So I've been looking closely at my screen lately wondering if it might be defective. Gradients seem to look bad on all SGS phones, but the gradients on my phone seem to look extra bad. They don't just look banded, they look similar to JPEG artifacting as well.
Not only that, but in certain games there's almost a visible "film" over the screen, but under the glass. The best way I can describe it is an unchanging group of lines or artifacts on top of the actual screen itself. This is quite noticeable in person, but is probably going to be hard to see in the video I post due to the fact that I'm recording a screen. My suggestion is to take a look at the bottom left-hand corner. It's most noticeable there.
The image I posted I just noticed today. On the Netflix login screen, the red beside the email and password boxes is a lot brighter than the rest of the red. This is significantly more noticeable at low brightness, but still noticeable at regular brightness where I took the picture.
Is this normal or do I have something wrong with my screen?
Thanks!
EDIT: I took another video and another picture where everything is far more apparent.
Video: http://www.multiupload.com/YF6AMEBLMD
Video 2: http://www.multiupload.com/1RZJM7A598
Posted a new picture and video where the problem is much more apparent.
Related
Hello XDA,
I've searched around for this problem a bit, and it seems this issue hasn't been brought up anywhere. If it has, then I apologize.
The S2 has an awesome display with great colors, blacks included, but I noticed this issue one night when I was watching a film on my S2. When the display is showing black/dark images you can clearly see what appears to be glue smudges all over the screen, especially along the rims. It is only noticeable when there's little to no other light in the surrounding environement. Increasing brightness seem to worsen the problem.
It is hard to describe and very difficult to capture on camera but I made an attempt. I can't post links yet it seems but here's an imageshack url:
img842.imageshack.us/img842/5420/blotches.jpg
The image was taken with a Canon 450D with 20 sec exposure (hard to focus when it's that dark I'll tell you). Edited slightly in photoshop to cut down the size.
Here you can see the general color of the screen (gray-ish) and some of the blotches of (what I'm guessing is) glue in the back. If I had to guess I suspect the blotches might come from the capacitive touch layer of the screen. Is this an issue or is it to be expected on phones like these? It's not a major problem but it's actually quite annoying when you're watching a film/youtube clip/playing a generally dark game or whatever. Should I return my device? I've used it for just about a week and a half.
Thanks in advance for any help.
i have this too, its the AMOLED display. you can turn the screen off and on and you'll see it go off n on. not the sgs, but amoleds generally. my omnia HD had this too (1st gen AMOLED)
the blacks are not 100% black i say
Im having this too, nothing to worry about this as it doesnt disturb the beautiful display of this mobile.
I just got my refurbed Tab yesterday. I've owned many tablets over the last year, but I've never experienced a soft kind of glowing effect on dark parts of the screen (like in a dark scene in a video, or even the bottom control bar) when viewed at any angle at all. The image almost becomes difficult to see unless you're looking straight ahead. I only notice this when there's little to no ambient light in the room (which is when 90% of my tablet usage is- reading or watching a movie in bed).
I compared with my touchpad in the same scenario and while there was a *very* slight glow, it wasn't nearly as bad as on the gt 10.1.
I found next to nothing on Google about this. Does anyone else get this, or do I possibly have a bad refurb? It's a shame because I'm completely in love with it otherwise...
neags23 said:
I just got my refurbed Tab yesterday. I've owned many tablets over the last year, but I've never experienced a soft kind of glowing effect on dark parts of the screen (like in a dark scene in a video, or even the bottom control bar) when viewed at any angle at all. The image almost becomes difficult to see unless you're looking straight ahead. I only notice this when there's little to no ambient light in the room (which is when 90% of my tablet usage is- reading or watching a movie in bed).
I compared with my touchpad in the same scenario and while there was a *very* slight glow, it wasn't nearly as bad as on the gt 10.1.
I found next to nothing on Google about this. Does anyone else get this, or do I possibly have a bad refurb? It's a shame because I'm completely in love with it otherwise...
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Is it coming from the sides? If so, it's LCD screen bleed. It unfortunately happens with backlit LCD panels. It doesn't appear to be too common with the Tab as I haven't seen it mentioned before. I'd send it in for repair while it's under warranty. They changed the screen design in October and you'll get it back with a better display then it has currently.
Please use the Q&A Forum for questions Thanks
Moving to Q&A
No, it's not from the sides. There's no bleeding. It's on the screen itself. It's almost like kind of a ghostly white glow on top of the dark colors on the screen. A shimmering effect, maybe? I'm not sure how else to describe it.
neags23 said:
No, it's not from the sides. There's no bleeding. It's on the screen itself. It's almost like kind of a ghostly white glow on top of the dark colors on the screen. A shimmering effect, maybe? I'm not sure how else to describe it.
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if possbile post the screenshot.
Hm. I guess i'm not explaining it well.
While it is on the screen itself, it's only when you tilt the device to the viewing angle isn't straight on.
Here's a thread from a different forum discussing it:
http://hardforum.com/showthread.php?t=1546595
There are also youtube videos showing it, like this one:
http://youtu.be/-eA2IjlotJU
I just compared my G-Tab with an ASUS Transformer, and it was still there on the Transformer, but not as bad as the G-Tab.
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?
Hey guys, I've never posted here, I mostly just lurk and try to learn things.
My question is a bit difficult to explain but I'll try my best. Do me a favor and take a photo while completely covering the camera lens, then view the photo in the gallery. Make sure youre in a dark room and viewing the photo in full screen, wait a second for the back and task manager buttons to turn off as well.
Is your picture completely black or are the outside edges and corners fuzzy and white almost?
My previous phones are Galaxy S1, 2, 3 and 4 along with the Note 3 (which I miss :/ ) never had a problem like this, I do believe some GS2s had a similar problem with the screen being spotty in black images.
thanks.
redline06 said:
Hey guys, I've never posted here, I mostly just lurk and try to learn things.
My question is a bit difficult to explain but I'll try my best. Do me a favor and take a photo while completely covering the camera lens, then view the photo in the gallery. Make sure youre in a dark room and viewing the photo in full screen, wait a second for the back and task manager buttons to turn off as well.
Is your picture completely black or are the outside edges and corners fuzzy and white almost?
My previous phones are Galaxy S1, 2, 3 and 4 along with the Note 3 (which I miss :/ ) never had a problem like this, I do believe some GS2s had a similar problem with the screen being spotty in black images.
thanks.
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Hello there, I did a test for you on mine, when i was in my room with my lights on but completely covered the lens and mine came out fuzzy. It seems that the s5 camera is very powerful picking up the slightest bit of light !
Then I turned off the lights in my room and did the same test, this time it was pitch black.
Did you try turning all your lights off in your room?
Thanks for your input, my initial test was in a room with the lights off. Looks so bad :/
redline06 said:
Thanks for your input, my initial test was in a room with the lights off. Looks so bad :/
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I noticed that with my camera too. The exact same thing happens to me too when I cover the camera, in both lighted and unlighted rooms. But I'm pretty sure it's normal. When your ISO is on auto, you'll notice that the camera turns up the ISO past what you can manually set it at (800). So since they're bumping up the ISO so high (probably ~1600 in dark areas), there's going to be considerable amounts of noise, even with very low light.
You can see for yourself that if you compare auto ISO and ISO 800 in a dark room, the latter will be much more pitch black like you expect it to be.
On a Verizon gs4 I've had issues with black's being displayed since doing a screen replacement. The darkest areas of the screen appear more pixelated or appear to tear at the edges. I've used another screen to test but with the same results. I've also changed ROMs, several times, with a full wipe in between with no changes. Im wondering if this maybe a problem with the connector or the mobo itself. However, is there a way to check the display pin connector for correct volts and what would those be? Any assistance or tips would be awesome! Thanks
Picture of screen when opening Netflix attached
That photo is correct. The grey pixels are shading. At least from what I know
Sent from my SCH-I545 using Tapatalk
Video screencap
Perhaps that wasn't the best example image. I've attached a few screens you'll notice the dark areas almost losing resolution. Doesn't happen on same video source on diff device... stumped