Database Users

Purplish Tint?

I noticed that when I turn my brightness down my phone gets a purplish tint but it goes away as the brightness goes up. Is this because its special type of LED screen or the over saturation of colors?

can you post some pics please?

Normal for AMOLED screens. They tend to get a red tinge to them when they dim down.

staulkor said:
Normal for AMOLED screens. They tend to get a red tinge to them when they dim down.
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Alright I guess the technology isn't perfect yet definently not a deal breaker

I was wondering why the light grey look pink in gmail app

I see it as well. A little annoying, but not a giant problem. The blazing speed of the phone kinda makes up for it.

does anybody of you also noticed this thing: http://www.nexusoneforum.net/forum/nexus-one-tech-issues-bug-reports/1199-amoled-display-issue.html ???

eug89 said:
does anybody of you also noticed this thing: http://www.nexusoneforum.net/forum/nexus-one-tech-issues-bug-reports/1199-amoled-display-issue.html ???
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I did notice this as well. Some of the red pixels on the edges of text seemed to have drifted a little too far from the body of the glyph. I actually thought the same thing as this poster - sounds like they need to tweak their "subpixel LCD text" algorithms to match the different layout of the OLED screen.
I'd add to his analysis that subpixel LCD text algorithms typicall employee adjustments for the non-linear response of the pixels (steps of brightness near the dim end of the scale are not the same perceived size as steps of brightness near the bright end of the scale) and OLED may not only have different non-linear response, but it may have different response in each of its R, G, and B pixel elements...
This all should be tweakable in software and is bound to be improved as OLED screens gain popularity.

Blue Tint Problem?

Anyone having the "Blue Tint" problem? it happens when i am on the lowest brightness level and i open up the gmail app the white has a bluish tint. I went to the tmobile store and they exchanged my phone because the display model displayed perfect white when set at the lowest brightness and the gmail app was opened. some euro galaxy s users are also reporting of a blue tint problem when displaying whites. Any one experiencing this?

figtab said:
Anyone having the "Blue Tint" problem? it happens when i am on the lowest brightness level and i open up the gmail app the white has a bluish tint. I went to the tmobile store and they exchanged my phone because the display model displayed perfect white when set at the lowest brightness and the gmail app was opened. some euro galaxy s users are also reporting of a blue tint problem when displaying whites. Any one experiencing this?
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I've got the same issue. I just figured it was a product of the SAMOLED screen, but I guess I'll swing by the T-Mob store tomorrow and see what's up.

I thought it was a little strange that the Gmail client opened and the tint changed a bit. I also figured it was just something that happens with the SAMOLED.
Please give us an update after you stop by the T-mo store.

Yep its blue here too. I sorta thought it was a bit odd, but figured oh well it sure is easy on the eyes thou.

Can you provide an example?
Sent from my SGH-T959 using XDA App

uhh, that's not normal?

When my wife first saw the screen she said there was a blue tint to it but I wasn't able to see it. But now that others are seeing it too, maybe it is a problem.
Here's what I did... I downloaded one of those flashlight apps that turns your entire screen white. I then did a screen shot with Shoot Me app (for root users).
Then I compared the screen shot with the actual screen and took a picture of it.
I'm not sure if this is a good enough experiment since color settings on my monitor can be different but here is a pic for you guys nonetheless.

The Vibrant color temperature appears to be running hot at about 7800K. There should be a way to adjust the color temperature somewhere.

Someone posted about this in the i9000 section.
http://forum.xda-developers.com/showthread.php?p=7272068
Seems like it's an SAMOLED issue, but if others have seen demo phones that appear 'warmer', maybe it's not.

Just got back from my trip to the T-Mob store and played with the demo model and 2 reps personal phones any they all have the same issue. I'm going to chalk it up to it being part of the SAMOLED technology and ignore it. It doesn't bother me at all, but if it was a small group that had the issue, I would have exchanged my phone.

figtab said:
Anyone having the "Blue Tint" problem? it happens when i am on the lowest brightness level and i open up the gmail app the white has a bluish tint. I went to the tmobile store and they exchanged my phone because the display model displayed perfect white when set at the lowest brightness and the gmail app was opened. some euro galaxy s users are also reporting of a blue tint problem when displaying whites. Any one experiencing this?
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This very interesting because I did recognize the blue tint on my phone as well, however my girlfriends phone has a soft yellow tint.
I'm curious what is causing this to happen.
(I remember on the iphones, the old ones had a blue clear tint, while the newer screens had the very same soft yellow tint to it. I know they are two very different screen technology, but it's interesting that I'm seeing it again, except on two of the same batch of phones. I checked the boxes and they are from the same, "litter.")
Anyone find out how we can adjust the color temp on our phones?

I guess, Samsung just averaged this tint. Since blue amoleds with time degrade faster then others, the things will be better at some point and end up with yellow tint several years from now.

iunlock said:
This very interesting because I did recognize the blue tint on my phone as well, however my girlfriends phone has a soft yellow tint.
I'm curious what is causing this to happen.
(I remember on the iphones, the old ones had a blue clear tint, while the newer screens had the very same soft yellow tint to it. I know they are two very different screen technology, but it's interesting that I'm seeing it again, except on two of the same batch of phones. I checked the boxes and they are from the same, "litter.")
Anyone find out how we can adjust the color temp on our phones?
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I took a picture with my Canon 5D...if you look up at the very top at the black strip that goes across where the notifications show up, you can see the color difference.
If you look closely at the picture you can tell the left is blue and the right is yellow.
IT'S MUCH MORE NOTICEABLE IN WITH THE NAKED EYE.
Any thoughts?

iunlock said:
I took a picture with my Canon 5D...if you look up at the very top at the black strip that goes across where the notifications show up, you can see the color difference.
If you look closely at the picture you can tell the left is blue and the right is yellow.
IT'S MUCH MORE NOTICEABLE IN WITH THE NAKED EYE.
Any thoughts?
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First and foremost, I wouldn't call it a "problem," as the thread indicates. It just is what it is and does no harm...
Anyhow here's some pictures I took of the four Vibrants I have. You can definitely see the contrast now. My phone is #4 on far right. Ice cold blue eh? or actually blue flame kelvin hot! It looks like my HID's on my car and the yellow on the other phones look like my stock yellow oem headlights...

Something I noticed today while reading through comments on Endgadget is that every time I would scroll down (or up), the tint would turn more blue as it scrolled. Release my finger from the screen, and the tint would "snap" back to yellow.
The difference in tint is very subtle, but once I caught onto it, I found it distracting.
I cant say I'm able to replicate this behavior on other websites. Google News and NYT, for example, are fine. Furthermore, I'm not seeing it in the XDA app, Gmail, or the Market.
My overall screen brightness is set to 0 and my browser brightness is also at 0.
Anyone else seeing this?

I have an iphone 3G in hand next to my Vibrant. The iphone's browser clearly has a very neutral white, whereas the Samsung presents whites as very blue-green and much dimmer. I have mine set to auto-bright levels. How do you change the browser's brightness independently?

floepie said:
I have an iphone 3G in hand next to my Vibrant. The iphone's browser clearly has a very neutral white, whereas the Samsung presents whites as very blue-green and much dimmer. I have mine set to auto-bright levels. How do you change the browser's brightness independently?
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In browser, Menu > More > scroll down to Brightness Setting.

I have this problem before ,today I got my replacement phone the color is pure white , I think different batch have different color.

cliepals said:
I have this problem before ,today I got my replacement phone the color is pure white , I think different batch have different color.
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Probably the case. Now I'm wondering if it's a setting in the software or if it's a physical LED characteristic?

ohmyggg said:
Something I noticed today while reading through comments on Endgadget is that every time I would scroll down (or up), the tint would turn more blue as it scrolled. Release my finger from the screen, and the tint would "snap" back to yellow.
The difference in tint is very subtle, but once I caught onto it, I found it distracting.
I cant say I'm able to replicate this behavior on other websites. Google News and NYT, for example, are fine. Furthermore, I'm not seeing it in the XDA app, Gmail, or the Market.
My overall screen brightness is set to 0 and my browser brightness is also at 0.
Anyone else seeing this?
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I can replicate this issue on XDA via the brower on any brightness setting. The screen's slight blue (cool) tint becomes yellowy (warm) when I hold my finger on the page or scroll. Additionally, images become noticeably distorted during the hold-tap, so I assume low quality cache images are being generated for smoother scrolling, and the color temperature is accidentally changed as well.
This would appear to be an issue that software fixes may be able to counter (if any of this is indeed a hardware issue in the first place).

[Q] Blue tint on screen normal? Need some help

I recently got a Fascinate and I've noticed that, compared to my dad's Fascinate, the color balance is significantly more blue on my phone at all brightness levels and is especially noticeable when looking at a primarily white webpage such as google's. While it's probably not something I would've noticed had I not had another screen to compare it to, it has really been bothering me and I'm wondering whether I should try to have it replaced before my 30 days is up (It just so happens today is the 30th day).
In trying to find info on this issue I've come across a lot of conflicting accounts about color balance problems on the SF. Some say their phone has the blue tint while others complain of a yellowish tint. One of my worries about exchanging this device is that the blue tint may actually be preferred or even intended on Samsung's part because according to the wikipedia article on OLED:
Additionally, as the OLED material used to produce blue light degrades significantly more rapidly than the materials that produce other colors, blue light output will decrease relative to the other colors of light. This differential color output change will change the color balance of the display and is much more noticeable than a decrease in overall luminance. This can be partially avoided by adjusting colour balance but this may require advanced control circuits and interaction with the user, which is unacceptable for some users. In order to delay the problem, manufacturers bias the colour balance towards blue so that the display initially has an artificially blue tint, leading to complaints of artificial-looking, over-saturated colors. More commonly, though, manufacturers optimize the size of the R, G and B subpixels to reduce the current density through the subpixel in order to equalize lifetime at full luminance.
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The problem is there is no citation given for the section in bold so I cannot be sure if manufacturers are actually using this method. It's possible Samsung uses the "more common" method and my device is simply a defect.
Has anyone had a similar experience with their screen?
Can anyone confirm whether this is intentional or unintentional on Samsung's part?
Do you guys think I should try to get a replacement?
tl;dr
My SF has a bluish tint to the color balance, should I try to get it replaced?

Hmm I noticed my replacement Fascinate had a purplish tint (mainly towards the bottom) on the screen.. This was not apparent on my original.. May it rest in piece(s).

Search for the voodoo project(?) on google.
Btw my screen is more blue than my girlfriends even when I have color fix. Not a big deal.
Sent from my SCH-I500 using XDA App

My Fascinate has a yellow tint - very slight at full bright, but rather noticeable when the phone downshifts to low-brightness.
The one at the store was similar, so I didn't worry about it, but the voodoo folks have a color fix. I have avoided voodoo thus far, so I have no idea how effective it is.

color fix only works at 100% brightness.
Sent from my SCH-I500 using XDA App

Has anyone actually used the alleged "display callibration" software?

And if anyone has, can you tell us A: what parameters it actually lets you change, B: do these changes apply universally or only in certain apps, and C: if this is actually supposed to affect the physical properties of the display in some way (in the way that the contrast control on an LCD TV might), or if it's just doing a Bravia-like trick and messing around with the pixel values?

+1
I don't really need it, but since lots of people talk about it - i'm curious if it's real, because nobody provided any screenshot/details of this feature.

Akiainavas said:
+1
I don't really need it, but since lots of people talk about it - i'm curious if it's real, because nobody provided any screenshot/details of this feature.
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Actually a screen shot has been posted several times. Also apparently it is in the 4.2 test version given to Vodafone

stefanve said:
Actually a screen shot has been posted several times. Als apparently it is in the 4.2 test version given to Vodafone
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Yep according to xiFIL IT'S similar to the
Calibration found in the s2 but better
Sent from my HTC One X using XDA Premium App

Hope it makes a difference

I've used it, it just lets you set the Hue and Saturation.

REAVER117 said:
I've used it, it just lets you set the Hue and Saturation.
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Anything else. Nothing about the contrast?
Sent from my HTC One X using XDA Premium App

i think saturation will fake up the contrast to for normal people

REAVER117 said:
I've used it, it just lets you set the Hue and Saturation.
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http://img.talkandroid.com/uploads/2013/01/sony_xperia_zl_display_calibration-630x472.jpg

That's prolly the one and only screenshot that got out on the web. A real test would be great!
Like make a screenshot with unaltered settings then next is try to adjust it and let us see how big is the difference.

I repeat my earlier question: does anyone know what this software actually does? For example, suppose I'm looking at a screen full of white pixels (red 255, green 255, blue 255), and I've used the software to push the white balance towards red; what does that do? Does it actually change the physical display characteristics of the screen, so I'm now still looking at pixels that are red 255, green 255, blue 255, but the screen has changed the way those RGB values are displayed, (i.e. red 255 is now brighter than it was and blue 255 dimmer); or is it simply hacking what is sent to the screen so that what was originally r255g255b255 is now r255g240b220 (or whatever)? And does this apply universally, or is it a subset of Bravia? And is there anything that can be tweaked other than the three controls we've seen in the screenshot?

Shasarak said:
I repeat my earlier question: does anyone know what this software actually does? For example, suppose I'm looking at a screen full of white pixels (red 255, green 255, blue 255), and I've used the software to push the white balance towards red; what does that do? Does it actually change the physical display characteristics of the screen, so I'm now still looking at pixels that are red 255, green 255, blue 255, but the screen has changed the way those RGB values are displayed, (i.e. red 255 is now brighter than it was and blue 255 dimmer); or is it simply hacking what is sent to the screen so that what was originally r255g255b255 is now r255g240b220 (or whatever)? And does this apply universally, or is it a subset of Bravia? And is there anything that can be tweaked other than the three controls we've seen in the screenshot?
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indeed, hopefully but doubtfully you can change the color temperature of the led(s)

stefanve said:
indeed, hopefully but doubtfully you can change the color temperature of the led(s)
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That seems unlikely, but it's just possible that it might allow you to tweak the display in the same way as you can tweak the red, green and blue "drive strength" on an LCD monitor.

Shasarak said:
That seems unlikely, but it's just possible that it might allow you to tweak the display in the same way as you can tweak the red, green and blue "drive strength" on an LCD monitor.
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would be nice indeed. only time will tell

so can we finally get the fake AMOLED colors now? hehehhe

I've got it today. It doesn't have any screen calibration software. But, trust me, you don't need it
Sent from my C6603 using xda app-developers app

huball said:
I've got it today. It doesn't have any screen calibration software. But, trust me, you don't need it
Sent from my C6603 using xda app-developers app
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but I want fake AMOLED rich color!

It should come in the 4.2 update
Sent from my Nokia 3210 using GPRS

huball said:
I've got it today. It doesn't have any screen calibration software. But, trust me, you don't need it
Sent from my C6603 using xda app-developers app
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Does it have a bluish cast/tinge?

too me it seems that the screen ist brilliant and well balanced (colors). there might be better screens, but this one is awesome...
it's like a mercedes sl...this car isn't the best car, but who wouldn't love to drive it?
but maybe i'm the wrong person to judge about the screen, because i'm upgrading from an htc hd2. and this screen is really old (but i like it, though).

yellow screen?

Is this normal or do I have a faulty unit?
Screen looks very yellow compared to my other phones.

tmzbeme said:
Is this normal or do I have a faulty unit?
Screen looks very yellow compared to my other phones.
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What is the other phone? Go to settings -> display -> color mode and set color to normal, that will normalize it a little. It's set on vibrant by default. Regardless of that setting though, the screen on this phone is a "warm" one compared to others. The phone on the left is "cold" and bluish in comparison. Warm screens are a little more yellow/red, cold are blue. If the other phone is AMOLED there's your reason, but even if it's LCD, it's just tuned a bit differently. You should know that the phone on the left isn't producing a perfect white either, just a kind of white you're used to. Personally I prefer a warm screen, I find colder screens harder on my eyes.
TLDR- it's working as intended.

Unless you screwed with some settings no that isn't normal. If my whites were that yellow I'd return it. While an LCD might never be as white or black as an amoled it shouldn't look like 20 year old yellow paper either. WIth LCDs if you lower the brightness the screen will become more colored but nothing like that. You can also go compare it to some phones at the store that have LCD's and get an idea if its out of whack.

I spoke to two different support people at motorola ...one said it was normal for this phone as the screen was optimized for gaming?? .....the other said it was not normal and I should return it.
I tried using the app 'screen adjuster' to boost the blue light and it did indeed make it look white rather than yellow so it seems to be a color temperature setting so I'm still not sure wether changing the phone would make any difference and I can't compare in stores because they don't have them yet.
p.s. the other phone is an LG G2 which is LCD

Mine seems to have a little yellow at low screen brightness but it doesn't seem as bad as in your photo. I probably would not have noticed if not for this thread. Is your screen brightness low? Mine gets more white as the brightness goes up.
Sent from my XT1575 using Tapatalk

tmzbeme said:
I spoke to two different support people at motorola ...one said it was normal for this phone as the screen was optimized for gaming?? .....the other said it was not normal and I should return it.
I tried using the app 'screen adjuster' to boost the blue light and it did indeed make it look white rather than yellow so it seems to be a color temperature setting so I'm still not sure wether changing the phone would make any difference and I can't compare in stores because they don't have them yet.
p.s. the other phone is an LG G2 which is LCD
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If it bothers you you can go through the return process and see if another one is different. My phone looks pretty much the same next to my Galaxy Note n-7000. That's AMOLED, but AMOLED or not, screens can be bluish. For perspective, here's what white looks like for reference. Neither of the phones are producing white. One is bluish, one is yellowish. Do you notice it when you're not comparing phone screens? After a few minutes of looking at the screen, going from app to app or looking at pictures, do white things register as white?

dustin_b said:
Mine seems to have a little yellow at low screen brightness but it doesn't seem as bad as in your photo. I probably would not have noticed if not for this thread. Is your screen brightness low? Mine gets more white as the brightness goes up.
Sent from my XT1575 using Tapatalk
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I have it on auto-brightness at 50%
Do you notice it when you're not comparing phone screens? After a few minutes of looking at the screen, going from app to app or looking at pictures, do white things register as white?
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I noticed it had a very warm color temp immediately I turned it on, and then got my other phones to compare ....it does bother me yes ...it's like having a TV with a yellowish screen ....I'm pretty sure it can be fixed with a software update and is not a hardware problem which is why I'm not sure if returning the phone would accomplish anything unless I see some other pures to compare
I just found this thread on another forum:
http://forums.androidcentral.com/mo...to-x-pure-edition-screen-has-yellow-tint.html
and this:
I also noticed that the Moto X screen runs a little warm with regard to color temperature. When browsing the web via Chrome, there’s a noticeable yellow tinge, especially when compared with the iPhone 6 Plus’ screen.
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This is mine. I think ambient light may affect it. It looked more yellow when I was in a dark room. This is in a well lit area.
Sent from my Moto X Pure.

Mine is warmer color from 50% to 0%, Higher values and its very white. Didn't even notice it till I saw this post and well, it can't be unseen lol. I keep my display around 10-20% usually on the low side however at night in bed it doesn't look warm at all.

dustin_b said:
This is mine. I think ambient light may affect it. It looked more yellow when I was in a dark room. This is in a well lit area.
View attachment 3478747
Sent from my Moto X Pure.
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When you take screenshot of course it comes white lol wth
@op: is normal, that's what you get for paying this little. Low quality screens. Check androidauthority latest review of the phone, his screen is exactly like yours.
Sent from my SAMSUNG-SM-N920A

yeah, ok so it seems it is quite normal for this phone then, although from the androidcentral forum thread I posted above some screens are more yellow than others and some are actually very white, seems to depend on the batch .....i guess I'll just learn to love it :laugh:

A little Solution:
https://play.google.com/store/apps/details?id=co.uk.quickdoc.screenbalance

Thanks
This app fixed the yellow tint, thank you.