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Hey xda forum!
I just bought the awesome phone, desire, but i noticed that my screen is blue-greenish tint, compared to my friends Desire. I think i can live with it, but is there anything to do? i've searched for this problem and found that the samsung vibrant also has this problem.
what can i do, is there any way u can change the setting of ur display? turning brightness up helps, but outside, my friends desire is easier to see/read compared to mine.
You may have it set so that brightness is Auto,
Settings > Display > Brightness
It was set to auto but that really look awful
So it is on full brightness now
Sent from my HTC Desire using XDA App
ninjaijutsu said:
It was set to auto but that really look awful
So it is on full brightness now
Sent from my HTC Desire using XDA App
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the amoled screen does have a blue tint, from what i beleve blue led's die out really quickly, Samsung on purpose made the screen to over display blue, and as time goes on, the blue will die to a yellow. So if your phone is more blue today, it will last longer tomorrow. also Samsung tunes all of their displays (TVs and all) towards the bluer end of the spectrum because it gives the display a higher apparent brightness because our eyes perceive bluish white as being brighter than yellowish white even with no actual brightness difference.
AndroHero said:
the amoled screen does have a blue tint, from what i beleve blue led's die out really quickly, Samsung on purpose made the screen to over display blue, and as time goes on, the blue will die to a yellow. So if your phone is more blue today, it will last longer tomorrow. also Samsung tunes all of their displays (TVs and all) towards the bluer end of the spectrum because it gives the display a higher apparent brightness because our eyes perceive bluish white as being brighter than yellowish white even with no actual brightness difference.
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thanks for the info, that actually good news followed up on ur info and read about it on wiki.
i guess thats the only way they can expand the life time of old amoled displays.
back to auto brightness
I just bought my desire and have same problem ad u guys. I accepted the fact that blue had a low lifespan, but was still trying to hunt for a solution. After dl many brightness apps I found, Brightness profiles. I started playing around to change the brightness and notice some weird flickness. Example at 74 % it was more "yellow" than on 75%. At 96 % had less blue tint than 100 %. I could see it clear under no light before I went to sleep. So I guess they are defect but Ye, that's my workaround cuz I'm too lazy to return the phone and I like the cool tint now, or well it got better
The reasons why I purchased a Tab S 8.4 were its awesome screen quality and high grade processor. For the later, the poor touchwiz optimization and the average gpu led to disappointing results. But well, the screen IS awesome !
Or is it ?
At first, I was truly impressed. But after some web browsing and reading e-books, something felt wrong with the colors homogeneity. On white backgrounds, the right part of the screen in portrait mode would tend towards a yellowish tone, while the left part would tend toward purple tones. Nothing obvious, but quite annoying when noticed.
After trying around with different backgrounds, it become more obvious with certain colors. The one used in settings background for example: The left side of the screen is deep blue, the right part is much lighter.. and greener.
Further investigating the issue, I figured it is most obvious when watched in the darkness and using dark colors: RBG such as R:0, G:10 , B: 20 or even R:20, G:10, B:0
Did anyone else notice similar issues ? Would you guys mind trying to create a R:0, G:10, B:20 (#000A14) background and check the result on your tab S in a low light environment ? On mine, it results in an obvious gradation from dark blue to green.
Attaching some pictures. The rendering is not the best especially in the darkness, but the issue remains clearly visible.
There is something very wrong with your screen. Return it.
suzook said:
There is something very wrong with your screen. Return it.
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I second that, that is not normal
I concur with the others, get it replaced.
AMOLED screens can fail for any number of reasons (pixel death is the main one) , if yours is showing problems get it replaced now rather than live with it and have a more serious problem later.
We've seen this yellow color issue reported by a few others. Looks like Samsung let a few diseased horses out of the barn. I concur with the others. Return it.
Thanks for your feedback, guys.
I'd like to highlight the fact this issue goes completely unnoticed in most scenarios. A friend I showed it on white background didn't notice it at all, in movies/games/pictures I don't see it at all. I only felt it while reading, and even then it was not obvious, just a persistant feeling that led me to further testing.
Only the extremely dark colors seem to be affected, and even then it's only noticeable in the darkness. I will go back to the store tomorow and exchange it for a new one, but I'm wondering if the issue isn't widespread and simply went under the radar as its effect is hardly noticeable in 99.9% of the situations.
Did anyone else check at an homogenous R:0, G:10, B:20 image in the darkness with their tab ?
I personnally used Moon+ Reader's background color settings for testing purpose, pretty easy to set up.
New Tab S, same issue
I changed my Tab S 8.4 today for a brand new one. Same test, same issue: the background is still not homogeneous. The issue is visible in the darkness on dark colors such as the one used for the settings menu, which seems naturally gradated from deep to lighter blue on my screen.
Could someone else test and reproduce the issue on their tab ?
I have tried to reproduce what you're seeing on my 10.5 and honestly I can't. I'm not going to say the white is always 100% pure white but it's close enough. At the same time I'm trying to avoid looking for something that's not there for my Tab.
ukael said:
I changed my Tab S 8.4 today for a brand new one. Same test, same issue: the background is still not homogeneous. The issue is visible in the darkness on dark colors such as the one used for the settings menu, which seems naturally gradated from deep to lighter blue on my screen.
Could someone else test and reproduce the issue on their tab ?
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Maybe you can go into Settings / Accessibility / Vision / Color Adjustments and see if your calibration is off. There is a test there where you arrange tiles by color gradation and it adjusts your screen. I am having none of the issues you mentioned, but my 10.5 Tab also passed that test with no color adjustments required. Give it a try.
mitchellvii said:
Maybe you can go into Settings / Accessibility / Vision / Color Adjustments and see if your calibration is off. There is a test there where you arrange tiles by color gradation and it adjusts your screen. I am having none of the issues you mentioned, but my 10.5 Tab also passed that test with no color adjustments required. Give it a try.
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Test completed successfully. The calibration is fine, and the issue is not noticeable during the test. The issue is actually not noticeable in most usages, I only see it on homogenous very dark color backgrounds (the 10% darkest colors), and while in a dark environment myself. In most common usages, the screen looks fantastic and flawless.
Unfortunately, I often use my toys in my bed in the darkness. AND I am concerned about a possible defect that would get worse over time.
That said, tests on similar colored backgrounds on other AMOLED screens (PS Vita, Galaxy SII) lead me to think this could be a global issue with AMOLED.
Unfortunately, I often use my toys in my bed in the darkness.
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Lol, to those of us with a perverse sense of humor we would refer to that as a hanging curveball.
Whatever issues you are experiencing I would take that over LCD light bleed any day.
ukael said:
Test completed successfully. The calibration is fine, and the issue is not noticeable during the test. The issue is actually not noticeable in most usages, I only see it on homogenous very dark color backgrounds (the 10% darkest colors), and while in a dark environment myself. In most common usages, the screen looks fantastic and flawless.
Unfortunately, I often use my toys in my bed in the darkness. AND I am concerned about a possible defect that would get worse over time.
That said, tests on similar colored backgrounds on other AMOLED screens (PS Vita, Galaxy SII) lead me to think this could be a global issue with AMOLED.
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Dear Friend. Like you I am very sensible in that point. I have a lot behind me and I can tell you, that homogeneity is something we can not expect from all types of modern displays, except the pro ones with a special function that takes care about this issue. Any screen has such issues, the question is just what type of and the intensity differs. The lower the light in our environment the more sensible our eyes get. The longer we stare into the screen the better we see all color details. Worst case scenario is a totally darkened room. Your eyes won´t get more sensible than in such a situation. Especially AMOLED displays will show the strangest kind of irregularities you would never see normally. I remember the Tab 7.7 -- in a dark room the screen was over and over covered with black circles. Wow ! The Vita shows strange textures instead. It is horrible.
My advice to you would be to start trying to avoid using your tablet or any display in a dark room. Turn a light on, it will be nice for your brain and eyes and you will not see the described things. It´s just a matter of habit, nothing else. You will get used to it and probably feel very well with it. Anyway there will still be the green haze.... Not to talk about the yellowish etc. stuff.
I returned the Tab S for a MiPad and it´s much better, really nice homogeneity (compared to other actual devices).
I had 4-5 iPad Mini Retina and all of them have horrible yellowish/blueish tint.
I had 4 iPad Airs, 3 were horrible in a similar way, now the 4th one is okay, I finally had luck.
I had 2 Galaxy 12.2 - the first one yellowish in a quarter, the second has just a slight, short yellow stripe on the bottom border.
I had a Kindle Fire HD + HDX - both with bad, ugly green spots at borders and corners. Also partially yellowish.
Once I held a Galaxy Tab 3 in my hands that was actually flawless. I was shocked. It never happened again. Was from a classmate.
Today I guess it was a mistake since I could not test in in a home-at-night-environment.
I checked dozens of Tablets in big stores here - guess what I found ???
Look at the iMacs .... Horrible yellowish tint. Horrible. It´s a shame.
I use my Tab S 10.5 in a dark room with some regularity. I've never experienced any of these odd artifacts you guys are discussing. My black screen is just black. Colors look right. White is white. I think its a fallacy to claim that all amoled screens face these issues. The amoled screen on the Tab S is the best most advanced amoled screen ever created. Problems from older devices shouldn't apply here.
Please remember based upon other user input, Samsung did seem to have a run of defective screens on these tabs they put out.
Here's a quick video test taken in a pretty dark room (it's daytime here). As you can see the screen is just black. There is absolutely no reason to avoid viewing your Tab S in a dark room. If you are not seeing the solid black I have demonstrated in this video I suggest exchanging your possibly defective unit.
ukael said:
Did anyone else check at an homogenous R:0, G:10, B:20 image in the darkness with their tab ?
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In my experience 100% of AMOLED displays exhibit this behaviour, i.e. both Tab S 8.4 I've had! The first one (exchanged because of unhappy whites) had it so obviously that it looked like a diagonal gradient fade to one corner. The second tablet shows it as a slightly patchy screen, see attached photo which looks worse than the reality.
This is only visible in a completely dark room with the display set to its darkest (or close to), displaying a very dark image (my photo is of the spec. you mentioned - hence blue/green colour). To show this I needed to use an exposure of about 1 second, if you use less the image will appear black, likewise (probably) if you try to capture it as a video using normal ISO values in camera, the camera won't pick up the background.
Armpowered said:
In my experience 100% of AMOLED displays exhibit this behaviour, i.e. both Tab S 8.4 I've had! The first one (exchanged because of unhappy whites) had it so obviously that it looked like a diagonal gradient fade to one corner. The second tablet shows it as a slightly patchy screen, see attached photo which looks worse than the reality.
This is only visible in a completely dark room with the display set to its darkest (or close to), displaying a very dark image (my photo is of the spec. you mentioned - hence blue/green colour). To show this I needed to use an exposure of about 1 second, if you use less the image will appear black, likewise (probably) if you try to capture it as a video using normal ISO values in camera, the camera won't pick up the background.
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All I can say is that is seriously messed up. My screen looks nothing like that and just as pitch black as in my video. Considering black pixels in amoled screens are basically turned off, they should be utterly and completely black and devoid of light. Am I misunderstanding and your picture is of a blue background?
All other dark colors should be solid without strange light effects as well.
mitchellvii said:
All I can say is that is seriously messed up. My screen looks nothing like that and just as pitch black as in my video. Considering black pixels in amoled screens are basically turned off, they should be utterly and completely black and devoid of light. Am I misunderstanding and your picture is of a blue background?.
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It's daytime for me at the moment but yes from memory, if you display an actual black image then it will appear as black, you see this effect when trying to display an image that is almost black, at very low levels of light output the (my!) panel isn't even.
The attached image is R0 G10 B20 and on my PC looks black - it isn't I just used "ColorPic" to check the screen colour and it shows those values.
It's not a big issue but does appear when using in fully dark room with brightness turned down, I notice it in some apps that have very dark background colours (which you'd assume were black and see as such in daylight, but aren't).
Obviously under these circumstances an LCD would appear as a (relatively) bright grey !
Armpowered said:
It's daytime for me at the moment but yes from memory, if you display an actual black image then it will appear as black, you see this effect when trying to display an image that is almost black, at very low levels of light output the (my!) panel isn't even.
The attached image is R0 G10 B20 and on my PC looks black - it isn't I just used "ColorPic" to check the screen colour and it shows those values.
It's not a big issue but does appear when using in fully dark room with brightness turned down, I notice it in some apps that have very dark background colours (which you'd assume were black and see as such in daylight, but aren't).
Obviously under these circumstances an LCD would appear as a (relatively) bright grey !
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OK I'm a bit confused. The image you attached looks either black or very very dark gray on my screen. No color variation at all. Oh well
mitchellvii said:
OK I'm a bit confused. The image you attached looks either black or very very dark gray on my screen. No color variation at all. Oh well
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Same on my tab in daylight, it only appears patchy when in a very dark room with brightness turned right down. Maybe amongst the variations some will be perfect?
Armpowered said:
Same on my tab in daylight, it only appears patchy when in a very dark room with brightness turned right down. Maybe amongst the variations some will be perfect?
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Still beats LCD light bleed
Hello ..., is there any way to tweak the white balance ? I just got my tablet, it' s amazing by the way, but i want to make the white color a little bit cooler! Thanks!!
johnpaok said:
Hello ..., is there any way to tweak the white balance ? I just got my tablet, it' s amazing by the way, but i want to make the white color a little bit cooler! Thanks!!
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It is possible by adjusting color temperature by by available yet atm
ykkfive said:
It is possible by adjusting color temperature by by available yet atm
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Can you explain to me how i can do the adjustment?
Do i need to root the tablet or from the menu? (The only tweak i found from menu is the color profiles : amoled basic, amoled cinema, etc) I have a sony xperia phone and it has an option to adjust the white balance with a slider!
Thanks..
johnpaok said:
Can you explain to me how i can do the adjustment?
Do i need to root the tablet or from the menu? (The only tweak i found from menu is the color profiles : amoled basic, amoled cinema, etc) I have a sony xperia phone and it has an option to adjust the white balance with a slider!
Thanks..
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needs kernel support, so be patient and wait until someone make it
Today I got two 8.4 Tabs, both wifi only versions in my hands and I was impressed, that the white color was different. Sadly, the whites on mine were a little bit more yellowish, warmer, and a little bit dirtier. Is this normal for samoled?
Frantic_kr said:
Today I got two 8.4 Tabs, both wifi only versions in my hands and I was impressed, that the white color was different. Sadly, the whites on mine were a little bit more yellowish, warmer, and a little bit dirtier. Is this normal for samoled?
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my experiences tell not all screens produce the same color, some are yellowish, while others are slightly blue, which can make white color a bit grey, etc
once i wanted to buy a note2 but i found its so bluish and therefore no deal
so each time I buy a phone, esp amoled, I will check the screen (and other things of coz) before I pay
I currently have 2 Galaxy Tab has 10.5 inch at home and deciding which one to keep. The main difference between the two is that one has a newer build date and love one screen seems to be a little more orange brown tint to the white versus the other tablet seems to be a little more blue yellow intent. Other than that perform identically however I did notice that when I run the CPU temperature app that the one with the yellow blue tinted screen seems to run a few degrees cooler most of the time except when using Chrome when where the other tablet seems to run several degrees cooler but only when JavaScript is activated.
One little trick in addition to adjusting the temperature using the adaptive display were changing from AMOLED basic to Evelyn cinema to make it cooler, is to go into the accessibility settings and then go into divisions section and then go into the area where one can do a test of their color as if they needed adjustments because of their own visual impairment. If you run that test and intentionally miss order the color tiles, and then will activate the option to allow you to adjust a slider which can further give you A white screen that seems to be somewhere in between the really blue display and the really warm AMOLED basic
Sent from my SM-N9005 using Tapatalk
Old thread i know but i just wanted to thank you for that tip Canadoc. I've been struggling with the excessively warm image from my Tab S for a year now and while putting it into "Cinema" mode fixes the white balance it also destroys the contrast by making all subtle dark detail just disappear. This accessibility method has given me much nicer whites without affecting the contrast other than removing the orange haze. I assume the colours are going to be slightly different now but i can't say i've noticed anything there. I wish the Tab S had the same display options as the Galaxy S5 has where you can choose the cooler white level without hammering the contrast too. Maybe it's something Samsung do in order to protect the lifespan of the blue sub-pixel?
So thanks again
When the tab s 8.4 came out the screen quality was a bit variable, but it's been months since I have have read of anybody having a problem, see if you cab get a replacement.
John
Tinderbox (UK) said:
When the tab s 8.4 came out the screen quality was a bit variable, but it's been months since I have have read of anybody having a problem, see if you cab get a replacement.
John
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Mine's the 10.5 and this is the second one i got which was exactly the same as the first one in screen tone.
I always wondered if third-world country`s got B-C grade stock, as the consumer protection can be poor or non-existent, maybe it`s cheaper for the re-seller to buy this lower grade stock with screen color problems ect, I dont know?
John.
Tinderbox (UK) said:
I always wondered if third-world country`s got B-C grade stock, as the consumer protection can be poor or non-existent, maybe it`s cheaper for the re-seller to buy this lower grade stock with screen color problems ect, I dont know?
John.
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UK here and bought from John Lewis. I've heard plenty of issues with screen temp on these ones so it's fairly common. Just using it this morning and thinking it perhaps wasn't quite as white as i'd like it and checked the settings to see if it was still in the proper mode and it was, switched it back to the old one and don't know how i ever lived with that brown tone!
Under different light sources it can take a few minutes for your eyes to adapt to the screen, so white can look a little off while this is happening, as the human eye will normally auto white balance anything you look at.
Does you screen when browsing with a white background at night, but not totally dark still not look perfectly white after a few minutes of looking at the screen.
Everybody seems to see colors slightly differently, and some not so slight, did you see the white/gold blue/black dress debate.
http://www.independent.co.uk/news/s...er-you-see-says-a-lot-about-you-10074490.html
John.
Shriker said:
UK here and bought from John Lewis. I've heard plenty of issues with screen temp on these ones so it's fairly common. Just using it this morning and thinking it perhaps wasn't quite as white as i'd like it and checked the settings to see if it was still in the proper mode and it was, switched it back to the old one and don't know how i ever lived with that brown tone!
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Tinderbox (UK) said:
Under different light sources it can take a few minutes for your eyes to adapt to the screen, so white can look a little off while this is happening, as the human eye will normally auto white balance anything you look at.
Does you screen when browsing with a white background at night, but not totally dark still not look perfectly white after a few minutes of looking at the screen.
John.
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No it never looks like clean white to me unless i tilted it slightly back or forward and then i could see the tone shift to a cooler temp. I do keep the brightness down to under 10% most of the time and that doesn't help the white level either.
I can't say i ever understood the dress image, you can factually measure and define the colour on that one so i don't know why people were confused.
Have you had anybody else check your screen, do they see the same problem, though at 10% brightness the screen is never going to look really white, I always keep mine on Auto -5 , I have the RGB sensor set on Auto i cannot even remember what it`s really called as i have never changed it, but in Auto it is supposed to keep the whites looking white, what is yours set too.
John.
Shriker said:
No it never looks like clean white to me unless i tilted it slightly back or forward and then i could see the tone shift to a cooler temp. I do keep the brightness down to under 10% most of the time and that doesn't help the white level either.
I can't say i ever understood the dress image, you can factually measure and define the colour on that one so i don't know why people were confused.
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Warm colours
My tab s 8,4 screen has a brownish layer, which makes whites mor brown and the colours less sharp. But when I put pressure on my tab, the "layer" goes away.
Tinderbox (UK) said:
Have you had anybody else check your screen, do they see the same problem, though at 10% brightness the screen is never going to look really white, I always keep mine on Auto -5 , I have the RGB sensor set on Auto i cannot even remember what it`s really called as i have never changed it, but in Auto it is supposed to keep the whites looking white, what is yours set too.
John.
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Sorry for not getting back to you earlier, car knocked the phone pole down and been without for 12 long days. *sigh*
Anyway, i haven't had anyone else look at mine but i don't need anyone to anyway, it's a very overly warm tone. I've never used the RGB adaptive sensor thingy as it only works in a few apps that i never use anyway.
---------- Post added at 01:48 AM ---------- Previous post was at 01:46 AM ----------
ozkarorv said:
My tab s 8,4 screen has a brownish layer, which makes whites mor brown and the colours less sharp. But when I put pressure on my tab, the "layer" goes away.
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Do you see a much whiter tone when you choose Cinema mode? If so and you like it then you really should try the method in this thread to keep it without also cranking up the contrast.
I have noticed this issue since two firmware updates but i usually dont use night mode much that is why did not post anything regarding this.
When the nightmode is on and the brightness level is low lets say around 20% , the pixels are not really off when the bg is black (settings menu/qs). But when the brightness is increased above 40% the pixels go off and ive a true amoled bg.
Does anyone else have this issue?
bobandar said:
I have noticed this issue since two firmware updates but i usually dont use night mode much that is why did not post anything regarding this.
When the nightmode is on and the brightness level is low lets say around 20% , the pixels are not really off when the bg is black (settings menu/qs). But when the brightness is increased above 40% the pixels go off and ive a true amoled bg.
Does anyone else have this issue?
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yes, its the problem off one UI dark mode not A50 problems!
try good lock to make ur bar!
Mahdi2000 said:
yes, its the problem off one UI dark mode not A50 problems!
try good lock to make ur bar!
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That can be but it is completely black amoled on my s9+. Maybe software update can fix it in the future. Not a major bug though, just wanted to know if the problem was common.
bobandar said:
I have noticed this issue since two firmware updates but i usually dont use night mode much that is why did not post anything regarding this.
When the nightmode is on and the brightness level is low lets say around 20% , the pixels are not really off when the bg is black (settings menu/qs). But when the brightness is increased above 40% the pixels go off and ive a true amoled bg.
Does anyone else have this issue?
Click to expand...
Click to collapse
Mine is just simply not true black, but I can only see it when I boost the brightness. But to be fair, samsung doesn't really promise a true AMOLED black as they say it's just so it's easier on the eye at night (dark/low light) ambient. But yeah, it'd be better to have a true AMOLED black in night mode.
amrazing33 said:
Mine is just simply not true black, but I can only see it when I boost the brightness. But to be fair, samsung doesn't really promise a true AMOLED black as they say it's just so it's easier on the eye at night (dark/low light) ambient. But yeah, it'd be better to have a true AMOLED black in night mode.
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Mate, it is true amoled back on flagship devices after s8, i had a true amoled black on my s9+ no matter at what level my brightness was set.
bobandar said:
Mate, it is true amoled back on flagship devices after s8, i had a true amoled black on my s9+ no matter at what level my brightness was set.
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Well then it sucks. What's the point of having an AMOLED display if the software won't let us have its advantages
amrazing33 said:
Well then it sucks. What's the point of having an AMOLED display if the software won't let us have its advantages
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Yes , exactly my point
Its named night mode and not dark mode maybe its different
Yep, I agree, however I don't notice any difference depending upon brightness level.
bobandar said:
Mate, it is true amoled back on flagship devices after s8, i had a true amoled black on my s9+ no matter at what level my brightness was set.
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Yeah its also amoled black on my a7 2018 and a50 except for the normally white parts in the ui but its okay like most of the ui is still pure black its not like the whole screen is grey
There is s little fix guys. See this video
https://youtu.be/Y398_v3DRkI
Theres no large difference in mah consumption between completely dark mode (pixels off) and dark theme.
To me it seems black parts are true black/turned off. On any level of brightness is the same.
No I think Samsung did it intentionally.. because true black is way more susceptible to burn in.. you can't have UI elements being turned off all the time that would result in very bad burn ins to text and Icones..
Still thay made it dark enough so you won't notice it
And another thing it's the opposite of what you said when the brightest is low it turns off and when it's high it becomes very dark gray technically black but not off.
Also you can't design a decent looking gui if all elements are pure black.
Guys try good lock app via which the notification panel can be adjusted to colors we want
baraa_a_awwad said:
No I think Samsung did it intentionally.. because true black is way more susceptible to burn in.. you can't have UI elements being turned off all the time that would result in very bad burn ins to text and Icones..
Still thay made it dark enough so you won't notice it
And another thing it's the opposite of what you said when the brightest is low it turns off and when it's high it becomes very dark gray technically black but not off.
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That's not how burn in works. Burn in occurs at the pixel level. A pixel that's on all the time will burn at the regardless of the colors of the surrounding pixels (black, grey, or whatever)
felixdd said:
That's not how burn in works. Burn in occurs at the pixel level. A pixel that's on all the time will burn at the regardless of the colors of the surrounding pixels (black, grey, or whatever)
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Every burn in is different from another.. basically the higher the contrast the worst the burn is
baraa_a_awwad said:
Every burn in is different from another.. basically the higher the contrast the worst the burn is
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I think maybe you're confusing contrast with brightness? Again, burn-in occurs at the pixel level, when a pixel cannot return to its initial relaxed state, and is not dependent on whether the pixel beside it is on or off.
https://en.wikipedia.org/wiki/Screen_burn-in#Plasma,_LCD,_and_OLED_displays for a very brief primer
bobandar said:
I have noticed this issue since two firmware updates but i usually dont use night mode much that is why did not post anything regarding this.
When the nightmode is on and the brightness level is low lets say around 20% , the pixels are not really off when the bg is black (settings menu/qs). But when the brightness is increased above 40% the pixels go off and ive a true amoled bg.
Does anyone else have this issue?
Click to expand...
Click to collapse
Hello, on my galaxy a50, there is a similar effect, only at a brightness close to the minimum, a gray gradient appears, part of the screen becomes gray and part black. When you increase the brightness to about 40 percent, the color is aligned. At the same time, the black color remains black on the lock screen at any brightness.
Man I hate OLED lottery.
Does anyone else have this issue? It's something similar to this:
https://forum.xda-developers.com/oneplus-7t/help/green-tint-issue-oneplus-7t-t3986231
I'm debating if I should exchange it or just keep it, it's only noticeable at low brightness
vwite said:
Man I hate OLED lottery.
Does anyone else have this issue? It's something similar to this:
https://forum.xda-developers.com/oneplus-7t/help/green-tint-issue-oneplus-7t-t3986231
I'm debating if I should exchange it or just keep it, it's only noticeable at leow brightness
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I have the same effect in original Youtube app. It is just a bad background gradient in the application. Don´t blame the phone....
When I open Messenger with black background and grey status bar at the top of the app in the same brightness level, there is no greenish effect.
I am also having uniformity issues. Very noticeable, unfortunately. As there are no 512GB Ultras available anyway ATM, O will just have to live with it for the moment. Maybe I get used to it...
buddy66 said:
I have the same effect in original Youtube app. It is just a bad background gradient in the application. Don´t blame the phone....
When I open Messenger with black background and grey status bar at the top of the app in the same brightness level, there is no greenish effect.
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mm weird, I see it in every single app with dark grey background, even in settings (w/Dark mode on), the bleeding is a lot bigger from the top right corner.
EDIT: Just checked the messenger app (FB messenger) and background is completely black so most pixels are off except for the letters and gray search bar but bleeding wouldn't be noticeable.
vwite said:
mm weird, I see it in every single app with dark grey background, even in settings (w/Dark mode on), the bleeding is a lot bigger from the top right corner.
EDIT: Just checked the messenger app (FB messenger) and background is completely black so most pixels are off except for the letters and gray search bar but bleeding wouldn't be noticeable.
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I've just checked it with Gmail since it is also a Google application and you can notice the bleed when the lights in the room are turned on and I try to cover the top of the phone to see it. After turning the lights off, whole app is equally gray so in my opinion it is just an optical illusion. If I recall well the AMOLED displays use some kind of dimming (tinkering with the frequency) in order to reach a lower point of the brightness that is not noticeable for human eye. Probably this can be seen when covering a gray part of Google apps in a room that has another not so bright light source.
buddy66 said:
I've just checked it with Gmail since it is also a Google application and you can notice the bleed when the lights in the room are turned on and I try to cover the top of the phone to see it. After turning the lights off, whole app is equally gray so in my opinion it is just an optical illusion. If I recall well the AMOLED displays use some kind of dimming (tinkering with the frequency) in order to reach a lower point of the brightness that is not noticeable for human eye. Probably this can be seen when covering a gray part of Google apps in a room that has another not so bright light source.
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I made a picture. It is showing a 5% gray test pic and supposed to be uniform. It is easy to see and I was kind of shocked when instantly noticing it the first time I was using it in the dark. Settings and many parts of the dark one UI are using grays in that range.
Anybody else? If it is rare, it will be worth pushing for an exchange.
corwin_amber said:
I made a picture. It is showing a 5% gray test pic and supposed to be uniform. It is easy to see and I was kind of shocked when instantly noticing it the first time I was using it in the dark. Settings and many parts of the dark one UI are using grays in that range.
Anybody else? If it is rare, it will be worth pushing for an exchange.
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I did the same test, I'm attaching a picture of my Note 10+ and the S20 Ultra side by side. Uniformity seems a lot better on the note 10+, however on white background the Note 10+ turns more red when I slightly tilt it while the S20 Ultra seems to shift colors a lot less and still white overall.
Still not sure if it's worth the hassle to return.
Ok, the fact, that it looks very much like mine can be good and bad ?
Could you please check, if is different at 60Hz? For me, it is clearly different.
corwin_amber said:
Ok, the fact, that it looks very much like mine can be good and bad
Could you please check, if is different at 60Hz? For me, it is clearly different.
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Oh wow, you're right! I set it to 60 hz and QHD+ and uniformity on the gray test got noticeable better, still some green on top right corner and around the punch hole but noticeable less. I love reaaally 120 hz during normal use though.
Thanks for confirming, same here. I wonder, if this is something, that can be fixed in software... And if the rumoured 'dynamic refresh raze' update might change things.
Could please note people check their Ultras displays?
Same here with my s20 more visible at 12hz refresh rate with dark theme
Damn it, ok, then I really hope that it is fixable... Weird.
I am using smiled displays since Symbian Nokias, never had one, where I noticed it so much.
I remember all the Mate 20 Pros with LG screen had this issue buy way worse in some cases
https://www.google.com/search?q=mat...JtXpfSDsL9sQXomrbgDQ&rlz=1C1CHBF_enUS731US731
In some cases they were normal during the first days but the problem evolved until the display was unsusable in low light conditions, hope the same won't happen to our phone during the next weeks.
yeah I don`t have this issue I did the screen test in Gmail and download the app that does all the different colors including gray, at the lowest brightness and at other levels of brightness at 120hz its all uniform.
2003vstrom said:
yeah I don`t have this issue I did the screen test in Gmail and download the app that does all the different colors including gray, at the lowest brightness and at other levels of brightness at 120hz its all uniform.
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Mine is most noticeable at around 35-40% brightness and with 120 hz but still noticeable with 60 hz while on the note 10+ I can't see any green at all at any level of brightness. I think it's a quality issue and variation of OLED screens but not sure if it would count as "defective". Samsung doesn't do exchanges so it would be a pain to return everything and recorder without the promotions and reservation/pre-order credits. Ugh not sure what to do yet.
EDIT: Btw I tested with gmail and didn't notice the green in the app since it's light gray but as soon as I drop down the notification panel (w/dark mode on) the green is immediately noticeable. It's only with very dark gray that lookd almost black which is what Samsung use for all their apps (settings, calculator, messages, etc.) when dark mode is on. I wish they used true black so pixels were completely off like with facebook messenger.
I am also unsure what to do. I have to say, however, that this is the device that gives me the most uncertainty ever. For this opportunity price I want a good to perfect display. @vwite Don't you think that the dark grays are too bright as well? It wouldn't be so visible otherwhise. I also sent my picture to the 'write the CEO' address and a pledge to be aware of the issue:
https://www.samsung.com/uk/info/contactus/email-the-ceo/ (example: UK)
I will try checking in a store, which will be totally hard because of the light there. Maybe I will just order another one... Or a plus ?
Made another picture 'for the CEO' :silly: and will also attach the source image I showed on screen. To replicate:
- 25% brightness
- Show 5% picture in a dark room
- made picture with an S10+ on full auto
corwin_amber said:
Made another picture 'for the CEO' :silly: and will also attach the source image I showed on screen. To replicate:
- 25% brightness
- Show 5% picture in a dark room
- made picture with an S10+ on full auto
Click to expand...
Click to collapse
Thanks! Please let me know what they say.
Actually I ordered an S20+ now and will most likely just give the Ultra back in the first 2 weeks. Yes, it is a pain, but I really can not stand the screen as is. I am even putting it in its box before I have the plus and using my S10+ in the meantime - the green tint is driving me a little nuts.
I am having a hard time justifying the thickness and weight for a feature I hardly use (amazing zoom) while having an inferior main camera at the same time (focus issues).
i noticed this issue too on my 20+
it seems to be worse some days less bad other days
it also is very dependable on how much ambient light is around - eg is much more noticeable in dark rooms
and yes is an issue with Samsung dark mode that isn't true black but some dark greyish
other then this - all other colours look amazing = so not sure if the screen itself is defective
I do hope there will be a software update that will fix this or make it less visible