[Q] Ripples on SGS2 Screen when on low brightness - Galaxy S II Q&A, Help & Troubleshooting

Dear Friends,
I have noticed something on my SGS2. When I have it on low brightness and I view an even colored background I see impurities (ripples) in the screen. They don't come from the application or site I am viewing but from the screen itself. Does this have something to do with the AMOLED display. Do you have similar experiences when you view the screen with for example 15% brightness. ?
Thank you

Shouldn't be there. Exchange it.

Most of the devices have these lines you mention. Unfortunately.
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I see this new device .... usualy on gray color low brightness
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You can try comparing it with a phone of a friend or the one in the shop. Usually on low brightness AMOLED+ screens have ripples, lines, flaws of varying degrees. On regular to high brightness it's not visible.
If you're on warranty you can try having it exchanged if it really bothers you.
Good luck.

If it's normal I won't worry anymore thanks for your help So always. This community is so great

Related

[Q] SGS 2 - low light reveals screen defect?

There are a few threads out there that have touched on this issue but none as far as I can see that deal with it directly.
The problem comes when you display a pure black screen in low light conditions. It shows that the AMOLED screen is actually grey / blotchy / cloudy instead of being pure black. Initially I thought mine had fingerprints or smudge marks on it, until I realised they were behind the screen. I guess I might have got a phone with a screen that was replaced, but the amount of people who have also reported a similar issue leads me to believe that it might be a manufacturing default? The blotches / clouds on the screen dont change, but exhibit a random formation as one would expect from a defect. It is also possible to see a very faint outline of light running along 3 edges of the screen.
Naturally this is a situation that doesnt reveal itself very often. But I as I use my phone a lot at night, especially reading ebooks or watching films, you start to notice it more and more where you have large expanses of empty black screen.
What I would like to know is how many people have got screens that exhibit this behaviour and how many of you have sent them in for service or had them replaced?
Is it a common issue and something that is to be expected from this type of screen?
You can test if yours has this problem using 'Screen Test' (its free) from the market place. It cycles through solid colours and patterns every time you touch the screen.
Just do it in bed with all the lights out P), give your eyes a few seconds to adjust and see what your screen looks like displaying pure black.
I'm very interested in everyone's experiences and any input or information you have.
Thanks everyone in advance!
ps: I came from a ZTE blade (OLED) which has a uniformly dark grey background when displaying pure black. I kinda expect this as it is a budget phone (albeit with a better than budget screen), but I didnt expect the SGS2 to be quite as bad.
Use "screen adjuster" from the market and set contrast to -60
i have never seen this black low light screen defect. but i am asking you people if any of you have noticed that ugly blurry shadows which are perfectly visible with low light, on white backgrounds especially. they look like marks above the actual display and make high quality images look like low resolution.. it is annoying as hell..
I have this. Noticed it one night when my phone was switched off and charging.
Sent from my GT-I9100 using XDA App
I also have this, noticed the first evening i used the phone...you can notice this during the screen wake delay, or when in a call if you cover then uncover the proximity sensor...don't know if it's a defect but sure it bugs me, i know many won't notice it and will say they don't have this...i will add that if u look carefully to the screen dimmed at lowest brightness in a low light (buy not dark) environment, like early morning, you'll see some "interferences" behind the image, also the darker/yellower left half screen is still visible in these conditions
These things shouldn't be there in a 500€ phone
Sent from my GT-I9100 using XDA App
Thanks for the feedback already.
@elmerendeiro: I have also noticed some 'interference' lines on my phone from time to time. I did a bit of research and it seems when your phone's brightness is set around 25 - 30% it picks up interference from either the wifi or 3g radio. Notch the brightness either above or below this level and you wont see it anymore.
I agree with you when you say we shouldn't be having these problems on such an expensive phone.
It bugs me too - if it wasnt for this i'd have to say it would be an amazing phone
Might give the Samsung service center a call and see if its something they're aware of and if they are replacing screens with this problem?

Samsung galaxy s3 dead pixels?

Hello
I'm new to android and just bought my s3 so forgive me if it's a stupid question
Whenever I watch a movie, there are two or three black spots. I feel like they are dead pixels. It doesn't show up on a white background nor on my ics inspired background but now I notice it a lot during a movie especially if it's a dark colored movie(darkness and all). Are these dead pixels? Is there a display app which I can use to display pure different colors and find out?
Thanks in advance
Sent from my GT-I9300 using XDA
Spots? If what you are describing look like smears on the screen then no, I think this is an unfortunate defect with oled devices when black is viewed in really dark environments. My phone (not an s3 but uses amoled) exhibits the same problem and my PS Vita shows it very prominently.
A dead pixels is just a pixel (pretty much a dot on the screen) that is stuck in 1 color no matter what's being displayed onscreen.
There's a test screen, just dial *#0*#
However the black spots on dark background when your screen is on minimum brightness (e.g. in darkened rooms) are well-known issues plaguing AMOLED.
There are several threads around here describing them and their possible cause, and at least one developer has announced working on a screen tweak solving this and other typical AMOLED issues.
Yeah it's only noticeable on dark backgrounds with low brightness. I downloaded display tester and ran the dead pixel test and the smears were only noticeable if I looked super hard during a black background, not in blue or red or yellow nor gray. So no dead pixels right ?
Also thank you so much !
Sent from my GT-I9300 using XDA
omgbuffguy said:
Yeah it's only noticeable on dark backgrounds with low brightness. I downloaded display tester and ran the dead pixel test and the smears were only noticeable if I looked super hard during a black background, not in blue or red or yellow nor gray. So no dead pixels right ?
Also thank you so much !
Sent from my GT-I9300 using XDA
Click to expand...
Click to collapse
If you didn't notice any stuck dots, then your phone is good. As for the smears, pretty much everyone has them. I guess you have to be extremely lucky not to have them (that, or you just haven't noticed them yet so it doesn't bother you). The software solution pointed out above sounds interesting though. Will be watching that
About Dead/Stuck pixel on OLED Device Display
I have a S3 GT-9300 that I use daily, the other day I dropped it on a hard surface and a single shiny green stuck pixel appeared on the bottom left corner of the display, it was a bit of an eye sore really, But I'll share my simple FIX if its a related problem like mine was
I thought if the drop caused it, then a related solution may fix it, so I simple activated display and went to the home page.
then I turned the display facing my palm and held the device carefully at the top end and slapped it several times hard into the palm of my hand where the pixel problem area was. then stuck pixel went away...
I hope this works for you too :good:

Is my Super AMOLED busted or something?

So i've heard that the S-AMOLED and S-AMOLED Plus technology has "Perfect" Blacks! Like the Blacks don't even "Light-up".
Is it true? Or is it just a marketing thing? :/
Try this and tell me what do u have?
Turn off all the lights in the night and then view some BLACK picture. U'll see that the Blacks are kinda "Greyish" :/
And there are some pixels that are perfectly black.. but they're just Random... :/
known "issue" on lowest screen brightness
Ohk.. So its not "Completely Black".
theres also another problem with it aswell... When I view some pitch black picture in a completely dark room. I see some small rectangular shapes that are "Pitch Black" in that Greyish background. I cant snap a picture of that unfortunately but u kinda get the idea. Can someone try this with there own S3 and report me? :/
It'll be quite helpful
Is well known issue.
http://forum.xda-developers.com/showthread.php?t=1703086
Sent from my GT-I9300 using xda app-developers app
Mine does the same thing: darker black splotches when viewing a black picture on the dimmest screen setting in a dark room.
Fortunately I don't often find myself looking at all-black images in the dark. It's hardly a major issue.
this issue is quite common, even on iPads, Motorola etc...apparently it is the adhesive within the layers of the AMOLED that causes an "ink" mark when screen displays black images within a dark environment...nothing is actually wrong with your scren, mine has 2 very small dots...while my other friend has had his replaced because the issue was far more prominant...so there is a possibility of claiming warranty? but this will depend on the country/retailer/etc...but always worth giving it a shot if you cant stand this issue...but yes, earlier batches, the issue was far more obvious...but later ones are better but information from other XDA threads suggest that you WONT find a unit without any marks...period.

Different screen quality!

Okay so I have a S6 Edge in Black Sapphire 64GB from pre order and date on box is 03/19/2015 made in Vietnam and I got a Gold Platinum 64GB edge today date on box is 04/05/20015 made in Vietnam so compared both screen and the gold seems brighter on all setting and color seems better on gold here are some pics I know this has been brought up before but here are several pics what do you guys think!
Same display modes?
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Yes same display modes and settings I'm wondering if it's because the black has two weeks of use and gold is brand new.
Sent from my SM-G925T using XDA Free mobile app
I now have an M9 because of the very problem you listed. The black edges have screen issues. I went through several at the store and they all looked yellow and low quality.
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jdunker26 said:
I now have an M9 because of the very problem you listed. The black edges have screen issues. I went through several at the store and they all looked yellow and low quality.
Sent from my 0PJA2 using XDA Free mobile app
Click to expand...
Click to collapse
I've got a black edge and my screen is flawless. I actually received 2 edges and both are great, one just had scratches on it.
All of the Edges I looked at had scratches and dull screens. They also had the auto brightness issue. Great phone besides those things.
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My biggest gripe with the edge is the uneven tone across the screen. Going into to best buy in two weeks to swap for a unit from a new batch. At least I hope. One would think that they'd have a new batch in two weeks b
Sent from my Samsung GS6edge
Get it replaced !
Well I'm sending the black one back due to the light scratches and the gold platinum is my replacement which I'm keeping it has no scratches screen is better and overall the phone feel snappier I don't know if it's possible or just me and this gold platinum looks really good compared to that black blueish color!
Sent from my SM-G925T using XDA Free mobile app
Same here got black and my wife have gold one, when gold is on half brightness is the same as i got on full so will go to three for replacement. When restarting the phone screen on three logo is going to full brightness for one second than back to dim after.
outsiderdj said:
Same here got black and my wife have gold one, when gold is on half brightness is the same as i got on full so will go to three for replacement. When restarting the phone screen on three logo is going to full brightness for one second than back to dim after.
Click to expand...
Click to collapse
Make sure you have auto brightness of on both when your comparing because it could be the phone's ambient light sensors reacting different to the lighting conditions.
Sent from my Samsung GS6edge
outsiderdj said:
Same here got black and my wife have gold one, when gold is on half brightness is the same as i got on full so will go to three for replacement. When restarting the phone screen on three logo is going to full brightness for one second than back to dim after.
Click to expand...
Click to collapse
So same with you the gold seems to have better screen
Sent from my SM-G925T using XDA Free mobile app
Hopefully this is just because the black units seem to have been produced the earliest. Fingers crossed newer batches will fix everything.
Sent from my Samsung GS6edge
The thing with the different screen qualitys is also one thing, which i have noticed.
In berlin we have a samsung store, where we were able to get our hands on the s6 and s6edge some weeks before release.
On all those models which i tested and compared there, the s6 edge had a "bluer" white than the s6, which had a more "yellower" white. In direct comparison the screen and especially white backgrounds seemed much much better on the s6 edge. Yes it was a bit blueish, but the s6's white was more a sand tone, not white at all.
But on those devices in normal electro stores right now, its the opposite. There are defenitely the final models represented and on those, the s6 now had a better white.
Strange strange.
One more thing which i realised is, that under sunlight, the screens white seemed much better than under low light situations. Yes it is the adaptive display setting, but it switches from a very good white (slightly blueish) to a yellowish white in darkness or worse light situations. Maybe it has to do with the thing that a warmer white is better for the eyes in dark situations, but it is still anoying because i defenitely prefer the blueish white..
What is clear is from even the most thorough reviews of screens, is that the S6 edge can't be set to maximum brightness on manual settings alone. On both auto and manual settings, maximum brightness can only be achieved when in high light levels. This can be easily demonstrated by shining a phone torch on the ambient light sensor. Even when set to highest brightness, with auto brightness set to off, if you place a torch light over the ambient light sensor, the screen brightness increases and becomes very bright.
It has been suggested that the Gold Plantinum units have brighter screens than the black sapphire units. I wonder if the intense reflection of light off the highly reflective platinum versions, results in an increased light level around the ambient sensor, which results in the higher screen brightness of the Platinum version, in what appears to the human eye to be identical surrounding light levels. Probably a crazy suggestion and of course this can be easily disproved by using a torch light above both phones ambient light sensors!
What is a fact is that turning up to maximum brightness with auto off does not reach the highest brightness levels unless the ambient light sensor is detecting the phone is being exposed to high levels of ambient light. Screens will differ, as they do are often sourced from more than one supplier or factory.
---------- Post added at 11:58 PM ---------- Previous post was at 11:51 PM ----------
Remember brightness is one indicator of screen quality but by all means not an indicator of a better screen. Resolution, colour reproduction, refresh rates etc are all other key factors. So just because yours is brighter doesn't necessarily mean better.
It could also be that an ambient light sensor is defective, thus resulting in the phone increasing the brightness of the phone display as a result of incorrect information from the ambient light sensor. The pictures in this review were not taken in extremely bright light, so apit's possible, that the black sapphire phones ambient sensor could be correctly detecting the light levels, resulting in correct adjustment of screen brightness. The Gold platinum phones ambient light sensor, may not be working correctly, resulting in information that results in screen brightness being above those desired for the actual ambient light levels being experienced by the phone.
Whether you agree with it or not, it is a fact, that even with auto disabled, the ambient light sensor still plays a role in determining how bright the screen gets!
The screen was not only brighter but the colors were different shades too so this is not just about brightness.
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Honestly considering returning my edge to best buy and getting the regular s6. That would give me a renewed 2 week return window and then maybe trying the edge again after that two weeks because the screen at the very least should be pleasing to look at and right now I'm just not pleased.
Sent from my Samsung GS6edge
I have a black or dark bar across the top quarter of the edge screen and when I put a white screen on it's very visable anyone else have this?
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pifsworld said:
I have a black or dark bar across the top quarter of the edge screen and when I put a white screen on it's very visable anyone else have this?
Sent from my SM-G925F using XDA Free mobile app
Click to expand...
Click to collapse
I have heard people mention this similar problem but no one posted a picture before.
I have s6 edge gold 64gb and a 32gb gold s6. The edge has very noticeable darker screen, dimmer colours and dirtier whites. Pissed off as the edge has the better cpu, runs 4c cooler and produces better benchmarks... But it's going back. Screen bugging me
Shame as the battery life is incredible

Thoughts on the screen quality

Just received by OP2 today. Initial thoughts are that it looks and feels very similar to OPO but the screen is a definite step backwards. Colors seem washed out, and even at full brightness it is dimmer then my S6 at ~40% brightness. Viewing angles also seem poor.
In my mind this is a bigger issue than lack of NFC or quick charging. The screen is the one thing you're constantly looking say on a phone, not some feature. It almost seems like the screen on this phone was an afterthought.
Sent from my SM-G920T using Tapatalk
Looks great here.
Coming from Note 5 it looked a little washed out at first. I've changed wallpaper to a bright one and not as bad.
I'm still happy with the screen.
U have to use it and it's never gonna match up to a nexus 6 or an s6 as they had QHD but I've had my op2 over a week now and it's great just go on zedge and load some wallpapers..
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AMOLED screens have infinite contrast which makes them bright and punchy. Going back to just about any LCD it will look washed out.
KCAL COLOR PROFILE Amoled Style:
Colors: 255,255,255
Saturation: 285
Hue: 0
Display: 255
Contrast: 264
Gamma: 0
Much better!
IMO screen of OPT is a vast improvement compared to OPO.
Sent from my ONE A2005 using Tapatalk
Yes the screen is washed out compared to my note 5....not surprising really given the technology. However the more annoying screen issue is the constant dimming of the screen when darker screens are presented even when the adaptive brightness is off. The screen is constantly fluctuating and it bothers the heck out of me. Might need to use a custom rom just to get rid of it. Or sell the phone. Whichever comes first. Haha.
I'm disappointed as well, coming from the OPO. The lack of color tuning - no, that placebo slider in O2 2.1 doesn't do anything - leaves the screen with a too low gamma and too high color temperature, resulting in washed-out and cool-looking images. Stock OPO wasn't that great, but at least could be tweaked. No, I'm not looking for the overhyped Samsung AMOLED look that people equate with proper color rendition. I'm a photographer and all you need to do is put the same photos up on a computer monitor - even a business grade one - as on the phone to see how lackluster it is. By itself, it doesn't look terrible, but it's clearly not accurate.
I've got my opo2 yesterday and:
1. Screen is yellowish on the bottom! I read about it before, it was opo1 issue, but it seems to be opo2 issue too :////
2. Yeah, colors are washed out as hell comparing to my last phone - Samsung Galaxy s4 (but now white is white at least ) . Btw Is there any way to set contrast and saturation like on opo1? Why they don't include it for opo2 rom?
I compare the screens of my OP1 and OP2 and i need to say that is yellowish con OP2, isn't pure white and thats a very fault, i think that of warm colors.
Enviado desde mi A0001 mediante Tapatalk
fonebone2 said:
Just received by OP2 today. Initial thoughts are that it looks and feels very similar to OPO but the screen is a definite step backwards. Colors seem washed out, and even at full brightness it is dimmer then my S6 at ~40% brightness. Viewing angles also seem poor.
In my mind this is a bigger issue than lack of NFC or quick charging. The screen is the one thing you're constantly looking say on a phone, not some feature. It almost seems like the screen on this phone was an afterthought.
Sent from my SM-G920T using Tapatalk
Click to expand...
Click to collapse
rascal0pl said:
I've got my opo2 yesterday and:
1. Screen is yellowish on the bottom! I read about it before, it was opo1 issue, but it seems to be opo2 issue too :////
2. Yeah, colors are washed out as hell comparing to my last phone - Samsung Galaxy s4 (but now white is white at least ) . Btw Is there any way to set contrast and saturation like on opo1? Why they don't include it for opo2 rom?
Click to expand...
Click to collapse
Have either of you tried the 2.1 update with the new cool/warm display slider? Curious if that helped at all.
bhake said:
Have either of you tried the 2.1 update with the new cool/warm display slider? Curious if that helped at all.
Click to expand...
Click to collapse
Well, not at all... Unless I slide it 100% to the right, then whole screen is yellowish and bottom part is even more :/
I'm hearing many complaints about the screen from folks who haven't removed the factory pre-installed hazy plastic screen protector, either because they don't realize it's there or if they do don't imagine it makes much difference. Captain Obvious' pro-tip : take it off, the difference is huge (or YUGE if you're from Brooklyn).
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