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Galaxy S Sreens not same

Hi
I have 2 Galaxy s here so i compared the Screens of them. I set on both brightness to lowest but they dont look different. On one of them the white looks much better. Its "more" white.
Can this be fixed or is this a hardware problem?

gpnda said:
Hi
I set on both brightness to lowest but they dont look different.
Can this be fixed or is this a hardware problem?
Click to expand...
Click to collapse
You mean they look different?
Afaik, SAMOLED screens display warmer colours after being used for awhile so a brand new screen will display cooler colours so that the white may appear blue tinted, this gradually disappears over time as stated above.

gpnda said:
Hi
I have 2 Galaxy s here so i compared the Screens of them. I set on both brightness to lowest but they dont look different. On one of them the white looks much better. Its "more" white.
Can this be fixed or is this a hardware problem?
Click to expand...
Click to collapse
Do you have voodoo lagfix on either?

Qazz~ said:
You mean they look different?
Afaik, SAMOLED screens display warmer colours after being used for awhile so a brand new screen will display cooler colours so that the white may appear blue tinted, this gradually disappears over time as stated above.
Click to expand...
Click to collapse
This is the correct technical explanation. New screen appear blueish and white. It gradually turns warmer upon use. It's due to the degradation of the blue-making organic compound.

How long is the screen expected to last?

kempas said:
How long is the screen expected to last?
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Enough I can't find for S Amoled but oled has a 5 years life based on 8hours on per day. I guess already in a year or two you will change your phone

Is super amoled screen dying

SGS screen is awesome, even if colors are not really well calibrated...
Yesterday, I saw a recent Galaxy S and it was really brighter than mine (4 months year old)
I noticed a huge difference!
Did anyone of you got the same experience?
Sent from my GT-I9000 using XDA App

Insulting question perhaps, but did you check the brightness slider of both phones?

nailerr said:
Insulting question perhaps, but did you check the brightness slider of both phones?
Click to expand...
Click to collapse
Of course, I wouldn't have started a thread! lol
Same rom, same kernel, same phone, same country, same settings. I'll try to post some pictures
Sent from my GT-I9000 using XDA App

We just got 4 at work. The supplier told us they only had 1 left a few weeks ago and we had to wait until they got new stock so when they turned up we had one from an old batch and three newer ones. The one older one was very noticably darker then the 3 newer ones even with exactly the same screen settings. It also had a slight blue tint to it.

My brother and I both have I9000 Galaxy. The 1st phone (the older one) was very bright that it resulted in eye strain while using!
After about a month when I bought a new Galaxy S it was very dark compared to the older phone on same settings and same firmware.
So maybe its the issue with some phones or I am guessing that the older phone suffered from backlight bleeding! But now the screen broke and I bought a replacement screen from ebay.

Oled screens don't have a backlight
Sent from my GT-I9000 using XDA App

android53 said:
Oled screens don't have a backlight
Sent from my GT-I9000 using XDA App
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Click to collapse
they dont need a backlight to be viewable.....but SGS still has a backlight to boost the total brightness

dreamtheater39 said:
they dont need a backlight to be viewable.....but SGS still has a backlight to boost the total brightness
Click to expand...
Click to collapse
Now THAT explains something. I have a pixel tester and when I set it to black, in a pitch black room I can still see the screen. Well now I know... You sure about that though? Even the Samsung Super AMOLED videos make a point of there being no backlight.

AMOLED does die over time, blue first. So as I understand it most of these AMOLED screens in phones have twice the blue pixels to make up for it over time. I would of suspected that the lifetime is a few years though, not months.

There is no backlight in S-AMOLED displays.
http://forum.xda-developers.com/showpost.php?p=7683527&postcount=37
http://forum.xda-developers.com/showpost.php?p=7710572&postcount=40
http://forum.xda-developers.com/showpost.php?p=8910101&postcount=122
As you can see, there is no lamp, neither a white background needed for the light to reflect.

dnsp said:
There is no backlight in S-AMOLED displays.
http://forum.xda-developers.com/showpost.php?p=7683527&postcount=37
http://forum.xda-developers.com/showpost.php?p=7710572&postcount=40
http://forum.xda-developers.com/showpost.php?p=8910101&postcount=122
As you can see, there is no lamp, neither a white background needed for the light to reflect.
Click to expand...
Click to collapse
Thought so. So, can anyone explain to me why I can see my screen in the dark when the phone is showing only a black screen? Such as with the dead pixel checking app I used? Perhaps it does not correctly request true black but even noLED from these forums does it.

I would expect it's due to leakage current.
Each pixel on the screen is controlled by a transistor (actually probably more than one). Even when the transistor is turned off (and the pixel should be dark) there will still be a small amount of current leak through. I suspect that this is what causes the screen to glow slightly even when displaying black.
Of course when the entire screen is turned off, no power is going to the display, so even this small current stops and the screen is darker.

Maybe Samsung has switched to SLCD screens.
The rumour circulated few months ago that Samsung has stopped the production of the Wave and the Galaxy S smartphones because of the Super AMOLED shortage.
Maybe now they are shiping SGS with SLCD.
The SLCD screens are much brigther than SAMOLED.
Here is the comparison:
http://sefanboy.com/2010/10/29/samsung-wave-ii-vs-samsung-galaxy-s-slcd-vs-super-amoled/

raf2k said:
Maybe Samsung has switched to SLCD screens.
The rumour circulated few months ago that Samsung has stopped the production of the Wave and the Galaxy S smartphones because of the Super AMOLED shortage.
Maybe now they are shiping SGS with SLCD.
The SLCD screens are much brigther than SAMOLED.
Here is the comparison:
http://sefanboy.com/2010/10/29/samsung-wave-ii-vs-samsung-galaxy-s-slcd-vs-super-amoled/
Click to expand...
Click to collapse
I highly doubt samsung would discontinue the SGS line for any reason. In fact, they just started to showcase the 7inch SAMOLED most likely for the next gen galaxy tab.
However, here's a comparison.
http://www.youtube.com/watch?v=gUF4dLVdFKc

raf2k said:
Maybe Samsung has switched to SLCD screens.
The rumour circulated few months ago that Samsung has stopped the production of the Wave and the Galaxy S smartphones because of the Super AMOLED shortage.
Maybe now they are shiping SGS with SLCD.
The SLCD screens are much brigther than SAMOLED.
Here is the comparison:
http://sefanboy.com/2010/10/29/samsung-wave-ii-vs-samsung-galaxy-s-slcd-vs-super-amoled/
Click to expand...
Click to collapse
I'm sure it was an AMOLED Screen, easy to recognize...
I'll try to make some photos.

i got mine when it first came out and i have it on zero brightness setting and it is bright and clear (except in sunlight when it becomes as hard as any other phone to see)

ive tried about 15 of these phones and the screens on all of them were different when set to the highest brightness. The most common differences were darker and lighter shades of blue. a couple were more red than others and looked 'warmer'. The one im using right now is pretty neutral though not sure why that is but they all seem to be different.
(all 15 were running JH2 stock with no lagfixes on i9000m from bell)

Argh...
I have a dead green pixel towards the bottom of the phone... And now that i know its there.. I keep looking at it! Def wasnt dead when i got it
A good way to test the pixels is via the *#0*# menu... red, green and blue.

i always have brightness settings at the lowest and when i was using eclair rom everything was really dark. after flashing froyo rom i noticed straight away even at the lowest settings the phone is still pretty bright but green colour does not look good at all.

Galaxy s2 color profile

Dear owner of galaxy s2,
I'm sure I'm not the only to be bothered by the screen color temperatures totally wrong. Mine tints really to much to blue.
Did someone manage to install a screen color changer ?
Thanks

I think its being worked on. Meanwhile if you go into the screen settings you'll see a setting for display type or something similar. Switch that from Dynamic to Movie and the colours should be more balanced..

It should fix itself over a few weeks, the blue amoleds degrade a lot faster than the green and red

So in a few weeks it degrades faster, does that mean in a few months it would've degraded so much he'll have another issue? I don't think your comment makes sense
Sent from my GT-I9100 using XDA App

The dynamic standard and movies setting are all terrible according to me.
Are you really happy with it ?

godutch said:
It should fix itself over a few weeks, the blue amoleds degrade a lot faster than the green and red
Click to expand...
Click to collapse
In that case, we have to stop using Litening Rom which is blue themed

Draknof said:
Dear owner of galaxy s2,
I'm sure I'm not the only to be bothered by the screen color temperatures totally wrong. Mine tints really to much to blue.
Did someone manage to install a screen color changer ?
Thanks
Click to expand...
Click to collapse
I have bought my 2nd sgs2 yesterday and I found out that this unit has lot of red tint in low brightness. Almost the effect is so high that all those gray bands look like light maroon shades. Samsung has really messed up with these samoledplus displays in sgs2. In my 1st sgs2 the display was quite dull even in 100% brightness compared to other sgs2 displays. Fortunately it was gifted to me so I sold that unit.
But this new unit has new display problem of strong red tint all over the screen affecting gray shade a lot in low brightness mode. The only fortunate thing is that famous yellow tint issue is almost nil and in 100% brightness display is very bright. But I am still gonna ask for brand new replacement of this faulty sgs2 unit.

on2a said:
So in a few weeks it degrades faster, does that mean in a few months it would've degraded so much he'll have another issue? I don't think your comment makes sense
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1124669

[Q] Am I alone with my screen issue ?

Hi,
I do have an issue with the screen of my SGN :
When the display is dimed at maximum and with grey backgrounds, horizontal lines like shades (in portrait mode) are visible.
It's almost like the screen were dirty.
Is it a special thing on amoled screens ?
Am I the only one with that ?
Thanks in advance for your reaction.
And sorry for my english, I'm french...

My galaxy S had this my GSII had this even worse. It's samsung amoled design...

inurb said:
My galaxy S had this my GSII had this even worse. It's samsung amoled design...
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Click to collapse
Thank you. But even with the Note ??!??

LM666 said:
Thank you. But even with the Note ??!??
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Click to collapse
I have a SGN and I'm afraid I see the same thing. It's primarily on grey backgrounds...but sometimes is slightly visible on white backgrounds as well. Annoying....but the screen is otherwise brilliant. I suppose this is the price we have to pay...but I don't like it one bit ..

search the forum. There are threads about this and other display issues. You are far from being alone. I have sent mine back for this and other screen problems.

LM666 said:
Thank you. But even with the Note ??!??
Click to expand...
Click to collapse
Yes, also present on the note... it is only viewable when you dim the screen and have a gray background. For example if you use the ScreenFilter app you can really see all the artifacts and lines. I don't really see this when you have full brightness.

seepage said:
search the forum. There are threads about this and other display issues. You are far from being alone. I have sent mine back for this and other screen problems.
Click to expand...
Click to collapse
Thanks. And did you get a Note with a perfect screen ?

Others also with that problem ?

LM666 said:
Thanks. And did you get a Note with a perfect screen ?
Click to expand...
Click to collapse
Not got a replacement yet.

I've had two SGN's with these problems so far. The first one I ordered and the replacement I got. The first one I got even had dead pixels and dust behind the screen.
I don't think I will be getting a third one. Samsung really sucks at doing quality phones free from any defects. Just reading the threads about the SGN here on the forum shows that the screen is not the only problem. For an example, the physical buttons stops responding randomly and the note can't play some videos properly while other more older and cheaper phones can... I'm disappointed with these problems and I'm currently using my iPhone 4... Which works without any problem, but unfortunately doesn't have a 5.3" HD screen!!!!!

Screen smearing on galaxy S5's as well

Well i just noticed the dreaded screen smearing/purple haze on my new note 3 when i had the brightness turned all the way down, so i decided to check my new S5 and guess what its there too!
FU samsung how can they not pick up on this???
Yes there are fixes but it shouldn't be happening in the first place if you want to test yours out download the pic below, set brightness to 0 and zoom in on the pic and you will notice pink/purple smearing between the black and grey colours when moving the pic around.
Hmm wonder why they made all the menu bars green? now you know.

Don't see any problem in mine.

Michael_P said:
Don't see any problem in mine.
Click to expand...
Click to collapse
You need to have the screen brightness all the way down and make sure your looking real closely.
Out of the S4, note 3 and the s5 Samsung has seemed to make it the less noticeable on the S5.

What you could be seeing is the after image of the screen. You're seeing pink shade because of the way RGB is showing the color grey. You're seeing smearing because you could be moving the image around quite fast and the display is not fast enough to trail your fingers.

I followed your instructions and could see nothing that you are speaking of.
I have also previously owned a Note 3 and did not experience any "purple smearing" either.
In my opinion you are grossly overreacting.

mediumsteak said:
I followed your instructions and could see nothing that you are speaking of.
I have also previously owned a Note 3 and did not experience any "purple smearing" either.
In my opinion you are grossly overreacting.
Click to expand...
Click to collapse
Have you read through THIS THREAD on it happening on the Note 3?

This is true exaxtly the same and really annoing when i want to use the phone at night how can i fix it
Sent from my SM-G900F using XDA Premium 4 mobile app

I started the "infamous" thread over a year ago http://forum.xda-developers.com/showthread.php?t=2252445
Despite some thinking it was a software issue, it's simply a hardware issue with the panel.
The smearing occurs due to the native refresh times of the panel when going from completely off to dark shades, I.e black to greys etc.
The reason it wasn't an issue on older amoled screens was that the pixels were not completely off when displaying black, which is why in a dark room you could see a glow to blacks and also the "infamous streaks and blobs".
On the newer samsung amoled screens black is completely black, the pixels are not illuminated.
Samsung are just using cheap panels.
I spent a lot of money on an oled samsung tv there was the same issue. Putting a film on like sin city would highlight it. I returned the tv.

^S5 is the latest, so it's definitely new. So, was it really the panel?

What application requires one to view a dark grey image at 0 brightness zoomed in at 100%?
Come now, this thread is surely to attract the likes of trolls, or have I missed something?
I have no smearing, probably its all in your shorts lol.

homer285 said:
What application requires one to view a dark grey image at 0 brightness zoomed in at 100%?
Come now, this thread is surely to attract the likes of trolls, or have I missed something?
I have no smearing, probably its all in your shorts lol.
Click to expand...
Click to collapse
Or you have bad vison. Just put ur brightnes to lowest and enter a dark roon and you will see it
Sent from my SM-G900F using XDA Premium 4 mobile app

Ok lets be realistic, the people saying their S5's are not doing it are ether one of 2 things,....
1. Plain stupid and don't know how to adjust their phones display to reproduce the smearing, example: "homer285 What application requires one to view a dark grey image at 0 brightness zoomed in at 100%?"
2. or in denial and don't want to believe their perfect s5's could have such a flaw.
Because all S5s and note 3s for that matter are all shipped with the same display hardware tech, and no you don't have some super special s5 that has different hardware from everyone else cause your awesome .
Now saying that there are fixes for the problem, one can use a screen colour adjuster to keep the "off black pixils" turned slightly on witch helps big time but kills ur battery dead.

homer285 said:
What application requires one to view a dark grey image at 0 brightness zoomed in at 100%?
Come now, this thread is surely to attract the likes of trolls, or have I missed something?
I have no smearing, probably its all in your shorts lol.
Click to expand...
Click to collapse
Not black on whole screen, but you may see pure black parts when you watch videos that are not on HD scale. Also, around 95% of movies have at least one dark or low-light scene.
Xanode said:
Ok lets be realistic, the people saying their S5's are not doing it are ether one of 2 things,....
1. Plain stupid and don't know how to adjust their phones display to reproduce the smearing, example: "homer285 What application requires one to view a dark grey image at 0 brightness zoomed in at 100%?"
2. or in denial and don't want to believe their perfect s5's could have such a flaw.
Because all S5s and note 3s for that matter are all shipped with the same display hardware tech, and no you don't have some super special s5 that has different hardware from everyone else cause your awesome .
Now saying that there are fixes for the problem, one can use a screen colour adjuster to keep the "off black pixils" turned slightly on witch helps big time but kills ur battery dead.
Click to expand...
Click to collapse
Most of us are neither of those two. Just because you experienced it, it doesn't mean that everyone has. Phones are not made in a single batch/production date. It's impossible to produce millions of S5 in a single day anyway. All products sold internationally have the so-called batch date/number to trace possible problems. My previous S3 have the black blotches when screen is dark and viewed under very low light, but my friend's has none. Now, my S5 doesn't have any screen problems.

ramsenn said:
Or you have bad vison. Just put ur brightnes to lowest and enter a dark roon and you will see it
Sent from my SM-G900F using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Have fun with your "smearing" lol

I can confirm this too on my SM-G900F 16GB model... The Note 2 and S3 i owned didn't have this, but the S4 does and now the S5 also....
When having a black background (and lowered brightness) you'll notice it when swiping through the homescreen pages.
I don't know what causes this but i doubt it can't be fixed, yet Samsung continuous playing it their own way by ignoring the problem (the 'anti-smearing' update they once released was a joke)

This should only be a problem at night or in low light environments(typically when screen brightness is very low). I'm pretty sure it's a hardware limitation of Pentile AMOLED screens with the diamond sub pixel matrix, and thus affects all GS5's at low/very low brightness levels.
I've suggested this a couple of times on here, I'll say it again: 1.Change the screen mode to Cinema or Pro Photo.
2. (More importantly) Download Lux(free) and change the White Balance to Fluorescent. This slightly tints the blacks, and greatly reduces the smearing effect.
N9005
Don't thank me, I'm useless

denski101 said:
I'm pretty sure it's a hardware limitation of Pentile AMOLED screens, and thus affects all GS5's at low/very low brightness levels.
Click to expand...
Click to collapse
The S3 had a PenTile AMOLED screen and it wasn't affected by this. AFAIK it's due to the Diamond Pixel layout Samsung uses on the latter Galaxy series.

born4trance said:
The S3 had a PenTile AMOLED screen and it wasn't affected by this. AFAIK it's due to the Diamond Pixel layout Samsung uses on the latter Galaxy series.
Click to expand...
Click to collapse
Your right. I had that in mind, but was confusing Pentile and the Diamond pixel layout as one and the same. My mistake.
N9005
Don't thank me, I'm useless

Xanode said:
You need to have the screen brightness all the way down and make sure your looking real closely.
Out of the S4, note 3 and the s5 Samsung has seemed to make it the less noticeable on the S5.
Click to expand...
Click to collapse
ramsenn said:
Or you have bad vison. Just put ur brightnes to lowest and enter a dark roon and you will see it
Click to expand...
Click to collapse
wow, pathetic. I hate all the BS threads about how samsung screwed us on the screen. Basically, by saying to turn down the screen all the way down and looking closely, in a dark room, you are asking somebody to look for a problem that never happens in a real world scenario anyways? WTF is up with all the people looking for problems in technology? Honestly, why in tha hell do people always try to find the tiniest this and the smallest that in every piece of tech they own and then bash the constructor for it, things that in the first place only appear in VERY SPECIFIC SCENARIOS THAT YOU NEVER ENCOUNTER IN REAL LIFE?

polish_pat said:
wow, pathetic. I hate all the BS threads about how samsung screwed us on the screen. Basically, by saying to turn down the screen all the way down and looking closely, in a dark room, you are asking somebody to look for a problem that never happens in a real world scenario anyways? WTF is up with all the people looking for problems in technology? Honestly, why in tha hell do people always try to find the tiniest this and the smallest that in every piece of tech they own and then bash the constructor for it, things that in the first place only appear in VERY SPECIFIC SCENARIOS THAT YOU NEVER ENCOUNTER IN REAL LIFE?
Click to expand...
Click to collapse
Or you are just a kurwa who use full brightness at night to fuc up your eyes.
Sent from my SM-G900F using XDA Premium 4 mobile app