yashsingh1/xdaforums huggingface dataset:
[Galaxy Note 4 General] TML1504:
Are you too ignorant to read??

The color shift when tilting is just one (and in my opionion the minor) issue:

Much more a problem is the uneveness of the screen (darker bottom and a bright top, redish sides, ...), and that the screens DIFFER a lot when compared side by side!!

This has nothing to do with tilting, the uneveness is there when viewed straight on! I had to exchange my screen/phone a few times to get a decent one!

A solution for the color temperature (also a big difference between different screens) is a custom kernel with inbuilt color manipulation, like the nadia kernel with the program "kkontrol" (see nadia thread)! This improved my screen a LOT from its general yellowish tint, to a almost perfect white. I set Red to 245, Green to 233 and Blue to 256.
[Galaxy Note 4 General] Chillerhippie:
I read the 1st couple of pages and then decided to comment.

All I can say is, I must be one of the lucky ones because my screen is perfect. I did notice the lighter centre spot thing when I was looking at my screen sideways but with my phone display set to Basic with brightness set to auto, I have to say none of the colours are out or anything.

It's hard to imagine how bad these screens can be without any screen shots when you don't have the problems yourself.

Sorry if I came across a bit harsh in my previous post.
[Galaxy Note 4 General] burnin:
My screen is perfect, SM-N910F here, no problems at all! Best display i ever see!
[Galaxy Note 4 General] Cocos20:
Have anyone experienced PWM flickering in their devices?
[Galaxy Note 4 General] rodrigorajao:
Agree.

It's people like them who make everyone else pay through the nose to have nice things. All these unnecessary RMAs cost companies money, which they obviously pass along to their customers.

If you went through 8 RMAs (like someone did with a Nexus device once) and still isn't happy with a product, perhaps it's time to buy something else.

I wish companies would limit the number of RMAs to 2, or charge a 25% restocking fee to make people think twice before returning a supposedly defective unit. And then refund the fee if the unit was actually found to be defective.
[Galaxy Note 4 General] GTCC:
You are not going to get many people to agree with you. I got 4 note 4's when they came out first and they all had screen problems(even when looking straight at the screen) so I returned them all. I just got another one and the screen is as close to perfect(apart from the amoled colours) as you could ask for.
[Galaxy Note 4 General] Cocos20:
GTCC, what was wrong with your screen GTCC?
[Galaxy Note 4 General] istrikerx:
I returned a couple when it first came out due to awful screens. The pink/purple patches make everything look ugly.

Quite honestly for such an expensive device, this thing should be perfect, especially with Samsung making their own panels for it. But overall, the Note 4 has possibly the worst screen I've seen yet from Samsung.

I had another delivered the other day as it was on sale, so wanted to switch back from my Nexus 6 due to it's horrible battery life. Lo and behold, around a 3rd of the way up on the screen theres a horrible black horizontal shadow about 4-5mm in thickness running across the screen.

I dread to think how bad the Galaxy S6 screen is, especially with the ridiculous volume they'll be manufacturing them in.

Oh and to the people crying about others returning loads of phones etc, you make me laugh. You have no right to judge people for trying to get a good product for their hard earned money. Get a life.
[Galaxy Note 4 General] GTCC:
One had a red-pinkish colour on part of the screen and the other 3 had varying amounts of purple on parts of the screen.
[Galaxy Note 4 General] Cocos20:
Ok but you didn't have any PWM flickering?
[Galaxy Note 4 General] GTCC:
What is PWM flickering? If it is the screen flickering(just searched it) then no not at all.
[Galaxy Note 4 General] Cocos20:
There is some threads on this forum about flickering, just search for it. It is sonething many devices use to save battery by regulating the brightness
[Galaxy Note 4 General] xdm9mm:
I've always had screen problems from S3, Note 2, Note 3, Tab Pro 8.4

I think it is samsung's crap QC.

My Note 4 is on the way, i hope I get lucky to have a perfect screen...
[Galaxy Note 4 General] Cocos20:
Ok let's hope you are lucky, please write back and tell us how your screen was, if you noticed any PWM
[Galaxy Note 4 General] trenzterra:
How are you guys coping now, especially those who had uneven tints but decided to stick with it? Does it improve over time, and does your eyes get used to it over time? I just bought an S6 with the same issue... but everything else is fine and it's a pain in the ass to get a replacement where I live, so I was wondering if it's 'livable'.
[Galaxy Note 4 General] usmaak:
I haven't really gotten used to it, and I still see it. I just told my wife the other day about how I love/hate my phone. It's a nice phone with lots of cool features, but the evenness of my screen is really bad. Honestly, I don't use it that often. My wife isn't sensitive to screen issues and she lives on her phone. I just text on it and use it if I have to look something up while I'm away from home. Other than that, it just sits on the counter until I leave the house.

I'm sensitive. I've noticed flaws on every single screen that I've ever had. I just learn to live with it the best that I can.

Love/Hate.
[Galaxy Note 4 General] Cocos20:
Is this an isssue from more as well? Please share your experiences
[Galaxy Note 4 General] Batfink33:
I have no problems with screen colour/unevenness, but the PWM flicker annoys me a lot.
[Galaxy Note 4 General] Cocos20:
Can you see it with the naked eye Batfink33? Very strange that some can see it and others dont. Can it be that some devices dont have it that much and others have it more? Or is it just that some people are extremely sensitive to this?
[Galaxy Note 4 General] Batfink33:
I see it more in bright sunlight or at night when the brightness is low. I can also see it when I move a finger in front of the screen, there's a strobe effect. It annoys me as I'm a bit OCD with my phone and I know it's there. Probably if you asked 99% of the phone buying public they wouldn't know the difference.
[Galaxy Note 4 General] Cocos20:
Very strange, i even try hard to see it, but cant notice any flicker under any circumstances.
[Galaxy Note 4 General] Batfink33:
Maybe some people biologically are more sensitive to it?
[Galaxy Note 4 General] Cocos20:
I think that have to be the case. Have you had any isssues or flickering with other devices in your past?
[Galaxy Note 4 General] Batfink33:
No, never had any issues before. None that I can remember anyway but this is my first AMOLED so maybe that's why.
[Galaxy Note 4 General] Cocos20:
Ok, do you considering replacing your device with another one or go back to LCD phones?
[Galaxy Note 4 General] Batfink33:
No, I'm keeping the Note. It's still got the best features for what I use it for amongst all flagships today. The screens not a deal breaker for me.
[Galaxy Note 4 General] Psycho_MK:
My screen also has some spots that can be seen only if I smudge the specific place with my fingers. But when I wipe the screen with a cloth the spots disappear and cannot be seen under any angle or light. I don't really know what is the cause and I can't be bothered to take the phone for a repair, because in my country the whole replacement/repair system sucks ass (you have to give them the phone and they keep it 10 days to see whats wrong, and you won't get a replacement unless it is really a defect unit).
[Galaxy Note 4 General] Chad_Petree:
I know what flicker is but what PM?
[Galaxy Note 4 General] Batfink33:
Pulse width modulation. When you turn the brightness down, it achieves this by lowering the frequency of the pulse of the light being admitted, like turning a tap down. Some people (like me) can see the decrease in the pulse as it shows like a flicker.
[Galaxy Note 4 General] Chad_Petree:
So in reality is not really turning the brightness, what the display is actually doing is "working on a lowered pulse frequency" ? Isnt this what LG did with the G2 , maybe the G3 (?) and now with the G4 to achieve better battery life? :confused:
[Galaxy Note 4 General] Batfink33:
Not sure about other phones, I never had any issues with the G3 but that was a terrible phone in many other areas. I've never really seen the effect the Note 4 has on other recent flagships, I noticed it out of the box with the N4.
[Galaxy Note 4 General] Cocos20:
Try to install twilight app, set the brightness to max on, and set the dim to a lower setting in the app, i noticed the flicker was less noticable when i record the screen with a camera (i cant see any flickering when i lock at the screen, only when i look at the screen through a camera lens). Try this for those of you see flickering, and write back if this helps :)
[Galaxy Note 4 General] Chad_Petree:
Does it happen only with auto brightness? :confused:
[Galaxy Note 4 General] Batfink33:
No, always. In the dark with the brightness down low, move your finger back and forward in front of the screen and you can see a strobe effect.

It's not a massive issue for me, just slightly annoying sometimes but it doesn't make me want to get rid of the phone or anything.
[Galaxy Note 4 General] Cocos20:
Do you get headaches and eye strain of the flicker or doesn't it bother you in any way except seeing that flicker on the screen?
[Galaxy Note 4 General] Chad_Petree:
Do you guys notice that the display has like a pattern of dots? It's like a texture and when you scroll this texture is on top of everything ? Is not burn in, I don't know how to explain it, but I guess it has to do with the diamond matrix of samsung's AMOLED panels because my Nexus 6 had that "texture" too :crying:
[Galaxy Note 4 General] Cocos20:
So you dont see any flicker but pattern of dots? Can you explain in more detail how you see this?
[Galaxy Note 4 General] Chad_Petree:
I havent noticed the flicker so far, but I have the phone since only 3 days!

It's a bit hard to explain, image that you see something like this (but not as extreme of course ) on top of everything on the phone , but is most noticeable on some small areas, and you notice it specially on white and light grey backgrounds , in apps like the browser, google now , pocket.
[Galaxy Note 4 General] MDaveUK:
I have noticed this too, but it doesn't bother me. Usually the human eye can't notice this speed if the screen or your head/eyes are still, but if one or the other moves very fast that's when you can notice it. In fact I see it as a feature with 2 benfits.

1) It saves battery life by flashing the oled screen at 120hz, with a black frame between every frame you see, instead of having persistent lit pixels. The lower the brightness, the longer amount of time the black frame is there between each frame (and the more battery life saved).

2) This pulse wave modulation helps to keep a low persistence image, which means it lowers or removes motion blur on fast moving content on the screen. You can see this effect when you scroll some text on a white background, usually it looks blurry when you try to track the text with your eyes on a full persistent screen, but with low persistence pixels you can read the text clearer when its scrolling. Watching 60fps video content like sports is great since the motion blur is gone and you can see more clarity.

I also believe because the Note 4 supports the Oculus Gear, VR requires a low persistence screen so head and eye tracking doesn't suffer from nasty motion blur when you turn your head.

I have seen other screens use PWM to help with battery life, it doesn't have to be just OLEDS ;) My Asus Vivotab Note 8 does this too on 25% or lower brightness and that uses a IPS LCD screen. My Vivotab Note 8 is so sweet though, its like the Note 4's big brother :D (can even use the S PEN on it and vice versa because they both use Wacom tech).
[Galaxy Note 4 General] Cocos20:
But some has complained about getting headaches and eye strain of the flickering, anyone of you experienced that? I cant see any dots, maybe some if i tint very hard on the screen, but not on a daily basis
[Galaxy Note 4 General] triton302:
I've been lurking this thread, so I want to post my experience with the Note 4.

My fiance and I had the '13 Moto X, and Motorola definitely cannot get an AMOLED panel correct, horribly yellowish and very uneven, but we only paid $300 full price on sale compared to $600+, so we dealt with it. This phone is what really started my phone screen OCD-ness. We decided to try the iPhone 6+ when it came out, had them both for a week and took them back to the Verizon store, just couldn't get used to iOS. Also, mine had the infamous "yellowing at the top" issue, and even after swapping it out once nothing changed, but hers was perfectly uniform cool white screen. We decided to give the Note 4 a try the first week they came out, and she's had hers since. She has the white version, and as far as I know there is a slight discoloration on the right side, along with a slight variance from top to bottom, but she doesn't notice it. She loves her Note 4, meanwhile mine had the bad pink tint on the lower half, so of course mine goes back. I've tried approximately 8 or 9 different Note 4's since from various retailers, some were almost acceptable, some were god awful like my first one.

I picked up another one this past Thursday from Best Buy and so far, it's the best one I've tested yet. At lower screen brightness, you can see a very slight variance on the right side of the screen and at the bottom, but when the brightness is halfway or higher I don't see it as much. I keep the auto screen tone off and set to AMOLED Cinema mode (I'm used to vivid colors on Samsung phones), and so far I'm learning to live with it. That and Lollipop seems to run well on my phone, enjoying it more than KitKat.

Honestly, I don't think there's a PERFECT screen on any device. As several people mentioned, some are more sensitive to color variances than others, I happen to be one of them. That's what happens when you mass-produce a product, nothing will be perfect. I also noticed the earpiece grille is crooked but not loose, but it doesn't affect the call quality so I've learned to live with it as well. I agree, a device that costs several hundred dollars should be as perfect as possible and so far this one has been closer to perfect than the others I've tried. Hopefully I can convince myself to keep it before my 14 day return period is up. Otherwise, this is an awesome phone.
[Galaxy Note 4 General] Chad_Petree:
I love reading something like this, since my friends think that I'm way too picky and that I'm gonna unsatisfied and miserable in life because I can never seem to be satisfied with what I buy hhahaa :crying:
[Galaxy Note 4 General] xdm9mm:
This screen tint and other screen problem has been there since the days of Galaxy S2. I have had all sorts of screen issues with every galaxy phone I had. I always buy from amazon without contract so if I am not happy, I just return the phone and order a new one. I had to go through FOUR Note 4's before I had one I am happy with.
[Galaxy Note 4 General] triton302:
Well... I can't do it. I tried getting used to the screen, and it bugs me so much that I had to go back to my S3, which is much more consistent than any Note 4 I've tried.

I also had an epiphany today as well. I tried to compare my fiance's screen to mine, ran a bunch of screen tests. She's had hers since Christmas, and already she has noticeable burn in at several areas including the status bar. Not even 6 months and already developing burn in, which is on par with the crappy AMOLEDs on the Moto X's we had. And come to think about it... the best phone I've owned was probably my Rezound, which had the first 720p IPS display, and I loved the display on it. I think that's what attracts me to the iPhone so much, maybe AMOLED devices aren't for me. I obviously don't want an Apple product though.

So at this point I think I'm just going to wait it out with my trusty S3 and see what the LG G4 has to offer. Shame because I like the Note 4, but my OCD goes into overdrive when looking at the screen flaws.
[Galaxy Note 4 General] usmaak:
I am usually pretty particular about screens on electronic devices. So much so that I haven't yet found one that's perfect on any device. I'd have to agree that my S3 has much better consistency than my Note 4. When I got this, I decided not to play the screen lottery like I've done with just about every other phone I've had. I've mostly gotten used to it, but I don't really spend much time on it. My wife lives on her phone. She's a lot less picky than I am. She used an S3 that had a noticeable purple tinge on the bottom third of the screen for over two years.

I use mine a few times a day, maybe a bit more if I am out of the house for a longer period of time. I don't like the Note 4 screen, but I've just accepted that it is what it is, and I'm stuck with it until the next upgrade (October 2016). I'm not going to waste time trying to sell it and I'm not going to blow money on a phone, just so I can stick this one in a drawer somewhere.

That said, one thing that I would not be able to handle is burn in. I'd have to at least bring it back to Verizon to either get it repaired or replaced. That would drive me nuts.
[Galaxy Note 4 General] Cocos20:
trioen302, what kind of screen flaws are you experiencing except for the burn in?
[Galaxy Note 4 General] triton302:
I have sensitive eyes, and this unfortunately lets me see fine details, which brings about my OCD when it comes to display screens. All Note 4's I've seen have uniformity issues. Let me explain.

No AMOLED phone I've seen has a completely uniform screen, including my aging S3. However, I've seen almost perfectly uniform LCD's including HTC's and iPhones. Yes, even LCD's have uniformity issues, but those are more apparent than AMOLED at times to the normal person. I've seen iPhone 6 and 6+'s with an all around even cool white, some have more yellow tinted screens, but again all around they look the same.

AMOLEDs, however, are another story. Every AMOLED phone I've seen has some areas where you'll have either a pink, purple or gray tinting. Most common issue with the Note 4's are one half of the screen white, while the other half has the slightest pink tinting to it. I can see that pink tinting at 25% or lower brightness. Some, like my last one, have the issue with the edge(s) of the screen having the tinting issues. It all comes down to looking an an uneven, non-uniform screen.

I'm sorry, but I'll be damned if I buy a $700 phone and not have it be perfect. I, like a lot of people, have to work hard for a living to afford nice things, and I'm not going to buy a device worth several hundred dollars with a whacked out screen, along with other potential issues like a crooked earpiece grille that may or may not be loose. Call me a perfectionist if you want, but is it too much to ask for a nearly flawless device? :(
[Galaxy Note 4 General] Cocos20:
Ah i understand, i am very happy with the screen, and cant see any isssues with it what so ever, i have the International version though, maybe that is different from others? But do you see any PWM flicker like the ones in this thread who has seen it, triton302?
[Galaxy Note 4 General] triton302:
I did from time to time but not all the time.

Oh, and another thing about AMOLED screens... burn-in. My 2.5 year old S3 has a slight amount of burn in, not too bad. HOWEVER... my fiance's 6 month old Note 4 has some noticeable burn-in and she isn't using it 24/7 like other people might. She says it doesn't bother her, that's fine, but I'd be pissed if again, I buy a $700 phone and the screen starts burning in 6 months later. Hell... my 5+ year old 24" Samsung computer monitor is always being used and since it's an LCD, no burn in, but no issues with ghosting or fading either, still works like it did Day 1.
[Galaxy Note 4 General] uvaman:
As you said on previouse page, there is no PERFECT screen, I would like to point out that nothing is perfect in this world so get used to it... Choose what is best for you and enjoy it.
[Galaxy Note 4 General] triton302:
Thanks for your input? I will choose what's best for me, which is not this phone.
[Galaxy Note 4 General] nedooo:
I agree, still I would like to see burn in repaired :) as soon as we see that...well prepare for zombie attack, dead things are brought back to life :)
[Galaxy Note 4 General] naimmkassim:
You r not alone. My set suffer d same dot..[emoji22]
[Galaxy Note 4 General] Batfink33:
Is it the touch pattern? The way the phone registers a touch on the screen? Every phone has it if so.
[Galaxy Note 4 General] cedropol:
It would be great if happy owners could post here their perfect displays. Maybe some of us don't know that we also have "perfect" panels :)

I wonder if I have a chance to hit better display than I have ATM, and which is in my opinion not perfect, but not crappy as well.
[Galaxy Note 4 General] Chad_Petree:
Is it the diamond pattern maybe? I played around with a G4, which also has a quad HD display but it's LCD and I couldn't see something similar , I think it's an amoled thing
[Galaxy Note 4 General] triton302:
It is. I've played around with the G4 and G3, same resolution of course and they look just fine. Just wish the G4 didn't suck as much, gaming is awful and it still heats up like the G3. But I digress.
[Galaxy Note 4 General] Batfink33:
That's what they get for using the 808. (off topic).
[Galaxy Note 4 General] SirCanealot:
Sorry to bump this thread, but I wanted to vent. Given the disappointment that the Note 5 is (imo) I decided to jump on an N910c. Given it's not released in the UK, it's £450 from a UK website Handtec, which is quite steep for a year old phone but not too bad if I sell my Note 3 to a friend for £100 or so.

Screen looked absolutely amazing as I switched it on. But then realised that on low-medium brightness, white backgrounds (eg, 95% of websites) have a large dark smear on the right side of the screen (reddish/bluish tint). Incredibly frustrating as now I need to send it back and hope the website will be sensible about sending me a new one.

Incredibly frustrating as when there's a ton of colour on the screen it looked fantastic. It's not like I want perfect colours (this screen was a bit too blue and my Note 3 is probably a bit too red), but at least uniform colours would be lovely :(

Hopefully I'll get more lucky with the replacement, but if not I might just give up and stick with my Note 3 for now.
[Galaxy Note 4 General] triton302:
Welcome to my world. In my case, there wasn't a single Note 4 that I tried that had an acceptable screen. Even the S6 I had briefly had issues. AMOLED screens aren't for me. I'll stick with LCD for now, so here's to hoping the Moto X Pure's screen lives up to the reviews I've seen so far.
[Galaxy Note 4 General] HUYI:
Why did you pay so much for a note 4? I brought mine for £370 and sold my note 3 for £128, i think you got screwed both ways by the looks of it and I've never seen so much OCD in one topic, jesus.
[Galaxy Note 4 General] SirCanealot:
My note 2 and 3 screens were great (especially note 2 with AndreiLux's kernel which had a great srgb calibration). Not to start an argument, but I vastly prefer AMOLED to LCD, but if the quality control is that bad, it's difficult to understand the point. Then again, quality control on everything I've been collecting recently has been abysmal*, so it doesn't really surprise me :/

*unfortunately started collecting some toys again recently and you have to check every box in the shop since most of them have vastly different paint jobs, most of them with blatant mistakes. Exactly the same, as I said.. :/

Where did you get an n910c for that much from? UK site? I don't want to order from any of the dodgy sites that ship from Hong Kong...

And OCD is a condition that can have serious ramifications for the people who suffer from it, so it's not really nice to suggest people in this topic have it :)

It's not our fault you haven't trained your eyes enough to see these issues :p