I am getting banding/gradient issues with Poweramp. I have taken photos to show this. It can be seen with low brightness. Try in a dark room with auto brightness.
Can other A5 2016 users confirm?
Hello. This isn't an issue from Poweramp or any software. This is an issue with OLED displays, your Galaxy A5 2016 having a Super AMOLED panel from Samsung. OLED = Organic Light Emitting Diode. OLED displays doesn't require backlit like LCD does for creating images, in fact, OLED pixels produces their own light and colors, thus they have perfect black levels and viewing angles. Because the display is made by organic compounds, it may degrade overtime. I have the same smartphone as yours and the screen is degraded a bit from factory - when I purchased the phone the screen had screen deformity, it is noticeable only on dark grey background.
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And yes, Galaxy A5 2016 has 24-bit color depth = 16 million colors like every other smartphone.
DefiantPotato64 said:
Hello. This isn't an issue from Poweramp or any software. This is an issue with OLED displays, your Galaxy A5 2016 having a Super AMOLED panel from Samsung. OLED = Organic Light Emitting Diode. OLED displays doesn't require backlit like LCD does for creating images, in fact, OLED pixels produces their own light and colors, thus they have perfect black levels and viewing angles. Because the display is made by organic compounds, it may degrade overtime. I have the same smartphone as yours and the screen is degraded a bit from factory - when I purchased the phone the screen had screen deformity, it is noticeable only on dark grey background.
---------- Post added at 03:23 PM ---------- Previous post was at 03:21 PM ----------
And yes, Galaxy A5 2016 has 24-bit color depth = 16 million colors like every other smartphone.
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I see so the problem lies in the hardware. I didn't suspect it would be a hardware issue as my device is only a week old. Can you test this attached image on your Galaxy A5 2016 and see if you can see the gradient/banding on the top near the status bar? Make sure your brightness is low in a dark room. The background is fully black on my galaxy S6.
Edit: I see the gradient/banding at the top of the screen but if I rotate my phone landscape, it is also there. So I don't think it is to do with my screen. The lower the brightness, the more visible it is.
idkwho said:
I see so the problem lies in the hardware. I didn't suspect it would be a hardware issue as my device is only a week old. Can you test this attached image on your Galaxy A5 2016 and see if you can see the gradient/banding on the top near the status bar? The background is fully black on my galaxy S6.
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Hmm, I see, that's because your home screen is not really black. Touchwiz launcher use a shade of grey at the status bar for visibility of icons on colored/white wallpapers. Weird thing is I see a grey shade below the status bar, maybe your weather widget that you don't use has a shade of dark grey or your wallpaper is not fully black. Try Nova Launcher and go to settings, Look and feel and untick Transparent Notification Bar (If you use a black wallpaper).
DefiantPotato64 said:
Hmm, I see, that's because your home screen is not really black. Touchwiz launcher use a shade of grey at the status bar for visibility of icons on colored/white wallpapers. Weird thing is I see a grey shade below the status bar, maybe your weather widget that you don't use has a shade of dark grey or your wallpaper is not fully black. Try Nova Launcher and go to settings, Look and feel and untick Transparent Notification Bar (If you use a black wallpaper).
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Alright I've taken actual device screenshots within Poweramp. I think it may have to do with Samsung color calibration rather than my screen.
Please try these on your device first in portrait mode then switch to landscape mode. With low brightness and dark room. That will rule out anything to do with the actual screen.
Maybe they use same color profile on their pentile and apply to the rgb-stripe on A5 causing problems?
Your Poweramp uses gradient theme. What are you trying to tell me? If you look at a solid dark grey image on your display, you will not see it in one color, you will see some uniformity because of the uneven OLED burn. This is an issue with lots of OLED displays even if the phone is new.
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The color profile of the display is set default as Adaptive Display. You can change it to SRGB in Settings > Display. I set mine on SRGB because I like to see the real colors, not fake rainbow colors, and btw, Samsung displays are very accurate (if you use SRGB mode).
DefiantPotato64 said:
Your Poweramp uses gradient theme. What are you trying to tell me? If you look at a solid dark grey image on your display, you will not see it in one color, you will see some uniformity because of the uneven OLED burn. This is an issue with lots of OLED displays even if the phone is new.
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The color profile of the display is set default as Adaptive Display. You can change it to SRGB in Settings > Display. I set mine on SRGB because I like to see the real colors, not fake rainbow colors, and btw, Samsung displays are very accurate (if you use SRGB mode).
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I have taken photos of my galaxy s6 and galaxy a5 2016 to compare and show you what I mean. It should be almost black but A5 2016 has a huge block of "grey" instead - look at the knobs for example.
This isn't an issue with the screen. If the color is not fully black, it is not shown as pixel turned off.
Ok I found out it is to do with the color calibration settings. It has something to do with the contrast and gamma settings.
I used this to compare:
http://www.lagom.nl/lcd-test/black.php
My A5 2016 I can see the third square onwards while the S6 I can see from about 6 square.
Not an expert but the s6 has a better GPU. With a 24 bit screen and 32 bit GPU 3D applications could show artifacts without anisotropic filtering and other features that require a good GPU. Could be anti aliasing and dithering. I have artifacts with gray backgrounds on the A5 2016.
Bryan48765 said:
Not an expert but the s6 has a better GPU. With a 24 bit screen and 32 bit GPU 3D applications could show artifacts without anisotropic filtering and other features that require a good GPU. Could be anti aliasing and dithering. I have artifacts with gray backgrounds on the A5 2016.
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Perhaps it could be the GPU. If you try and open one of the attached images of my screenshots do you see the same grey box as the one outlined above? Though I think it has to do with the color calibration. of the A5 2016.
idkwho said:
Perhaps it could be the GPU. If you try and open one of the attached images of my screenshots do you see the same grey box as the one outlined above? Though I think it has to do with the color calibration. of the A5 2016.
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I can see those boxes with auto brightness and the lights off, not visible with max auto brightness. I guess whites become gray to reduce the brightness further. Banding artifacts are visible from min to max manual brightness on all pictures, except the s6, aliasing and bloom, but it's a photo. I can understand artifacts with gradients on a 16 bit screen but artifacts appear with plain gray. Artifacts appear with adaptive, cinema, photo, basic, and this version.
AP : A510FXXU3BPID
CP : A510FXXU3BPI1
CSC : A510FOXY3BPI2
Bryan48765 said:
I can see those boxes with auto brightness and the lights off, not visible with max auto brightness. I guess whites become gray to reduce the brightness further. Banding artifacts are visible from min to max manual brightness on all pictures, except the s6, aliasing and bloom, but it's a photo. I can understand artifacts with gradients on a 16 bit screen but artifacts appear with plain gray. Artifacts appear with adaptive, cinema, photo, basic, and this version.
AP : A510FXXU3BPID
CP : A510FXXU3BPI1
CSC : A510FOXY3BPI2
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I have done some more researching and there is definitely something wrong with the gamma. Here are a few threads I found with the same problem:
http://forums.androidcentral.com/t-...-black-clipping-gamma-issue-galaxy-notes.html
https://forum.xda-developers.com/tmobile-galaxy-note5/help/pixelated-black-screen-t3207440
There is a problem with displaying gradients (they should be distinguishable by their number but mine shows them as the same shade). I have attached the image for you to test.
also have this on my a5 16, is there no fix for it?
picaadi said:
also have this on my a5 16, is there no fix for it?
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Same I am still looking for a fix. We need to let Samsung know about this maybe they can fix it with an update. It is most likely a problem with gamma settings of the A5 2016 that have plagued Samsung Galaxy Notes up until even the Note 5 which I have linked in this thread.
idkwho said:
Same I am still looking for a fix. We need to let Samsung know about this maybe they can fix it with an update. It is most likely a problem with gamma settings of the A5 2016 that have plagued Samsung Galaxy Notes up until even the Note 5 which I have linked in this thread.
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Yeah, hope nougat fix it or a quicker update, really bothers me 2, how can we notify samsung?
I've tested this issue on multiple units and this issue occurs on all of them around 0-10% brightness (Auto-brightness off). I've tried to notify Samsung through the developer forum and waiting on a response.
idkwho said:
I've tested this issue on multiple units and this issue occurs on all of them around 0-10% brightness (Auto-brightness off). I've tried to notify Samsung through the developer forum and waiting on a response.
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Thx idkwho, hope samsung will do something about it,
The problem clearly is on all a5 16 phones.
I encourage all A5 2016 owners with this issue to send an email to [email protected] and make them aware of it. The more people emailing the better.
Same issue on J2 2016 but not J2 2015
Related
I noticed that when I turn my brightness down my phone gets a purplish tint but it goes away as the brightness goes up. Is this because its special type of LED screen or the over saturation of colors?
can you post some pics please?
Normal for AMOLED screens. They tend to get a red tinge to them when they dim down.
staulkor said:
Normal for AMOLED screens. They tend to get a red tinge to them when they dim down.
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Alright I guess the technology isn't perfect yet definently not a deal breaker
I was wondering why the light grey look pink in gmail app
I see it as well. A little annoying, but not a giant problem. The blazing speed of the phone kinda makes up for it.
does anybody of you also noticed this thing: http://www.nexusoneforum.net/forum/nexus-one-tech-issues-bug-reports/1199-amoled-display-issue.html ???
eug89 said:
does anybody of you also noticed this thing: http://www.nexusoneforum.net/forum/nexus-one-tech-issues-bug-reports/1199-amoled-display-issue.html ???
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I did notice this as well. Some of the red pixels on the edges of text seemed to have drifted a little too far from the body of the glyph. I actually thought the same thing as this poster - sounds like they need to tweak their "subpixel LCD text" algorithms to match the different layout of the OLED screen.
I'd add to his analysis that subpixel LCD text algorithms typicall employee adjustments for the non-linear response of the pixels (steps of brightness near the dim end of the scale are not the same perceived size as steps of brightness near the bright end of the scale) and OLED may not only have different non-linear response, but it may have different response in each of its R, G, and B pixel elements...
This all should be tweakable in software and is bound to be improved as OLED screens gain popularity.
Yo.
I'm still wondering if my S5 screens is as good as it's supposed to be. I have 2 major concerns, screen uniformity and purple trails.
I come from an ancient S1, and nothing of this happened. I have attached a single color pic that shows clearly how screen have a soft gradient from top to bottom on my phone. When I put basic colors (RGBYWB from test modes or apps) nothing of this is apparent at all, and screen looks gorgeus, but this color and some other grays show what I'm talking about. I would be grateful if you load the pic in full screen mode and tell your impressions. Offscreen shots would be welcome too.
Also, about the purple trails when moving on screen pitch blacks, it affects every screen or only some unfortunate ones? S1 never show anything similar. Max bright reduces it, but nor completly.
Greetings.
http://www.lagom.nl/lcd-test/black.php
I've always used the above link for testing how accurate my displays are. The tests on that site I've found most important in descending order are black level, white saturation, and contrast. (the gamma calibration test never seems to work well on phones)
The Axon 7 (A7) is my first AMOLED display. My old phone is the Nexus 5 (N5) with an IPS display.
On the black level test, squares 1-6 all blend with the black background on the A7, while the N5 only loses square 1 to the background. On white saturation, the A7's last visible square is 251, while on the N5 I can see up to 253. Finally, on the contrast test the A7 colours start at 2-3, with red and pink washing out the soonest at 21. On the N5 all the colours are visible at 1, and red and pink wash out at 25.
Through all these tests it seems the stock A7 AMOLED display is over saturated with poor contrast. On the stock ZTE firmware, the only display adjustments are in settings under "screen effects". Mine is set to Natural and Warm, but all settings here do not affect the test results.
I've read that after many complaints, OnePlus updated their firmware to give the OnePlus 3 special RGB calibration tools. Are there any apps that could do similar corrections on the Axon 7? Any rooted apps, or would CyanogenMod correct this?
It's becoming quite obvious when browsing photos or watching video, and especially takes away from the experience in dark movies.
If you're colorblind, please disregard this thread. Rate this thread to express how you deem the color saturation and accuracy of the 's display. A higher rating indicates that you think that color accuracy is very high and saturation is excellent.
Then, drop a comment if you have anything to add!
I just received my Mate 20 Pro today from Carphone Warehouse.
What can I say.
The colours are very washed out and "Cold". I know you can adjust the colour temperature in the settings, however even the warmest colours doesn't match the colours of my S8 Plus.
I'm not too sure what to say but I'm a bit disappointed that the colour options are so limited.
You compare this screen to the screen of the S8 Plus and you'll understand exactly what I mean.
A bit disappointed to be honest.
YakuzaNeko said:
I just received my Mate 20 Pro today from Carphone Warehouse.
What can I say.
The colours are very washed out and "Cold". I know you can adjust the colour temperature in the settings, however even the warmest colours doesn't match the colours of my S8 Plus.
I'm not too sure what to say but I'm a bit disappointed that the colour options are so limited.
You compare this screen to the screen of the S8 Plus and you'll understand exactly what I mean.
A bit disappointed to be honest.
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Just dont compare it... use it for 3 days without comparing and you will adjust... i had the same with my old nexus 6p and i realised the screen was worn out. „White“ looked like bluelightfilter on.... i had never noticed before.... its all a matter of adjustment s8 is not the holy grail of screens especially when over a year old... oled screens contain organic material and it ages/wears out
Amazing, go and watch some HDR content on youtube, you will see the screen come to life! I think they were conservative with the display profile, not too much saturation until you fire up HDR content.
I think I'm having problems with my display.
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When having a grey colour on screen the right edge has a green haze.
Anyone?
luisfftomas said:
I think I'm having problems with my display.
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When having a grey colour on screen the right edge has a green haze.
Anyone?
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Im having some darker bars across the screen (horizontal /portrait) top is brighter than button.
It is visible in a dark room/at night only with a dark grey wallpaper.
I compared S9 plus with and on s9 plus the grey wallpaper looks even.
The mate 20 pro screen is a touch dimmer than s9 plus.
The screen otherwise looks great
edward78 said:
Im having some darker bars across the screen (horizontal /portrait) top is brighter than button.
It is visible in a dark room/at night only with a dark grey wallpaper.
I compared S9 plus with and on s9 plus the grey wallpaper looks even.
The mate 20 pro screen is a touch dimmer than s9 plus.
The screen otherwise looks great
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It seems most are suffering with this. Unless it's really severe I'm not sure Its worth getting in a panic over. Only seen in a dark room, lowest brightness on a grey background. So not something that's gonna crop up often imo
Reuben_skelz92 said:
It seems most are suffering with this. Unless it's really severe I'm not sure Its worth getting in a panic over. Only seen in a dark room, lowest brightness on a grey background. So not something that's gonna crop up often imo
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To be honest, there's no way i will ever use the screen so dim, its barely visible in dark. My only fear is not to get worse after a while, but again there is a warranty.
How can i upload a photo?
Just for the record, I used Display Calibration by Apps Ladder app and I think it improved the overall Mate 20 Pro experience.
Display Test
it4repair said:
Just for the record, I used Display Calibration by Apps Ladder app and I think it improved the overall Mate 20 Pro experience.
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Hello, Please test for black crush or shadow clipping. Thank you
Having the same issue with my mate 20 pro. Came from an S8 plus and I'm highly dissapointed about the screen, colors too white and washed out. Anybody else know's how to fix this? Is it a real problem or just a matter of personal preference?
Hi,
I just got my new OnePlus 6T. My previous phone was Galaxy S8. On low brightness when I scroll the screen I can see huge glitches (dark purple?) when the picture goes from black to color. Is that normal ? I see this only in low screen and dark pictures/objects.
Typical effect for AMOLED screens.
Yeah very normal. The level of black crush etc is good on this screen
The 5T has this effect more than the 6T as far as I can tell. Definitely a normal thing for these OLED screens though.