Z2 Screen has Bright Spots - Xperia Z2 Q&A, Help & Troubleshooting

Not sure what is wrong with my Z2, but there seems to be some random bright spots on the screen (most notable with white or light grey background, eg in messages, etc).. The cluster is about 2mm in diameter and in the lower left of the screen.
Anyone else experiencing random bright spots (not dead/stuck pixels) on screen? Is this normal?

cheetah2k said:
Not sure what is wrong with my Z2, but there seems to be some random bright spots on the screen (most notable with white or light grey background, eg in messages, etc).. The cluster is about 2mm in diameter and in the lower left of the screen.
Anyone else experiencing random bright spots (not dead/stuck pixels) on screen? Is this normal?
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Picture?
Perhaps its dot pattern on the panel that you saw.

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This is an example of what mine looks like

cheetah2k said:
This is an example of what mine looks like
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Never happens. you should get the exchange

Friend of mine has same problem, i think its due to overheating because he has the spots at exactly same place and its where the phone heats up most.

cheetah2k said:
Not sure what is wrong with my Z2, but there seems to be some random bright spots on the screen (most notable with white or light grey background, eg in messages, etc).. The cluster is about 2mm in diameter and in the lower left of the screen.
Anyone else experiencing random bright spots (not dead/stuck pixels) on screen? Is this normal?
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Have you played carelessly with your thermal management ?

nreuge said:
Have you played carelessly with your thermal management ?
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This is what I had

Yellow tint isusse. You should go to sony service center to replace bad display.
Google Xperia S Yellow tint to learn more.

Related

[Q] anyone have slight horizontal banding on their optimus?

I can't see the banding all the time but when I do it's very annoying. I'm going to try and post some pics today. Is it normal or can I get it fixed?
No one at all has this problem or has heard of it?
what do you mean by banding? describe it properly
in my case specifically i can see faint gray horizontal lines going across the lcd on my phone about every quarter inch. it is especially noticeable on a white screen. i emailed the ebay seller and they stated that it was normal and i would not be able to return or exchange the phone since it was sold as new. i emailed LG about it and they said it would cost anywhere from $40-$100 if it was actually a flaw. like i said in the first post, i'm going to try and get some pictures up soon (hopefully in a couple hours after i get some sleep) to graphically show what i'm talking about.
DarkKnight62, if it helps in any way: I have observed this on my screen too. The faint gray lines made me believe text lines were burned in the LCD screen, but that would have been pretty much impossible, since I don't read that much on my phone. I can only see this effect when I use the screen as a flashlight - white background and 100% luminosity and it doesn't bother me at all.
masteryx said:
DarkKnight62, if it helps in any way: I have observed this on my screen too. The faint gray lines made me believe text lines were burned in the LCD screen, but that would have been pretty much impossible, since I don't read that much on my phone. I can only see this effect when I use the screen as a flashlight - white background and 100% luminosity and it doesn't bother me at all.
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even I read a lot on my phone but I keep the brightness lower than the lowest default. so I dont have this problem.
I think, It's due to surface dithering. See our phone is not 16m colors its 256k so the colors that are missing are to calculated and displayed and that's why the horizontal band if the we set no surface dithering (custom roms mik) the banding just vanishes but the quality of display is reduced. All the linear gradient colors are no more gradient.
Sent from my LG-P500 using XDA Premium App
I do have this gray lines horizontally and vertically if you see the phone far and carefully only in white background... when its near, the lines just dissapears to my eyes, (like if they get used to the display)
"gray horizontal lines going across the lcd on my phone about every quarter inch"
I don't think he is talking abouth the lines between pixels.
can you post a picture so we can understand what are you talking about?
@DarkKnight62 I had a same problem. If you are using francos kernel (and/or roms that have it integrated) it's more visible - very noticeable on wallpapers with smooth gradients. Try switching to stock or mik_os CM7 mod 6.5.4 stable (which is great)...
@soberspine This is example:
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try enabling hardware acceleration??

[Problem] - Spots on a black background at night!!

Hello everyone,
I noticed that at night when I have a black background i can see dark spots that make you notice the color is not uniform.
This defect occurs when all these conditions are verified:
- Completely dark room and eyes accustomed to the darkness for a few minutes
- Completely black screen (like the one in the test screen by typing *#0*#)
- Minimum brightness (but can be seen even at maximum brightness).
In practice, you see lots of little dots of different sizes and shapes, always black as the background, but not the rest of the uniform color (as if they were the signs of glue that is below).
During the day with light are virtually invisible, at night using it would not normally notice, but as soon as the screen remains black for a few seconds (for example when loading a video from youtube), here they are appearing and are really annoying.
I got my phone last week, I would still be time to ask to replace it, but I'm afraid it's a problem of all devices and maybe even put the risk of receiving a worse one (with dead pixels, circles on the screen, etc.).
Someone else has ever noticed these spots? If you have not noticed could you do a test under the conditions that I outlined above?
To understand whether it is a problem of all (in which case I would avoid to let me change) or just mine.
I still have 2 days to apply for replacement, thanks!!
P.S: sorry for my bad english
Same on mine, and a lot of them... not really visible that much only with blank black screen... and sincerely when do you use your phone with nothing on the display ?
Im pretty sure those are manufacturing imperfections in the amoled production process and we cant do anything about it, im pretty sure all phones have it to some extent.
Same here... I think that its bet to just get used to it, that what i did anyway..
Sent from my GT-I9100 using XDA App
Yes, I have the same problem too! Just got the white version of this phone. I also noticed that mine looks like there's a small fingerprint smudge underneath the glass. These don't bother me, but what really bugs me is this faint faded line that runs up and down the screen. It looks like burn-in or something. I can't see it unless I'm playing a certain video with gray backgrounds. Should I swap it out or keep it? The one I have now has no dead pixels, but I'm afraid the new one would...
Hmmm so we all have this problem, any other witness?
Yeah same thing i was thinking im only one
/problem with all oled screens
same with mine..its a flaw by samsung. unequal distribution of glue to stick the glass and capacitive layer
Same here ...
At first I was a bit worried because I also have an LG Optimus SOL E730 with amoled, and it does not suffer from this problem.
So, the only thing that comes to my mind, is that samsung did a crappy job on this phone.
One more thing: When the screen is black, the LG appears as if it's turned off, the Samsung, on the other hand, is a little lit.
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Anything wrong with the display, or is this normal in SAMOLED+?

Please refer to the picture below. Do you spot any abnormalities with my SAMOLED+ display? The yellow tint is gone after flashing to 2.3.5, but the area in the lower left is still showing a lighter tone--like a right triangle; so does a small area on the upper left. Also, the brightness (as I've noticed in other S2's) is not evenly distributed across the screen. These problems are hardly visible in normal use, but it becomes visible in grey backgrounds, and notifications area, and lowest brightness in web browser. Please let me know, thanks.
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so, what do you all think? Please let me know thank you.
Mine looks exactly like that: triangle in bottom left, splotch in top right, and whole left seems a little dimmer than the rest. I haven't installed any updates & bought mine in South Africa; where did you get yours? I was honestly under the impression that AMOLED was the technology to go for, but now I'm not so sure anymore.
At first I was going to ignore the lighting defects and the pink tint in the center of camera images as there aren't that severe, but now I've found my phone's earpiece probably has a problem too. It makes a crackly noise during calls that sounds like something's loose in the speaker, so I reckon it's time to send this one back...
Update: I got mine replaced today due to the speaker problem, and the new one has neither the triangle nor the splotch. It is still darker down the left side of the screen though, maybe even a bit more so than on the old one...
I had exactly the same issues (well, not exactly as mine were worse). I had to replace it twice. Now I have one without this issues, no yellowish border and little to no banding.
The guys at the service told me that if there is any problem now, I can get a new phone right away, but considering how many people have display problems, I would rather repair this one. It's display is suspiciously perfect...
Sent from my GT-I9100 using XDA App

[Q] Black Fragmentation color on display - is it just mine?

So I am seeing some color issues with my SII
Not sure if it's just the way it is (because I am coming from the LG G2x which had the most amazing display you can ever imagine), or is it just my phone.
The funny thing is that even though I am attaching a screnshot, obviously YOU will not be able to see the issue (since of course, the pic itself is fine, and it is the display that makes it wavey...)
I am not even sure I am explaining myself the right way.
Wavy colorts, uneaven, almost cartoonish-like, smeary.
It is most apparent with darker shades
(U can't see it here)
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Samsung's Super AMOLED Plus displays exaggerate colors and shades, and that is it's key feature. Not sure about your phone, but if you think something's wrong with your phone, go check with your service provider.
nicholaschum said:
Samsung's Super AMOLED Plus displays exaggerate colors and shades, and that is it's key feature. Not sure about your phone, but if you think something's wrong with your phone, go check with your service provider.
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Thank you!!!
Found some info here, i wonder if mine is one of these....
http://pocketnow.com/android/samsung-galaxy-s-ii-screen-problems-trouble-in-paradise
I hope more members will have something to say, perhaps they have experienced this as well.
I was also thinking whether this can (hopefully) be a kernel issue or color calibration issue? I know that some kernels has effect on the colors, but I am out of my field here and completely wrong
The weird thing is that light colors are perfect. When GRAY or BLACK, it just looks bad.
benyben123 said:
The weird thing is that light colors are perfect. When GRAY or BLACK, it just looks bad.
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I've got something similar to that.
It's not noticeable in a well lit environment but if I'm in a dark room and have a black screen on my sgs2, some blotches seem darker than the rest of the screen.
I wouldn't be too bothered about this if it was just one or two but there's one large one and a bunch of smaller ones scattered around the screen.
Thanks!
I wish I could upload a photo to show it, but (funny enough), my only camera is my phone's camera (a single student - what r u gonna do?!)
This is especially noticeable when I take a picture or when I use the Music app (pictured above), where there is huge smears of color going from the dark to the lighter.
I hate to even imagine it, but I think I will have to depart from my SII if this is something that isn't fixable. If no one else experience this, I will get a new SII
(i don't know anyone that has the SII so I have no one to compare it to)
Managed to take some pics
Hope U can see it:
Look at the bottom discoloration:
All menus with shades of grey and black present this issue (kernel problem maybe?)
NOTICE POWER WIDGET!!!!

Black Spots on dark screen

Hi,
is it common or I have to request for repair?
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Thank you in advance.
Yes is it that common.... I also have black spots on my gs3... Give a search about this and you will see there are more with this problem
Sent from my GT-I9300 using xda premium
dezeubby said:
Yes is it that common.... I also have black spots on my gs3... Give a search about this and you will see there are more with this problem
Sent from my GT-I9300 using xda premium
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Mine looks the same. I would say it's normal and no point in banging your head about it because it is only visible in very dark scenario on only black screen. Who uses there phone to look at black color in dark room? Nobody normal.
It's the way AMOLED screens work.
I must say, compared to how the screen of my I9100 looked after a few months use the I9300 seems a bit better with this kind of problem.
The screen of the I9100 looked like someone had poured black ink all over the screen, even on darker backgrounds, not just black.
A few dots here and there on the I9300 doesn't bother me.
The only time I see them are when I'm looking att NSFW content in bed at night and the wife rolls over att looks att the screen and i have too quickly change app
My old GT-I9100 which my wife uses bow has the same issue and so does my current phone.
I believe thos is normal, since all phones I've seen with amoled screen have the same issue.
And in my case it doesn't bother me, since I don't watch movies with lots of dark scenes in night.
Sent from my GT-I9300
Yes it's common and it's one of the several downsides of the Amoled screen. This phone would be close to perfect if it had the screen from the one x.
Sent from my GT-I9300 using Tapatalk 2
Have the same on my phone.
Yes i have the same problem on my s3.
but here's what i don't get, why is the screen not black all over. shouldn't all the pixels be turned off when displaying a black screen?
And it's certainly not an amoled issue, because my sgs1 does not have this problem. at least it is not visible because when the sgs1 displays a black screen the screen is much more black then the s3 or the s2 I had before.
Is the new amoled screens just cheaper produced?
just shot a photo (of bad quality) to prove my point:
(Both the s1 and the s3 displays the same black picture with screen brightness = 100% And the s1 is actually so dark that it is hard to see it.
wierd
i have the same problem too.. but does not have any problem with it..

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