Faint spots on black backgrounds - Samsung Galaxy Nexus

Any else notice dark blobs when displaying black backgrounds? I believe they're air bubbles, as they disappear when pressed. Is this typical of SAMOLED screens and does it go away? Or should I take my device back in?
Sent from my Galaxy Nexus using XDA App

I have noticed some lines on my screen when displaying in low brightness, do you see these spots on all brightness levels ?

Resolved! Looks like using the handset for a day--pressing it against my face, putting it in my pocket, et cetera--has made the blotches disappear. I only noticed them last night while reading from the kindle app, night mode, minimum brightness in a dark room. It's been about 12 hours since (and a little less than 24 hours since purchase), and testing it again in a dark room, the blotches are no longer an issue.
My theory is that it was air bubbles between the digitizer/glass/lcd, and it hadn't quite 'set'. This phone has only been out a week here in Korea, and it's been sold out everywhere, so I'm guessing that we're receiving these units as soon as they roll off the assembly line. The store I bought mine from didn't even have them on site, so they had to get a bike messenger to bring one from another location.
No lines, however. I'm not sure what that's about. Is it a banding type effect? Or are they thin, sharp, and jagged?

Goat_For_Sale said:
I have noticed some lines on my screen when displaying in low brightness, do you see these spots on all brightness levels ?
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Click to collapse
the lines are due to the pentile screen. at least with the higher res/ppi it doesn't do that fuzzy text/icon b.s. like the RAZR(at least not noticeably to the average eye).

Related

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)
Click to expand...
Click to collapse
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.
Click to expand...
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. ;-)
Click to expand...
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

Screen problem: Is this affect of Pentile Matrix or not.

Hallo friends, i read lot of about problem with this kind of display( pentile matrix)
I have vertical and horizontal banding too. But this one is something what is bothering me much more.
http://imageshack.us/photo/my-images/208/imgp5137v.jpg/
http://imageshack.us/photo/my-images/809/imgp5134.jpg/
Delarock said:
Hallo friends, i read lot of about problem with this kind of display( pentile matrix)
I have vertical and horizontal banding too. But this one is something what is bothering me much more.
http://imageshack.us/photo/my-images/208/imgp5137v.jpg/
http://imageshack.us/photo/my-images/809/imgp5134.jpg/
Click to expand...
Click to collapse
That's nothing to do with the Pentile Matrix! Definitely a defective screen, return it to the store and ask for a warranty replacement. The 'banding' is more to do with the AMOLED screen technology rather than the Pentile, as it was present on my SGS2, but is generally only visible under certain conditions (background colour/brightness).
Regards.
Is it visible on colors other than grey?
Sure, on blue background too,sometimes on white.(poarws photo with blue background) It depends on brightness.
More visible at white background with high brightnes.
More visible at blue and grey background with lower brightnes.
It does have to do with the Amoled technology, but I doubt it's a defective display. You can try to exchange it to see if it really is defective or not.
I have some vertical and horizontal banding only with lowest brightness at the white background.
With maximum brightness no lines or whatever
AMOLED has a few imperfections here and there, so it's not surprising. But if it's bothering you too much exchange it for another one, it could have less prevalent issues.
Just performed a test using screen test app my screen looks great.
Sent from my Galaxy Nexus using XDA App
How high is brightness with test screen
Mine is fine too but 60 percent and more.But this one issue bother me pernament ( no matter if 30 or 70 percent brightnes)
Tuesday iam going for a new piece, hope that will not be affected worse than mine
Try viewing those shades of grey on your phones, it's usually the most problematic color. Use a low brightness setting (around 25%) at a dim environment.
This exists on all OLED screens. Its the exact same on my Nexus S. It has nothing to do with pentile matrix, but OLED.
Sent from my Galaxy Nexus using XDA App
Yes i had nexus one galaxy s galaxy s II so i can compare,nothing like that before that.
50-60 percent of brightnes
I have the Galaxy Note and it has the same panel as the Galaxy Nexus albeit at 1280x800 instead of the Nexus's 1280x720. (Super AMOLED HD with Pentile sub-pixel arrangement)
My screen is great. The whites are brighter than they were on the Nexus. The Nexus displayed whites with a yellowish tint especially on low brightness. Plus I can't seen any banding on the screen and I have tested it on White, Red, Blue, Green and Grey backgrounds.
Im getting a new Galaxy Nexus in a couple of days. Since this unit is from a later batch I hope that there is no banding on the screen too.
Funny, I have a similar issue to Delarock's on my Galaxy S2, manufacturing date is 19th of October. I'm still thinking whether to replace it or not since since it's only visible on dark'ish grey, I couldn't replicate it on lighter greys, white, or any other color at various brightness settings.
Delarock said:
Yes i had nexus one galaxy s galaxy s II so i can compare,nothing like that before that.
50-60 percent of brightnes
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Click to collapse
the same on lowest brightness...
so I always set up my phone to the hightest brightness
Hard for me to get a good photo but you can see the same problem on my NEXUS S screen. Its just a characteristic of OLED displays in general.
Sent from my Galaxy Nexus using XDA App
Really similar to the screen on my new Galaxy Nexus. I didnt notice the diagonal right away but that is certainly more significant. My screen a rosy hue in the bottom half and especially the lower left.
I'd love to see a similar picture of someone who says that their screen doesn't have it.
(Click for 100% crop)
So are some of these screens defective? Or is it really just the nature of the beast?
How does one tell what manufacturing date their device was made to? Would I be able to go to a store and exchange for a datecode that shows no banding issues?
I am having the same issue ... another thing I notice is weird issues with the camera while in a dark room. If I have my camera on in a low light room, I get this weird "dancing" of black blotches in the really dark areas of that room.
I like all solid black wall paper, I find the fastest easiest way to get it is to turn off the camera flash, put my finger over the lense and take a pic. Worked for every other phone I have but the GNex. I get a weird blotchy image ... now I am on GNex#3 (other 2 I returned for different issues) and I have noticed this camera thing on #1 and now #3. With the first one I assumed this was normal ... but after going from the second one to the third I see a HUGE difference in screens. With phone #2 I was able to do the phone/black wallpaper with no weird distortion. Now the really strange thing is that that same pic taken with the second phone (that displyed pure black on that device) shows up blotchy on device 3.
Hope this makes sense to someone lol cuz reading it back I sound crazy.
I just hope the folks at the Verizon store don't give me a hard time trying to get another one!

Screen Burn?

I got my galaxy nexus this morning and I have to say, this screen is awful. I'm not sure if it's defective or they are all like this. Everything was fine until I turned the brightness down. I loaded google.com up and the white on the page looked like it had colored dots in it. It's not white at all. After looking at it for a while, it appears to be some type of image retention? Do these type of screens get burn in? When I flip to landscape the area where the 3 bottom buttons are is worse in discoloration and I can make out the button images. It's not too bad but this thing was $700 and plus it's only 12 hours old... I don't know if I should return it?
Spray neutrogena sunblock on the screen...make sure its spf 100+!! No more burn! Oh wait!...
Seriously, you may just have to exchange it.
Sent from my Galaxy Nexus using Tapatalk
Other people have reported image retention too. It's 'normal', unfortunately.
I got it to my plan is to just wait a few months/weeks and wait until batches with perfect screens will ship then I will return my phone. So I get hopefully one with perfect screen. Trying to get one with a good screen now looks like playing russian roulette.
Hello,
My screen yelleow tinte
http://forum.xda-developers.com/showthread.php?t=1391509&page=12
You might want to take a look at that thread. It probably is not burn in, but perhaps color tint and banding. (At low brightness, the whites will seem grey and have a sort of linen look to them. Many screens have also red/green discoloration.)
Here are samples about the screen issues:
https://dl.dropbox.com/0/view/pd5u8d...-47-17_435.jpg
http://img710.imageshack.us/img710/3687/gndisplay.jpg
http://aijaa.com/000229287969
Long story short, get it exchanged - however, there is a high likelihood that the new unit will suffer from the same issues.
I exchanged mine and this one doesn't have blue streaks vertical lines or dots.
Sent from my Galaxy Nexus using Tapatalk
If you see vertical streaks in it, exchange it. My first GNex had some very noticeable streaks but my second one is fine. The 'linen' look on light backgrounds when the screen is very dim is going to be on all of them from what I can tell. That seems to be a quality of the SAMOLED screen used on the GNex. If it is uniform, then it's it no big deal and 'normal'. You should not have to put up with the vertical streaks, though.

[Q] Warm vs Cold Phone and horizontal banding

I've had my phone about a week and the screen is fine when I'm inside. But I noticed on the way home from work (I walk from my work, about 10 minutes away) that the more I took my phone out, the more I noticed horizontal banding. It freaked me out a bit (I bought this phone from Swappa), but as I got back in a warm environment, the banding went away. Went back out for a run and it did the same thing.
My question is:
1. Is this normal behavior for AMOLED screens, for this device, or is it a defect?
2. Will this temperature change hurt the phone? I live in Wisconsin and odds are it's going to be cold a lot.
3. Should I get a snuggie for my phone?
Never noticed any banding, perhaps i'm not really looking for it.
Will look out for it when my phone gets back from the service center..
Take mine skiing all the time. No banding.
Sent from my Galaxy Nexus using Tapatalk 2
Mach3.2 said:
Never noticed any banding, perhaps i'm not really looking for it.
Will look out for it when my phone gets back from the service center..
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Click to collapse
Well I've read up a bit on horizontal banding and i know it's common with this phone. But I've never had anyone say it's temp related.
Sent from my Galaxy Nexus using Tapatalk 2
I noticed this as well with my phone. I had horizontal banding all the time, but the banding seemed to be more pronounced when the phone was cold.
I returned it for a screen replacement under warranty and just got it back about a week ago. The banding is now gone and I don't see it when the phone is cold, either. I don't think the banding is normal but, if it is occurring, it can be made more noticeable when the phone gets cold.
Breaking news : the GN screen is crap.*
*there aren't any existing threads about it on XDA, not a single one. /s
When you say banding do you me slightly darker stripes (almost like shadows) or do you mean bright white horizontal stripes where no information can be seen.
I live in the north of Sweden and often subjected my old Galaxy S to -10 to -20°C. I would quite often see white banding or rows of white pixels. These always disappeared whed the phone was taken inside. The phone still works faultlessly today.
For me, the horizontal bands were linear "shadows" of lower screen-brightness alternating with linear areas of normal brightness. There is no loss of information.
After the screen replacement, I would say the screen is as nice as on any phone I've used. My last phone was a Nexus One, and the new screen is comparable in quality to the one on the N1.

[Q] Pink tint on lower half of screen? Normal?

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

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