very purple tint and the contrast is not very good - holding it up between the first GN that I have to ship back and the Nexus S makes the purple and low contrast very obvious. Maybe third time will be the charm....

Screen of GN

Hello, I intend to buy the Galaxy Nexus but the problem of the screen burn-in scares me. When I buy a phone, it's for two years, does the problem still exists in the new series?
Bump
I know the ones at the store have this problem, but thats because they are full brightness all the time. I make it a point to use my phone in landscape clockwise, i.e. with pogo pins down, so the on screen buttons are on the opposite side as they usually are, and i haven't noticed any burn in. In low brightness conditions, you'll occasionally see some ghosting, but its not a big deal. They gave you extra blue pixels (rbgb), since those are the ones that are the weakest, to make sure your screen lasts 2 years.
had gnex since release date and had no problems with it what so ever, however, when bough had issues with screen itself e.g uneven colouring and banding (quite visible grey bars), replaced it and the model i got is fine so far...
I use most of the time my phone with middle brightness or minimum+screen filter during the night, as i don't use it at maximum, i will not get burn-in ?
Never had this issue with any phone.
Don't wanna open a new thread since this is a similar topic.
I've noticed a very faint light blue-ish stripe on my screen (where the notification bar is) while reading text on a white background (in fullscreen).
Is that burn-in? If so, is it covered under warranty?
Puck24 said:
Don't wanna open a new thread since this is a similar topic.
I've noticed a very faint light blue-ish stripe on my screen (where the notification bar is) while reading text on a white background (in fullscreen).
Is that burn-in? If so, is it covered under warranty?
Click to expand...
Click to collapse
People say it is not burn in but uneven wear of the pixels. I know if read about people running a white background I think it was overnight on high and it will start to remove the marks. The idea is to run other colors to wear in the spot evenly as the top bar usually is only running black.
If you do some searching around in these threads you will read what others have done and what has worked.
Puck24 said:
Don't wanna open a new thread since this is a similar topic.
I've noticed a very faint light blue-ish stripe on my screen (where the notification bar is) while reading text on a white background (in fullscreen).
Is that burn-in? If so, is it covered under warranty?
Click to expand...
Click to collapse
I have this too, but calling it burn-in is wrong I think. Those pixels are black (i.e. turned off) most of the time, so they couldn't possibly be "burned into" the screen. Rather, the issue seems to be that they are getting used too little, so they are not worn in as much as the rest of the screen. Since all screens of this type change slightly over time as they get used, there is a small but noticeable difference in how these different areas of the screen display certain colors.
[email protected] said:
People say it is not burn in but uneven wear of the pixels. I know if read about people running a white background I think it was overnight on high and it will start to remove the marks. The idea is to run other colors to wear in the spot evenly as the top bar usually is only running black.
If you do some searching around in these threads you will read what others have done and what has worked.
Click to expand...
Click to collapse
I haven't tried this, but it certainly seems like it could work.
Thx. Will try that
Sent from my Galaxy Nexus using xda app-developers app
The app "Display Tester" has a burn-in removal function that some people have found useful.
galaxy nexus (gsm) / cm9 / trinity @ 1.4GHz
How is the burn in factor any different than the great of the screens out there the gs3 epic vibrant you get the point aren't they all s amoled or amoled plus screens how would this phone differer with the burn in factor on the other devices
Sent from my Galaxy Nexus using Xparent ICS Tapatalk 2
GN got a nav bar present all the time, and it will get burned in, most people don't realize though they have it.
Same goes for notification bar.
They need to be semi transparent to fix the issue which we don't have.
Even the browser doesn't remove the nav bar.
Only YouTube and full screen movies will show you that issue.

Tab S 8.4 Screen homogeneity issues

The reasons why I purchased a Tab S 8.4 were its awesome screen quality and high grade processor. For the later, the poor touchwiz optimization and the average gpu led to disappointing results. But well, the screen IS awesome !
Or is it ?
At first, I was truly impressed. But after some web browsing and reading e-books, something felt wrong with the colors homogeneity. On white backgrounds, the right part of the screen in portrait mode would tend towards a yellowish tone, while the left part would tend toward purple tones. Nothing obvious, but quite annoying when noticed.
After trying around with different backgrounds, it become more obvious with certain colors. The one used in settings background for example: The left side of the screen is deep blue, the right part is much lighter.. and greener.
Further investigating the issue, I figured it is most obvious when watched in the darkness and using dark colors: RBG such as R:0, G:10 , B: 20 or even R:20, G:10, B:0
Did anyone else notice similar issues ? Would you guys mind trying to create a R:0, G:10, B:20 (#000A14) background and check the result on your tab S in a low light environment ? On mine, it results in an obvious gradation from dark blue to green.
Attaching some pictures. The rendering is not the best especially in the darkness, but the issue remains clearly visible.
There is something very wrong with your screen. Return it.
suzook said:
There is something very wrong with your screen. Return it.
Click to expand...
Click to collapse
I second that, that is not normal
I concur with the others, get it replaced.
AMOLED screens can fail for any number of reasons (pixel death is the main one) , if yours is showing problems get it replaced now rather than live with it and have a more serious problem later.
We've seen this yellow color issue reported by a few others. Looks like Samsung let a few diseased horses out of the barn. I concur with the others. Return it.
Thanks for your feedback, guys.
I'd like to highlight the fact this issue goes completely unnoticed in most scenarios. A friend I showed it on white background didn't notice it at all, in movies/games/pictures I don't see it at all. I only felt it while reading, and even then it was not obvious, just a persistant feeling that led me to further testing.
Only the extremely dark colors seem to be affected, and even then it's only noticeable in the darkness. I will go back to the store tomorow and exchange it for a new one, but I'm wondering if the issue isn't widespread and simply went under the radar as its effect is hardly noticeable in 99.9% of the situations.
Did anyone else check at an homogenous R:0, G:10, B:20 image in the darkness with their tab ?
I personnally used Moon+ Reader's background color settings for testing purpose, pretty easy to set up.
New Tab S, same issue
I changed my Tab S 8.4 today for a brand new one. Same test, same issue: the background is still not homogeneous. The issue is visible in the darkness on dark colors such as the one used for the settings menu, which seems naturally gradated from deep to lighter blue on my screen.
Could someone else test and reproduce the issue on their tab ?
I have tried to reproduce what you're seeing on my 10.5 and honestly I can't. I'm not going to say the white is always 100% pure white but it's close enough. At the same time I'm trying to avoid looking for something that's not there for my Tab.
ukael said:
I changed my Tab S 8.4 today for a brand new one. Same test, same issue: the background is still not homogeneous. The issue is visible in the darkness on dark colors such as the one used for the settings menu, which seems naturally gradated from deep to lighter blue on my screen.
Could someone else test and reproduce the issue on their tab ?
Click to expand...
Click to collapse
Maybe you can go into Settings / Accessibility / Vision / Color Adjustments and see if your calibration is off. There is a test there where you arrange tiles by color gradation and it adjusts your screen. I am having none of the issues you mentioned, but my 10.5 Tab also passed that test with no color adjustments required. Give it a try.
mitchellvii said:
Maybe you can go into Settings / Accessibility / Vision / Color Adjustments and see if your calibration is off. There is a test there where you arrange tiles by color gradation and it adjusts your screen. I am having none of the issues you mentioned, but my 10.5 Tab also passed that test with no color adjustments required. Give it a try.
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Test completed successfully. The calibration is fine, and the issue is not noticeable during the test. The issue is actually not noticeable in most usages, I only see it on homogenous very dark color backgrounds (the 10% darkest colors), and while in a dark environment myself. In most common usages, the screen looks fantastic and flawless.
Unfortunately, I often use my toys in my bed in the darkness. AND I am concerned about a possible defect that would get worse over time.
That said, tests on similar colored backgrounds on other AMOLED screens (PS Vita, Galaxy SII) lead me to think this could be a global issue with AMOLED.
Unfortunately, I often use my toys in my bed in the darkness.
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Lol, to those of us with a perverse sense of humor we would refer to that as a hanging curveball.
Whatever issues you are experiencing I would take that over LCD light bleed any day.
ukael said:
Test completed successfully. The calibration is fine, and the issue is not noticeable during the test. The issue is actually not noticeable in most usages, I only see it on homogenous very dark color backgrounds (the 10% darkest colors), and while in a dark environment myself. In most common usages, the screen looks fantastic and flawless.
Unfortunately, I often use my toys in my bed in the darkness. AND I am concerned about a possible defect that would get worse over time.
That said, tests on similar colored backgrounds on other AMOLED screens (PS Vita, Galaxy SII) lead me to think this could be a global issue with AMOLED.
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Dear Friend. Like you I am very sensible in that point. I have a lot behind me and I can tell you, that homogeneity is something we can not expect from all types of modern displays, except the pro ones with a special function that takes care about this issue. Any screen has such issues, the question is just what type of and the intensity differs. The lower the light in our environment the more sensible our eyes get. The longer we stare into the screen the better we see all color details. Worst case scenario is a totally darkened room. Your eyes won´t get more sensible than in such a situation. Especially AMOLED displays will show the strangest kind of irregularities you would never see normally. I remember the Tab 7.7 -- in a dark room the screen was over and over covered with black circles. Wow ! The Vita shows strange textures instead. It is horrible.
My advice to you would be to start trying to avoid using your tablet or any display in a dark room. Turn a light on, it will be nice for your brain and eyes and you will not see the described things. It´s just a matter of habit, nothing else. You will get used to it and probably feel very well with it. Anyway there will still be the green haze.... Not to talk about the yellowish etc. stuff.
I returned the Tab S for a MiPad and it´s much better, really nice homogeneity (compared to other actual devices).
I had 4-5 iPad Mini Retina and all of them have horrible yellowish/blueish tint.
I had 4 iPad Airs, 3 were horrible in a similar way, now the 4th one is okay, I finally had luck.
I had 2 Galaxy 12.2 - the first one yellowish in a quarter, the second has just a slight, short yellow stripe on the bottom border.
I had a Kindle Fire HD + HDX - both with bad, ugly green spots at borders and corners. Also partially yellowish.
Once I held a Galaxy Tab 3 in my hands that was actually flawless. I was shocked. It never happened again. Was from a classmate.
Today I guess it was a mistake since I could not test in in a home-at-night-environment.
I checked dozens of Tablets in big stores here - guess what I found ???
Look at the iMacs .... Horrible yellowish tint. Horrible. It´s a shame.
I use my Tab S 10.5 in a dark room with some regularity. I've never experienced any of these odd artifacts you guys are discussing. My black screen is just black. Colors look right. White is white. I think its a fallacy to claim that all amoled screens face these issues. The amoled screen on the Tab S is the best most advanced amoled screen ever created. Problems from older devices shouldn't apply here.
Please remember based upon other user input, Samsung did seem to have a run of defective screens on these tabs they put out.
Here's a quick video test taken in a pretty dark room (it's daytime here). As you can see the screen is just black. There is absolutely no reason to avoid viewing your Tab S in a dark room. If you are not seeing the solid black I have demonstrated in this video I suggest exchanging your possibly defective unit.
ukael said:
Did anyone else check at an homogenous R:0, G:10, B:20 image in the darkness with their tab ?
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In my experience 100% of AMOLED displays exhibit this behaviour, i.e. both Tab S 8.4 I've had! The first one (exchanged because of unhappy whites) had it so obviously that it looked like a diagonal gradient fade to one corner. The second tablet shows it as a slightly patchy screen, see attached photo which looks worse than the reality.
This is only visible in a completely dark room with the display set to its darkest (or close to), displaying a very dark image (my photo is of the spec. you mentioned - hence blue/green colour). To show this I needed to use an exposure of about 1 second, if you use less the image will appear black, likewise (probably) if you try to capture it as a video using normal ISO values in camera, the camera won't pick up the background.
Armpowered said:
In my experience 100% of AMOLED displays exhibit this behaviour, i.e. both Tab S 8.4 I've had! The first one (exchanged because of unhappy whites) had it so obviously that it looked like a diagonal gradient fade to one corner. The second tablet shows it as a slightly patchy screen, see attached photo which looks worse than the reality.
This is only visible in a completely dark room with the display set to its darkest (or close to), displaying a very dark image (my photo is of the spec. you mentioned - hence blue/green colour). To show this I needed to use an exposure of about 1 second, if you use less the image will appear black, likewise (probably) if you try to capture it as a video using normal ISO values in camera, the camera won't pick up the background.
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All I can say is that is seriously messed up. My screen looks nothing like that and just as pitch black as in my video. Considering black pixels in amoled screens are basically turned off, they should be utterly and completely black and devoid of light. Am I misunderstanding and your picture is of a blue background?
All other dark colors should be solid without strange light effects as well.
mitchellvii said:
All I can say is that is seriously messed up. My screen looks nothing like that and just as pitch black as in my video. Considering black pixels in amoled screens are basically turned off, they should be utterly and completely black and devoid of light. Am I misunderstanding and your picture is of a blue background?.
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It's daytime for me at the moment but yes from memory, if you display an actual black image then it will appear as black, you see this effect when trying to display an image that is almost black, at very low levels of light output the (my!) panel isn't even.
The attached image is R0 G10 B20 and on my PC looks black - it isn't I just used "ColorPic" to check the screen colour and it shows those values.
It's not a big issue but does appear when using in fully dark room with brightness turned down, I notice it in some apps that have very dark background colours (which you'd assume were black and see as such in daylight, but aren't).
Obviously under these circumstances an LCD would appear as a (relatively) bright grey !
Armpowered said:
It's daytime for me at the moment but yes from memory, if you display an actual black image then it will appear as black, you see this effect when trying to display an image that is almost black, at very low levels of light output the (my!) panel isn't even.
The attached image is R0 G10 B20 and on my PC looks black - it isn't I just used "ColorPic" to check the screen colour and it shows those values.
It's not a big issue but does appear when using in fully dark room with brightness turned down, I notice it in some apps that have very dark background colours (which you'd assume were black and see as such in daylight, but aren't).
Obviously under these circumstances an LCD would appear as a (relatively) bright grey !
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OK I'm a bit confused. The image you attached looks either black or very very dark gray on my screen. No color variation at all. Oh well
mitchellvii said:
OK I'm a bit confused. The image you attached looks either black or very very dark gray on my screen. No color variation at all. Oh well
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Same on my tab in daylight, it only appears patchy when in a very dark room with brightness turned right down. Maybe amongst the variations some will be perfect?
Armpowered said:
Same on my tab in daylight, it only appears patchy when in a very dark room with brightness turned right down. Maybe amongst the variations some will be perfect?
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Still beats LCD light bleed

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