Database Users

Possible Screen Issue. Need you guys help.

So I recently got a Galaxy Note and tried some wallpaper i used on my galaxy nexus and there is strange distortion in the image where the colors transitions. I'm interested to see if this is the Galaxy Note or just my Galaxy Note. Can you guys place the image on your devices and see if it shows the same distortion.
I attached the image to this post so you can put a clean image on your device.
Here is where the distortion is but of course you won't see it in the image unless you are looking at it on your note.
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i see wht u mean ... i tried it...but i think it happens becuz the pixels turns off under the colours becuz it's black ,, u cnt see it on lcd i guess if u tried
another possible issue it's becuz every pixel has 2 sub pixels instead of two so..it cant move to another colurs

I considered that but the Galaxy Nexus has pentile display as well that is Super Amoled. I would expect to see the same thing on that device but it might be that the pixels are a bit smaller on the GN. I honestly don't know but it concerned me a bit.

I cannot see any difference between the image on my phone and on my laptop.
I have tried with Screen Adjuster at 75% and -40 contrast, and without.

Interesting.. Do you have a white note or a blk/blue version?

This is a common issue in the Q/A section. Look for the a thread about video playback issues.
In short, the Note does a very poor job at rendering black levels. At some point, it completely drops off and instead of rendering a low level black, you get a completely turned off pixel. This creates the "black pixelated" effect in the wallpaper that you see. You can see this same effect if you took the default ICS stock wallpaper. You'll see it in the bottom left side of the wallpaper when viewed from a note.
Supercurio is working on a fix. People are also hoping that ICS will provide some relief to this issue so sit tight.
It is not a hardware defect, rest assured.
This effect will also occur in videos with dark scenes. One temporary remedy for now is to use high-resolution wallpapers and high-resolution videos. If you can, try using a 2500x1600 wallpaper or something higher. This reduces the black clipping/pixelation a little but does not eliminate it. Using a brighter themed wallpaper would help as well.
If you're using a dark wallpaper thinking that it'll save you power, don't bother. It is not significant power savings due to the fact that you'll swipe through your home screen and your brightly colored icons would have activated the parts of the wallpaper that were dark anyhow.
Cheers.

PoisonWolf said:
This is a common issue in the Q/A section. Look for the a thread about video playback issues.
In short, the Note does a very poor job at rendering black levels. At some point, it completely drops off and instead of rendering a low level black, you get a completely turned off pixel. This creates the "black pixelated" effect in the wallpaper that you see. You can see this same effect if you took the default ICS stock wallpaper. You'll see it in the bottom left side of the wallpaper when viewed from a note.
Supercurio is working on a fix. People are also hoping that ICS will provide some relief to this issue so sit tight.
It is not a hardware defect, rest assured.
This effect will also occur in videos with dark scenes. One temporary remedy for now is to use high-resolution wallpapers and high-resolution videos. If you can, try using a 2500x1600 wallpaper or something higher. This reduces the black clipping/pixelation a little but does not eliminate it. Using a brighter themed wallpaper would help as well.
If you're using a dark wallpaper thinking that it'll save you power, don't bother. It is not significant power savings due to the fact that you'll swipe through your home screen and your brightly colored icons would have activated the parts of the wallpaper that were dark anyhow.
Cheers.
Click to expand...
Click to collapse
ahhh haa.. Thanks for that information. I have yet to see it in a video or paid close enough attention to catch it. I'm not too worried about wallpaper but when i saw that i was like hmmmm what is this about.
Thanks for that info. That answers all my questions.

This is the black crush issue which is discussed on the video issue, it also happens with images/games and basically anything on the screen.

Same issue for me

absolutely no pixelation on my note.
smooth transition to black

garytube said:
absolutely no pixelation on my note.
smooth transition to black
Click to expand...
Click to collapse
Set your brightness to 0 and look at it in a dark room.

PoisonWolf said:
Set your brightness to 0 and look at it in a dark room.
Click to expand...
Click to collapse
I'm aware of the issues, but there is no pixelation on my note. not with this particular picture. sorry
Sent from my GT-N7000 using XDA App

Its interesting... After i read the post about the pixels being turned off the issue disappeared but I did lower the brightness and it did come back. Its apparently not an absolute under every circumstance but its definitely an issue. I'm less worried about it now though.
I gotta wait till ICS to make my final decision on whether to keep the note or to go back to the nexus

Blotches on an all black screen? Test yours here

Can you guys with cameras that have manual control test something for me?
Following on from a post by someone else about weird blotches on an all black image displayed on the screen, I checked mine today in pitch darkness and noticed a faint 2 inch or so of blackness on one edge of the screen along with smaller blotches. It doesn't appear to be as visible as the other poster's though but I exaggerated in in the photo so it's easier to see and settings posted below for people to check as well.
This is only visible on an all black screen. This does not exist on any of the S2's I've owned. I'll check my dad's S3 tonight when I go see him in the same way but the way to photograph it to keep the results consistent are as follows:
Stick camera and phone in a cupboard and...
Phone screen brightness: 50%
Camera ISO: 200
Camera Shutter: 15 seconds
Camera Aperture: f/4.5
Remember to pre-focus and use the 10sec timer to avoid shake
Those settings will over exaggerate the effect as shown in my photo below but it makes it easier for everyone to see as you do have to focus your eyes in reality and it's not immediately obvious unless you're in pitch darkness and looking at an all black screen.
I don't know how I feel about this though but if it's visible using the above camera settings for lots of people then I'll leave it as is.
Again, it's only visible on an all black screen so make sure your image that you load is all black and not grey or something Make sure screen timeout is set to at least a minute to avoid the screen going off!
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Thanks!

I used this free app to notice my blotches. It worked great for me. Your method has alot of steps in my opinion.
If I have assisted you, please press Thanks button.

What free app? It's a black image with screen timeout extended. The rest is your camera settings to be able to fairly photograph the screen for everyone to compare, an app can't do that

ronj1986 said:
I used this free app to notice my blotches. It worked great for me. Your method has alot of steps in my opinion.
If I have assisted you, please press Thanks button.
Click to expand...
Click to collapse
Which free app? What exactly did you do in order to notice them?

Did you see these threads Robbie?
http://forum.xda-developers.com/showthread.php?t=1700350
http://forum.xda-developers.com/showthread.php?t=1683483
http://forum.xda-developers.com/showthread.php?t=1686633

I didn't see those nope! Thanks for the links. Seems strange though as the white S3 belonging to my dad has none of the blotches, neither does a pebble blue on another forum. My 2 S2 handsets had no issues either.
Oh well!

My first phone: (F/4, ISO 800, 20sec)
Second phone: (F/4, ISO 800, 30sec)
The guy at the store (**** Smith in Australia) was unable to reproduce the issue in-store, so swapped the phone out and said I'd have to go to samsung if I reported the same issue again. The 2nd phone still has the issue, but as you can see, nowhere near as bad... still... not very good is it.
My 2 year SGS1 had about 4 spots - never noticed any issue. The first SGS3 was definitely noticeable just scrolling through system menus at night.

That's rather bad^^ I've emailed mobiflefun with picture so let's see what they say.

Suggest you up your exposure (duration and/or ISO) to make it a bit more noticeable. Looks like you've got a fair amount of guff in the top-left corner.
:/ dodgy manufacturing.

I don't have an SGSIII yet, but I noticed pretty much this same thing on my Galaxy Note. One night I was viewing an image with an all black screen and it had these weird blotches on the screen. I had never noticed them before.

Actually mine does has it as well but I can't seem to see it under normal conditions

Northern-Loop said:
Actually mine does has it as well but I can't seem to see it under normal conditions
Click to expand...
Click to collapse
This is AMOLED. My PS Vita has same thing. Nothing you can do about it.
Sent from my HTC One X using Tapatalk 2

I have it too. Looks like a crack from the inside out on the bottom left corner.
I can see it in Settings/led notification screen at the bottom at night with screen brightness low.
Sent from my GT-I9300 using xda premium

mobilehavoc said:
This is AMOLED. My PS Vita has same thing. Nothing you can do about it.
Sent from my HTC One X using Tapatalk 2
Click to expand...
Click to collapse
My galaxy nexus doesn't have this so it's not all of them.

I saw around 10 to 15 blotches on my screen,not at all noticable in everyday use only when i looked very closely i saw them scattered around the middle.As its my first amoled phone,i want to know is it harmful for the screen?Shd i ask for replacement?Though i dont have any pink spots or tints watsoever.
Sent from my s3

Aridon said:
My galaxy nexus doesn't have this so it's not all of them.
Click to expand...
Click to collapse
My 4 GNexus did.

Wow this looks like a widespread issue. Samsung needs to know about this

I assume samsung knew even before shipping the units.

Northern-Loop said:
Actually mine does has it as well but I can't seem to see it under normal conditions
Click to expand...
Click to collapse
This "issue" is known since the SGS1. Is the leakege from the AMOLED display. One thing to consider i only have a line about half a CM in the same place where you have the circle mark. Maybe a manufacture failure?

quicker way to test.
1 - dark room
2 set auto brightness off and screen to lowest brightness.
go to phone and dial *#0*#
click vibrate test which will display black screen.
and then check....
p.s been through this in other threads here but mky local telco had 26 with this issue went to another telco and got a blue one today - and no issue whatsoever...

Ink spots in S4 ?

A friend of mine used today a S4 and says it has some Ink spots.
Anyone else have Ink Spots?
.

You mean like these on the SGS3? I'd be surprised if the SGS4 didn't have them. The N2 did. My N2 may or may not have them because I've never looked at its display on a solid grey background with brightness turned down to zero in a dimly lit room as I don't typically use my phone on a solid grey background at zero brightness in a dimly lit room. There are always multi-page threads in every Galaxy with a SAMOLED display's forum talking about the "ink marks." Yet other then in the situation I described its never affected anyone in everyday use. People that this is going to freak out shouldn't buy a SAMOLED display.
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BarryH_GEG said:
I don't typically use my phone on a solid grey background at zero brightness in a dimly lit room.
Click to expand...
Click to collapse
But..... that's .00000000000000000000000009% of my typical usage. Why Samsung!?! Why!?!
Sent from my LG-E970 using Tapatalk 2

What Barry said. Those blotches are pretty much standard. If you go "looking" for things, you could see backlight lines on perfectly white backgrounds on LCD too if you're REALLY looking for it. The thing is none of these are even nearly noticeable on daily usage. And neither do they interfere with your usage tbh.
That said, if you're buying the phone to view an entirely black image in a pitch dark room with low brightness, then avoid any AMOLED devices

GS4 has greatly reduced DC Bias. Much better contrast than the GS3 and Galaxy Nexus.

I remember having them on my old SGS3. Really annoyed me so I feel your pain.

It's called "mura" and is present on every Samsung device I have owned (GS2, Note, GS3, Note 2)

KillaHurtz said:
It's called "mura" and is present on every Samsung device I have owned (GS2, Note, GS3, Note 2)
Click to expand...
Click to collapse
Yep, every single SAMOLED device, Samsung or not, has it AFAIK. Degrees might vary, but it's there.
http://forum.xda-developers.com/showthread.php?t=1365032
There are some members saying that apparently applying heat reduces the effect, not even gonna try it though. It is not that noticeable on my Note 2 even on low brightness/pitch black screen on pitch black room. S II users were the ones who had real torrid time with blotches.

tuxonhtc said:
Yep, every single SAMOLED device, Samsung or not, has it AFAIK. Degrees might vary, but it's there.
http://forum.xda-developers.com/showthread.php?t=1365032
There are some members saying that apparently applying heat reduces the effect, not even gonna try it though. It is not that noticeable on my Note 2 even on low brightness/pitch black screen on pitch black room. S II users were the ones who had real torrid time with blotches.
Click to expand...
Click to collapse
Yeah, definitely don't try this. Can't remember where now but someone had this complaint about their Note II and went and used a heat gun on it. Suffice to say that "tiny annoyance" turned into a "I've got to call and get a replacement and this is going to be an awkward conversation". No idea if he got it replaced under warranty or not.

I didn't know.
Now i'm well informed, and will buy my S4 on May. :laugh:

I've had that on my SGS2, the screen was gorgeous so no worry.

I don't think even there are some black spots, anybody can recognize them
The black on S4 is tooooooooooooo black, much much much deeper black than Note 2
I can still see the luminance on Note 2 in dark room, not S4

pack21 said:
A friend of mine used today a S4 and says it has some Ink spots.
Anyone else have Ink Spots?
.
Click to expand...
Click to collapse
it's normal for OLED displays, even the ps vita has it.

[Q] Black level

Searched google and couldn't find user input on the black level. According to that early test by a Chinese site they found black level to be extremely good. Here's the image
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Now as the phones reaching users can anyone confirm in pitch black the amoled output? To me that's the most impressive improvement dating back to when amoled first went HD on the galaxy nexus and lost that level of output.

Yes, it is totally black. Way better than S3 and Note 2.

The blacks are the best I've ever seen.
The pixels are completely off, as opposed to previous amoled screens where there was still a light glow.

Wanted to give this Q too I had previously SGS2 and SGS3 is it even better than SGS2 display in the case of black displaying? I was very satisfied with SGS2 blacks... THX

kultus said:
Wanted to give this Q too I had previously SGS2 and SGS3 is it even better than SGS2 display in the case of black displaying? I was very satisfied with SGS2 blacks... THX
Click to expand...
Click to collapse
It's much better., Infact it''s impossible to get better blacks as the pixels are completely off.
I was always disappointed with previous phones as in a dark room once your eyes focused the blacks would look light grey and you could see blotches and streaks.
On the s4 you see nothing at all.
If you switch your phone on in the dark all you see is the samsung logo on the screen, nothing else.

perfect THX for response I hope that will have zero stuck/dead pixels

That's amazing. It's pretty poor form that all reviews as far as I'm aware have stated the previous amoleds with that slight glow as infinite black.
Anyway the S4 finally has something I'm really jealous of now. Another question similarly relating, does the brightness go lower than the S3?
?????? Galaxy S3 ??????

I think something is wrong with mine. I have the Galaxy S3 and I would say it's a really dark gray, not quite black. But on the S4, I'd say it has a reddish tint to it when I have it all black in a dark room. I may try and take a picture of it tonight.

jasbur17 said:
I think something is wrong with mine. I have the Galaxy S3 and I would say it's a really dark gray, not quite black. But on the S4, I'd say it has a reddish tint to it when I have it all black in a dark room. I may try and take a picture of it tonight.
Click to expand...
Click to collapse
I think its every device or atleast very common, but most people havent notice it (atleast not yet) . Ive come to realize its software related so im not freaking out yet. Just posted this in the ATT forums: http://forum.xda-developers.com/showpost.php?p=40841213&postcount=104

It is honestly that black that when I was waiting on a video to buffer in my pitch black room that it looked like the blue circle was floating!! literaly no light on screen apart from the blue circle. It actually looks really cool lol

Infy_AsiX said:
That's amazing. It's pretty poor form that all reviews as far as I'm aware have stated the previous amoleds with that slight glow as infinite black.
Anyway the S4 finally has something I'm really jealous of now. Another question similarly relating, does the brightness go lower than the S3?
?????? Galaxy S3 ??????
Click to expand...
Click to collapse
It is brighter than S3. :good:

It is perfectly black unless you suffer from the bug I posted about here: http://forum.xda-developers.com/showthread.php?t=2256651 .

its pitch black, i tried finding some ink spots/ blotches and black level last night but failed miserably

suadion said:
It is perfectly black unless you suffer from the bug I posted about here: http://forum.xda-developers.com/showthread.php?t=2256651 .
Click to expand...
Click to collapse
ghosting problem I'm reading on xda sounds bad too
?????? Galaxy S3 ??????

There is a comparison between S3 and S4 black/grey scale in this video, FFW to 17:10 (or watch the whole unboxing and comparison to HTC One video if you want).
You may have seen this by now, but if not it might answer some of your questions.

Yellow tint issue on S4's screen

I have this annoying yellow tint on my S4's screen, but disappears when the phone is tilted over 45 degrees. Is this faulty ? Shall I return it ? Or is there a way I can fix the gamma through an app without rooting the phone ?
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Mine doesn't look like that, sorry. But I have lag. ):

Is it just in Chrome?
Try Chrome Settings ---> Developer Tools ---> Uncheck 'Enable Tilt Scrolling'

@raqball nope this is found everywhere, even instagram and facebook.

Ah, no clue then sorry..

@raqball can you do a quick check with yours, similar to the one I did and let me know what you get ?

Go to settings display screenmode and use something else other than adapt display. Im currently using dynamic and my tint is gone.
ATT S4 Rooted. Beastin.
4.2.2

I had it on standard all this time (including screenshot) .. Putting it on dynamic gives the same result :

Damn I was hoping it was that because it fixed it for me. Maybe a hardware issue?
ATT S4 Rooted. Beastin.
4.2.2

@stevehkim I'm not sure tbh .. thanks for the suggestion though. It's quite annoying after I realised that it exists ... Didn't bother me before I noticed it :\

I found an app called Screen Adjuster but its not really efficient.

I had this with my S3 and got used to it. I was told in those forums that this is just how these AMOLED screens are made.

My display is perfectly white though... Side by side comparisons between the Note II, Microsoft Surface RT (perfect white display), and a Sony HDTV. My S4 beats or meets them all.
Sent from my Galaxy S4

Bjray said:
My display is perfectly white though... Side by side comparisons between the Note II, Microsoft Surface RT (perfect white display), and a Sony HDTV. My S4 beats or meets them all.
Sent from my Galaxy S4
Click to expand...
Click to collapse
Can you post a picture comparing your screen to a laptop's screen ? I just want to see how different it looks. Also, do you suggest I return it to the store and get another one ?

geoldr said:
I had this with my S3 and got used to it. I was told in those forums that this is just how these AMOLED screens are made.
Click to expand...
Click to collapse
It didn't bother you ?

I would return it rather than regretting it later. It defiantly doesn't look right.

ZaZu90 said:
Can you post a picture comparing your screen to a laptop's screen ? I just want to see how different it looks. Also, do you suggest I return it to the store and get another one ?
Click to expand...
Click to collapse
Acer 24" LCD Monitor vs S4
I'll do one of my Surface or TV later.
I made a Pure White image to use for testing on the S4, use it instead of Chrome which uses a grey color in it's UI and for some reason the S4 screen brightness dims on Chrome automatically (and you can't change it). Download it if you want to do comparisons again.
Link: https://docs.google.com/file/d/0B0r4KgQ9UmZjNEJTUV9aMjZURUE/edit?usp=sharing

Bjray said:
Acer 24" LCD Monitor vs S4
I'll do one of my Surface or TV later.
I made a Pure White image to use for testing on the S4, use it instead of Chrome which uses a grey color in it's UI and for some reason the S4 screen brightness dims on Chrome automatically (and you can't change it). Download it if you want to do comparisons again.
Link: https://docs.google.com/file/d/0B0r4KgQ9UmZjNEJTUV9aMjZURUE/edit?usp=sharing
Click to expand...
Click to collapse
Thanks for doing this, do you notice any yellowish tint or is yours bright white ? ...Yeah I tried a white BG not in chrome and this is what I got :
It's pretty annoying the more I realise it tbh ...

Anyone else having this issue ?

ZaZu90 said:
Anyone else having this issue ?
Click to expand...
Click to collapse
No, but just exchange it out asap.
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2