yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Nexus] aalin13:
Ok, my brother just bought a SGS2 today, so now I've got a SGS, SGS2 and a GNex to test with (all I need now is a Note)

For the devices I have on hand, when showing white background, both GNex and SGS2 show dirty white with my GNex having streak and green tint not seen on SGS2. I'm talking here about 0% brightness, when cranked up to 20% brightness, the graininess is only visible when staring at the screen very closely.

As for showing a solid black picture in a dark room, as per my previous quote, SGS and GNex both show a very dark grey without any blotches that's very very slightly noticeable, but not enough to be noticed in daily use. The SGS is a bit darker than my GNex. As for the SGS2, it is definitely darker with almost no light at all. However, after my eyes are adjusted to the darkness (~30 sec), I see blotches of grey on it.

I think a black image in a dark room is an extreme case. With my eyes, I find that SGS2 is the best for static white as the grain is less noticeable than the GNex, and with a warmer white than on SGS. If I have to put them in order, it goes like this:

Grain - 1. SGS 2. SGS2 3. GNex

Colour - 1. GNex (I prefer a warmer white, but my GNex has a green tint at the top edge of the screen!!!) 2. SGS2 (less blue tint) 3. SGS (very noticeable blue tint)

As for looking at colour images, the sheer pixel density on the GNex makes it the easy winner for me.
[Samsung Galaxy Nexus] soulcrash:
Just a quick question - i some kind of heavy afterglowing. When i switch from a screen with white shapes to a for example grey colored screen, i have darker shapes in the grey picture where the white shapes where before...
[Samsung Galaxy Nexus] P500:
Probably a short-time branding. AMOLED-displays sometimes have that kind of attribute.

My GN is just fine. I bought it mid December, and the whites at 50% and 100% brightness look fine, so do the coulours and the blacks. I compared them to a Galaxy S and Galaxy S II. This screen is just amazing!

And why would you look at a fully blackened picture in a completely dark room? That phone is made for "normal" usage, lol.

Samsung adjusted it the way it is to prevent an immense battery drain, I think.

€dit: The very small light with black pictures is the way AMOLEDs work. They put a small charge on the pixels to let them switch quickly. That causes the light-emission.
[Samsung Galaxy Nexus] k_myk:
I would be only worried about bed side clock at night :p
[Samsung Galaxy Nexus] clutch88:
there are different qualities of screens for the GN.

i have 2 brand new GN right in front of me and i cannot believe the difference in screen quality.

GN #1:

the deep rich blacks produce yellowish white with vertical banding

gn #2:

very poor blacks, but great bright whites....

i wish i had a camera to take pics side by side.... will update if i can.

i had another unit where i fell in love with the screen, but it had another issue (airplane mode problem) so i returned it. i have a feeling that was the best screen of all.

so i have 3 GN come through my hands in the past month, and they are all of vastly different qualities.
[Samsung Galaxy Nexus] apols:
I don't understand the graininess and banding when my brightness is turned down. I had a Nexus One, which had a first gen OLED pentile screen, and it looked way better. I went to a Verizon store today and compared mine with a demo. Mine looked slightly worse in low light situations (Greys and whites), so I'm not sure if my problem is a defect or how it's supposed to be. I would say my experience closely aligns with the images posted by the OP, but this is surprising after hearing all the raves about the screen in reviews...

This wouldn't be so bad, but the only time I have the screen turned all the way up is in bright situations, otherwise it's too bright. So browsing the Net on my phone in bed is inferior to my Evo 3D and Nexus One
[Samsung Galaxy Nexus] omnibahumut:
I seem to be having a similar problem, but not sure if its just a by product of the type of screen or a defect.

On a white screen at low brightness, there is an obvious brightness or color difference on the bottom of my screen that becomes less noticable as the screen brightness goes up. Not very noticeable on colored backgrounds.

(I have an image but can't post it due to being noobie)

Normal? Defect? Worth trying to get a replacement?
[Samsung Galaxy Nexus] chrisexv6:
Have you noticed your blacks are no longer pure black after making this change?

If I check a solid black screen (or look closely at any screen with a lot of black on it), they look more of a midnight blue than black.

I too have a "warm shift" to my screen. +5 tunes it out pretty well, but Im left with not-so-black blacks. Even +2 and +3 helps, and minimizes the blue-blacks effect.
[Samsung Galaxy Nexus] chrisexv6:
Id appreciate pics if you could get them....Im debating trying to get a replacement shipped to me to compare to my existing GNex.

I can get perfectly black blacks on mine, but for some reason whites look warm (i.e. dingy).

I also have some vertical banding in light to medium gray (think gray on the Market opening screen or the UI settings screen).
[Samsung Galaxy Nexus] adsamcik:
I would also appreciate the picture. I would love to know if that "underlighted yellow-white paper" is normal or its just problem of batch
[Samsung Galaxy Nexus] iansmith:
No display is 100% black, but LED based ones get the closest. As mentioned by another poster, transistors always have a small current so there will be a tiny amount of glow.

Here is a closeup of my Galaxy Nexus with the screen set to black. It was a 15 second exposure.

(Image in attachment since I can't post links yet...)

For comparison, here is an older phone with an LCD next to the GN. 10 second exposure. Quite a difference.

(Image in attachment since I can't post links yet...)

In a completely dark room you can easily see the glow from a Galaxy Nexus set to complete black. But it's VERY dim. In normal lighting, especially with anything at all on the display, the black is near perfect.

As for LCD's... I can READ from the light coming off of any other LCD based display. They have huge light leakage and even in normal lighting the blacks are never even close.
[Samsung Galaxy Nexus] iansmith:
Same experience. I looked at a GN in the store side by side with mine. Made sure both were set to the same brightness settings (not auto!) and the store model was significantly brighter than mine, and the color temperature was notably different.

There seems to be a huge variance in display quality, but it's hard to tell what is defective and what is just 'different' so far.
[Samsung Galaxy Nexus] ploetietoe:
Below are two pictures of the vertical and horizontal banding on my GN. I noticed the same effect on some blue backgrounds but with grey backgrounds the banding is most annoying. Even with brightness set to 100% the banding is still visible. Blacks are fine.
[Samsung Galaxy Nexus] chrisexv6:
Very similar to what Im getting on my Nexus.

My Fascinate also exhibited similar issues, but once the brightness is one or two notches above the lowest possible its almost invisible.

I have a second one en route from WireFly, and I will be keeping the one that is the best combo of screen quality, radio performance, and color temp (in that order, because I think screen banding is the least fixable of those 3 parameters....I have faith in SuperCurio for the color temp, and at some point I think VZW/Samsung/Google will get the radios correct)

I checked 2 VZW stores and 1 of them had one with banding, 1 of them had one with no banding. The color temp seemed warm on both demos (it actually makes changes that Franco made to his kernel quite obvious), and the brightness seemed on par with my own phone.
[Samsung Galaxy Nexus] omr911:
Remember guys,

There are two types of Galaxy Nexus (international versions) available in all markets ..

I paid 430$ USD for my Galaxy Nexus while there is also another cheaper version which cost 370$ USD..

I purchased the expensive version which comes in a slightly bigger box but both boxes look same ..

dont buy online from google etc ..

I think it could be because of different factories which build/make Galaxy Nexus then export .. maybe some of them used low quality material (who know's ??)

my screen is perfect + has no defects .. :good:

at the time of purchasing I was confused too ..

defected ones are in every country ..
[Samsung Galaxy Nexus] Hinouchi:
If it wasn't for this thread I don't think anyone would notice the difference ~XD but what seen can't be unseen!
[Samsung Galaxy Nexus] chrone:
display tester shows that banding color test does have a blur horizontal white line right in the middle of it, thought there's not horizontal white line in other tests.

the colors are so washed out in other apps. everything looks so pale after using htc one v for two months. :D

updated: i found out that setting the brightness to 50%-100% improved the contrast and the colors accuracy and it became more vivid, but still it would be a battery killer. :P

i sometimes found a blurry horizontal white line on each gradient line in the settings grey background, or a blurry vertical white line in message and white background.

if it's possible i don't want to root and flash it to other kernel. but will try later if the replacement still has this defect.

yeah i guess it's almost the same here.

here are photos from nokia cheap camera, sorry could not get the focus to work.
[Samsung Galaxy Nexus] ste1164:
Is it normal for the nexus to have what looks like slight criss crossing lines in grey/darker backgrounds?
[Samsung Galaxy Nexus] ste1164:
This is what it looks like.
[Samsung Galaxy Nexus] chrone:
i have the same exact problem. there are also slight vertical lines in white backgrounds. auto brightness in indoor is not helping too. they somehow disappear though if set to 50% to 100% of brightness, but i bet the battery will drain sooner.
[Samsung Galaxy Nexus] ste1164:
Just got the phone today and im not sure if its a common issue people have lived with or I should return it :/.
[Samsung Galaxy Nexus] chrone:
i do hope nexus phone is better than this. display is what we always see and feel, and this is kind of disappointment. i'm in a middle of RMA here, but still if i'm sent another unit with this kind of problem or even worse, i would not take samsung samoled ever again. :crying:

hope the next nexus will be not using samsung samoled display technology, it sucks.
[Samsung Galaxy Nexus] ste1164:
Same I think I might return mine, it only happens on greys really and the main jellybean wallpaper and its very annoying. I much prefer LCD screens.
[Samsung Galaxy Nexus] Formhault:
Mine is otherwise. Top side of the screen : dark blue. It is because that portion has become less illuminated... as an effect of usage, rofl.

---------- Post added at 01:14 AM ---------- Previous post was at 01:13 AM ----------

Apparently, yes... and this is quite common among AMOLED screens, actually.

---------- Post added at 01:15 AM ---------- Previous post was at 01:14 AM ----------

Mine looks ABOUT the same, but it's visible only when the light is low.
[Samsung Galaxy Nexus] ste1164:
Oh great so I might just stick with my 4S again if all of them will have this issue. I can still see it above 50% brightness it really bugs me :(
[Samsung Galaxy Nexus] rferrerca:
But what really bothers me is that in every technology Website they said this screen was awesome, superb, gorgeous and in fact, the only good think I see are blacks which are truly blacks but nothing else. That 720p resolution is a sh*t if you are in a a Web Page with the lowest brightness, I mean, it becomes blurry and greys are somehow difuminated and unnatural...

I think this will be my last SuperAmoled screen... :mad:
[Samsung Galaxy Nexus] chrone:
i found out a review:

anandtech

hope this helps. :)
[Samsung Galaxy Nexus] chrone:
i found a comparison of these two nexus on other forum.

mine looks like the nexus on the right, very bad color production and brightness and contrast. :crying:
[Samsung Galaxy Nexus] Formhault:
Mine is like that (on the right), too... if I stick to the stock kernel, that is. If I try a kernel that has color control, and I figure what settings are best, I think I'd manage to fix the colors. Otherwise, Trinity kernel already does that - it's got Trinity colors, which basically render all of the colors the way they should (hence, your phone will look like the one in the left).

Trust me... try Trinity.

---------- Post added at 10:57 AM ---------- Previous post was at 10:56 AM ----------

That's the only thing I like about the 4S : the screen. IPS is so much better... and now with AH-IPS, it's even better. I'd rather have that, instead of this Super AMOLED - doesn't really look super to me :rolleyes: .

Don't expect me to switch over to Apple, though. 3.5" & iOS... no, freaking, thanks.

---------- Post added at 10:59 AM ---------- Previous post was at 10:57 AM ----------

Haha. All the reviews I read on the Nexus (about 3 in total, lol), didn't say anything about the screen, so I figured what the hell, perhaps there are only a very small number of defective units. Oh well... Samsung really f*cked up with this 720p screen... they should really stop making such products for the population if they cannot provide QC accordingly...
[Samsung Galaxy Nexus] chrone:
i guess they handpicked the good one and gave them to the reviewers, that's why. :cowboy:
[Samsung Galaxy Nexus] ste1164:
Yep mine is also like the one on the right which sucks aha. & I can live with a small screen and iOS for the moment. I really want a nexus though. :(
[Samsung Galaxy Nexus] alangrig:
Well, this screen is defective for 100%. I had the same issue with replaced screen.

After having exchanged this defective unit, new one had great screen: no black spots, no retention, no purple. no banding, just perfect screen. But, there was serious "but" for me to reconsider for the next exchange, which is in the process: video captures with audio clicking noise from internal logic board.

Samples are downloadable from here:

https://www.dropbox.com/s/gy137iqbi7gem26/VID_20120625_075538.mp4

https://www.dropbox.com/s/9ogs7tkzlm57nt1/VID_20120630_081404.mp4
[Samsung Galaxy Nexus] ste1164:
Those links aren't working for me :(
[Samsung Galaxy Nexus] alangrig:
Links being updated

video captures with audio clicking noise from internal logic board.

Samples are downloadable from here:

https://www.dropbox.com/s/gy137iqbi7gem26/VID_20120625_075538.mp4

https://www.dropbox.com/s/9ogs7tkzlm57nt1/VID_20120630_081404.mp4
[Samsung Galaxy Nexus] chrone:
ouch, that hurts. sorry to know that.

it seems too much features on a phone are too much for samsung's quality control department to handle. :D
[Samsung Galaxy Nexus] coyle_Gyver:
Just bought my Nexus 2 days ago. Everything is just fine with the deep black, but there seems to be a triangle-shaped different color/contrast on my lower left screen. I'm not sure if i should return this phone to the service center or not, because this 'triangle' affecting almost on all colors, especially gray color. When i set the brightness to auto or aroung 10%, the triangle will be more shown than brightness level 100%.

Using the screen test app from playstore, it actually looks pretty normal with no abnormalities.

So is it okay to live with this screen defect?
[Samsung Galaxy Nexus] kms108:
To live with it or not, it's upto you where you can accept the problem, for me it's a swap.

Dead/stuck pixels, dust, in print or burn in is a no no, colour tint is ok if it's not that bad, banding is ok.

As for black patches or spots I have notice many people say they dont have them, for what I've gathered every gnexus and GS3 will have them, depends whether it's alot or little, try going into a total dark room and use the pixel tester app, i'm sure you'll get a diiferent results.

---------- Post added at 03:03 PM ---------- Previous post was at 02:59 PM ----------

What QC department, if they had one this thread won't be 81 pages long.:fingers-crossed:
[Samsung Galaxy Nexus] Formhault:
Had to download the videos so I can ramp up the volume to hear the noises...

Sorry for ya :/

-----

Try to record audio or call someone and swap phones, see if it's noticeable. If it's not, and you don't record videos much, I'd say it's okay, given the fact that the screen is PERFECT.

---------- Post added at 07:00 PM ---------- Previous post was at 06:56 PM ----------

Lol... I think this is either a swap, either a display unit which has been displaying a constant image with that triangle shape there... and it got burned in :) .

Replacement, go for it !
[Samsung Galaxy Nexus] chrone:
nice one! couldn't agree more.. hahaha :good:
[Samsung Galaxy Nexus] coyle_Gyver:
I can actually live with this screen defect, because when I see high-resolution colorful photos and videos, this 'triangle' is not showing at all.

It only appears when i'm using gray-ish screen.

Fortunately, after more thorough checks, I found that my screen is actually pretty good, without any over tinted colors or bending or black-botch or any kinds of screen defects (other than my 'triangle-shaped' burned screen issue), this is one of more reason why I still hesitate to return it to the Service Center.

I also think there is also a possibility if this is kinda refurb/after-service stock, since in Indonesia, i only bought it around $420 while the normal price is around $578. (even it's cheaper, it's still official from Samsung Indonesia)

But on the other side, i still buy this phone with money and it is fully guaranteed by SAMSUNG for the next year.

Maybe tomorrow I'll visit the Service Center, just to gather info about how this will works. Hopefully they have a brand new unit and trade it with mine. Still, I'm afraid if the newer ones will still have the same screen defects or even worse than my current Nexus...

And thanks for your suggestions :)
[Samsung Galaxy Nexus] jmattp:
I just got my Verizon Galaxy Nexus from Amazon Wireless, I noticed it was made in Korea, while the previous - oh I don't know... 15-20 I've seen in various Verizon stores - have been made in China. I got excited immediately because I've read that it might make a difference.

There is barely any purple tint at all! I've been at this for like four months and I finally got one that isn't horrendously purple. Every one I've been through before this one has been obviously purple even at full brightness, and at some times even tinted blue. This one has a slight tint when at 0% brightness, but even then, the dialogue box for the brightness slider does not turn purple, only the really, really dark background, and even then it's not as purple as others I've seen.

Now I just hope this phone doesn't have any other issues at all.

I'm creating a poll to see if purple tinted devices come from China more than Korea.
[Samsung Galaxy Nexus] Formhault:
Good for you, mate (*throws rocks*)

Good idea with that poll.

How about black? Any splotches?

How about white? Is it homogenous?

How about banding?

How about image retention?

How about colors, are they vivid (like in Trinity kernel, if you ever used it)?

How about black holes, are there any?
[Samsung Galaxy Nexus] RedllowFenix:
I want to buy this phone from Google Play Store but seeing all this problems, what do you recommend? I'm not sure what suppose to do.

Thanks!
[Samsung Galaxy Nexus] kms108:
You come into this thread knowing the problem, it's hard for us to comment, it's really upto you, out of 100 phone you may only find 2-3 problem free and thats not 100%.

If you can live with the problem it's a good phone.
[Samsung Galaxy Nexus] jmattp:
Surprisingly... no splotches. I used to see them on the clock app if I dim it. No splotches at all. I tried different wallpapers too and no splotches or weird background shapes. It looks perfect (so far)

I've got a little graininess on the whites, but I can totally live with that because it almost seems intentional, and it's way better than experiencing any other problems. No pink or blue glowing areas.

I see banding in the settings background, but that can be solved by replacing the holo background. I've made a few packages myself for the One X based on something done here which replaces the stock .png with a dithered image, thus eliminating the banding. I'll make one for Jellybean on the Galaxy Nexus when my daughter is done using the computer. It's easy to do if you or anyone else wants to do it.

I don't know what you mean by black holes. Colors look normal I guess. I'm not seeing much ghosting.

It's clearly a different AMOLED display panel than the piles and piles of crap-tier panels used in all the defective ones.
[Samsung Galaxy Nexus] RedllowFenix:
Then, is it too noticeable? I have understood that it occurs when the brightness is on 10% up to 40%
[Samsung Galaxy Nexus] ste1164:
Buy the phone its fantastic. If it has any defects return it.
[Samsung Galaxy Nexus] Formhault:
I too see a bit of banding in the Settings menu... horizontal lines. I see them on grays and very low light white, too.

Graininess is present here, most noticeable on grays, less noticeable on other colors.

Was just kidding about the black holes part, lol.
[Samsung Galaxy Nexus] RedllowFenix:
But the problem is that I don't live in USA, if I buy it from Google Play Store the warranty would take long time :rolleyes:

Do I should take the risk?
[Samsung Galaxy Nexus] ste1164:
Oh right do no where sell it where you live?
[Samsung Galaxy Nexus] RedllowFenix:
Of course yes! But it's too expensive mmm something like $500 with contract...meanwhile on google play store it's being worth $349.
[Samsung Galaxy Nexus] kms108:
Try a pixel tester app with black and go into a total dark room, i'm sure you will see **** load of splotches(it sounds better:victory:)

I kind of liked the black hole thingy.:o

---------- Post added at 09:24 PM ---------- Previous post was at 09:22 PM ----------

Sometime in your life you need to make important descision, the time has come.:angel:
[Samsung Galaxy Nexus] ste1164:
Id pay the extra money personally or get a newer phone for that price.
[Samsung Galaxy Nexus] jmattp:
Oh.. hah. These displays have so many issues, "black holes" could have been some other issue.

Anyway....

So to fix the banding in settings and other parts of the UI, you just replace background_holo_dark.png in framework/framework-res.apk/res/drawable-nodpi with the dithered image.

If you're running Team Liquid V3 Jellybean, try flashing the package linked below in CWM. Don't kill me if something goes wrong. This method worked on ICS for the One X. All it is (you can inspect it if you'd like) is framework.res pulled from the V3 ROM with background_holo_dark.png replaced with the dithered version linked above.

Do a backup in case things go horribly wrong for some reason. I just flashed it on my phone with no problems. But... well, you know. :)

Dithered holo background for settings app and other login/permissions screens.

ONLY FOR TEAM LIQUID V3!!!!!!!!
[Samsung Galaxy Nexus] Formhault:
True, haha.

Hmm... my Settings looks like that .png :) . If that's dithered... I guess we gotta mix it further, lol.

It's not bothering me too much, I can hardly see it, anyway.
[Samsung Galaxy Nexus] NYConex:
i have a couple dark black spots if i change it to a complete black background. is it worth sending it in to get a replacement? will the same problem be there when i get my new one? it doesnt really bother me but if its going to get worse then i probably want to change it. just got the phone yesterday from google play store.
[Samsung Galaxy Nexus] defconoi:
I too have black blobs and purple color on low brightness setting, as far as amoleds my sgs2 has the blobs as well, some devices dont, it depends on where the screen was manufactured. How exactly does the play store advanced replacement work? Will they charge my credit card 381? because I dont got that amount on there or should I make a deposit because I heard they put a hold or charge your card
[Samsung Galaxy Nexus] NYConex:
they put a charge on it then it dissappears until it gets shipped. mine shipped the next day so the charge just stayed. i also pre-ordered the nexus 7 and the charge from my card was there for the first day or two.