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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.
I've just updated to 4.04 and everything works fine,except for one blue dot that appears in upper left part of the screen,and it only appears in dark backrounds,what to do? Will it disapear? Would it expand? And should I replace the phone ??
Sent from my HTC One X using xda app-developers app
A couple of dead pixels, perhaps? I have a similar case. No, it will not expand and I'm not sure if you can replace it for free.
Sent from my One X
I bought it before 11 days!! With 2year warranty!
Sent from my HTC One X using xda app-developers app
Try to return it, but sometimes dead pixels are considered normal behavior for lcd screens.
Sent from my One X
how can it be normal,they are supposed to do the work? I don't know what to do,I mean it is visible,its size is 1x1mm,and only in black color,I guess its the black pixels that are dead,can anyone else tell me what to do??
its looks like really really fade blue dot on black background,what that is can anyone tell me,are those black pixels or something that can be repaired,it started after update on 4.04,maybe it was there before,maybe I didn't noticed it,what should I do??
Go for warranty, if its the lcd there isn't much to do about it. Or replace the digitizer & LCD. But that's a job i won't recommend !
Mr Hofs said:
Go for warranty, if its the lcd there isn't much to do about it. Or replace the digitizer & LCD. But that's a job i won't recommend !
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would it expand,is it something crucially wrong with the LCD,it isn't pixels its like small round circle very fade blue that only appears in dark backgrounds, innoticeable in normal use....
No it probably won't expand, depends on the pixels itself, i think its bad luck. I had this problem with my tv. Sometimes you see it sometimes you don't, depends on the color that need to be displayed by the pixel.
Its like a 3 color base, 1 color breaks and on a different background you see a different color because it can't display the right color because the pixel needs that particular color to display it right .....if you get my point
How do i say this clear and basic.....mixing 2 colors will give a certain other color, now the pixel is dead it can't do that anymore, so on some colors of the screen you see a different color because the pixel can't produce that color anymore ....
Hope i say this right
more problems with screen,just noticed couple of dead pixels visible on black screen,there are maybe 10,tomorow it's off to the shop with phone...
Dead pixels aren't visible on black. Maybe you have stuck pixels.
Mr Hofs said:
No it probably won't expand, depends on the pixels itself, i think its bad luck. I had this problem with my tv. Sometimes you see it sometimes you don't, depends on the color that need to be displayed by the pixel.
Its like a 3 color base, 1 color breaks and on a different background you see a different color because it can't display the right color because the pixel needs that particular color to display it right .....if you get my point
How do i say this clear and basic.....mixing 2 colors will give a certain other color, now the pixel is dead it can't do that anymore, so on some colors of the screen you see a different color because the pixel can't produce that color anymore ....
Hope i say this right
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gotcha dead pixels I was referring in my previous post,are visible in black background,and are visible because they are white,are they dead or is that some other problem?? anyway phone will go to the shop tomorrow,because I just bought the damn thing,and it has faulty screen,warranty is 2yrs,anyway they have to accept the phone back....
BenPope said:
Dead pixels aren't visible on black. Maybe you have stuck pixels.
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my god how many pixels are they dead,hot,stuck... maybe it is what you are saying,then how do I resolve it,does it need to go to shop,or is there a quick fix,and the blue stain that I said,is visible in some angles,not in all,to be exact when I tilt the phone to the upper left corner...
Cartmanvb said:
my god how many pixels are they dead,hot,stuck... maybe it is what you are saying,then how do I resolve it,does it need to go to shop,or is there a quick fix,and the blue stain that I said,is visible in some angles,not in all,to be exact when I tilt the phone to the upper left corner...
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Click to collapse
Take it back to the shop, 10 white pixels on black is clearly unacceptable.
I got a brand new hox because of 1 stuck pixel on black backround. The phone was 7 days old.
Sent from my HTC One X
A dead pixel is one that is always black
A stuck pixel will be one that has a colour stuck on.
There are industry standard for tolerances of dead/stuck pixels.
I believe screens used in phones and televisions are type 2 which means there has to be 4 damaged pixels in a 1inch area to be considered faulty.
Though in the UK at least you can usually get a direct exchange for anything in the first 14-28 days
Sent from my HTC One X using xda app-developers app
Hello
I found 3 blue big stuck pixels, 1 tiny white stuck pixel, and minor light bleeds with a significant but little leakage at the back button spot. All of these were found under dark room when displaying black. Unfortunately I got no camera good enough to shoot under the dark condition.
The tiny white stuck pixel is nearly invisible. About 2 to 3 pixels big.
Light bleed bothers me a bit but it is almost unrecognizable in a normal usage.
Blue stuck pixels are the weird ones (they too are invisible in normal usage). Even though they are relatively big, they can be only seen when displaying black. Cannot be seen in any other colors. What would these be?
Also I bought my nexus7 in the eBay. This means that I have to pay for shipping back if I want a refund. Also there is no guarantee that I am not getting a worse one.
Should I ask for an exchange or keep it?
Thanks
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.
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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 ?
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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
Hey everyone,
I got my black AT&T Note 4 earlier today. I noticed the lower half of the screen is slightly darker, and has a slight pinkish tint on a white screen.
I do notice it in some apps, like Kindle when readinga book. Top of screen is slightly brighter, and when background is white there's a very slight pink tint.
Is that normal? Or should brightness be uniform and no tint?
EDIT: I added a photo. It's not a good photo but you can see how one side is tinted differently. In the photo the brighter top looks greenish but in real life it's not green. You can also the slight pinkish tint in the bottom half, which is the left side of the photo.
I wouldn't want to comment based on the image you uploaded directly since how a camera captures a digital display is much different than what the naked eye will see. If the picture on the panel is not consistent and appears polarized in any way, I would consider that to be faulty. Get it replaced.
Galaxy Note 4 (pink tint lower screen)
Hi there,
I have also noticed a pink tint on the lower half of the screen on new Samsung Galaxy Note 4.
As i intend to do a lot of drawing on this device the tint is unacceptable.
I wonder if there is a way to calibrate the display?
I had this issue with my Galaxy S3 display. I had at&t exchange it.
Have this same issue on my Note 4. Posted some pics over in the thread on this topic for the Note 3 before I thought to check here. Basically there's a brightness and gamma gradient from top to bottom. The top half is perfect and the bottom half gradually fades to a point where you lose the first 8-9 squares on the lagom.nl black level test.
This one emphasizes the black crush, which can be visible in video content on a dark screen (and makes dark colored backgrounds fade to black towards the bottom):
And here's one on a white background. At first it seems like a white point issue (which I would tolerate since it's common on IPS as well), but it's a brightness gradient:
Between this and the fact that AT&T disabled the slider for auto brightness I'm a little frustrated with this supposed best smartphone display ever (I realize this second issue isn't Samsung's fault, but the auto brightness is unusable without that feature). I bought the phone at Best Buy which is mostly out of stock right now so an exchange isn't likely, assuming they even take this seriously as an issue.
My note 4 does not display this issue.
No issues here. Display looks very consistent.
mkalbarc said:
My note 4 does not display this issue.
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Have you tried a dark background in a dark room? For me it wasn't that obvious until I did this (was messing around in Sketchbook). If the majority of screens are better than mine I'll definitely be trying to get a replacement as this is bothering me.
I just installed Lux to resolve my backlight issue and its settings menu background fades nearly entirely to black at the bottom.
*Edit: So far it sounds like this is an anomaly. You would expect places like Anandtech to report on it if they'd seen that amount of variation. I'm going to have a good time trying to convince someone at BB that this is a real defect though.
Erica Griffin talks about this issue in her Note 4 review, around the 20 min mark: https://www.youtube.com/watch?v=-OyNWrQJzMY
I got a replacement and it's perfect. No pink tint.
So, if you have the tint return it. Not all Note 4s are like that.
msk said:
Erica Griffin talks about this issue in her Note 4 review, around the 20 min mark: https://www.youtube.com/watch?v=-OyNWrQJzMY
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Thanks, that was quite helpful. I think in general it's easier to trust reviews on retail-purchased devices over mainstream reviews with PR department selected units.
I went to BB today and looked at the display units. All perfect, but then that's not surprising (every company gives their display/review units a second QC pass, even Apple). I'll probably head to the only BB in the area that has units tomorrow and see if I can do an exchange. As long as they don't make me sign one of those "no more returns" agreements I've heard about I'm willing to take another shot in the display lottery.
TapperP said:
I got a replacement and it's perfect. No pink tint.
So, if you have the tint return it. Not all Note 4s are like that.
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Good to hear! I'll post my results after my exchange attempt tomorrow. Aside from the gradient I am impressed with the display. Not as bright as LCD in daylight, but I was drawing on a black BG last night and noticed that it has deeper blacks than my Pioneer plasma.
Atomic Walrus said:
Good to hear! I'll post my results after my exchange attempt tomorrow. Aside from the gradient I am impressed with the display. Not as bright as LCD in daylight, but I was drawing on a black BG last night and noticed that it has deeper blacks than my Pioneer plasma.
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Fingers crossed for you to get a nice one like mine.
Yeah, the blacks and colors are amazing on the Note 4. The whites are not as bright as the iPhone 6+, but they are fine and way better than whites on my Note 2. In all other respects the Note 4 screen is overall better than even iPhone 6+'s excellent LCD.
One minor disappointment is the very high resolution has made some emulators dog slow as they attempt to render at full resolution, i.e. PPSSPP and ePSXe using ogle renderer. Hoping the devs find a workaround, maybe rendering at half or quarter rest instead - that would still be higher rest than my Note 2 at full rest. :laugh:
What's the color of your device? Anyone have this problem in the white version?
my note 4 has pink tint
I have the same problem on my Verizon white note 4 but on top half of display. Replacement should arrive by Friday :/
You can replicate this by looking at the screen at an extreme angle, obviously the ones that see green and purple straight on are screen defects.
I have a white version and whites are perfect and too bright at high setting. I keep mine half way. The whites are better IMHO than the iphones. The colors more vibrant and, the sharpness is ridiculously sharp. I dont see how they can improve it. I only thing there should be a waynto adjust the color saturation, because basic mode doesnt do much on mine.
My Note 4 has the same issue. It almost looks like the while balance differs from top to bottom, but it is really the brightness that is different.
This is a photo of my Note 4 showing a solid colored image at #030303 (very close to black). It shows how different the pixels in the bottom and in the top emit light.
Image can be seen at 1x.com/tmp/uniformity_note4.jpg
Looks like crap.
/ j
I though i had ocd with phones but that just doesnt bother me in the slightest. Cant really tell unless you force yourself
http://forum.xda-developers.com/showthread.php?p=56562683
similar problem
I have a similar issue, though mine is brighter on the right side than it is on the left. Very noticeable with dark background in lower light situations as someone else mentioned.