[Q] S4 Mini bad screen quality? - Galaxy S 4 Mini Q&A, Help & Troubleshooting

I just bought a S4 mini and flashed cm12.1 as I did not intend to use Samsungs Android.
I immediately noticed that the screen looks dirty/grainy
This can be seen best on the "power control widget" background. It looks like a sand paper texture.
But I see that on every not over saturated single colored area also.
I am aware that all AMOLED display do not have super good accuracy, but it is not that I have to stick my face to the screen to notice.
I see this every time without any effort and I find it ugly. It just looks dirty.
I compared with my PS VITA (1st gen) AMOLED and I really really have to concentrate and try hard to see that dirty look there. It is far more clean than my S4 Mini display.
Can anyone confirm? Or is is just bad luck with my unit?

I noticed this too since I got my first S4 mini.
I have two phones and looked at other ones (store, friends). All are the same - grainy.
It's not because of the PPI, I have other phones with lower PPI and backgrounds are clear.
It's most probably because S4 mini doesn't have the "classic" subpixel layout where RGB are close to each other.
The used arrangement is this: https://upload.wikimedia.org/wikipe...pg/1280px-Samsung_Galaxy_Note_2_subpixels.jpg

nick_white said:
I noticed this too since I got my first S4 mini.
It's most probably because S4 mini doesn't have the "classic" subpixel layout where RGB are close to each other.
The used arrangement is this: https://upload.wikimedia.org/wikipe...pg/1280px-Samsung_Galaxy_Note_2_subpixels.jpg
Click to expand...
Click to collapse
Hi thanks for confirming and thanks for not telling my that I am crazy
But the reason is not only the strange subpixel layout. It seems to be also just bad quality.
Our strange subpixel layout leads to color edges left right top and bottom of a white square on black instead of just left (red) and right (blue), but apart from that it should produce clean single colored areas (whicht it obviously doesn't).
The Vita in addition to producing better single colored areas has the real RGB stripe layout which reduces color edges. I wonder why Samsung gave up on these. Maybe it was too expensive to build(?)
http://mydevelopersway.com/ru/wp-content/uploads/2013/08/Display-Sub-Pixels.png

Related

Color production on SAMOLED screens [SAMOLED vs (s)LCD]

Many people believe that SAMOLED screens on Samsung devices are far superior in every way to other devices. Recently with the addition of all these new and similarly spec'd WP7 phones, it seems like a big deciding factor is the screen display.
I have used a focus and a htc surround for a week in addition to my iphone 4. Watching avatar on both devices, I realize that both screens have their setbacks, thats right even the AMOLED!
The general consensus with htc devices is that the viewing angles are terrible. Check out any video review of a HD7 or Surround and you can see that the screens are extremely washed out when viewed at an angle, and unfortunately, many of these reviewers shoot their videos not head on for obvious viewing reasons.
But when viewed normally, the wp7 htc devices are definitely not as awful as at an angle. Still, it is nowhere near SAMOLED crispness or vibrancy. One thing I did notice, however, is that when watching the same video or viewing the same webpages on my iphone 4, I can rightfully say that the lcd screens from htc are just as good as the overly praised retina display. The differences of colors and sharpness between the two are too subtle to tell.
The SAMOLED screens "pop" in color and vibrancy. Whites are glowing white and blacks are dead on black. No one can say that the Samsung did a bad job on their new screens. However, one thing that people tend to misjudge is the color production on their devices like the focus or omnia 7. It seems that while the surround may not produce white and dark as vibrantly, the ACTUAL colors (red, blue, green) are pretty close to what they should appear. What I am saying is the SAMOLED screens are TOO SATURATED. Again this could all be subjective, but I find that the SAMOLED screen just goes for as vibrant and colorful as they can get, disregarding true color tones. For instance, skin in pictures looks intensely orange and I have never seen skies so blue in real life. Webpage colors can be a bit to contrasting as well. And my opinion is from comparing the SAMOLED to my macbook pro LED screen.
I watched avatar on my blu ray and compared it to the surround and the focus. unfornately to say, the focus just makes the navis look almost syrup-y bubblegum blue. The high contrast of samsung screens are good in some ways but in others, it just seems overdone.
HTC may have made their screens to warm in color, thus appearing a bit washed out when comparing to other wp7 devices. But the AMOLED screen seems too saturated in color production, not just compared to my surround, but also my macbook's screen as well as my LED tv.
So in the end which would you pick? What are your guy's thoughts?
I've never done that kind of testing but my captivate has an awesome screen and I would put it against any other screen. The ritna screen isn't as impressive as apple makes it out to be. At least for me. But I will say these are the best out of all of them. My friend just picked up the x10 and boy does the screen look like $h!#, next to mine.
Sent from my cogcap
I 100% agree with you, infact I have had alot of iphone 4 users comment on how good the screen is on the HD7 which shows what a difference using the phone in a normal way makes when compare to viewing at some obsure angle.
I also have always though the colours look wrong on OLED screens, but having said that, I have always though that about samsungs HDTVs, they seem to over exagerate all the colours and sharpness to make you initially go "WOW", then when you think about it, they just look wrong.
Personally, im happy with my HD7 LCD, and would take SLCD over OLED at the moment.
The over-the-top vibrance is a reason why I went SLCD.
That and the Pentile pattern. My eyes are still well enough to notice fringing on rendered text as well as the pattern generally on evenly lit surfaces.
I had a Nexus One, the OMG-in-your-face colors get old quickly.
thanks for input, the captivate looks amazing running android and playing videos I agree.
But do you think there is a line between displaying vibrancy vs true colors?
Sometimes when I view images in the focus, it feels like I opened a photo in Lightroom or Photoshop and just cranked up the vibrancy settings to the max, resulting in some drastic color contrasts.
But then again, the LCD screens of HTC do seem last generation. If only they could meet in the middle.
@ Tom Servo, I actually think the Nexus One did a good job on their screens. They use regualr AMOLED screens just like the Zune HD from microsoft.
Color production was beautiful. Only complaint with those screens are that they practically turn invisible in sunlight haha.
For me, WindowsPhone7 is all about white letters on black background and some coloured squares in between.
I do not watch videos on the phone and I don't have much photos to display.
So I chose the Omnia7 with that gorgeous SAMOLED screen because it's superior for my use.
SAMLOED ftw. IPSLCD (retina display) is old, Apple just upped the pixel count. Put that many pixels in a SLCD and would look gorgeous.
Take a peek at this article, it has all you need to know:
displaymate.com/Galaxy_S_ShootOut.htm
Scroll down to section 8: Gamut.
You'll see that the SAMOLED is way over-saturated and that the
iPhone4 is very washed-out.
I own a Focus and a Droid, as well as an e-IPS and s-IPS panels, and I can
tell you that the article is spot on. Colors on the Focus are like crayola simple.
If you want accurate colors, then go somewhere else, but if you want the
"wow factor" then go SAMOLED hands down.
Hope that helps.
mrroey said:
@ Tom Servo, I actually think the Nexus One did a good job on their screens. They use regualr AMOLED screens just like the Zune HD from microsoft.
Color production was beautiful. Only complaint with those screens are that they practically turn invisible in sunlight haha.
Click to expand...
Click to collapse
I went from Nexus to Trophy. Looking at the same pictures, I actually preferred SLCD. That and as I said, some people notice the Pentile pattern. Which also makes text fuzzier. With Metro being pretty sparse in busy textures and mostly text based, I think it makes more sense to use the display technology that has full resolution on all color channels. AMOLED has currently half the horizontal resolution on the red and blue channels.
In relation to Samsung devices, it's possible they're running their Digital Natural Imagine Engine in background. I haven't had a direct Samsung device with AMOLED, so I can't say.
Oranjoose said:
Take a peek at this article, it has all you need to know:
displaymate.com/Galaxy_S_ShootOut.htm
Scroll down to section 8: Gamut.
You'll see that the SAMOLED is way over-saturated and that the
iPhone4 is very washed-out.
I own a Focus and a Droid, as well as an e-IPS and s-IPS panels, and I can
tell you that the article is spot on. Colors on the Focus are like crayola simple.
If you want accurate colors, then go somewhere else, but if you want the
"wow factor" then go SAMOLED hands down.
Hope that helps.
Click to expand...
Click to collapse
That was a GREAT article and very informative, though it can get a bit technical at times. To quote some interesting conclusions from the articles...(NOTE THAT THIS ARTICLE WAS WRITTEN PRIOR TO WP7 PHONE RELEASE)
"We compared the Galaxy S side-by-side to a calibrated Professional Sony High Definition Studio Monitor using a large set of DisplayMate Calibration and Test Photographs. All of the photos on the Galaxy S had too much color saturation, to the point of appearing gaudy, particularly faces and well known objects such as fruits, vegetables, flowers, grass, even a Coca-Cola can. Photos that include very color saturated objects, such as a fire engine, were in some cases painful to look at. These effects are similar to setting an HDTV to a Vivid picture mode and then turning up the Color and Sharpness Controls. The punchy and excessively vibrant looking images on the Galaxy S may initially get lots of oohs and aahs, like in many of the early reviews, but after a while the gaudy looking images will become tiresome and unpleasant."
"There is no decisive winner as each of the three “Super” displays significantly outperforms the others in more than one important area and significantly underperforms in other areas. The iPhone 4 by far has the brightest and sharpest display and is the most power efficient of the displays. The Motorola Droid by far has the best picture quality and accuracy. The Samsung Galaxy S by far has the lowest screen reflectance and largest Contrast for both bright and dark ambient lighting, and the best viewing angles. On the flip side, the iPhone 4 has a weak color gamut and viewing angles, the Motorola Droid has weak screen reflectance and viewing angles, and the Samsung Galaxy S has lower brightness, excessive color saturation, higher power consumption and some sharpness issues. "
so there you have it. according to Displaymate,
iphone 4 = best mobile display
motorola droid (surprisingly) = best mobile picture quality
Samsung vibrant = best mobile display technology
Samsung is notorious for producing display panels with oversaturated color pallet.
It is true for their Plasma, LCD, LED's on the consumer grade television sets and now SAMOLED displays on the mobile devices.
the oversaturation of the AMOLED's have been well documented prior to now. it doens't seem to be a problem for many as everyone has different interpretation of colors in their own eyes anyway.
I just think when u put these phone side by side...and contrast and vibrance of the samsung phones is just ridiculous...true color representation kinda falls to the side
The Retna screen is very impressive because the pixel density is much higher than on other screens. That makes reading on the screen MUCH easier on the eyes than on other screens. You may not consciously know it, but eye fatigue does happen and it's a huge consideration when buying a device you will spend so much time looking at. It also means the text will look much better when/if you zoom in on it.
It's like comparing a crappy CRT monitor to a high class LCD.
The color reproduction on sAMOLED is nice.
However, there's more to a phone than the screen.
HD7 has more RAM than other WP7 devices. It has a bigger screen than other WP7 devices. It has more storage than many other WP7 devices.
The only major downside to that phone, IMO, is small battery and the fact that the screen is flush with the front of the phone. Unlike something like a Vibrant, if you drop an HD2 or HD7 on its face it can destroy your screen.
Of course, that can be somewhat fixed with a case... Some people don't like cases, though...
I like the SAMOLED screens, but when I looked at the HD7 it was better than I thought it would be. That being said I do still want the SAMOLED. The other factors leaning me toward the focus (or samsung in general) are the fact that the screen has gorilla glass, making it much less likely to be scratched and when I was playing with the Focus and the Quantum/Surround/HD7 the screen on the Focus also seemed much more sensitive and responsive compared to the others.
Omega Ra said:
...the screen on the Focus also seemed much more sensitive and responsive compared to the others.
Click to expand...
Click to collapse
This might have to do with the fact Samsung places the SAMOLED display directly beneath the capacitive screen. Other phones have a much larger space between the two.
The result is Samsung phones are often thinner, and they appear to be more accurate and responsive.
i put my omnia 7 up against a hd7 in the flesh ( metal/plastic) and there is no comparison. Theres just no going back to LCD now. and as for viewing angles, seriously?, viewing angles on a mobile phone? are you kidding me? no one holds their phone at an angle! its not like we are going to mount our phones onto walls and have 10 people gathered around to watch it.
Since having my desire with amoled display for about half a year I won't go back to lcd/slcd because I think the colors are far more superior at least to me.
I went for the Omnia 7 as business device and I couldn't be happier. Build quality is surprisingly very good, perfect screen size for my needs and all in all I'm glad that I didn't choose the HD7 imho.
Regards
It may not be the sharpest of display and not produce the most accurate colour and I wasn't particularly impressed with Galaxy S S-AMOLED screen on android!
However IMHO S-AMOLED looks stunning on WP7 OS, it really compliments the Metro-UI and when put side by side with S-LCD running the same OS it's just not the same! It's for this very reason that I went for Omnia 7 over HD7.
lqaddict said:
Samsung is notorious for producing display panels with oversaturated color pallet.
It is true for their Plasma, LCD, LED's on the consumer grade television sets and now SAMOLED displays on the mobile devices.
Click to expand...
Click to collapse
Samsung plasma and in general any plasma is not as oversaturated as other technologies. LCD and LED displays from all manufacturers are setup to be in the "torch" mode (sometimes called dynamic by the manufacturers) to stand out on the floor. And to compensate for the grayish black level they oversaturate the color.
After you calibrate though, they all look the same, almost. LEDs will have a bit of blooming, LCDs will not be as black as plasmas and plasmas will lack the brightness in case you want to watch in a sunlit room.
The iPhone 4's screen looks pretty good, but 3.5 inches? Ugh.

Screen tint

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.
Click to expand...
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.

[Q] Pink tint on lower half of screen? Normal?

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.
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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.
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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.

Clarity/resolution

The OnePlus 3T has a crazy crisp display. Just kidding, this is automated text so who knows if this screen is any good. So, you be the judge! A higher rating indicates that it's extremely sharp and clear, and that you cannot see pixels with your naked eye.
Then, drop a comment if you have anything to add!
How do you find the sRGB-mode? I dont like it at all. The colours are not colourful any more in that mode. I find custom mode full warm the best though...
What about you?
TheHupfdole said:
How do you find the sRGB-mode? I dont like it at all. The colours are not colourful any more in that mode. I find custom mode full warm the best though...
What about you?
Click to expand...
Click to collapse
Same, custom mode with full warm is my fav so far. Whites in other modes looks little blueish to me.
At first I thought S-RGB mode to be very bland in comparison with the default's vibrant colours. But after trying out the S-RGB for a day straight I don't want the default anymore xD
Everything seems much more realistic, accurate, not overly saturated, and even soothing/calmer with S-RGB. Default now gives off a wacky vibe, like I'm high or something
Edit: Tried custom full warm like the posts above, but I don't like it during the day. At night it is good, but still prefer the S-RGB for most of the day.
I really dislike the screen of the OP3T and I'm probably going to return mine because of it.
Unfortauntely I can't post an image comparison I made but you can probably see it for yourself: get some app with sharp edges in the UI and black on white text (Now for reddit, for example), you'll notice a bit of color fringing around the text, typically some green above and purple below the characters' lines. This makes text look somewhat out of focus and uncomfortable to read.
It really sucks compared to my Nexus 5's IPS screen, sure more vibrant colors but what use is that if it can't display text in a readable form?
Too bad, I really like the rest of the phone. Now I'll have to go back and look for another affordable dual sim high-spec phone.
(This is my second OP3T after I returned the first one believing this was a manufacturing defect, after some looking around it seems to be a result of the screen being a PenTile AMOLED display at a too low resolution for the size)
i now have a huawei p9 with 1080p ips lcd and 5,2". i like the uniformity and the "sharp edges" (no pentile matrix) of the display.
anyone in the same boat and did a "downgrade" to the OP3T amoled screen?
i`m a little bit afraid of uneven gray level (yellow on one side) and fuzzy fonts which are not so comfortable readable as on a lcd display.
l like the phone specs but worried about the low resolution screen - anyone have this and the s7 edge and can compare the screens ?
sRGB mode is really great in my opinion --> the calibration in this mode is great, so you can be sure, that everything on the web and in apps looks as the creator intended, as sRGB is for the time being the "standard" color profile.
I have no problem with the pentile matrix and 1080p resolution --> while I can notice a difference in sharpness compared to the OPO with its 1080p IPS display, the display of the OP3T is all around great. I would put the sharpness of the OP3T around the sharpness of the iPhone7 (non plus) with its 326ppi.
The sRGB mode on the OP3 is way better.. The OP3T sRGB mode is definitely pretty washed out with a lot more yellow tint..
I'm sure one plus can tweak that.. Nothing inherently wrong with the screen coz I think they're the same..
Sent from my ONEPLUS A3003 using Tapatalk
Rodn3y said:
I really dislike the screen of the OP3T and I'm probably going to return mine because of it.
Unfortauntely I can't post an image comparison I made but you can probably see it for yourself: get some app with sharp edges in the UI and black on white text (Now for reddit, for example), you'll notice a bit of color fringing around the text, typically some green above and purple below the characters' lines. This makes text look somewhat out of focus and uncomfortable to read.
It really sucks compared to my Nexus 5's IPS screen, sure more vibrant colors but what use is that if it can't display text in a readable form?
Too bad, I really like the rest of the phone. Now I'll have to go back and look for another affordable dual sim high-spec phone.
(This is my second OP3T after I returned the first one believing this was a manufacturing defect, after some looking around it seems to be a result of the screen being a PenTile AMOLED display at a too low resolution for the size)
Click to expand...
Click to collapse
I'm calling BS on this one. Smells like a troll...
I just got OnePlus 3t for a week. The screen sharpness look okay to me, I have s6 and s7 edge to compare and I can't see any pixel in these phone except both samsungs look sharper. The only complaint here is that the screen panel doesn't look very black when see in daylight and not as vivid/warm, compare to my iPhone 6s. But custom setting to nearly full warm help a lot.
I use to be afraid of the pentile 1080p too, but now I can say it look very great.
I'm disappointed in the clarity of the screen, it looks quite pixelated and grainy to me. I can't understand why OP didn't go for a QHD in the 3T
I preffer 1920x1080 in my 3T, the screen has a lot of quality in my opinion, I don't want anymore.
I don't like the screen at all, it just isn't as sharp as other phones compared to today's standards its not great. Im quite let down by it.
Batfink33 said:
I don't like the screen at all, it just isn't as sharp as other phones compared to today's standards its not great. Im quite let down by it.
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Click to collapse
LeL
It's decent in my opinion
I came from Galaxy S6 and its (well, let's face it) outstanding quad HD display and actually the downgrade in resolution is in fact noticeable for me. Not a big deal though, it may be just me being crazy about some minor details
MaxFTW said:
It's decent in my opinion
I came from Galaxy S6 and its (well, let's face it) outstanding quad HD display and actually the downgrade in resolution is in fact noticeable for me. Not a big deal though, it may be just me being crazy about some minor details
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Click to collapse
Agreed, I'm used to using 2k screen phones and I'm perhaps being a bit OCD about it. The 3T screen isn't bad by any means, I can just see the difference from my old 2k phones which is annoying me. I'm also noticing the PWM on the screen and that's something I've not noticed in phones since I had my old Note 4.
Batfink33 said:
Agreed, I'm used to using 2k screen phones and I'm perhaps being a bit OCD about it. The 3T screen isn't bad by any means, I can just see the difference from my old 2k phones which is annoying me. I'm also noticing the PWM on the screen and that's something I've not noticed in phones since I had my old Note 4.
Click to expand...
Click to collapse
Exactly, I totally agree with you
Such an amazing phone but the 1080 pentile is ugly, you're only getting an effective resolution of around 900p because of it. I feel the phone is spoiled a lot because of this.
sRGB mode is a must also on this panel.
Coming from a Moto X Pure, which has a 1440p display, I can definitely tell the difference, especially when I resize my desktop icons using Nova Launcher, with the display set to small on Nougat. This phone however is blazing fast compared to the Pure, so I'll be getting used to the display and set my icons to a somewhat smaller size (120% instead of 130%.)
I have no reason to root this thing either, except for a custom kernel with KCAL support and using Kernel Adiutor-Mod. None of the sRGB settings are good enough for me. I need Samsung-like bleeding color settings.
EDIT: Solved the blurry icons with Nova by disabling the "Normalize icon size" option.

Just got my S9, but why the screen tend to be more yellow ?

Honesly, i don't expect the screen to be yellowish like that, but it is a bit yellowish only if i view it 90 degrees directly. If i view it from the side, the screen shift to blueish colour
Your guide is so useful since i am a new Samsung user, thanks
What phone are you coming from and what other electronic screens do you have around? The S9 is calibrated to 65K (see color temperature) and can appear yellowish if you are used to other screens that defaults to higher color temperature (including most iPhones/iPads). In that scenario there is nothing wrong with the screen and your eyes will get used to the new white pretty quickly.
On the other hand if your screen appears severely yellow compared to other Galaxy S9s' (e.g. check store models) then you probably should 1) get yours replaced from where you bought it, or 2) contact Samsung tech support.
Thanks for your reply, i come from Xiaomi Mi4i, it is cheaper phone by a large margin, but i don't know why the white seems nicer. Oh and i have another question , when i tilt the screen to the side, the white switch to blueish colour and it seems nicer than staring at the phone on 90 degrees, is that sAMOLED thingies ?
As to your latter question, yes that is an AMOLED thing. As to the first, do this simple test: Go to a room with no direct sunlight and no other electronical screens, where you can just look at the phone's screen without distraction. Use the phone for 10 minutes or so @50%+ brightness as you normally would, without worrying about 90 degree tilting. Do your eyes see the whie as yellow? Or have your eye adjusted to the new screen and white now looks white? If the latter, then your screen is likely just fine.
If you want to see what yellow-white looks like, try "Blue Light Filter." That thing does turn the screen yellow. (maybe you have it enabled now and that is why you are seeing yellow? )
---------- Post added at 03:00 AM ---------- Previous post was at 02:38 AM ----------
I have no first-hand experience with the Mi4i, but judging from what I can see in videos its color temperature is at least at 7500K, meaning it has blue-ish white.
https://youtu.be/RxymBx8rjos?t=68
hi im having the same problem with my s9 brought it yesterday and youtube videos look horrible discolor yellowish
had that issue with my first S8+. compare it with store models to check. my replacement was much better. now I have the S9, and it's definitely not yellowish. it's such a good white balance actually. so if you're not happy with it, exchange it while you can.
Thanks for all of the reply appreciate it, i check to the store and... turns out it is the same white as mine, still like the bluish white on my former phone. Compared to the note series, the note has better white. I tried to change the screen settings to cool, but it appear greenish. @lopri Thanks for the research on Youtube, respect for the additional research
I already calibrate the screen to cool, to overcome the greenish, i turn down the red and green color, now it is better but still can't resist my old phone blue-ish white.
When watching video on youtube it turns orange-ish, it might be because the video enhancer <- Now this is the problem
Before i got the phone, i have an impression that it would have a very great display... , but now it feels -- only good, but not overwhelmingly great like the review said
"· Record small Shifts in Brightness and Color with Viewing Angle, including White."
http://www.displaymate.com/Galaxy_S9_ShootOut_1s.htm
Adjust the display settings. Put display warmth to the highest then reduce red and green to a quarter.
Curious1Person said:
Thanks for all of the reply appreciate it, i check to the store and... turns out it is the same white as mine, still like the bluish white on my former phone. Compared to the note series, the note has better white. I tried to change the screen settings to cool, but it appear greenish. @lopri Thanks for the research on Youtube, respect for the additional research
Click to expand...
Click to collapse
it's possible the store display also has the same issue. mine is bluish white. I went through the same thing as you with my former S8+, in that even changing settings to cool, didn't make much difference. the replacement I got after confirmed that it was the display itself.
Yep, comparing the S9 and S8 side by side the S9 has a yellow tinted screen. The whites aren't as clear even after adjusting the colour settings.

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