Database Users

[Q] [???] WTF with the amoled matrix???

Prerequisites for the test:
1. Wallpaper with black background;
2. Screen Filter from Market with 6-8% of brightness;
3. Camera shoot settings: ISO 100, 30 sec, manual focus.
Result:

There have been reports of black spots when displaying dark grey or black backgrounds. It's a phenomenon that's been around on amoled displays for a couple years. Not a big deal unless you do a lot of black and dark grey viewing.

EX3cutor said:
Prerequisites for the test:
1. Wallpaper with black background;
2. Screen Filter from Market with 6-8% of brightness;
3. Camera shoot settings: ISO 100, 30 sec, manual focus.
Result:
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I have no idea if that is supposed to be normal with the SuperAMOLED screens but when I had my Galaxy S1, I really had to look hard in a totally dark room to even see a slight faint glow.. it was extremely uniform and no black blotches, same goes for my Samsung Wave.
Incoming wall of text-
The Galaxy S2 was a combo breaker though, I had a total of 3 replacements the first one really had great blacks.. in a totally dark room I had to put the phone THAT close to my face even to see the faint glow, but that screen had some yellow tinting, 2nd and 3rd replacement had random blotch spots and the 3rd one was even noticeable even with minimal ambient light.
My Galaxy Note also has those blotches but they are very very small and I cant see them with my normal movie viewing in my room before I sleep, Try to have it replaced if it bothers you, it looks like an eyesore for me but dont let my expectations be yours.

EarlZ said:
My Galaxy Note also has those blotches but they are very very small and I cant see them with my normal movie viewing in my room before I sleep, Try to have it replaced if it bothers you, it looks like an eyesore for me but dont let my expectations be yours.
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I think they all do this. I see this every now and then in a very dark room.
I guess try not to have a seizure and have your eyes lock open for 30 seconds, and you'll be alright. jk
- Frank

I've had this on SGS2 , now I have it on my Note
It's not a big deal for me , I saw these spots twice in a month,so it doesn't bather me , the screen looks amazing all the time

ChodTheWacko said:
I think they all do this. I see this every now and then in a very dark room.
I guess try not to have a seizure and have your eyes lock open for 30 seconds, and you'll be alright. jk
- Frank
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I dont know if all the notes are affected with this but my Galaxy S1, Samsung Wave and first Galaxy S2 didnt have this issue. Absolutely deep dark blacks as if they were really off with extremely minimal but uniform glow. I was devastated to see it on my 2nd and 3rd S2.
It maybe normal for some but since my expectation was set high with the Galaxy S1 and Wave its not normal for me but on my note its so minimal that its not worth the risk of replacement.
But you know if all of us would be vigilant in not accepting these things, samsung might just step up the quality control with this but IDK if its worth the inconvenience.

EarlZ said:
I dont know if all the notes are affected with this but my Galaxy S1, Samsung Wave and first Galaxy S2 didnt have this issue. Absolutely deep dark blacks as if they were really off with extremely minimal but uniform glow. I was devastated to see it on my 2nd and 3rd S2.
It maybe normal for some but since my expectation was set high with the Galaxy S1 and Wave its not normal for me but on my note its so minimal that its not worth the risk of replacement.
But you know if all of us would be vigilant in not accepting these things, samsung might just step up the quality control with this but IDK if its worth the inconvenience.
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i'm kind of feeling the same way. my galaxy s doesn't have any of these blotches or glowing blacks. i bought and returned a galaxy s2 LTE because of this reason. just purchased a note and am awaiting shipment. I hope it is something i can live with. i watch a lot of videos / netflix before falling asleep, and that is when it is really noticeable.

Well if you had an LCD the backlight glow would be much more than that is.
Go look at an iPad in the dark with a "black" screen, then come back and complain about the Note (remember, everything Apple does is the best of the best).
Yes mine glows too, and I have a 2 inch dark line by the left edge seen in pitch dark room too. The larger these panels get, the harder they are to get "perfect". If they only released truly perfect panels, the Note would probably cost $1600 as the reject rate would be super high.
MyZune HD had this too (that is the first time I "freaked out" about it, then realized that most do this and it isn't too bad when displaying something). I just chalk it up to OLED tech being kind of new still. As long as it isn't noticeable in images, and as long as I don't have any bad pixels I don't freak out about it anymore.

rnewton01 said:
i'm kind of feeling the same way. my galaxy s doesn't have any of these blotches or glowing blacks. i bought and returned a galaxy s2 LTE because of this reason. just purchased a note and am awaiting shipment. I hope it is something i can live with. i watch a lot of videos / netflix before falling asleep, and that is when it is really noticeable.
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Have it replaced if it bothers you, if you decide to just live with it then it means your OK with samsung selling you faulty or out of spec products.
DaveC1964 said:
Well if you had an LCD the backlight glow would be much more than that is.
Go look at an iPad in the dark with a "black" screen, then come back and complain about the Note (remember, everything Apple does is the best of the best).
Yes mine glows too, and I have a 2 inch dark line by the left edge seen in pitch dark room too. The larger these panels get, the harder they are to get "perfect". If they only released truly perfect panels, the Note would probably cost $1600 as the reject rate would be super high.
MyZune HD had this too (that is the first time I "freaked out" about it, then realized that most do this and it isn't too bad when displaying something). I just chalk it up to OLED tech being kind of new still. As long as it isn't noticeable in images, and as long as I don't have any bad pixels I don't freak out about it anymore.
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True the bigger the panels the more defects it can possibly have, hence the 4" SGS1 and 3.5" Samsung wave never had these issues.
But we also have to consider that the blotches are out of spec and considering that the screen is one of the best selling feature on the screen but its also its biggest weakness to have such issues even how minor it is.

EarlZ said:
But you know if all of us would be vigilant in not accepting these things, samsung might just step up the quality control with this but IDK if its worth the inconvenience.
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It's a tough line to draw, isn't it?
Part of the problem here is the Note is a new device, and I do hope enough people accept its quirks for it to succeed. I'm not asking anyone too, but I do hope they do. If there was a viable alternative then I would be more willing to be picky. But as I said in another thread, choose what device gives you the overall best experience, and live with its deficiencies.
Currently the note is that device for me, so I can ignore stuff like this. (helps that it doesn't happen much.). If this issue is really detracting from your enjoyment - then by all means, return it.
But the main point of my post was - this is a common problem, so I wouldn't return it expecting to get a better one.
- Frank

ChodTheWacko said:
It's a tough line to draw, isn't it?
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Very tough especially no other device comes remotely close.
ChodTheWacko said:
Part of the problem here is the Note is a new device, and I do hope enough people accept its quirks for it to succeed. I'm not asking anyone too, but I do hope they do.
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Acceptance is a double edge sword, we accept the quirks at the same time Samsung can just slack on QC.
ChodTheWacko said:
If there was a viable alternative then I would be more willing to be picky. But as I said in another thread, choose what device gives you the overall best experience, and live with its deficiencies.
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Yeah, no other alternative device.. LG could pull off something like this but their software end is gonna suck big time!
ChodTheWacko said:
But the main point of my post was - this is a common problem, so I wouldn't return it expecting to get a better one.
- Frank
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Click to collapse
Not everyone has the same level of expectation though, on my end Im just luck the black spots are extremely small that Id have to really look for them.

I think the important thing here is the extremely low Screen Filter settings the OP used. I don't think you can really pick fault with a device when you're using it at a brightness well below normal use or the manufacturers intentions.

Screen feedbacks/issues

For the current owners, especially for those who are 'extremely' particular about the screen, do you guys any screen related issues?
I've been with the Galaxy S1 and S8500, both devices used the first generation SAMOLED screen and I never had any screen related issues on both devices but as of late there's been a lot of screen issues ( mostly quality control related ) on the Galaxy S2, Galaxy Note and Galaxy Nexus..
To name a few:
- faint but visible horizontal/vertical lines visible on white/grey images
- green/blue color tint when the device is tilted with in just a few degree's
- uneven screen brightness
- suction cup rings
- blotchy/spotty blacks, you can see darker or brighter spots when the screen is displaying an entire black image - All Tab7.7's have spotty blacks, if anyone has a screen w/o spotty blacks please post it up here, it would help a lot of people.
I owned a Galaxy S2, replaced for a total of 7 times all had different screen related issues and I decided to get a refund for and got the G-Note when It came out, already had 1 screen replacement which resolved the lines issue but other screen related issues took its place, still waiting for the 3rd screen replacement to arrive and also processing a refund if they are not able to fix it.
I plan to make the Tab7.7 as my primary media device ( please spare me the 'get a plasma tv defense' ) and a web browsing device so screen quality is very important to me and most of the time it will be used at 0-10% screen brightness in a dark room (bed room).
Using the Tab in a totally dark room is nothing considered as 'extreme conditions' just because not everyone has the same usage pattern does not translate to 'extreme conditions only' situation.
Id like to ask a very honest and objective feedback from the current owners, I also understand that as of now only a few have this device. Testing in a dark room or with minimal ambient light is preferred as reflections can really skew results.
For anyone also wanting to contribute check the following images on your Tab 7.7 and put it in full screen and see if there are any uneven shades,lines or anything to report about.
This thread will get more exposure as the Tab 7.7 is slowly rolled out around the world. I would like to restate that this is purely an objective thread and not the subjective 'i dont see it in normal use' because not everyone has the same normal usage. Its not to say that all of the Tab7.7 screens are defective but Id like to see how wide spread the issue is based on XDA-Developer members. Again people, objective and not subjective.
EDIT:
For now it seems that I've gotten enough feedback and expect the very same issues from the Galaxy S2, Need a huge amount of luck for the purchase on my end.
EDIT2:
We need someone who claims that their black screen output is very uniform and does not have any spots, so far nobody has posted yet but we do see claims but these claims are not enough, for the sake of research anyone with an screen with no blotches or spots on black post up.
EDIT3: (Feb 19 2012)
After checking out and screening a total of 15 units from different stores and different dates, I've managed to see only 2 units with 'acceptable' screens. I say acceptable because I am expecting the grey rendering to be as good as on the Galaxy S and S8500. I will be getting one tomorrow but it still has a visible darker top part and lighter bottom when rendering greys.
The very common issue I've seen is a visible thick vertical/horizontal lines on the screen when rendering greys and either a yellowish or greenish discoloration at the bottom and some reddish bleeding on the edges ( mostly top ) I dont think a screen that can render greys on the Tab7.7 exists for now but Im sure it will be possible 6-8 months down the road when screen production gets better.
Different shades of greys are my objective way of testing the screen quality as it easily cuts down the time needed to do so, if a certain screen passes my objective test I goto the subjective test, Load up Thumbkeyboard and use the split lay out with the ICS theme and observe if the shades on the letters from Q to P are the same, some screens that fail the objective test actually produce good results on the subjective test, while others really give out a very obvious discoloration, also all of my tests are done with 0% brightness since thats the brightness i will be using 90% of the time, as the brightness ramps up these discolorations become less obvious.
EDIT4:
Anyone wanting to set here my suite of grey test images
http://www.mediafire.com/?hfxjz8nhymc4h4d
Crucial images are the grey-15 and grey-25, test in a room w/o any directly light or reflections from your face. 0-33% brightness.
EDIT5:
Why grey images, why all this specific settings that require planetary alignment and a virgin sacrifice, read on:-
http://forum.xda-developers.com/showpost.php?p=23529783&postcount=27
EarlZ said:
I've had mine for almost a month, no burn-in issues, Ive been using the Tab almost in portrait mode and stopped using Honeybar just to see how fast the burn-in kicks in, nothing what so ever.
I cant judge if its visible in normal use or not, unlike others I dont assume how a screen issue looks like unless I've seen it or at least pictures of the issue, this has always been the source of many arguments in forums, people just assume all screens are created equally and just because they dont see the exact same issue on their end they actually become more aggressive and hateful and they tend to find the need to keep defending the product. What gives?
Companies always add a cost buffer to cover for returns and that is usually with upto 3 returns, but complacent people just accepting obivous defects are also the cause for this level of quality control since Samsung can now get away with it, especially that some people are false advocating that there are issues thats normal to AMOLED which is incorrect.
I havent used my Tab yet as an ebook reader so Im not exactly sure what they are experiencing but the pictures posted paint a clear picture, It can be annoying at times I suppose and when a product is marketed for its great screen and deep black levels, should anything less be expected? I mean personally coming from a Galaxy S which had none of the screen issues you've mentioned, the Tab7.7's screen should be expected to be better in every single aspect, right?
I've been quite active in this forum and I haven't seen anyone report multiple exchanges yet, I didnt even exchange my Tab yet.
I dont know who you are specifically referring to but I also use greys as my test images, let me give you a little more perspective incase you made a 'selective reading' in regards to this issue.
Grey colors easily allow you to check if your getting a quality screen or not, they can easily show those lines and discolorations with out the need for using multiple test images, they give you objective results especially when your buying the device but its not very conclusive since the store light will show a lot of reflection on the screen.
Testing at 0% brightness in low light environment is also ideal for an objective testing to avoid any reflections that you might see hiding these flaws, but if one exclusively uses the device in a very bright environment then this step can be skipped.
And this is the real world perspective:
This is the original grey image:
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
and it should look close to that on the tablet.. For comparison, on my Galaxy S and my former Galaxy S2 can render this color perfectly.
not something like this:
one side is darker, visible lines, dots, circle marks.
You can argue that it only affects greys but it does affect a lot of things you see on the screen and to a certain extent like this:
and when we flip the tab over we get this:
Ignore the moire, notice that one side is darker than the other.
This is how the original frame looks like:
Sure not everyone uses the Tab7.7 as a media player, remember those visible rings and spots above? Check out the attached images.
This is because reviewers hype up the black levels saying its totally black and some internet articles say that AMOLED is in an 'off' state when displaying blacks which gives us the false information and relatively ruining expectations, my first samoled device was the S8500 (Wave) and the blacks were great, no blobs or spots and it had a very faint glow, that was the foundation of my expectation which was further reinforced by the Galaxy S that gave the same results. Others may have started with the Galaxy S2 and the expectations set by reviewers so they ended up returning their devices. On my end I returned it for the yellow tint, which the technician also confirmed that it was very visible and during that time there was nothing they can do.
Sorry for the wall of text but I felt that I should be explain this thoroughly as I am very affected by the screen issues and I am very vocal about it and it did get things done on my end.
TL;DR
Bottom line is, its a $700 device with its primary feature as the screen which is advertized,marketed and specified to have the most vivid, crisp, sharp and clear images. Others are reporting that they dont have any screen issues-what-so ever so why should someone else for settle anything less?
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the 77 has same screen as the note... but it's brightness more even across the screen.. the only problem you will have is it's size... since you're coming from Note.. you might find it hard to justified it's size... like bringing it with u anywhere.? when jogging?
I am now using my old trusty ipad2 ... which I can type like a breeze...
like I said 77 has better amoled screen that early Notes...

sectorlord said:
the 77 has same screen as the note...
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Erm, wrong...
The Note is a PenTile display. The 7.7 is not.
The Note's PenTile arrangement uses 8 subpixels per 1 pixel.
The 7.7's SAMOLED Plus display uses 12 subpixels per 1 pixel.

I won't be brining it around for joggin of that sort, its gonna be my primary media device so it needs defect free from those random manufacturing faults.
It might be too early to ask this as probably the user count in xda is pretty small.

I'm returning one of this beacuse when reading in a dark room there are serval visible rings and spots darker than the rest of the screen.
You are only able to see it when you have a grey or black background and your eyes are adapted to the darkness.

EarlZ said:
For the current owners, especially for those who are 'extremely' particular about the screen, do you guys any screen related issues?
Click to expand...
Click to collapse
This device probably isn't for you, yet.
I just got the 7.7 and have issues. The brightness is a bit brighter along one side, and I have the dark spot issue, this time in the form of dark circles, equally spaced (probably from the glass handling suction cups or something)
On the bright side, at least I don't have any bad pixels ;/
BTW a good app for testing is the simple "Advanced task manager" app, it has a dark screen near black and these blotches are visible with this even in a room with some light.

I used my galaxy tab 7.7 for almost a month and i must say , the dark circles are truly annoying especially when you watch movies with dark scenes in a dark room with low brightness.You can hide the dark circles by increasing the brightness but it is a simple waste of battery life and its really bright in dark room. I also noticed screen burn in for the wifi and battery icon, i used my 7.7 on zero brightness since day 1 and screen burn-in still persist after 3 weeks. Good way to see the dark circles is by simply turning off the tablet, the tablet will "glow" with the dark circles after the samsung logo is gone.

[email protected] said:
I'm returning one of this beacuse when reading in a dark room there are serval visible rings and spots darker than the rest of the screen.
You are only able to see it when you have a grey or black background and your eyes are adapted to the darkness.
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Click to collapse
My old and new one have these rings. I'm guessing its glue or something bonding the screen to a backplate. Or an imprint of a backplate on the screen.
In any case I think this is not a problem or defect. You really must be in total darkness and viewing a black screen to see it. And even then its very hard to see.

[email protected] said:
I'm returning one of this beacuse when reading in a dark room there are serval visible rings and spots darker than the rest of the screen.
You are only able to see it when you have a grey or black background and your eyes are adapted to the darkness.
Click to expand...
Click to collapse
DaveC1964 said:
This device probably isn't for you, yet.
I just got the 7.7 and have issues. The brightness is a bit brighter along one side, and I have the dark spot issue, this time in the form of dark circles, equally spaced (probably from the glass handling suction cups or something)
On the bright side, at least I don't have any bad pixels ;/
BTW a good app for testing is the simple "Advanced task manager" app, it has a dark screen near black and these blotches are visible with this even in a room with some light.
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randomgent said:
I used my galaxy tab 7.7 for almost a month and i must say , the dark circles are truly annoying especially when you watch movies with dark scenes in a dark room with low brightness.You can hide the dark circles by increasing the brightness but it is a simple waste of battery life and its really bright in dark room. I also noticed screen burn in for the wifi and battery icon, i used my 7.7 on zero brightness since day 1 and screen burn-in still persist after 3 weeks. Good way to see the dark circles is by simply turning off the tablet, the tablet will "glow" with the dark circles after the samsung logo is gone.
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Thanks for the heads up, It would seem that the darker spots are quite obvious since the screen is bigger, I also had those spots on some of my Galaxy S2 replacements and I found it very unacceptable and the same with my Note.
When I was testing at the store which had the usual store lighting one unit had several visible lines in greys while the other one only had 3 lines just in the middle.
For the uneven brightness on the screen, Im pretty sensitive to that.. when I saw the HC task bar in landscape mode I immediately noticed a difference in brightness but only 1 of the 2 exhibited the issue.
The screen burn-in is a concern as Im getting the same feedback from friends who bought the unit just last week!
I understand that not all screens have this issue but the chances of getting an out of spec screen might be pretty high, wish they brought back the same quality control when the Galaxy S initially came out, which had none of these issues what so ever.
BTW a good app for testing is the simple "Advanced task manager" app, it has a dark screen near black and these blotches are visible with this even in a room with some light.
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Do you mean advanced task killer?
reiconol said:
My old and new one have these rings. I'm guessing its glue or something bonding the screen to a backplate. Or an imprint of a backplate on the screen.
In any case I think this is not a problem or defect. You really must be in total darkness and viewing a black screen to see it. And even then its very hard to see.
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It is a defect and a very bad one, also the visibility on this is not the same on all units. I have a suction up ring on my Galaxy Note which is visible at the 'service center lighting conditions' which the tech also saw the rings. Several pictures of this issue also posted on the various Galaxy S2 forums here in XDA under a well lit condition.
DaveC1964 said:
This device probably isn't for you, yet.
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Seems like it until screen yields improve or I get a chance to get one w/o any of these out of spec issues.

No screen is perfect, not even the ipad screen.
Ihave a galaxy s2 and rememeber hearing all the burn in worries last year. Almost a year later now and i dont have any burn in.
The only issue ive noticed is that some pixels on oled can have a slightly differrent brightness than others due to the nature of oled. Yes my s2 has a tiny amount of pixels like that,
But you have to look at it at the wrong angle with the wrong amount of ambient light with the wrong colour on the screen to notice it.
Yes a larger screen is likely to have more issues but if it was an ips screen then we would no doubt all complain about backlight bleed.
My advice is stop looking for problems with it and enjoy your tablet otherwise you will never be happy with it !
Sent from my GT-I9100 using xda premium

crunchie-uk said:
No screen is perfect, not even the ipad screen.
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True no screen is perfect, what I am looking for is a quality screen that is with in specification and Im more than certain there are batches of screens that will meet these requirements.
crunchie-uk said:
Ihave a galaxy s2 and rememeber hearing all the burn in worries last year. Almost a year later now and i dont have any burn in.
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Like what you said, no perfect screen but there are some screens that are made better, A year of usage with no burn-in is fantastic! Some are getting it as early 30days from purchase.
crunchie-uk said:
The only issue ive noticed is that some pixels on oled can have a slightly differrent brightness than others due to the nature of oled. Yes my s2 has a tiny amount of pixels like that,
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Yes to certain degree there are but they should not be noticeable to the naked eye, if its noticeable then its purely a quality control issue.
crunchie-uk said:
But you have to look at it at the wrong angle with the wrong amount of ambient light with the wrong colour on the screen to notice it.
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Well that depends on the usage, Im not pushing my own usage to anyone as I believe not everyone watches movies or browses the web on the tab7.7 with close to 0% brightness and in total darkness. My usage revolves on that so there are no special conditions on my end. I hope this is understandable.
crunchie-uk said:
Yes a larger screen is likely to have more issues but it was an ips screen then we woukd no doubt all complsin abiut backlight bleed.
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Yes backlight bleeding, but thank god both of the ipad2's here dont have any hint of backlight bleeding.
crunchie-uk said:
My advice is stop looking for problems with it and enjoy your tablet otherwise you will never be happy with it !
Sent from my GT-I9100 using xda premium
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I do not look for these issues intentionally and I see them with my normal usage, thats why I intend to research first before taking the plunge. But I understand I might have a higher standards that others but thats just me, I want to get the most of my purchase or not purchase at all.
Long story short, all the screen issues I've found on my Galaxy S2 was due to normal usage including the yellow tinting and darker spots which annoyed the heck out of me considering the cost of the device. On the Galaxy Note I've read about the all the screen related issues even on the video issue and still said to my self 'these things should not be noticeable in normal usage' but i was wrong. So this time Im taking it slowly but I already know what to expect. But I do understand what you are trying to say.
EDIT:
I dont want anyone to mistake this as a witch hunt, I just want to know what to expect, acceptance is easier when expectations are set.

Yes, there will never be 100% perfect screens. We'd all be constantly returning devices and not actually using them because of some "defect".
I've had my S2 since it first came out in May 2011. No problems with burn-in or colour shifts. I don't expect my 7.7 to have problems either. I'm not concerned that some "defect" will manifest itself under some extreme "only if I go looking " condition.
I'm enjoying using my S2, 7.7, and Transformer for what they are - mobile devices that provide communications, entertainment, and information.

Agreed I can also accept defects as long as I dont see them with my usage. Example between my SGS2 vs Galaxy Note which shared a common issue on the darker spots but it was more obvious on the SGS2 since it was a horrible pattern while on the Galaxy Note its tiny and multiple spots.
Every defect is different and we should not all assume that they are all acceptable to everyone.

reiconol said:
I'm not concerned that some "defect" will manifest itself under some extreme "only if I go looking " condition.QUOTE]
May be for you it's an extreme situation, but in my case, I bought this tablet for reading ebooks at bed (among other things) and I use white text over black background, so I am in that "extreme situation" on a daily basis.
I also have a Galaxy Nexus and that screen also have one line and some dots, but since my usage pattern is not the same it don't bothers because I really dont see it. But in the case of the tablet, I had to convince myself that I had paid a big amount of money to receive a screen with what for me is a defect.
I was the owner of a Huawei Ideos S7-105 (I now miss it) and appart from the battery and several other small annoyances I was pretty happy with it, I paid 150€ for it so I got what I paid for, but the 7.7 costs 450€ so my level of exigence is higher.
Sad thing abot all of this is that the other tablet that could be an option (Xoom 2 8.2) seems to bee plently of issues as well.
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[email protected] said:
May be for you it's an extreme situation, but in my case, I bought this tablet for reading ebooks at bed (among other things) and I use white text over black background, so I am in that "extreme situation" on a daily basis.
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This is always the case, people who dont have the same usage pattern nor with the same issue will never understand. But its been my understanding that this is already 'common' (but not normal) among amongst the hd samoled and samoled plus.
[email protected] said:
Sad thing abot all of this is that the other tablet that could be an option (Xoom 2 8.2) seems to bee plently of issues as well.
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Yes the other alternatives that I've been looking are also riddled with issues, come to think of it only samsung has the least issues based on my research.

I've seen the concerns on other AMOLED devices Earlz mentions as well.
It's not a deal beaker but you may want to keep a LCD device around for reading at night.
No use exchanging numerous times hoping for a perfect screen.
Right now while AMOLED is a very dramatic screen tech
but it's not at its best with low brightness levels,
and certain test patterns / images reveal other side effects .
For reading in the dark a screen like the iPad 2's IPS LCD is probably a better choice.
It offers a very low brightness level with consistent results.
I think the key is to use AMOLED devices where they perform best,
at higher brightness levels during the day.
In that scenario if you hand a iPad 2 and AMOLED device
to the average person they will be floored with the AMOLED screen.

I don't have any issue on low brightness level.
I always operate my 7.7 at ~0-20% brightness.

Did anyone test the screen using the screen test apps? I tested mine and I have yellowish patch at the bottom part of the screen. It's only visible in dim grey. Luckily there is no dead pixel but my screen start to squeak a little when press at the bottom corner. The quality control is really bad. I'm waiting for a engineering revision before going for warranty claim. I must say I'm disappointed.
Sent from my GT-P6800 using XDA App

earthman5678 said:
Did anyone test the screen using the screen test apps? I tested mine and I have yellowish patch at the bottom part of the screen. It's only visible in dim grey. Luckily there is no dead pixel but my screen start to squeak a little when press at the bottom corner. The quality control is really bad. I'm waiting for a engineering revision before going for warranty claim. I must say I'm disappointed.
Sent from my GT-P6800 using XDA App
Click to expand...
Click to collapse
There's been a few reports from here and another forum that the screen seems to squeak or dislodge a bit on the bottom corner.

@SonicTab:
I went for an amoled screen beause it's suposed that when screen is black pixels are off and there should be no light emiting so in my case, when reading in the dark I should only see the text, and not a bluish black background as every other LCD based screen
@GOF007:
You are either lucky or do not use the tablet in the same conditions as I do. Did you test it viewing one of the pictures in the first post in a dark room?
I really hope my case where just bad luck and be given another tablet whitout those screen issues, or at least with something less annoying.

[Q]Whitelevels and screen sharpness

I have only seen 4 galaxy tab 7.7's so far and I noticed all 4 of them really have bad white levels as compared to my galaxy note, disabled the auto power saving and there is a difference in white levels but its still not even close to the galaxy note at the same brightness level. Even at brightness 25% on the note the vs 100% on the tab 7.7shows 'dimmer'whites. This is not a rant but I'm just asking if the screens are calibrated that way or should I keep looking?
Also I noticed that the mdine engine oon the tab provides oversharpening to a lot of my photos and its so obvious and makes the images look bd, supercurio has the same findings.

It is a pretty big screen so it may be they limited the brightnes to save battery power. While the claim is that OLED takes less power than LCD that is not always true. When displaying white, OLED tech uses like 4X as much power as LCD. The power saving comes in when displaying images with medium to darker colors.
What is the "mdine engine"? Is this something that can be bypassed by using a different picture viewing app?
It is amazing how Samsung seems to always add some crappy image "enhancement" like DnIE or such crap. Why can't they just leave our images alone, as we meant them to be? It is freakin' OLED man. You don't need any contrast or sharpness enhancement you knuckleheads! OLED by nature is sharp and has great contrast! Duh!

I don't know. My 7.7 is super bright, sharp and with way warmer colors than my Note.
Sent from my GT-P6800 using xda premium

DaveC1964 said:
It is a pretty big screen so it may be they limited the brightnes to save battery power. While the claim is that OLED takes less power than LCD that is not always true. When displaying white, OLED tech uses like 4X as much power as LCD. The power saving comes in when displaying images with medium to darker colors.
What is the "mdine engine"? Is this something that can be bypassed by using a different picture viewing app?
It is amazing how Samsung seems to always add some crappy image "enhancement" like DnIE or such crap. Why can't they just leave our images alone, as we meant them to be? It is freakin' OLED man. You don't need any contrast or sharpness enhancement you knuckleheads! OLED by nature is sharp and has great contrast! Duh!
Click to expand...
Click to collapse
I'm thinking the samr thing that samsung might ne limiting how bright the whites can go duebto the screen size but based on what I've seen on samoleds some screens juat put out better white levels, not really brighter but whiter.
For the mdine its running system wide.
clubtech said:
I don't know. My 7.7 is super bright, sharp and with way warmer colors than my Note.
Sent from my GT-P6800 using xda premium
Click to expand...
Click to collapse
The samoled plus tends to have more warmer colors than the samoled, is the whites on your tab 7.7 'whiter' than on the note at the same brightness level?

EarlZ said:
For the mdine its running system wide.
Click to expand...
Click to collapse
Is there a way to shut it off or bypass it somehow?

DaveC1964 said:
Is there a way to shut it off or bypass it somehow?
Click to expand...
Click to collapse
Yes I believe so, Supercurio knows more about that stuff.
EDIT:
simulated example done in photoshop, anyone with the tab7.7 and better photoshop skills feel free to redo this simulated image

Perhaps one of the other reason that the 7.7's screen isn't quite as bright, apart from the obvious power saving reasons, is an effort to possibly reduce the OLED degradation (burn-in) effect.
Either way, although I certainly noticed out of the box that my 7.7 wasn't as bright as my Note (or even my GS2 for that matter!), I was never really bothered by it because (especially when you use movie mode) the colour reproduction is very accurate, and paired up with the contrast levels, it's still fantastic!
I guess, to me, white doesn't necessarily mean I need to put on a pair of sunglasses while looking at my screen lol!

I just wanted to know if the norm has lower white levels, what bothers me more is added sharpening on some images.

EarlZ said:
I just wanted to know if the norm has lower white levels, what bothers me more is added sharpening on some images.
Click to expand...
Click to collapse
Have you tried using the movie mode? Settings => Screen => Mode

Jade Eyed Wolf said:
Have you tried using the movie mode? Settings => Screen => Mode
Click to expand...
Click to collapse
I havent but id imagine thats gonna give a yellowish cast on the entire screen. I didnt get the tab yet as the store units I tried had very obvious screen problems. Gonna wait for a the next batch to arrive.

EarlZ said:
I havent but id imagine thats gonna give a yellowish cast on the entire screen. I didnt get the tab yet as the store units I tried had very obvious screen problems. Gonna wait for a the next batch to arrive.
Click to expand...
Click to collapse
Yellowish? Not at all! At least not with my unit anyway. Sure it makes the screen generally warmer in colour, but IMO, more than anything, it makes the colours look more accurate and natural.
Give it a try! You never know until you do...

Black Levels.. now White Levels, you are a very picky person EarlZ...

TeeeJaay said:
Black Levels.. now White Levels, you are a very picky person EarlZ...
Click to expand...
Click to collapse
Since when was it wrong to ask for more product information on what is the norm, if you've got nothing to contribute stay away instead of starting a flamebait.
Jade Eyed Wolf said:
Yellowish? Not at all! At least not with my unit anyway. Sure it makes the screen generally warmer in colour, but IMO, more than anything, it makes the colours look more accurate and natural.
Give it a try! You never know until you do...
Click to expand...
Click to collapse
Well ever since the Galaxy S changing the color mode to movie mode gives a yellowish cast, this is probably dependent on the calibration on the screen we get in the first place. I saw a friend's Tab7.7 the other day and his white levels were really brighter than my Galaxy Note. FWIW, its still a luck of the draw when it comes to color calibration on the screen. But thanks for that tip, when I'll purchase the Tab I'll make sure to also check out movie mode and see if it hits my requirements.

EarlZ said:
Since when was it wrong to ask for more product information on what is the norm, if you've got nothing to contribute stay away instead of starting a flamebait.
Click to expand...
Click to collapse
it was a friendly comment kababayan, you got it wrong

i have mine set to vibrant... rather like it like that.
it's just a shame it's SOOOO darn bright!
i cant use it t night!
even with screenfilter and other apps... no worky on amoled

FernandoMiguel said:
i have mine set to vibrant... rather like it like that.
it's just a shame it's SOOOO darn bright!
i cant use it t night!
even with screenfilter and other apps... no worky on amoled
Click to expand...
Click to collapse
Very bright noticed the same with the Note ,
Nexus was somewhat easier on the eyes at night,
But probably like you I like a very dim screen at night.
When the brightness is turned all the way down on the 7.7,
is any banding or other issues seen like many report on the Note?
Blacks are black I'm sure but how are greys that are near black.
On the Nexus they were fine, but on the Notes I seen they could have been darker?

Request: Someone with a White Note Please post a pix of it

if any of you have a digital camera and white galaxy note, can you please post a picture of plain white display (via LCD Test *#0*#) in low brightness. Please let me know. thank you all in advance.

Here you go. Hopefully the file attaches (I think it may be too large).
Oh, it looks like it may have downsized it. Let me know if you need more detail.

Is that dirt or a dead pixels on that image?
Sent from my GT-N7000 using Tapatalk

Must have been specs of dust. I checked just now and they're not there.

PAGOT said:
Is that dirt or a dead pixels on that image?
Sent from my GT-N7000 using Tapatalk
Click to expand...
Click to collapse
I bet you almost gave him a heart attack

LordManhattan said:
I bet you almost gave him a heart attack
Click to expand...
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hahahahahaha

Thanks a lot! Do you have a screen protector applied on top of that? I see something that looks like mura lines. I'm sure those are not mura lines but the way the camera was focused on the screen. Also that display brightness was set to the lowest, right?
It would be great to see more users contribute to this thread. I'm making a tally to convince myself to buy a White note. My black note was serviced several times due to screen issues, and am getting a refund. Not letting go of the note just yet.
netonyx said:
Here you go. Hopefully the file attaches (I think it may be too large).
Oh, it looks like it may have downsized it. Let me know if you need more detail.
Click to expand...
Click to collapse

don't know if my eyes are playing me, I do see a couple of horizontal lines, I don't know if that is due to the screen protector or the angle the picture was taken from, don't wanna scare you, but I am hoping that the next wave of batches have a better production like the S2.

The witch hunt continues
Sent from my GT-N7000 using xda premium

Always Positive...
However, you can definitely appreciate the fact that the White Note has a better display than the Black. Horizontal lines or not, they definitely display less on the White compared to the Black. Hope to see more pictures soon!

SAlmighty said:
Thanks a lot! Do you have a screen protector applied on top of that? I see something that looks like mura lines. I'm sure those are not mura lines but the way the camera was focused on the screen. Also that display brightness was set to the lowest, right?
It would be great to see more users contribute to this thread. I'm making a tally to convince myself to buy a White note. My black note was serviced several times due to screen issues, and am getting a refund. Not letting go of the note just yet.
Click to expand...
Click to collapse
No screen protector. And yes, I set the brightness all the way down before I took that photo.
I think if you're seeing a moire pattern it may be because of the difference in resolution between the reduced-resolution image and your monitor. I'm looking at the original photo in Photoshop and when I zoom in and out I see changing moire patterns at certain zoom levels, but don't notice anything when I look at it zoomed in at 100%, or even at 50%. And of course I don't see any moire pattern when looking at the phone itself.
Oh, and the brighter area in the lower left of the photo is my hand's reflection.
I do, however, see faint horizontal (vertical in this photo) banding on the screen when looking at the phone. I couldn't say whether it's any better or worse than the black/carbon blue version, as I've never seen one. I'd describe the banding as very faint, but visible if you're looking hard for it. And when looking at a blank white screen like this, I also have a general sense that not every part of the screen is quite the same level of brightness. Again, not major, but noticeable when looking at a solid white screen.

You'd need to reduce the brightness further with Screen Adjuster from the market. The basic brightness setting at 0% is probably only at 50% of what the screen is actually at. So you can go much dimmer to reveal the manufacturing process.
Learn to live with it. The marks don't affect the functionality of the screen. While I have noticeable marks on the bottom right half of the corner and vertical streaks, I don't let it deter me from enjoying this elegant piece of tech!

SAlmighty said:
However, you can definitely appreciate the fact that the White Note has a better display than the Black. Horizontal lines or not, they definitely display less on the White compared to the Black. Hope to see more pictures soon!
Click to expand...
Click to collapse
That is bollocks My new white 32 GB Note has a much worse display than my former two blue 16 GB. Think I gonna send it back so that the white has a better display is pure dreams

I just ordered my white note today. Looking forward to it arriving on my doorstep tomorrow!

guys make sure to turnoff AUTO ADJUST SCREEN POWER in display options.
i have black unit and i done lcd test on low brightness.no lines or anything.
if you have to download app to lower brightness even more to see defect.then something is wrong with u.because ur looking for reasons to find some kind of defect.everything is not perfect.if u cant see it on normal use,then its good piece.

I do not believe a Note with a good screen exists

Please prove me wrong!
Anyone have any links to videos showing a Note rendering dark grays correctly?

watch the demovideo on your note.

The dozens of reviews which acknowledge how good the screen is proves you wrong.

Pfffff. Tests with Samsung handselected devices. Or do you think that Samsung will send defectiv devices to the testers?

The note I got from bell has no screen issues at all.
Sent from my SGH-I717M using xda premium

Sarius24 said:
The note I got from bell has no screen issues at all.
Sent from my SGH-I717M using xda premium
Click to expand...
Click to collapse
you can see down to one in gammatest??
no black clipping??
no banding??
and: no dark blotches on a complete black picture in a dark room? (you have to see whole screen lightly lit (amoled cant go completely black), and let your eyes accommodate to the darkness!

SGN sucks on screen quality, its own spen scratch the "good" screen... really disappointed.

TML1504 said:
you can see down to one in gammatest??
no black clipping??
no banding??
and: no dark blotches on a complete black picture in a dark room? (you have to see whole screen lightly lit (amoled cant go completely black), and let your eyes accommodate to the darkness!
Click to expand...
Click to collapse
I dunno looks find like all my other phones.
Sent from my SGH-I717M using xda premium

I honestly havent went out of my way to find any issues with the screen.
The videos I have watched all look awesome..I did notice on some dark images there was some banding or whatever its called but thats all I can tell..
I'm not that great with colors so I may not notice as much but it looks great to me so far.

TML1504 said:
you can see down to one in gammatest??
no black clipping??
no banding??
and: no dark blotches on a complete black picture in a dark room? (you have to see whole screen lightly lit (amoled cant go completely black), and let your eyes accommodate to the darkness!
Click to expand...
Click to collapse
Mine is fine with some tweaks. Primarily -40% contrast. I can see down to '2' on that test image. I also notice little or no blotchiness in dark videos any more, although I did before adjustment.
It's a software issue IMO.

Hirudin said:
Please prove me wrong!
Anyone have any links to videos showing a Note rendering dark grays correctly?
Click to expand...
Click to collapse
I share the same sentiment as no one with a 'perfect screen' has shared it. The best I've seen is one w/o any black clipping what so ever since his gamma test result is similar to a Galaxy S2 but I do see a few visible horizontal lines on a grey screen. Its not perfect but its with in specifications aside from the lines.
Alexanderbooth said:
Mod Edit: Quote removed.
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To the unwise it may seem incorrect since they are only looking at the smaller picture and dont really have a clue on what this 'objective' test is for, let me give a real life example:
Using the Kindle application for reading ebooks gives you the option to use a black background now some screens have very visible blotches even if there is a text on the screen and they are become unoticeable when there is a text above them, this of course matters to someone who reads ebooks in their bedrooms w/o any external light source or to someone who watches movies like me. You see if we ask someone to open kindle and load up something and do this and do that, it makes the 'testing' more subjective rather than just test it in a pitch black room with a black image displayed.
These tests may sound silly to others but its the best way to get an objective result, remember people theres a difference between 'its not there' and 'i dont notice it with normal usage'.
here is an example that hopefully may enlighten you people with self proclaimed perfect screens so you may understand why its so difficult for others to accept such screen exists because with several replacements they havent seen one yet and people always claim that defects are the extreme minority, if its true then no one should need more than 2 replacements to get these perfect screens, correct?
It is also common for others to be dismissive of any screen related issues, you can be dismissive all you want provided you show an objective result. till then your screen is just as flawed as everyone else.

Mod Warning​
XDA Developers is about free exchange of information, everybody has there own opinion. Calling each other names is not acceptable, if you are unable to respond in a polite manner, then please dont post! This is the only warning you will get!
I have cleaned the thread!​

EarlZ said:
here is an example that hopefully may enlighten you people with self proclaimed perfect screens
Click to expand...
Click to collapse
Are those dark rings one of the issues that everyone is complaining about? If so, I'll have to look at my unit, but I suppose I've just been extremely lucky. I have yet to notice any issues. That's not to say there aren't any issues with my device (possibly), if I look really hard, in very specific conditions

I do not have any black blotches or whatever.
One of the issue I have is the gray screen. It has somesort of texture on it but it's tolerable since it looks like a texturized wallpaper. No problems with playing videos at all, everything looks crisp and clear. So far I am enjoying it.
Also, another issue is the camera. When I am around those long florescent lights, there seems to be some wavy things on my screen. Even on video. I guess I got to avoid those lights in taking pictures. Haha.

Jade Eyed Wolf said:
Are those dark rings one of the issues that everyone is complaining about? If so, I'll have to look at my unit, but I suppose I've just been extremely lucky. I have yet to notice any issues. That's not to say there aren't any issues with my device (possibly), if I look really hard, in very specific conditions
Click to expand...
Click to collapse
That Image i used came from the Tab7.7 forums which shows the issue and practical scenario at the same time. Its an example of the darker blotches in blacks, not really the main issue on the Galaxy Note but one of the many possible yet rare issue.
On my end, my first screen had some blotches but they were not visible when I watch a movie or read an ebook from the kindle app, the 2nd screen I had did have a home button sized like blotch at the bottom which was visible when reading ebooks unless a text is close to it, in movies/shows it is only visible when the entire screen goes black.

EarlZ said:
...
Using the Kindle application for reading ebooks gives you the option to use a black background now some screens have very visible blotches even if there is a text on the screen and they are become unoticeable when there is a text above them, this of course matters to someone who reads ebooks in their bedrooms w/o any external light source or to someone who watches movies like me. You see if we ask someone to open kindle and load up something and do this and do that, it makes the 'testing' more subjective rather than just test it in a pitch black room with a black image displayed.
....
Click to expand...
Click to collapse
after seeing your picture, i want to test my note. i use a small chamber without a window and close the door, so its absolute dark in there. i take a picture from the screen of my note while using kindle with background set to black. i use my lumix dmc-fx01 digicam to take the picture. am i just lucky with the screen of my note, or did i something worng while testing?

EarlZ said:
That Image i used came from the Tab7.7 forums which shows the issue and practical scenario at the same time. Its an example of the darker blotches in blacks, not really the main issue on the Galaxy Note but one of the many possible yet rare issue.
On my end, my first screen had some blotches but they were not visible when I watch a movie or read an ebook from the kindle app, the 2nd screen I had did have a home button sized like blotch at the bottom which was visible when reading ebooks unless a text is close to it, in movies/shows it is only visible when the entire screen goes black.
Click to expand...
Click to collapse
Once again, I guess I have been extremely lucky with both my Note and my 7.7, because I have yet to notice any of these issues with either

Black clipping and banding = software. Therefore, irrelevant from a hardware perspective.
The splotches that you see in the most dark of conditions are the artifacts of the manufacturing process. Under normal 0% brightness (without using additional apps like screen adjuster) you will not be able to see these things assuming you've got a good screen.
The only things you need to look out for is color unevenness and brightness unevenness and in some cases, the manufacturing process is so prominent that it seeps into the normal brightness (0% and up range) and it is visible.
The fastest way to tell if there is something wrong is to turn off all auto-lcd power management, set the brightness to 0%, and to simply pull down the notification menu and view it in a dark place. That'll reveal most of the problems that you might find in a day to day situation. If you see nothing there and the screen looks crisp, don't bother looking for more. They will not appear in normal real-world situations.

No blotches on mine. Very happy with the quality. The color profile seems nicer than on my i9100. The only screen I had with noticeable blotches (only seen at full darkness) was on my T989.
So ya, very happy with my Note's screen. White International N7000

The witch hunt started with the original sgs and continues with the note.
Im on my second note plus a screen replacement and screens are flawless. Yes there is somme banding on all of amoled screens. Its partially software because running ics alpha build, most of the banding is gone.
Sent from my GT-N7000 using xda premium