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Hi there,
I just got my T-Mobile SGS2. When I look straight at the phone screen, I see whites that are yellowish, as if the color temperature is bumped up by +2000-3000K. Tilting the phone 5-10 degrees to the left or right shows proper, much colder whites, as one would expect. The same nice whites can be seen if I tilt 20-30 degrees up/down.
Perhaps I would not have noticed this problem had I not played the with international version of SGS2 - the whites on that phone are just stunning anyway you look at it. I went back to the T-Mobile store and all the SGS2 phones there the same "issue". The guy in the store thinks that is how the colors should be...
Am I going crazy here? Is it normal to see this yellow cast with a straight viewing angle? Can someone confirm that their screen shows fine whites at any viewing angle? I'm considering sending the phone back for replacement, but it'd be futile if this slight yellow cast is indeed normal...
Mine is like that too. I think its just a quality of the amoled screen, cause I've seen it on other amoled phones too. You get used to it.
Sent from my SGH-T989 using xda premium
I've checked out/toyed around with close to half a dozen handsets since they came out a couple weeks back and I have yet to see one that has a yellow tint. Every one I've seen has had a blue hue/tint, some approaching a grey cast while a couple others almost like a light mint green. Unfortunately AMOLED screens have the hardest time reproducing white as there apparently is no such thing as a true white LED.
Sounds like the one you got did indeed come a lot warmer than most which tend to me on the cooler side. I wish they would have a factory setting much like most flat panel TVs have for setting/adjusting color temperature to your liking. The blue tint really bugs me but I guess over time you just get used to it. Same would go with yellow too, just have to get used to it. I suppose you could keep exchanging phones as some lucky few out there seem to have gotten handsets with a good color temperature where whites actually look white, but who knows how many times you'd have to try that. I'd bet most places wouldn't be too willing to do that for a customer though.
I'm looking at a yellowish tinted XDA now. Totally dark in my room, auto backlight could be the issue...
Sent from my Herc + EagleBlood V1
Many people out here are talking about issues with screen bleed on this tablet
I think that the issue here is there are 2 different screen issues with this tablet that people are referring to collectively as light bleed:
1)Screen bleed
2)Edge lighting visibility
Screen bleed as I define it is something visible usually on a dark background where white light leaks out on certain areas of the screen. Almost all LCD have some degree of this and some are better than others. Often increasing the display brightness on the drak screen magnifies it. And fleing the chassis of the tablet often will shift where it bleeds.
This tablet does have some issues with this, more so than my Nexus 7 ( I lost leaving it on a plane) did.
Edge lighting issue many have posted pictures on here an youtube calling it screen bleed is something different. It seems to consistently be the bottom of the tablet in portrait mode. It is most visible on a white not black background and at lowest intensity (non auto brightness of less than 20% and it is noticeable). IT is always 7 bright/dark areas in sequence. While I am no expert in LCD technology, LCD compared to Amoled have a backlight. If the backlight is lit at the edge, it is quite likely that as one lowers the screen brightness the edge lighting at its origin might be slightly brighter than the surrounding area giving off this effect. Above a certain brightness the edge lighting is overwhelmed by the brightness of the panel and is no longer visible
For those that don't understand here is a video someone posted on youtube that demonstrates on his GPAd what the edge light issue is:
http://www.youtube.com/watch?v=SmiSEC3rbHI
Now I replaced my first tablet (white one) because it had this and significant light bleed.
Picked up a black one and the light bleed is negligable. below 50% brightness it is not there and truthfully light bleed is an issue more when viewing in darkness where there is little ambient light and corners of the screen wash out with light. The fact I have none is great!!!
But........I have the same issue of the 7 areas of brighter whites at the bottom edge of the screen when brightness is below 20-25% (non automatic).They are mostly noticeable against a white background and more so when in full screen mode or white button bar is selected, or if using in landscape mode where it will then show on the right side of screen.
I am torn as to whether I should return or not. Seeing the many who have same issue and it now being there on 2 tablets from different stores and different colors (hence different manufacture runs) I suspect that this is more or less present in all G Pad 8.3 tablets. Some of us are just more likely to see it as one needs specific situations for it to be visible.
I loved my nexus 7HD before i lost it. Though I had some issues with it:
While 32gb, no expandable storage
touchscreen was not the best
Was feeling kind of small given I have a note 3 as my phone.
As such I decided to get a replacement. My final candidates were:
Ipad Mini retina display- Great Screen and app ecosystem (wife has ipad so lots of apps purchasesd as well...) But, 100$ more no expandable storage and stuck in the walled garden. Plus already have large selection of bought apps, and books/magazines in google play.
Amazon HDX8.9- I think this is the best hardware out for the money. Still light, large vibrant very bright hi res screen with insane battery life. If there was a way to get stock android on this I would jump on it. But Amazon store is limited and side loading while fine for the odd app is not how i want to fill my tablet. I can't customize it as far as looks go and while some google apps can be side loaded they don't al work or work well and there are a lot of FC. Also being in Canada, Amazon prime doesn't really benefit me as the video and music services are not available there. IT is a shame as I think I am still tempted to buy this tablet just based on the great intermediate size with best hardware
Gpad I thought this would be the perfect replacement for my Nexus 7HD. Based on reviews the added screen size without much weight and loss of pocketability. A still vibrant high PPI though dimmer screen (don't really use out doors much and seemd fine sitting in my car today leaving bestbuy). While not on latest kitkat there are good roms out there and likely can eventually swap out software fro GPE should I want. Meanwhile the LG skin adds some cool functions like Q slide apps, knock on qpair.....Seems like it is the right size, right resolution, expandable storage Better speakers than Apple... If I didn't have the edge lighting issue this tablet would be near perfect. I don't mind slightly less battery life as I will be able to charge it at night and seems most are getting 6+ screen tme and 1-2 days stdby.
Windows 8.1 Tablet (Lenovo or Dell Venue Pro Intriguing and right size at 8 inches though decidedly lower esolution and would have to forego my library of google play apps ....though having windows and full office could have some value though there is no current way to get a wired connection to a monitor or TV.
So.....in spite of the EDGE light screen issue, what should I do?
What are those of you who have noticed same thing doing or have done?
Hmmm now I am not sure what to do.
First one I bought was a white one. It had traditional light bleed in 2 corners and had this bottom edgelight issue at low brightness.
Returned it for a black one. This one is better in that it has no light bleed except the bottom edgelight issue. This occurs at brightness below 20-25. IT is not an issue during day time as I am needing brightness above 40 to comfortably enjoy the screen.
But for night time use I have to kepe the tablet a bit brighter than I prefer so as not to see it under some circumstances, I.e. landscape viewing.
I am trying to decide if it is worth returning as I love everything else about it. I am on vacation in the US and do not have the time to keep going back and forth to various best buy locations hoping for a better unit. Especially since seems the black model is in limited supply with nearest store 30 minutes away. However also given the exchange rate on my credit card, Returning it will likely cost me 20$ based on how the Credit card companies charge....
Have you tried using a screen filter off of Google play store. I used one on my galaxy 7.7 for night time use.
I would see if a third time is the charm. Return the unit and ask if you can turn on an inspect the next unit before leaving. See if you can find one that is acceptable before walking out the door. To me, the G Pad is best unit out there in the 8" space. Fire HDX8.9 is nice, but as you mentioned, it doesn't support the Play Store and requires everything to be side loaded. Additionally can't really customize the UI at this time. Hardware is killer, but until you can drop standard Android UI on top, G Pad is better option. In regards to Ipad Mini, it's nice, but absurd at that price. If you were to go for iOS, better off with the Air as it can be had for about $60/70 more. To me the Windows Tablet is not really an option. Depends on what you plan to do with it. I've read mixed reviews with the Windows Tablets. Good for some productivity apps and browsing but not so great at gaming. Still do quite a bit of games, so for me not an option.
Again, recommend giving it one more try and exchanging the unit and see how it goes.
cbb77 said:
I would see if a third time is the charm. Return the unit and ask if you can turn on an inspect the next unit before leaving. See if you can find one that is acceptable before walking out the door. To me, the G Pad is best unit out there in the 8" space.
Again, recommend giving it one more try and exchanging the unit and see how it goes.
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Click to collapse
Thanks for the advice. ...
Went to a third best buy location tried 4 different gpad as salesman let me test them.
All had same issue. I will keep it anyway. Switched for the white again though. Prefer the feel of the back and no finger prints
Sent from my SM-N900W8 using Tapatalk
The screen on my 8.4in Tab S is bugging me, is it just me?
With all "super enhanced" colour settings set to plain and boring colour, I keep noticing a slight green tint in the central area of screen when viewed square-on, it's very subtle and seems more obvious with text on the screen, e.g. the Tapatalk forum listings. Also when viewed from an angle the display takes on a slight blue tint, despite reviews saying how good the angles are, it seems worse than the LG G Pad.
Is this just a feature of AMOLED displays or could it be a faulty unit (how?)?
I don't see it. Sorry.
Armpowered said:
The screen on my 8.4in Tab S is bugging me, is it just me?
With all "super enhanced" colour settings set to plain and boring colour, I keep noticing a slight green tint in the central area of screen when viewed square-on, it's very subtle and seems more obvious with text on the screen, e.g. the Tapatalk forum listings. Also when viewed from an angle the display takes on a slight blue tint, despite reviews saying how good the angles are, it seems worse than the LG G Pad.
Is this just a feature of AMOLED displays or could it be a faulty unit (how?)?
Click to expand...
Click to collapse
There shouldn't be any differences viewed at any angle with this screen. Try this... in bright sunlight, with the screen off, look at the screen on an angle. It should look a uniform color - actually almost exactly matching the titanium bronze bezel... just to make sure there is no physical defect.
Something to note - if the screen is OK, it could be your eyes (not joking). The eyes can play many tricks - for example, seeing a lightly shaded box with text on a piece of paper that is only black and white - the box can appear to be shaded slightly red. That's one example, but there are many. And with the resolution and technology of this screen, there are no imperfections to draw your attention, like staircasing, blur, backlight irregularities, that you are used to seeing. It is a bit confusing to our physiology, and our brain does this thing called "patternization" that can contribute to us truly seeing something other than it is. This seems to be more subtle, yet more frustrating on a display that is so close to perfect.
I'm not saying that there is something with your eyes specifically. It could certainly be a defective screen. One way to find out would be to take a look at someone else's - also, if you have another decent camera, you can take a picture of the screen and look at the picture - that will usually confirm (or not) whether what you are seeing is there. Like I said, it's not you or your eyes I'm dissing. These are things I've picked up on over the years. In fact, it could ONLY be my eyes. If that's the case, I'd probably rather not know.
You can also use a colorimeter and software like HFCR to get the discreet measurements from different parts of the screen. When I have done this, I've found that there was no real difference in chromacity. Of course, that has always made me walk away thinking that the colorimeter must not be accurate. So human.
I would definitely be interested in your feedback about what you find because I've obsessed over high resolution displays trying to figure out what is real and what I'm imagining... it's an active area of interest for me.
Mike
Armpowered said:
The screen on my 8.4in Tab S is bugging me, is it just me?
With all "super enhanced" colour settings set to plain and boring colour, I keep noticing a slight green tint in the central area of screen when viewed square-on, it's very subtle and seems more obvious with text on the screen, e.g. the Tapatalk forum listings. Also when viewed from an angle the display takes on a slight blue tint, despite reviews saying how good the angles are, it seems worse than the LG G Pad.
Is this just a feature of AMOLED displays or could it be a faulty unit (how?)?
Click to expand...
Click to collapse
Yes I have also noticed this. I've seen these green or pink tints on all the amoled devices I've owned. You need pretty good eyesight to be able to notice it. You shouldn't be bothered by it, they're all like that, if you can see it. But you'll get used to it.
I probably will not get used to it...
Freshman206 said:
I probably will not get used to it...
Click to expand...
Click to collapse
Thanks Freshman206 and SrAdama, glad (?) to hear that it's not just me, I've had the tablet just over a week and still notice it. Any slight tilt and the colours appear/shift, green, pink and when angled beyond what I'd consider normal, blue.
Have photographed it and will have another go at getting it clearer but by winding up saturation the effect becomes visible in the photos (on pc).
I'm now trying to decide what to do about it, I have an LG G Pad which doesn't annoy in this way, though it has just gone away for a warranty screen repair for bright spots (not stuck pixels)!
Armpowered said:
Thanks Freshman206 and SrAdama, glad (?) to hear that it's not just me, I've had the tablet just over a week and still notice it. Any slight tilt and the colours appear/shift, green, pink and when angled beyond what I'd consider normal, blue.
Have photographed it and will have another go at getting it clearer but by winding up saturation the effect becomes visible in the photos (on pc).
I'm now trying to decide what to do about it, I have an LG G Pad which doesn't annoy in this way, though it has just gone away for a warranty screen repair for bright spots (not stuck pixels)!
Click to expand...
Click to collapse
It is probably the antiglare coating you are seeing.. If you have the coating on your glasses and check them out, it will do the same thing as your tablet... I also noticed it appears to have a anti fingerprint coating on as well, very nice indeed :>
In shops I also have compared 3 different Tab S.
All had an immediately visible green tint, white looks not white but greenish and a bit "washed out".
I find it a bit surprising that with other devices, when they have a tint (like the yellow tint of the Xperia Tablet Z), people complain much, while here, with this really apparent tint, people tend to say: It's normal, get used to it...
I would never buy a Tab S, just because of this tint and because of the, compared to other devices, low maximal brightness.
These devices are overrated.
I ran a poll in this forum as to whether people were satisfied with white reproduction on their tablets or not. Out of 15 responses 12 were satisfied.
We have heard reports of manufacturing defects such as yellows screens, muddy splotches in the middle of screens, loose creeky backs, warped backs and excessive lag/stutter.
These are not "normal" for this tablet but represent what may be a bad run of tablets that made it out of the barn. If you are experiencing the issues suffered by the OP, I suggest you seek a replacement unit. If you have observed similar performance from other tabs in the same store that would make sense as they are likely from the same faulty production run.
When operating normally, white should be white on the Tab S. For myself and the large majority in the poll, this is the case. I have also not read any reviews by professionals mentioning this discoloration and believe me, if CNET or THEVERGE had something to rag on the Tab S about they would have.
---------- Post added at 01:15 PM ---------- Previous post was at 01:01 PM ----------
hasenbein1966 said:
These devices are overrated.
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Click to collapse
The average rating by actual owners of the Tab S 10.5 bronze at BestBuy is 4.8 out of 5 stars with 53 reviews.
The average rating by actual owners of the Tab S 10.5 white at BestBuy is 4.9 out of 5 stars with 36 reviews.
You will see very little if any mention of an issue with yellow or green discoloration. I'm sure you are seeing what you are seeing but the problem does not appear widespread.
http://www.bestbuy.com/site/searchp...&id=pcat17071&iht=y&cp=1&nrp=15&st=Tab+s+10.5
---------- Post added at 01:44 PM ---------- Previous post was at 01:15 PM ----------
I just took a picture of a webpage with a white background on my 10.5 and sent it to my laptop which has software that measures colors.
The website background from my Tab S 10.5 measured at 255:255:255. That is pure white. This was a photo and not merely a screen shot.
Saw the 10.5 inch and 8.4 inch models together on display in a shop. The 8.4 inch version also had slightly yellow tinted whites when looked at directly, not as bad as I was expecting though. The 10.5 inch model had no yellow tinted whites at all, when looked at directly or tilted.
Mine has pinkish tint at the top visible when everything is white especialy when reading wikipedia
Vertron said:
Saw the 10.5 inch and 8.4 inch models together on display in a shop. The 8.4 inch version also had slightly yellow tinted whites when looked at directly, not as bad as I was expecting though. The 10.5 inch model had no yellow tinted whites at all, when looked at directly or tilted.
Click to expand...
Click to collapse
so when i switch screen mode to amoled basic, my screen have yellow tint (like warm color) and a little washed out color, is it normal or just my unit?
because when i switch screen mode to amoled cinema, everything looks saturated which is i think okay...
Armpowered said:
The screen on my 8.4in Tab S is bugging me, is it just me?
With all "super enhanced" colour settings set to plain and boring colour, I keep noticing a slight green tint in the central area of screen when viewed square-on, it's very subtle and seems more obvious with text on the screen, e.g. the Tapatalk forum listings. Also when viewed from an angle the display takes on a slight blue tint, despite reviews saying how good the angles are, it seems worse than the LG G Pad.
Is this just a feature of AMOLED displays or could it be a faulty unit (how?)?
Click to expand...
Click to collapse
At what angle are you looking at it.???
serious96 said:
so when i switch screen mode to amoled basic, my screen have yellow tint (like warm color) and a little washed out color, is it normal or just my unit?
because when i switch screen mode to amoled cinema, everything looks saturated which is i think okay...
Click to expand...
Click to collapse
Yes the Basic profile is meant to be that way its not the screen problem being discussed here, if you wanted an accurate image then Basic is the closest of all the profiles. If Basic looks washed out to you then your used to looking at an oversaturate screen, if you were used to looking at calibrated screens then all three profiles would look over saturated.
I had the 8.4 and just returned it. I also had the greenish-blue tint when the screen was even just slightly tilted. More noticeable indoors with brightness set to below 40%. If I had the tablet flat on the table and walked across the room, I could see it too - screen only looked good if looking at it directly in front of you. As others have said, I think it's probably due to some coating on the screen, which explains why it would be more noticeable with the screen brightness set lower.
I've checked out a few display models at stores, they all basically look the same, though some were slightly worse than others. That being said, the 10.5" ones I saw don't seem to have this problem... if they do, it's definitely not as noticeable. Not sure if it's just an optical illusion or what, but the 10.5's look OK. I'm going to go buy the 10.5 one today, mainly for the size. I'll post again if there are any tints on the screen.
aimfire72 said:
I had the 8.4 and just returned it. I also had the greenish-blue tint when the screen was even just slightly tilted. More noticeable indoors with brightness set to below 40%. If I had the tablet flat on the table and walked across the room, I could see it too - screen only looked good if looking at it directly in front of you. As others have said, I think it's probably due to some coating on the screen, which explains why it would be more noticeable with the screen brightness set lower.
I've checked out a few display models at stores, they all basically look the same, though some were slightly worse than others. That being said, the 10.5" ones I saw don't seem to have this problem... if they do, it's definitely not as noticeable. Not sure if it's just an optical illusion or what, but the 10.5's look OK. I'm going to go buy the 10.5 one today, mainly for the size. I'll post again if there are any tints on the screen.
Click to expand...
Click to collapse
The problem was a green tint in the center when looked at head on not at an angle, seeing shifts in color when tilted is normal for this tablet. I would have kept yours if it was fine straight on.
My 10.5 had greenish yellow tint when looked at head on exactly the same as the op.
http://forum.xda-developers.com/galaxy-tab-s/help/normal-screen-faulty-t2822471
I was gonna return for the 10.5" anyways, the screen tint wasn't part of that decision, but I certainly won't miss it, heh.
Mine it is extremelly yellow! I hate this bug... It happends to me every 10 minutes, i need to restart every time to revert this.
Hey everyone,
I got my black AT&T Note 4 earlier today. I noticed the lower half of the screen is slightly darker, and has a slight pinkish tint on a white screen.
I do notice it in some apps, like Kindle when readinga book. Top of screen is slightly brighter, and when background is white there's a very slight pink tint.
Is that normal? Or should brightness be uniform and no tint?
EDIT: I added a photo. It's not a good photo but you can see how one side is tinted differently. In the photo the brighter top looks greenish but in real life it's not green. You can also the slight pinkish tint in the bottom half, which is the left side of the photo.
I wouldn't want to comment based on the image you uploaded directly since how a camera captures a digital display is much different than what the naked eye will see. If the picture on the panel is not consistent and appears polarized in any way, I would consider that to be faulty. Get it replaced.
Galaxy Note 4 (pink tint lower screen)
Hi there,
I have also noticed a pink tint on the lower half of the screen on new Samsung Galaxy Note 4.
As i intend to do a lot of drawing on this device the tint is unacceptable.
I wonder if there is a way to calibrate the display?
I had this issue with my Galaxy S3 display. I had at&t exchange it.
Have this same issue on my Note 4. Posted some pics over in the thread on this topic for the Note 3 before I thought to check here. Basically there's a brightness and gamma gradient from top to bottom. The top half is perfect and the bottom half gradually fades to a point where you lose the first 8-9 squares on the lagom.nl black level test.
This one emphasizes the black crush, which can be visible in video content on a dark screen (and makes dark colored backgrounds fade to black towards the bottom):
And here's one on a white background. At first it seems like a white point issue (which I would tolerate since it's common on IPS as well), but it's a brightness gradient:
Between this and the fact that AT&T disabled the slider for auto brightness I'm a little frustrated with this supposed best smartphone display ever (I realize this second issue isn't Samsung's fault, but the auto brightness is unusable without that feature). I bought the phone at Best Buy which is mostly out of stock right now so an exchange isn't likely, assuming they even take this seriously as an issue.
My note 4 does not display this issue.
No issues here. Display looks very consistent.
mkalbarc said:
My note 4 does not display this issue.
Click to expand...
Click to collapse
Have you tried a dark background in a dark room? For me it wasn't that obvious until I did this (was messing around in Sketchbook). If the majority of screens are better than mine I'll definitely be trying to get a replacement as this is bothering me.
I just installed Lux to resolve my backlight issue and its settings menu background fades nearly entirely to black at the bottom.
*Edit: So far it sounds like this is an anomaly. You would expect places like Anandtech to report on it if they'd seen that amount of variation. I'm going to have a good time trying to convince someone at BB that this is a real defect though.
Erica Griffin talks about this issue in her Note 4 review, around the 20 min mark: https://www.youtube.com/watch?v=-OyNWrQJzMY
I got a replacement and it's perfect. No pink tint.
So, if you have the tint return it. Not all Note 4s are like that.
msk said:
Erica Griffin talks about this issue in her Note 4 review, around the 20 min mark: https://www.youtube.com/watch?v=-OyNWrQJzMY
Click to expand...
Click to collapse
Thanks, that was quite helpful. I think in general it's easier to trust reviews on retail-purchased devices over mainstream reviews with PR department selected units.
I went to BB today and looked at the display units. All perfect, but then that's not surprising (every company gives their display/review units a second QC pass, even Apple). I'll probably head to the only BB in the area that has units tomorrow and see if I can do an exchange. As long as they don't make me sign one of those "no more returns" agreements I've heard about I'm willing to take another shot in the display lottery.
TapperP said:
I got a replacement and it's perfect. No pink tint.
So, if you have the tint return it. Not all Note 4s are like that.
Click to expand...
Click to collapse
Good to hear! I'll post my results after my exchange attempt tomorrow. Aside from the gradient I am impressed with the display. Not as bright as LCD in daylight, but I was drawing on a black BG last night and noticed that it has deeper blacks than my Pioneer plasma.
Atomic Walrus said:
Good to hear! I'll post my results after my exchange attempt tomorrow. Aside from the gradient I am impressed with the display. Not as bright as LCD in daylight, but I was drawing on a black BG last night and noticed that it has deeper blacks than my Pioneer plasma.
Click to expand...
Click to collapse
Fingers crossed for you to get a nice one like mine.
Yeah, the blacks and colors are amazing on the Note 4. The whites are not as bright as the iPhone 6+, but they are fine and way better than whites on my Note 2. In all other respects the Note 4 screen is overall better than even iPhone 6+'s excellent LCD.
One minor disappointment is the very high resolution has made some emulators dog slow as they attempt to render at full resolution, i.e. PPSSPP and ePSXe using ogle renderer. Hoping the devs find a workaround, maybe rendering at half or quarter rest instead - that would still be higher rest than my Note 2 at full rest. :laugh:
What's the color of your device? Anyone have this problem in the white version?
my note 4 has pink tint
I have the same problem on my Verizon white note 4 but on top half of display. Replacement should arrive by Friday :/
You can replicate this by looking at the screen at an extreme angle, obviously the ones that see green and purple straight on are screen defects.
I have a white version and whites are perfect and too bright at high setting. I keep mine half way. The whites are better IMHO than the iphones. The colors more vibrant and, the sharpness is ridiculously sharp. I dont see how they can improve it. I only thing there should be a waynto adjust the color saturation, because basic mode doesnt do much on mine.
My Note 4 has the same issue. It almost looks like the while balance differs from top to bottom, but it is really the brightness that is different.
This is a photo of my Note 4 showing a solid colored image at #030303 (very close to black). It shows how different the pixels in the bottom and in the top emit light.
Image can be seen at 1x.com/tmp/uniformity_note4.jpg
Looks like crap.
/ j
I though i had ocd with phones but that just doesnt bother me in the slightest. Cant really tell unless you force yourself
http://forum.xda-developers.com/showthread.php?p=56562683
similar problem
I have a similar issue, though mine is brighter on the right side than it is on the left. Very noticeable with dark background in lower light situations as someone else mentioned.
I had ordered OP3 on the day of launch and got it the next day. After using the phone for about 5 days, I noticed that the top part of the phone had a bad pink tint which was clearly noticeable on White and Grey backgrounds at any brightness. I sent the phone back for replacement and got a new one few days back. The phone looked almost perfect and have been using it for around a week now. Yesterday I bumped on another thread in a forum when I saw a peculiar screen uniformity issue in only one particular shade of Grey.
Steps to reproduce the issue
1) Open the below link in Chrome in a dark room.
http://www.nullabletype.co.uk/static/styles/blah2.html
2) Reduce the brightness to just above the minimum brightness (5-10%) with adaptive brightness turned off.
3) Go to Display settings --- Turn on Night mode --- Increase the slider below to the maximum.
4) Scroll to the 3rd image (the one after Black)
5) Mine has uneven brightness. Some part of the screen is darker than others.
6) Increase the brightness to say 25-30%. Everything looks uniform.
7) Scroll to other images (other shades of grey) and no screen uniformity issues at any brightness.
Now, I am not sure if I should send this back again. I don't use such brightness levels even in night and I don't see any screen uniformity issues in any other brightness levels or shades. I also searched in internet and found similar issues being reported in Nexus 6P, S6, S7, etc in Reddit, xda, etc. There are people who have RMA'd their devices 5-6 times without much luck. From what I have understood till now, AMOLED's are not really perfect in displaying Grey at extremely low brightness. Or may be, its due to the current software targeting the NTSC Gamut ? Anandtech recently said that sRGB update (coming in 3.1.4) has made considerable improvements in Greyscale accuracy.
Before I even think of sending the phone for 2nd replacement, I would like to know how's the screen uniformity with others here.
I did the screen test the moment I got the phone everything turned out good, I was really worried after reading the reviews on the net about the screen. But it seems like only handful of people are facing the problem.
Can you please let me know how you tested it ? I too had tested it on Day-1 since this is the second OP3, using "Screen Test" app and everything looked good. Only one particular shade of gray at low brightness creates this problem.
Not exactly 'real life' usage?? Haha
Looks fine on mine. Uniform grey across the whole screen.
Yeah I definitely have the same uneven brightness on the dark grey on the right side, it's even visible on the notification drop down. Like you, I'm wondering if it's something that can be fixed, or something I should bother RMAing, am I just gonna have the same thing again? It's strange, it looks like uneven backlight but there is no backlight.