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AMOLED, Super AMOLED or LCD/TFT

I've heard so many mixed perspectives.
The way I see it, S-OLED should be the best in the bunch.
Followed by OLED and then TFT..
I've heard about the nexus display looking "unnatural" from engadget, whatever that means..
Some people are saying that the upcoming sprint evo 4g has a brighter and simply better (4.3") screen.
Apart from the size, the screen technology is just TFT.
In the computer LCD world, i have heard more bad than good about TFT, so what's the deal?
Right now I have a 24" 1080p TFT LCD Monitor, and I think it's beautiful.
I haven't had much to compare it to though.
It's not the greatest screen I've seen, but it's definitely nice.

I have both an HD2 and a Nexus One. The HD2 has a 4.3" TFT display and looks gorgeous. It doesn't have a very defined pixel grid look that you can see if you stare at your Nexus One up close, so it looks more blended.
On the flip side, the Nexus One's vibrancy is hands down better. While watching movies on the HD2, I loved the size of the image, but to be honest, I prefer the color of the Nexus One's screen.
Outside in the sunlight, the HD2 wins. It still gets horrible glare, but no where near as bad as the Nexus One.
With all of that being said, I prefer the Nexus One's screen. Not going to talk about the size differences and their pros and cons, because that's a separate subject altogether. I'm mostly indoors for my job, and being a graphics designer, I enjoy the contrast that the OLED screen can deliver. It's not exactly color accurate, but since this is a phone and not being used as a design device, it doesn't matter...it looks gorgeous. So long as people don't appear as orange aliens, I enjoy the contrast. (Go stare at some of the TVs on display in major retail stores...they jack the contrast up to ridiculous levels to try to wow the viewer, but make things look downright stupid)

I see, that's pretty much like I expected.
The OLED displays will have a more pixel grid display because each pixel is actually a tiny LED. For me that's fine, as long as its not blatant.
So then the best choice would probably be AMOLED that's good in sunlight aka super amoled.
Have you tried playing with the brightness in the sunlight?
I haven't actually experienced an amoled screen yet, but i would think that if you turned the brightness up to max it would like quite okay in the sun.
At least that's how my G1 (TFT LCD) was.
Thanks for the input btw!

From the start I could not understand the positive voices for the AMOLED display. I had a Galaxy and I hated it. Now I have the Nexus and I hate the UNNATURAL colours. They are ghastly! If I had the choice between a Nexus with TFT or AMOLED screen I would certainly pick a TFT.

azalex86 said:
I have both an HD2 and a Nexus One. The HD2 has a 4.3" TFT display and looks gorgeous. It doesn't have a very defined pixel grid look that you can see if you stare at your Nexus One up close, so it looks more blended.
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isnt the supersonics screen a little brighter and more vibrant than the hd2? it sure seemed soo in the pictures and videos i saw

I have the two available high-end android devices - the Milestone (GSM version of the Droid, though with non-unlockable bootloader :-( ) and the Nexus One.
The 'stone has a 854x480 TFT, and the N1 has an 800x480 AMOLED.
Inside, the N1 screen wins - it is incredibly bright, less battery hungry, and has notably better contrast. The Milestone is good, but the N1 is better.
Another N1 advantage is that, even though both screens are 3.7 inches, the milestone is taller and narrower in portrait mode, making the portrait-mode keyboard harder to use for those of us with freakishly-large hands.
Outside, however, it just isn't even close. The Milestone is the best color screen I've ever seen on a large screen phone under bright light. It is absolutely usable in bright sunlight - you can take photos, check out a youtube video, read your RSS feeds, tweets, maps, whatever with absolutely no problem at all. The N1 is almost unusable in direct sunlight - there is just too much glare from the substrate and touch layers. And if you are also wearing sunglasses, forget it, you can't see a thing. Even an iPhone 3GS or iPod Touch (3rd gen) are mush less readable in bright conditions than the Milestone.
Samsung's new S-AMOLED is meant to bond the touch layer into the AMOLED surface directly, taking out a glare / difraction / etc. layer, and making the screen good in bright light. I have my doubts that it will be as good as a strong TFT in those conditions, but we'll see. It will certainly be thinner, better indoors and less power hungry

I don't have yet a N1 but I had the samsung Jet back in fall ,it had an amoled screen. It was quite good under sunlight,colors are washed out but you can clearly read SMS text or use the menu.
Now playing games in summer at the beach at 12am...forget about it and try take spy pics of string gurls with your 5mp

topdnbass said:
I see, that's pretty much like I expected.
The OLED displays will have a more pixel grid display because each pixel is actually a tiny LED. For me that's fine, as long as its not blatant.
So then the best choice would probably be AMOLED that's good in sunlight aka super amoled.
Have you tried playing with the brightness in the sunlight?
I haven't actually experienced an amoled screen yet, but i would think that if you turned the brightness up to max it would like quite okay in the sun.
At least that's how my G1 (TFT LCD) was.
Thanks for the input btw!
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Yeah, even with the Nexus One set to 100%, the readability is around the HD2 with 50-60% brightness outside. Thankfully it is only a problem in direct sunlight.
bobdude5 said:
isnt the supersonics screen a little brighter and more vibrant than the hd2? it sure seemed soo in the pictures and videos i saw
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I believe they are the same screen in both devices, but could be wrong. We'll have to wait until they can do a proper side by side with the exact same lightness settings.
A 4.3" Super AMOLED screen would be nice. I would never buy a phone with a bigger display than that, because it would become uncomfortable to use, and at that point, you might as well just buy a tablet.

Settembrini said:
From the start I could not understand the positive voices for the AMOLED display. I had a Galaxy and I hated it. Now I have the Nexus and I hate the UNNATURAL colours. They are ghastly! If I had the choice between a Nexus with TFT or AMOLED screen I would certainly pick a TFT.
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I would suggest you have a screen that is defective if it has really noticeable colour deviations.
Obviously it's not a properly colour calibrated display, but everything looks perfectly natural on mine (skin tones etc), with no significant over saturation or hue shifts.

yeah, I'm a big outdoor guy and not looking forward to dealing with this screen outdoors....sucks.
Whatever happened to transflective technology...loved that on my old tilt.
Guys, aren't there screen cover/protectors that deflect or whatever and that make the screen readable in sunlight?
thanks

rockky said:
yeah, I'm a big outdoor guy and not looking forward to dealing with this screen outdoors....sucks.
Whatever happened to transflective technology...loved that on my old tilt.
Guys, aren't there screen cover/protectors that deflect or whatever and that make the screen readable in sunlight?
thanks
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There are anti-glare protectors that help eliminate some of the glare by dispursing it better, but even then it's still pretty bad. The main issue is due to having no backlight like a TFT.

GlenH said:
I would suggest you have a screen that is defective if it has really noticeable colour deviations.
Obviously it's not a properly colour calibrated display, but everything looks perfectly natural on mine (skin tones etc), with no significant over saturation or hue shifts.
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No, there is nothing wrong with the colour calibration. Girlfriend has also got a Nexus and I have seen others and even on photos here on the internet you can see the unnatural colours of the screen.
Have a look at the first post where you can find the question, if it were true that the colours are unnatural referring to Engadget. And yes, the colours are unnatural. I like the Nexus, do not get me wrong, but I do not like the colours of AMOLED screens. They are awful.

rockky said:
yeah, I'm a big outdoor guy and not looking forward to dealing with this screen outdoors....sucks.
Whatever happened to transflective technology...loved that on my old tilt.
Guys, aren't there screen cover/protectors that deflect or whatever and that make the screen readable in sunlight?
thanks
Click to expand...
Click to collapse
There are definitely protectors that do that, but I don't like the feel of anything but glass on a touch screen.. That's just me though.
Hey I noticed in your sig that you have an iphone and nexus, how would you compare the two? The screen and everything else (you should make another thread for that though).
azalex86 said:
Yeah, even with the Nexus One set to 100%, the readability is around the HD2 with 50-60% brightness outside. Thankfully it is only a problem in direct sunlight.
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Damn that's pretty bad, cause with the TFT on my G1 I always had to turn it up to max to get a decent display.
So assuming the HD2 is similar (same technology), then AMOLED must be pretty bad in sunlight.
vegetaleb said:
I don't have yet a N1 but I had the samsung Jet back in fall ,it had an amoled screen. It was quite good under sunlight,colors are washed out but you can clearly read SMS text or use the menu.
Now playing games in summer at the beach at 12am...forget about it and try take spy pics of string gurls with your 5mp
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Click to collapse
Lol, spy pics.
big_adventure said:
I have the two available high-end android devices - the Milestone (GSM version of the Droid, though with non-unlockable bootloader :-( ) and the Nexus One.
The 'stone has a 854x480 TFT, and the N1 has an 800x480 AMOLED.
Inside, the N1 screen wins - it is incredibly bright, less battery hungry, and has notably better contrast. The Milestone is good, but the N1 is better.
Another N1 advantage is that, even though both screens are 3.7 inches, the milestone is taller and narrower in portrait mode, making the portrait-mode keyboard harder to use for those of us with freakishly-large hands.
Outside, however, it just isn't even close. The Milestone is the best color screen I've ever seen on a large screen phone under bright light. It is absolutely usable in bright sunlight - you can take photos, check out a youtube video, read your RSS feeds, tweets, maps, whatever with absolutely no problem at all. The N1 is almost unusable in direct sunlight - there is just too much glare from the substrate and touch layers. And if you are also wearing sunglasses, forget it, you can't see a thing. Even an iPhone 3GS or iPod Touch (3rd gen) are mush less readable in bright conditions than the Milestone.
Samsung's new S-AMOLED is meant to bond the touch layer into the AMOLED surface directly, taking out a glare / difraction / etc. layer, and making the screen good in bright light. I have my doubts that it will be as good as a strong TFT in those conditions, but we'll see. It will certainly be thinner, better indoors and less power hungry
Click to expand...
Click to collapse
I know the AMOLED's are pretty great indoors, but when you say incredibly bright... If viewing late at night in bed for example, is it too bright even on the lowest setting?
I'd like a phone that can be very dim or very bright.
Settembrini said:
From the start I could not understand the positive voices for the AMOLED display. I had a Galaxy and I hated it. Now I have the Nexus and I hate the UNNATURAL colours. They are ghastly! If I had the choice between a Nexus with TFT or AMOLED screen I would certainly pick a TFT.
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Have you compared side-by-side? I can't believe that they're THAT bad.

@topdnbass
Have you compared side-by-side? I can't believe that they're THAT bad.
Yes, I have. I do it all the time, as I have still a G1 to compare the Nexus with. If it is "THAT bad" I can't say only that I do not like it and that I would certainly prefer a TFT if had the choice.
Why do you think did the guys from Engadget think the colours to be "unnatural"?
In the end it might not matter that much as it doesn't reduce the functions of the gadget. Other people might even like it, I do not.
S.

Settembrini said:
@topdnbass
Have you compared side-by-side? I can't believe that they're THAT bad.
Yes, I have. I do it all the time, as I have still a G1 to compare the Nexus with. If it is "THAT bad" I can't say only that I do not like it and that I would certainly prefer a TFT if had the choice.
Why do you think did the guys from Engadget think the colours to be "unnatural"?
In the end it might not matter that much as it doesn't reduce the functions of the gadget. Other people might even like it, I do not.
S.
Click to expand...
Click to collapse
i personally love it..the colors pop out they look gorgeous

Compared to TFT capacitive screens Amoled are less good under sunlight but they are still usable and certainly much more than HTC WM phones like Diamond and Touch HD

Settembrini said:
@topdnbass
Have you compared side-by-side? I can't believe that they're THAT bad.
Yes, I have. I do it all the time, as I have still a G1 to compare the Nexus with. If it is "THAT bad" I can't say only that I do not like it and that I would certainly prefer a TFT if had the choice.
Why do you think did the guys from Engadget think the colours to be "unnatural"?
In the end it might not matter that much as it doesn't reduce the functions of the gadget. Other people might even like it, I do not.
S.
Click to expand...
Click to collapse
You seem to put a lot of faith in what Engadget says. I'm not saying that everything is perfectly flat, but I have a few hundred perfectly-exposed photos from my Nikon D90, all taken with pro glass, on my Nexus, and the colors are not bad at all. They are, well, let's call them "well saturated", but nothing remotely unpleasant - to be honest, given the tiny screen (I take photos be be blown up BIG), the saturation is probably an advantage. And they look notably, even considerably better on the N1 than on an iPhone / iPod touch third-gen.
All of that is my opinion - and I like saturated colors. But I also like skin that still looks like skin, and the N1 delivers that to my eyes.

Gee, didn't I say that it is my opinion and that others might think differently? What you call saturated colours I call unnatural and for me and maybe only for me the colours are an eyesore, but I like the Nexus nevertheless.

big_adventure, you gave me a thought.
I think the best way to really compare these technologies is to have the same image of something, like a HQ picture of your skin.
On both of the phones.
Then compare the output to eachother and to the real life color of your skin.
I said to compare to eachother because a cameras snapshot can change the color, flash, settings, and what not.
Sounds stupid, but maybe what some people define as unnatural on a display, is actually quite natural.
Don't compare how the android OS looks, compare an image within the OS.

vegetaleb said:
Now playing games in summer at the beach at 12am...forget about it and try take spy pics of string gurls with your 5mp
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Click to collapse
Well, if you are going to be wandering around a beach at midnight you probably won't run into too many girls to take pictures of. And they'd probably notice the flash going off so it wouldn't be much of a "spy shot".
(Edit: To be fair, http://en.wikipedia.org/wiki/12-hour_clock#Confusion_at_noon_and_midnight mentions that am/pm by definition don't make any sense for noon and midnight and are thus often confused. But, the sources it quotes that do assign meaning to 12am and 12pm all seem to call 12am midnight and 12pm noon. It's probably why most of the parking signs in SF are now starting to use "12:01am" when they want to talk about late night street cleaning restrictions...that, and the fact that 12am is also ambiguous as to whether it refers to the start of a day or the end of a day...)

Blueish screen?

I haven't received my Galaxy S yet but everytime I use my friend's I think the screen is just too blueish. Mostly the white parts. And I also think a "square field" is visible all over the screen. Is this because the resolution is too low compared to the size?
The phone itself is great so I still want it, but I'm afraid the screen will make me disapointed, especially since I've read so much about the Super AMOLED is so great.
Are all Galaxy S' screens like this?

What is the "square field"? please explain better.
And let's start from clearing the point of resolution/size-
800X480 is more than enough to go up to 7". If anything, it might be the pentile matrix that the screen uses.

I guess it's these "squares" I see: http://www.engadget.com/photos/iphone-4-vs-samsung-galaxy-s-display-face-off/#3115591
You're probably right that it's more the pentile matrix I notice more than lack of resolution.
I cant understand why many reviews says this screen is very good when it's very noticable.

I've seen mentions of different Galaxy S phones having different colour temperatures, though mine seems fairly cool.
PenTile does, unfortunately, make text less sharp, and there is a bit of a screen-door effect (I think that's the term you're looking for). It's a tradeoff for having a Super AMOLED screen - excellent contrast and very bright, but not as good as a TFT for text. I've become accustomed to it though, despite my misgivings (but a non-PenTile SAMOLED really would be the best screen without question).

Mithent said:
I've seen mentions of different Galaxy S phones having different colour temperatures, though mine seems fairly cool.
PenTile does, unfortunately, make text less sharp, and there is a bit of a screen-door effect (I think that's the term you're looking for). It's a tradeoff for having a Super AMOLED screen - excellent contrast and very bright, but not as good as a TFT for text. I've become accustomed to it though, despite my misgivings (but a non-PenTile SAMOLED really would be the best screen without question).
Click to expand...
Click to collapse
What's the good side with PenTile? And yes, I've searched for "screen-door effect" and it seems as if that is what I'm seeing.

Yes, Galaxy S display seems to have quite high colour temperature. You can sort of calibrate it using the calibration app that was developed for Nexus One a while ago and is now part of CM6, but you have to run Froyo, install it manually and lose video overlay, so it's not really usable right now. Nevertheless I've managed to calibrate my SGS to more or less 6500K using it.

Case_ said:
Yes, Galaxy S display seems to have quite high colour temperature. You can sort of calibrate it using the calibration app that was developed for Nexus One a while ago and is now part of CM6, but you have to run Froyo, install it manually and lose video overlay, so it's not really usable right now. Nevertheless I've managed to calibrate my SGS to more or less 6500K using it.
Click to expand...
Click to collapse
What is the downside of losing video overlay?

Not being able to play back videos and shoot pictures and videos Or, to be precise - you can do all of that, but all you see is white screen

Case_ said:
Not being able to play back videos and shoot pictures and videos Or, to be precise - you can do all of that, but all you see is white screen
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Click to collapse
Oh. Well, guess I'm not going with that solution then
But since it can be done through software, does it mean that Samsung could make an update and fix this?

I had this on my old galaxy S and coming from the x10's tft it was painfully obvious the white colour had a blue/green tint to it. I then got it replaced and the tint was still there but not so obvious. Now after a while the white colour looks perfect white. I think my eyes have adjusted or something.

rocketpaul said:
I had this on my old galaxy S and coming from the x10's tft it was painfully obvious the white colour had a blue/green tint to it. I then got it replaced and the tint was still there but not so obvious now after a while the white colour looks perfect white. I think my eyes have adjusted or something.
Click to expand...
Click to collapse
Ok, guess I'll have to wait until I get my before I know how bad it is.

My friend got a blueish Galaxy S I9000. Mine isnt that much!! Next to his looks like mine is Redish, but mine next to my Monitor looks blueish! I believe some Screens have more blue tint than others

Mine is very white. Put the phone on a white screen (using a screen torch app) and the screen looks whiter than a piece of white paper.

Hey all, keep us updated if there's any application that can change the color temperature without affecting the functionality.

I got the phone a few days ago and my friend's is defenitly more blueish than mine. I dont notice the screen-door effect anymore so I'm very very happy with it.
Sent from my GT-I9000 using XDA App

I´ve read something on a German Mobile Phone Review Site (don´t know the which one it was now) and they said, that this is normal, because of the AMOLED Tecnology. They said that the Colors will loose the intensity over the years and as blue is the most energetic Color in the spectrum it looses faster the intensity. That is why it looks now maybe a little bit diferent. After a while it should normalise, because it was planned by the manufactures.
Ok found the Site. Heres the translation:
Higher blue components of the display of the Galaxy S may have been deliberately created by Samsung with the idea that the blue OLEDs are aging much faster than green or red. After months of use should mitigate this effect and color balance to be balanced.

djr83 said:
But since it can be done through software, does it mean that Samsung could make an update and fix this?
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Click to collapse
They could do that if they wanted to, yes. But don't expect them to do so, I don't think colour temperature is of any importance to them if it stays within usable range.
zeusalmighty said:
Hey all, keep us updated if there's any application that can change the color temperature without affecting the functionality.
Click to expand...
Click to collapse
Got this tip a while ago on some other thread - you can start Video player, play some video, go to Settings and change the Colour tone to Warm. It stays changed even when you leave the player. It's not perfect, but it helps a bit.

rocketpaul said:
I had this on my old galaxy S and coming from the x10's tft it was painfully obvious the white colour had a blue/green tint to it. I then got it replaced and the tint was still there but not so obvious. Now after a while the white colour looks perfect white. I think my eyes have adjusted or something.
Click to expand...
Click to collapse
Actually, YES! Your eye do adjust to the white that you are looking at.
You've been doing this all of your life and haven't noticed it. The light in the morning is a very different color than the light at noon. In the morning, it is likely very red if the weather is good, and very white at noon... yet everything looks normal to you... because your eyes adapt to the color.
Adjusting to your screen is the same way. But compare it side by side with another screen and one or the other is going to look "wrong", usually the one you haven't been staring at all day!

djr83 said:
I got the phone a few days ago and my friend's is defenitly more blueish than mine. I dont notice the screen-door effect anymore so I'm very very happy with it.
Click to expand...
Click to collapse
Congratulations, your brain has created a special filter, using a process called "adaption", by the human vision scientists, that blocks the screen-door effect. You didn't know it, but your brain created one years ago that blocked out the 'striped-lawn' effect caused by the columns of RGB subpixels on conventional color displays. That 'striped-lawn' effect was just as visible the first time you saw one, but that was likely many years ago.

Okay so this blue tint thing is somewhat strange, still no clear answers.
Some people are saying "this is normal for super amoleds." I have to disagree. If this was normal, then every single Super Amoled would have this blue tint. I've put my samsung galaxy s vibrant side by side next to the samsung galaxy s epic, fascinate, captivate and other vibrants. Some have a blue tint, and others don't. Others have nice rich whites, while some like mine have a blue tint.
Makes no sense, so I'm not buying the "all super amoleds have this blue tint" statement. They don't all have them!
I've used my phone for over 2 months now, and the blue tint is not fading at all. Something else people said. I don't plan to keep this phone for 10 years, waiting for the blue to fade, I want nice white now, not blue whites.
Anyone have any updates on this blue tint some galaxy s phones show?

[Q] NC LCD Whiteness/Brightness Differences?

Hi All,
Newb to XDA forums tough I have been following quite a few of the development threads for weeks now (OC Kernel, Phiredrop ROM, Tablet Tweaks, etc...). First I must say I'm super impressed at all the development being done for the Nook Color, us NC owners are definitely blessed to have an active XDA community full of brilliant developers!
But here's my first question about the Nook Color, has anyone noticed that some Nook units have a whiter/brighter screen than others?
Long story short is I've gone through about 5 NC units bc of various problems and have noticed that two of the five units I've been sent so far have noticeably whiter and brighter screens than the other three. This is with the brightness setting set at the same level on each Nook. It might be a color temperature or RGB setting difference between them, but I have no clue how or why they would be different since they were all factory fresh units. Does anyone know if Barnes at some point changed color settings (within kernel?) or started using different IPS LCD parts during manufacturing at some point? I did notice that the two I had with whiter/brighter looking screens had serial numbers that started with 20111, while the others had SNs that started with 2010 or 20110. Maybe they made some settings or parts changes during the newer production runs?
I know a lot of you might be thinking I'm not judging them under the same lighting or that the brightness settings are set to different levels, but I assure you that I am placing them all next to each other and always set them to the same brightness level for comparison. Admittedly, I am a bit particular about how the quality and appearance of my LCD screens, but even my girlfriend who is not a big tech person can easily tell the difference between the screen by looking at them from a few feet away. She instantly picks out the one that has whiter whites and appears "brighter" (again with brightness set at the same level).
Of course if you don't have two of these units next to each other for comparison it might be hard to see the difference relative to one another, but I can assure you the screen whiteness differences are there between some units. Wondering if there is any way for us to control these settings via kernel changes or some other changes (color temp, hue, RGB)? My problem is that I currently have a perfect unit that has the dimmer screen, and a brighter unit that has a dead pixel and am trying to decide which I should keep and which I should return. I actually prefer the colors and appearance of the one with the whiter screen but get distracted knowing there is a dead pixel. So it's a tradeoff. However, if i know I can change the colors of the screen and make the good unit look whiter/brighter down the line, I will definitely keep that one.
Any thoughts/advice would be much appreciated.
Thanks!

anyway u can post a high def video of this? would help on what your seeing. my nookn color is def a lot yellower than my other devices. but never saw a nook that's whiter than the other

I can try to take a video tonight, but not entirely sure if the color/brightness differences will be captured on the video but i'll give it a shot.
I tried not to use the term "yellow" in my initial post since whiteness level is relative, but that's basically how my gf described it - "That one looks yellower than that other."

yeah, i find whites on my nook very "yellowish" compared to my phone.
too bad there's no settings to change the color temperature on the nook.

Actually, that was one of my questions. Is there any way to change the color temperature of the Nook LCD screen or something along that line via the kernel? I have no clue about kernel parameters, but was hoping someone like Dalingrin, the resident kernel guru, might be able to answer this question? I think I've seen some ppl create apps to update color settings in the kernal for android phones.

I have an NC with serial number started 2004, which has very beautiful screen, but just three dead pixels. so I called B&N to have a replacement, and yesterday, the new one arrived (serial number 20112..). When I have both devices sitting next to each other, I can instantly tell the new one is VERY VERY yellowish (or say, the color is way too warm).
I have to call B&N to have another replacement, and the representative told me the yellowish is a known issue, though happen rarely. My personal experience can tell that even the newer devices may still have the yellowish problem.

There goes my theory about newer serial numbers. Have no clue why some units are yellowish and some a nice white then. But so far out of all the units i've got the ones that had whiter screens all seemed to either have dead pixels or some dirt or other particles stuck underneath the glass, and the ones with the yellowish screen seem to have no other screen defects. Probably luck of the draw, but I've got some pretty bad luck so far then. Love the NC, but I'm thinking the quality assurance is pretty shabby at this point.

RL_Droid said:
Long story short is I've gone through about 5 NC units bc of various problems....
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Click to collapse
Sorry if this is OT, but this is the part of your post that most caught my attention. What the hell are you doing to those poor Nooks? ;-)
But seriously--what the hell?

Lol... as mentioned, two had dead pixels one of them the pixel were dead center, one had dirt under the glass, another had a loose back and a yellowish screen. Now trying to decide which of the two I have left to keep. The one with one dead pixel on the right side but a white screen, and the other that has a yellowish screen but no other issues at all.

I hear u with the yellow tint. had this next to my bros Ipad 2. and the nook was embarrasingly yellow. and my apple fan boi bro said it looks like a macaroni n cheese screen.

Our first had a definite "yellow" tint to it. VERY hard to notice, but I seem to notice every imperfection. Exchanged it and the second looked better. A friend of mine bought one and it had the same yellowish tint. Doesn't bother him though. Says he doesn't see it.

Are you running the stock rom/kernel? I know on CM7 there's definitely a more yellowish tone to the screen than on Nookie Froyo or the stock rom.

RL_Droid said:
Lol... as mentioned, two had dead pixels one of them the pixel were dead center, one had dirt under the glass, another had a loose back and a yellowish screen. Now trying to decide which of the two I have left to keep. The one with one dead pixel on the right side but a white screen, and the other that has a yellowish screen but no other issues at all.
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Click to collapse
Didn't realize there was such inconsistencies with the NCs regarding color temp until I read this thread. Without being able to compare screens I have no problems with mine as it seems pretty good to me, serial 2010xx dated Feb 2011.
I guess I was lucky that the one I bought had a good screen without a single dead pixel. That was the only thing I checked as it was the most important thing to me. Couldn't care less about any other cosmetic issues. Build quality was better than I expected for something of this price, but recently the left side of the bezel has started to creak annoyingly when I hold it.
Definitely can't compare to those tablets twice it's price. But AFAIC, it works very well and with the phenomenal dev support, a Nook running CM7/OC can't be beat.
If I were you, I'd return the one with dead pixel. Built into CM7 there is "Render effect". Besides the night modes, there are some basic calibaration profiles in there. Maybe one of them might make your screen a bit "whiter".
edit: I just checked and it seems all the N1 profiles made my screen seem warmer. I suppose a few more profiles can be implemented, perhaps you should start a petition to the devs?

do Samsung make different screens for the Samsung galaxy s

Hi
i have two Samsung galaxy s i9000
One screen looks a bit dull and slightly pink and the other looks really clear.
The dull one is old.
Both have been flashed with the same Rom and are both set us the same

They should be all the same. Are both phones the same origin-carrier?

Sounds like a problem with the pinkish one. Is your kernel voodoo color enabled ?
(But if the phone is old, it may be that the screen is getting, well, used.)

we sell phones, we have brand new and second hand units, regarding the lcd... sometimes if we change lcd screen theres a different resolution between the china-made lcd which is cheaper than the original lcd we sell. did you.change the kcd before? is it second hand unit

Neither phone has had a screen replaced. I've had both from new.
The pink on is 14 months old and the other is two months old.
Only noticed the old one looks poor when i got the new one.
Ill try take a pic.
Will have to use each phone to do it no camera.
A video of quadrant would really show you. Ill see if i can use my mates phone later

Im sure i read somewhere ages ago that the screen can get burnt like with the really old big back monitors do you think it could be that.
There are no marks like battery or the signal bars like you would expect.
Its like someone messed with the colour and contrast or something

they are both amoled screens, right?
usually it shoult last longer than one year, but amoled has a really short lifetime, compaired to all anorganic screens (e. g. LCD)
expecially the blue subpixels (physicaly more energetic than read light) gets weard out a lot faster
and organic screens get weard faster if they get hot or warmer than they should (cooling the screen extends lifetime (in a bag <-> close to the body)
but this are just some background informations, i cant really imagine that a amoled screen is used up in around a year

try to flash a new and a same ROM
then tell us
this may reset all reselutıon parameter on both of them

Maybe the new one is Galaxy SL. Samsung stopped production on i9000 and started making i9003 with super clear LCD displays. Maybe the new one is that.
Sent from my GT-I9000 using Tapatalk

But amoled has better quality than sc-lcd

But Super amoled screen display a pinkish white when viewed from the side. This was eleminated when Samsung put sclcd displays. So, the old one may be amoled and new one sclcd
Sent from my GT-I9000 using Tapatalk

archdroid said:
But amoled has better quality than sc-lcd
Click to expand...
Click to collapse
AMOLED has better black and bright colors, but it's less clear and has problems with some colors. Mine, for example, has problems with gray: it looks terrible and it turns to red on lower brightness. AMOLEDs are also very different, one producted batch of screens can be pinkish, other one - blueish, third one - yellowish.

Unrealwolf said:
AMOLED has better black and bright colors, but it's less clear and has problems with some colors. Mine, for example, has problems with gray: it looks terrible and it turns to red on lower brightness. AMOLEDs are also very different, one producted batch of screens can be pinkish, other one - blueish, third one - yellowish.
Click to expand...
Click to collapse
Thats right, middle brightness is not so clear.

Note4 AMOLED Screen Quality *updated 11-11 reply from displaymate*

As some of the Note3 members may remember, I made a big thread in Note3 General Forum in regard to the display quality of the Note3,
you can find it here: http://forum.xda-developers.com/showthread.php?t=2463786
Also, I made similar ones on note2 and generally about AMOLED development over time.
So, as I got my new Note4 (Snapdragon) yesterday (from Amazon Germany), it's time to take a closer look on the AMOLED of this brand
new device.
My first impressions are:
The display is overall way better in terms of color shift when tilting the screen, but:
At least on my first device there is a noticable shift in brightness on the right side of the screen, especially on the lower half of the screen.
On dark grey backgrounds (as for example the XDA app with the dark theme has) you can see a contrast or brightness loss on the lower
right corner.
But my unit has an other, more dramatic flaw: On the left side of the screen, just where the lower end of the volume rocker is located, there
is a 0,5mm area of the screen, where it seems like there is something between the screen and the glass, but there is nothing! on light backgrounds
the spot gets darker, on dark backgrounds the spot gets brighter > very annoying!!
But I guess this is a non common flaw, which is really bad luck and has nothing to do with the uneveness mentioned above.
The funny thing is, this time I really thought I wouldn't have to switch devices, because the screen is otherwise really fine, but the spot-flaw
ruins it for me...
So I ordered a replacement today at amazon, as soon as I have this second device I can compare the two in regard to the AMOLED quality,
and then I will update this post!
What are your first experiences with the screen?
Regards,
Markus
Update 19.10.2014
Got my second device on Friday, and I've seen a third device from a friend:
My second device has a better screen in regard to uniformity (no darker right side of the screen), but: it is darker and has a slightly red tint when
viewed from the center. Also, the color shift is worse when tilting the device.
When I lay my three devices (note3, 2xnote4) side by side, enter *#0*# and compare the screens (walking around, looking from different angles),
then my hand-selected note3 has FAR the best performance in terms of neutral white, and tilting color shift is much less then on both note4.
the device from my friend has a worser red tint when looking straight on, but again tilting performance is better then my second device (although
not as good as on my note3)
conclusio so far:
.) note4 has worser tilting performance (color shift when tilting the device) as note3 (maybe due to higher PPI)
.) again, there are huge differences between different devices >> display lottery is back once again!
Update 02.11.2014:
After seeing a lot more of Note4 devices I'm now finally sure that on Note4 the displays vary a lot. "Perfect screens" are very rare, the best one
I've seen so far was on display in a "MediaMarkt" Store in VIenna. It was a display unit (without radio module), but the screen was a lot better then
on my current Note4. White was much more stable when tilting the device...
Today I had the idea of writing to "DisplayMate", because they tested a lot of Samsung AMOLED devices and their reviews always praise this screens
very much. Would be interesting what they would say to our issues:
Here is the mail I wrote them:
Von: TML1504
Gesendet: Sonntag, 02. November 2014 22:25
An: '[email protected]'
Betreff: Samsung Note4 Display Quality (XDA)
Wichtigkeit: Hoch
Dear ladies and gentlemen,
I’m writing to you because you compare and evaluate display devices and rate their screens.
I know your evaluations since years, and I like your scientific approach.
Let me give you a short description of myself:
I’m a consumer electronics freak with a plethora of devices, mostly from Samsung (I do not like
Apples overestimated marketing crap) and I’m especially a freak when it comes to displays. I
owned several AMOLED devices so far (Galaxy S1, S2, S3, Note1-4, Tab7-7, Tab-S(both)) and with
ALL of them I have to exchange them 2-8 (!) times to get one with a decent screen. Trust me, the
devices you get are cherry-picked from Samsung, or if you bought them randomly you must have
been VERY lucky!
I’ve a MSc in engineering and I hold product development lectures at university, so I know what
I’m talking about tech und manufacturing. Believe me, Samsung has big issues when it comes to
display quality. Their luck is that most people do not compare identical devices, therefore most
people would think their screen is ok and not bother.
So, what is the problem:
As you can see here on XDA developers:
http://forum.xda-developers.com/note-4/help/2-white-tones-screen-t2926527
http://forum.xda-developers.com/note-4/general/colour-tint-screen-t2909552
There are some threads in regard to this problem, as well as pictures.
I for myself created one huge thread for Note4:http://forum.xda-developers.com/note-4/general/note4-amoled-screen-quality-t2906365
And for Note3 as well: http://forum.xda-developers.com/showthread.php?t=2463786
If you search you would find a lot of other threads in regard to Samsung’s AMOLED screens.
In short: The displays of otherwise identical units differ A LOT in terms of display quality. If you
buy 10 Note4 devices you will get perhaps 1-2 with a perfect screen, all other devices would
suffer from bad viewing angles (HUGE discoloration when tilting), uneven brightness distribution
(yellow corners, especially right side of the screen and lower half), or very different white tone
when straight viewing on. I did this since note2 this way: Purchase a few devices, select the one
with the best screen and return the others.
I think this has mainly two manufacturing reasons:
1) The panels are cut out of a wafer. Screens from the center of the wafer are perfect, screens
from the side regions suffer from uneven color and/or brightness distribution depending from
where of the wafer they have been cut
2) Uneven or otherwise not proper coating of the screen. A too thick layer perhaps could cause color
problems.
Nevertheless, what bothers me a little bit is that you do not mention any of this in your reviews, and
people think they have a perfect screen. It would be nice if you response to this issues and at least tell
us what your opinion about the reason for such huge quality issues is.
I will post this mail also on XDA, if you want to you can reply directly there.
Thank you for your otherwise brilliant work!
Best regards,
Markus
Update 11.11.2014: Reply from displaymate
Von: DisplayMate Support <[email protected]>
Gesendet: Montag, 10. November 2014 16:25
An: Markus
Betreff: Re: Samsung Note4 Display Quality (XDA)
Thanks for your Email. Feel free to post this.
We get many Emails like yours with every display review article that we publish, with readers sending in comments and sometimes screen shots of their display, or even multiple displays side-by-side to accentuate the differences.
For our public article series we publish the results that we obtain. There is no question that there are always some defective units, substandard calibrations, variations between production lots and within production lots, variations in display performance, variations between displays from multiple suppliers and manufactured in different factories. We have no way to evaluate the scale, frequency, and validity of these issues based on reader Emails so we don't discuss them. All products, from displays to cars, have quality control and variation issues - consumers know this. We simply tell people that if the display is unsatisfactory then return it for exchange or refund.
For LCDs, a well known issue is the variation in the White LEDs used in the backlight - their color, brightness, and power efficiency all vary significantly. Manufacturers pay varying premiums to have the White LEDs pre-sorted into similar performance classes for their products.
We get many more Emails from unhappy iPhone and iPad customers than any other manufacturer. One possible source is that Apple uses many different suppliers for their displays. However, over a one year product cycle we may test a dozen iPhone and iPad units that are sent to us from multiple sources (including Apple competitors), and over many years we have never found any significant variations in display performance in our lab tests. I don't doubt that there are always some quality control and performance variations, but we have never seen any in the large number of Apple products that we have tested.
We don't get many Emails regarding Samsung OLED displays. Most seem to be the result of the sender leaving it in one of the default Vivid modes instead of the accurate (Cinema, Movie or Basic) mode that we use in our tests. Samsung is a single source manufacturer so that is not an issue. We also test many Samsung OLED devices (including many supplied by Samsung competitors) and have never seen any significant display performance variations within a given model. Again, I don't doubt that there are always some quality control and performance variations, but we have never seen any in the large number of Samsung OLED products that we have tested.
In any case, for our public article series we publish the display results that we obtain in our lab.
While it is difficult to get an objective statistical measure of the frequency and size of display performance variations, I highly encourage you to publicize this issue, perhaps via a youtube channel that can act as a central clearing house for this display issue.
Raymond Soneira
President of DisplayMate Technologies Corporation
Tel: 603-672-8500 Web: http://www.displaymate.com

TML1504 said:
As some of the Note3 members may remember, I made a big thread in Note3 General Forum in regard to the display quality of the Note3,
you can find it here: http://forum.xda-developers.com/showthread.php?t=2463786
Also, I made similar ones on note2 and generally about AMOLED development over time.
So, as I got my new Note4 (Snapdragon) yesterday (from Amazon Germany), it's time to take a closer look on the AMOLED of this brand
new device.
My first impressions are:
The display is overall way better in terms of color shift when tilting the screen, but:
At least on my first device there is a noticable shift in brightness on the right side of the screen, especially on the lower half of the screen.
On dark grey backgrounds (as for example the XDA app with the dark theme has) you can see a contrast or brightness loss on the lower
right corner.
But my unit has an other, more dramatic flaw: On the left side of the screen, just where the lower end of the volume rocker is located, there
is a 0,5mm area of the screen, where it seems like there is something between the screen and the glass, but there is nothing! on light backgrounds
the spot gets darker, on dark backgrounds the spot gets brighter > very annoying!!
But I guess this is a non common flaw, which is really bad luck and has nothing to do with the uneveness mentioned above.
The funny thing is, this time I really thought I wouldn't have to switch devices, because the screen is otherwise really fine, but the spot-flaw
ruins it for me...
So I ordered a replacement today at amazon, as soon as I have this second device I can compare the two in regard to the AMOLED quality,
and then I will update this post!
What are your first experiences with the screen?
Regards,
Markus
Click to expand...
Click to collapse
what you are describing is called backlight bleeding

hello00 said:
what you are describing is called backlight bleeding
Click to expand...
Click to collapse
Erm... What you are describing is completely false. Amoled screens don't have backlights.

Warren.D said:
Erm... What you are describing is completely false. Amoled screens don't have backlights.
Click to expand...
Click to collapse
true nvm that

hello00 said:
what you are describing is called backlight bleeding
Click to expand...
Click to collapse
Except Amoled has no backlight.

pete4k said:
Except Amoled has no backlight.
Click to expand...
Click to collapse
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@TML1504, Hey! I do remember your thread at the note 3's forum, was pretty awesome buddy made me change 4 n3's of mine to get a decent display due that that xD 1 thing I'd like to know is does the red still changes to orange even by tilting it a lil bit like on the N3, Ty.

RuchRha said:
@TML1504, Hey! I do remember your thread at the note 3's forum, was pretty awesome buddy made me change 4 n3's of mine to get a decent display due that that xD 1 thing I'd like to know is does the red still changes to orange even by tilting it a lil bit like on the N3, Ty.
Click to expand...
Click to collapse
Yes.

RuchRha said:
@TML1504, Hey! I do remember your thread at the note 3's forum, was pretty awesome buddy made me change 4 n3's of mine to get a decent display due that that xD 1 thing I'd like to know is does the red still changes to orange even by tilting it a lil bit like on the N3, Ty.
Click to expand...
Click to collapse
Yes it does. The colour shift on the note 4 is bad. I still don't understand why reviews are not really mentioning it.
Sent from my SM-N910U using XDA Free mobile app

Warren.D said:
Yes.
Click to expand...
Click to collapse
toadsurfer said:
Yes it does. The colour shift on the note 4 is bad. I still don't understand why reviews are not really mentioning it.
Sent from my SM-N910U using XDA Free mobile app
Click to expand...
Click to collapse
Now that's very disappointing :/

RuchRha said:
Now that's very disappointing :/
Click to expand...
Click to collapse
Yes it is. For me it almost detracts from all the good points about the screen; no point harping on about perfect colour accuracy if you can only see that when viewing the screen from exactly 90 degrees.
Sent from my SM-N910U using XDA Free mobile app

Yeah..it happen to me also..seem like at the right bottom the screen turn into pink white a bit at white background color..but it much better than my note 3..

Id suppose the same screen issues are on the Note 4 as well, lottery time.. I really like the note 4 due to the design but the lottery makes me think twice but maybe ill get it at a later date I wonder though how good are the dark greys on the Note 4, on the note 3 its terrible.

The screen on my device is flawless, I've loaded up that picture of all the wool and everything stands out clearly and vividly. Red is red and Orange is Orange etc.. if I tilt the screen any direction nothing changes, it's perfect.

I've seen six Note 4 phones in various Best Buy stores. All of them had noticeable shifting of colors when tilting the phone left or right, and it did not take much tilting to notice. I've played the screen lottery too many times with Apple products, and the thought of doing it ever again with any product doesn't make me happy.
I'm currently out of contract and was 100% sure that the Note 4 was my next phone. Now I'm not so sure. I have a lot of tolerance for issues that can come up with this technology, but screen quality is not one of those issues.
Disappointing.
The thing is, when looking at any new device, one of the top complaints seems to be screen quality. If I rule out every device because of screen quality, I'll just be stuck on my S3 forever.
I guess I'm on the fence.

Maybe my eyesight is not so good :laugh:

I had the exact same problem with my first N3 that I got. I took it in to at&t and showed them and they replaced it. You couldn't see it on every "screen" but once you could it was evident that something wasn't right.

I too have this problem with colour shift on my Note 4, Can this issue be fixed with a software update?
I never had this problem on the Note 3

OP updated
Update 19.10.2014
Got my second device on Friday, and I've seen a third device from a friend:
My second device has a better screen in regard to uniformity (no darker right side of the screen), but: it is darker and has a slightly red tint when
viewed from the center. Also, the color shift is worse when tilting the device.
When I lay my three devices (note3, 2xnote4) side by side, enter *#0*# and compare the screens (walking around, looking from different angles),
then my hand-selected note3 has FAR the best performance in terms of neutral white, and tilting color shift is much less then on both note4.
the device from my friend has a worser red tint when looking straight on, but again tilting performance is better then my second device (although
not as good as on my note3)
conclosio so far:
.) note4 has worser tilting performance (color shift when tilting the device) as note3 (maybe due to higher PPI)
.) again, there are huge differences between different devices >> display lottery is back once again!

Can the colour shift be fixed by a update?