Database Develop

[Q] Dark spots on the screen when displaying a black image

I bought a Samsung Galaxy Note (N7000) phone about one week ago. I noticed a problem with the screen. The problem is like this:
When I am in a very dark room (and make sure my eyes have adapted to the darkness), and display a completely black image with the phone, the screen is not completely black. This is NOT the problem I want to say. The problem which bothers me is that, inside this gray screen I can notice some really black spots, just like the screen has been spattered by some black ink (but is has not).
Why is this a problem? Because even if the screen cannot be perfectly black when displaying a completely black image, it should still be uniform; but this is not the case!
This problem is similar to the one described in this web page:
http://forum.xda-developers.com/showthread.php?t=1150171
Maybe I should add that this problem never affect its performance in normal conditions. It only shows up when the environment is completely dark and when it display something really black.
So I would like to know whether this problem is caused by a defect of the phone.
A photo is attached. It was taken with a long exposure time. The photo is taken with a small Canon camera, with ISO = 200, and an exposure time of 15 seconds.

This thread has some discussion regarding the issue. I have these marks on my SGS2 screen as well; bit of a nuisance really.
http://forum.xda-developers.com/showthread.php?t=1335423

Why is this a problem? Because even if the screen cannot be perfectly black when displaying a completely black image, it should still be uniform; but this is not the case!
.
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Mine is pitch black as far as i can tell. However, when i run screenfilter, it dims the colors but the background (normally black) becomes a light grey.

ChodTheWacko said:
Mine is pitch black as far as i can tell. However, when i run screenfilter, it dims the colors but the background (normally black) becomes a light grey.
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Thanks for you information!
Did you look at the screen (when displaying a black image) in a very dark room?

fjdu said:
I bought a Samsung Galaxy Note (N7000) phone about one week ago. I noticed a problem with the screen. The problem is like this:
When I am in a very dark room (and make sure my eyes have adapted to the darkness), and display a completely black image with the phone, the screen is not completely black. This is NOT the problem I want to say. The problem which bothers me is that, inside this gray screen I can notice some really black spots, just like the screen has been spattered by some black ink (but is has not).
Why is this a problem? Because even if the screen cannot be perfectly black when displaying a completely black image, it should still be uniform; but this is not the case!
This problem is similar to the one described in this web page:
http://forum.xda-developers.com/showthread.php?t=1150171
Maybe I should add that this problem never affect its performance in normal conditions. It only shows up when the environment is completely dark and when it display something really black.
So I would like to know whether this problem is caused by a defect of the phone.
A photo is attached. It was taken with a long exposure time. The photo is taken with a small Canon camera, with ISO = 200, and an exposure time of 15 seconds.
Click to expand...
Click to collapse
m facing the same problem! there r black spots on the screen n i get red and green patches on the screen when m watching videos in dim light but it dissapears wen the surrounding is bright! is it only me or anyone else facing these problems!
---------- Post added at 07:44 PM ---------- Previous post was at 07:38 PM ----------
even my photos have these patches when taken in the dark! someone plz help!

dabeet satyanarayan said:
m facing the same problem! there r black spots on the screen n i get red and green patches on the screen when m watching videos in dim light but it dissapears wen the surrounding is bright! is it only me or anyone else facing these problems!
---------- Post added at 07:44 PM ---------- Previous post was at 07:38 PM ----------
even my photos have these patches when taken in the dark! someone plz help!
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Click to collapse
All OLEDs can have this issue. I would imagine more have it than not. My old Zune HD did this. My note has it, my Infuse has it. If you are into watching black screens with nothing on them in pitch black rooms, then stay away from OLED screens. Since you really can't see this with normal use, I would say it is no big deal.
Your video issue is something else all together. That is just a boneheaded gamma setting by Samsung. Shades below 4 (with my gamma test image) aren't smoothly ramped down, they are just eliminated entirely! This gives a noticeable step from shadow details to black, which shows compression tiling that you normally wouldn't see..

I believe physical damage causes this problem..because last week when my girlfriend tossed Me my deo can it accidentally hit the screen and since then there's a huge black spot in that area thankfully though it's only visible on a pitch black image ....like the bootscreen
so no issues

This belong in Q&A

My very first Note had blotches visible even in daylight on a gray background. I had it replaced the next day under Samsung early life failure policy (first 30 days). Second phone had blotches visible only on a black background in a dark room. So did 3rd, 4th and 5th! However, the 5th Note had blotches around the edges unlike the other 4 Notes so I decided to keep it. The fact is: ALL Notes 1 have blotches. If you can't see blotches consider yourself blessed. Blotches are the only thing I hate about Note 1.
Sent from my GT-N7000 using xda premium

even though a lot of screens have this, Id send it back if I was you. I think its unacceptable for aproduct this expensive. It shoukd be flawless. So quickly call upon warrantee.
Next time, dont leave the store without doing an instore test, that way you can return it immediately with no questions asked

baz77 said:
even though a lot of screens have this, Id send it back if I was you.....
Next time, dont leave the store without doing an instore test, that way you can return it immediately with no questions asked
Click to expand...
Click to collapse
It's a bit hard to do a "dark room" test in store. After the 5th I gave up my search for a perfect screen. Until Samsung changes their AMOLED manufacturing process and improve QC there won't be "perfect" screens.
Sent from my GT-N7000 using xda premium

The problem is these dark spots won't appear even on the standard *#0*# screen test .
so it's kind of a non issue but what I am worried about it is, will it deteriorate in time and become an issue later on ?
Sent from my GT-N7000 using xda app-developers app

itsrijo said:
The problem is these dark spots won't appear even on the standard *#0*# screen test .
so it's kind of a non issue but what I am worried about it is, will it deteriorate in time and become an issue later on ?
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
It's nothing to worry about

same case
dabeet satyanarayan said:
m facing the same problem! There r black spots on the screen n i get red and green patches on the screen when m watching videos in dim light but it dissapears wen the surrounding is bright! Is it only me or anyone else facing these problems!
---------- post added at 07:44 pm ---------- previous post was at 07:38 pm ----------
even my photos have these patches when taken in the dark! Someone plz help!
Click to expand...
Click to collapse
i got the same problem ..my note 2 is at&t and when i use my phone in a dark room it shows the same black patches ...like if i open camera it does not show a complete back screen but spots over it ..plz help me to resolve it ! Is that a lcd issue ?
---------- Post added at 08:54 PM ---------- Previous post was at 08:47 PM ----------
shafaq said:
i got the same problem ..my note 2 is at&t and when i use my phone in a dark room it shows the same black patches ...like if i open camera it does not show a complete back screen but spots over it ..plz help me to resolve it ! Is that a lcd issue ?
Click to expand...
Click to collapse
oH AND I JUST SAW THE ATTCHEMENT ..MINE ARE EVEN WORSE ! THEY ARE LIKE BOXES STARTING FROM THE EDGES AND SO ON

Help me
Half my screen of my galaxy note 2 is dark and grey
Someone help
I don't know what happened to it and it seems like it might be spreading too
If anyone has a solution please post
Thankyou

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janarthananfit said:
Yesyes this is a quote.
Click to expand...
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It works fine, but please attach a direct APK file, not a textdocument with a link
Here is an attachement for the lazy guys that don't want to waste 2 minutes on Depositfiles.
Just unrar it and copy to your phone. DONE.

Accecier said:
It works fine, but please attach a direct APK file, not a textdocument with a link
---------- Post added at 08:55 PM ---------- Previous post was at 08:33 PM ----------
Here is an attachement for the lazy guys that don't want to waste 2 minutes by Depositfiles.
Click to expand...
Click to collapse
Y to quote the whole OP, it bloates the screen, plz modify it.
Mini has poor multi touch support, so this app will b avg on our phones :/

Camera issue with JB roms

I have been trying out JB roms lately and really them but I have a problem with my camera apps, mainly Camera FV-5 & Camera Pro.
The problem is that they load fine but when looking at the screen the preview of what I am going to take the photo of is only about 2/3 size of the screen and then there is a black border for the rest of the screen, I rely on my camera so I have to be able to see the whole screen.
The roms I have tried are BlackCNA v2.1 & PARANOIDANDROID 2.17 [Utacka]
Any help would be appreciated.
Oh is it possible to have the Galaxy note 2 gallery in these roms?

belveder69 said:
the preview of what I am going to take the photo of is only about 2/3 size of the screen
Click to expand...
Click to collapse
It looks like the previous are borrowed from the stock camera which leaves room for the settings and shutter.
Do you see your pictures correctly in gallery?
Sent from the Great Note
---------- Post added at 05:25 PM ---------- Previous post was at 05:24 PM ----------
not previous, previews.
Sent from the Great Note

Thanks for the reply, I haven't taken any photo's, mmm I must have worded it wrong for lack of a better word, what I mean is the area of the screen you look at when you take a photo

Color saturation & accuracy

If you're colorblind, please disregard this thread. Rate this thread to express how you deem the color saturation and accuracy of the HTC 10's display. A higher rating indicates that you think that color accuracy is very high and saturation is excellent.
Then, drop a comment if you have anything to add!

Not very good at all (regression)
Sent from HTC 10

th3 said:
Not very good at all (regression)
Sent from HTC 10
Click to expand...
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He said colorblind people disregard.
Color saturation & accuracy are excellent here.

schmeggy929 said:
He said colorblind people disregard.
Color saturation & accuracy are excellent here.
Click to expand...
Click to collapse
How do you know if I'm colorblind?
Sent from HTC 10

th3 said:
How do you know if I'm colorblind?
Sent from HTC 10
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Click to collapse
Because you stated not good at all, The HTC 10 camera is by far the best yet.
---------- Post added at 10:47 AM ---------- Previous post was at 10:46 AM ----------
th3 said:
How do you know if I'm colorblind?
Sent from HTC 10
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Because you stated not good at all.

schmeggy929 said:
Because you stated not good at all, The HTC 10 camera is by far the best yet.
---------- Post added at 10:47 AM ---------- Previous post was at 10:46 AM ----------
Because you stated not good at all.
Click to expand...
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This isn't about the camera ?
LTR.
Sent from HTC 10

th3 said:
This isn't about the camera
LTR.
Sent from HTC 10
Click to expand...
Click to collapse
Haha, my bad, still the display is better than all previous models.

for me, my sharp panel is very bad, reddish, much worse than the m9. wating for new calibration profiles or a kernel with support for color balance mod

I have a tianma panel and it is very good. Colors are a bit oversaturated though, even in sRGB mode. I might try a cooler setting though. Currently I have it one notch towards cool.
Overall I am loving the display.
Sent from my HTC 10 using XDA Labs

do Tianma displays still have pink shifting?

For enthusiasts there is a color control available: http://forum.xda-developers.com/showpost.php?p=67779784&postcount=309

I have a Sharp panel and is awful. No matter what setting(sRGB/Vivid) the screen has a red accent.

V1TRU said:
do Tianma displays still have pink shifting?
Click to expand...
Click to collapse
yes, just got the HTC 10 yesterday, when compare to my Neux s5 and LG G3 the HTC 10 is sub par.

I see a visible red/tint noticeable on whiter backgrounds. I contacted customer care they said the issue was known and they are still investigating and they could not do anything and I have to live with the device
---------- Post added at 03:44 PM ---------- Previous post was at 03:42 PM ----------
I don't know how HTC can't even source a good LCD display despite charging 600$ and being OEM manufactures for 15 plus years
---------- Post added at 03:45 PM ---------- Previous post was at 03:44 PM ----------
DummyPLUG said:
yes, just got the HTC 10 yesterday, when compare to my Neux s5 and LG G3 the HTC 10 is sub par.
Click to expand...
Click to collapse
I have Tianma display on my 10. YES it has pink screen.

Mines fine
Slightly pink but nothing compared to the horrihle tints on AMOLED

Did any one got a new HTC 10 recently and see a pink/red hue?

Yeah I've got a new one. Mine does have a slight pink hue. But doesn't bother me. And too be honest next to my 6p AMOLED screen it looks way better.

Does ur new 10 has Tianma panel?
---------- Post added at 10:46 PM ---------- Previous post was at 10:45 PM ----------
Reuben_skelz92 said:
Yeah I've got a new one. Mine does have a slight pink hue. But doesn't bother me. And too be honest next to my 6p AMOLED screen it looks way better.
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Does ur new 10 has Tianma panel?

rajeshkapa said:
Does ur new 10 has Tianma panel?
---------- Post added at 10:46 PM ---------- Previous post was at 10:45 PM ----------
Does ur new 10 has Tianma panel?
Click to expand...
Click to collapse
How do I find out?

Reuben_skelz92 said:
How do I find out?
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Click to collapse
https://play.google.com/store/apps/details?id=flar2.devcheck&hl=en
Install the app and open it check under hardware section

Screen burn-in

I have strange screen burn-in on my display. When I go from for example messenger to this XDA app I can still see some icons from messenger and they are some kind of reddish. Do you guys also have this problem or it is just my Nokia 8?

777aciek said:
I have strange screen burn-in on my display. When I go from for example messenger to this XDA app I can still see some icons from messenger and they are some kind of reddish. Do you guys also have this problem or it is just my Nokia 8?
Click to expand...
Click to collapse
download an app from playstore called noise 2 and run it overnight , burn-in will go away because Nokia phone has a IPS LCD display if the phone had Amoled burn-in will stay forever , that's why I prefer IPS display over the stupid Amoled

I can't find the app called nosie 2 ,is it spells right? thank you
I can't find the app called nosie 2 in Google play store ,is it spells right? thank you
---------- Post added at 11:12 AM ---------- Previous post was at 11:08 AM ----------
machhho said:
download an app from playstore called noise 2 and run it overnight , burn-in will go away because Nokia phone has a IPS LCD display if the phone had Amoled burn-in will stay forever , that's why I prefer IPS display over the stupid Amoled
Click to expand...
Click to collapse
I can't find the app called nosie 2 in google play store,is it spells right? thank you very much

It's image retention, which is a problem with some LCDs. I only get it quite mildly, but I've seen worse examples. You can't stop it from happening, but it should go away after a little while.
It seems LG displays like the one on our Nokia are fairly susceptible to this - it happens on the LG V20, and some Motorola phones with LG displays.

jayvsdh said:
I can't find the app called nosie 2 in Google play store ,is it spells right? thank you
---------- Post added at 11:12 AM ---------- Previous post was at 11:08 AM ----------
I can't find the app called nosie 2 in google play store,is it spells right? thank you very much
Click to expand...
Click to collapse
https://apk-dl.com/pure-noise-2-screen-burn-fixer
or
https://a2zapk.com/apkkdl/178642.html