Database Users

Do all the newer/newish Epics/Galaxies have yellow/yellowish displays?

I just got an Epic.
Reading several threads across the Galaxy line, there is apparently a variation in screen color temperatures. From my readings, I see a pattern where perhaps the newer/replacement units have yellower screens. At the same time, those newer units also get darker in auto brightness mode than the older units.
From my own observation, the color temp gets cooler as the brightness increases.
Is it possible that Samsung tweaked the auto brightness so that the phone now gets darker in order to save the battery? So perhaps the different color temp observed are a function of how bright the screen is?
I don't care for the yellowish screen on my new Epic. I like a cooler/colder screen. Comparing the Epic next to my LCD Evo and Touch Pro 2, it is outright yellow. Comparing the 3 phones next to my Nexus One, the N1's screen looks pink. (I can post some pics tomorrow).
Bottom line, I'm trying to decide if I should try to return/exchange the phone for another and hope for the best. I read that there are some potential software solutions out of XDA, but I prefer to have a phone that is natively "cold".
Any input would be great.
Thanks.

Mine's pretty yellow. :-( In brighter light, it is not a problem. Darker screen is the result of a software update. Got mine on launch day.
Sent from my SPH-D700 using XDA App

APOLAUF said:
Mine's pretty yellow. :-( In brighter light, it is not a problem. Darker screen is the result of a software update. Got mine on launch day.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Thanks for the information. Before the software update, when the screen didn't get as dark, did it appear less yellow at the [pre-update] low brightness?
In other words, does the screen now look more yellow than ever since the update and darker screen?
Cheers.

I got my Epic on Oct 1st, and I haven't noticed this yellowish at all, but maybe I need to do a thorough side by side with an older model?
Did you get any pics to post up yet? I'm interested to see this
Edit: Sorry, just saw you said you can't post pics until tomorrow.

snovvman said:
Thanks for the information. Before the software update, when the screen didn't get as dark, did it appear less yellow at the [pre-update] low brightness?
In other words, does the screen now look more yellow than ever since the update and darker screen?
Cheers.
Click to expand...
Click to collapse
Just as yellow as always. Post-update, the screen dims more. At this point, it appears yellower. My Captivate also now dims more, post-update, and seems bluer at dimmest setting.
Sent from my SPH-D700 using XDA App

The only time I've had problems with my screen was when my phone had gotten damage from water. I'm on my 2nd epic and this one doesn't have any yellowish tints. Only about a week old now.
Sent from my SPH-D700 using XDA App

I picked up my Epic on 9/29 and don't see any yellow tint at all. I'm not an expert here but I think I would notice a tint like that. My blacks are very clear and dark also. I did notice that it seemed to run on auto brightness a little darker than it had...that was probably the D-118 update after I had it for only a few days.
I will follow this thread and see where it goes.

I don't think the screen color variation is based on release date. I have two of them since 8/30. One of them has a yellowish tint compared to the other. They both have the same DI18 update.

It seems like a coin-toss what screen color comes. I wish we have a tool that would allow easy color temperature adjustment.
I read a thread about a way using a modified kernel, but it would be nice to have an .apk that works (even if it requires root).

I got one on launch day that had more of a blue tint to it. I got another one last week that was a refurb, and it definitely is more yellow.

Weird. I just got mine today and it's very cool (read: blue) compared to my Evo... being a photo guy, this drives me nuts. I prefer warmer diplays.
Sent from my SPH-D700 using XDA App

I have one of the cooler screens, and I kinda like it.
My thoughts:
1) Samsung is trying to extend the life of the blue oLEDs by altering the color temperature of screens. Since this seems to be happening independently of ROM version, it's probably something they're doing with firmware.
2) (IMO More Likely) The screens on different phones came from different assembly lines or different production runs, and have a slight variance in color production. The production date of the phone wouldn't necessarily matter in this case.
The only project I know that deals with the color temperature of the screen is voodoo:
http://project-voodoo.org/color
I currently have it running on my ROM. It adds a new "very low" brightness setting a the bottom that's much dimmer than even the lowest one available in DI18. (Note: it doesn't interpolate levels between them, either. Meaning there is a big jump in brightness from the voodoo lowest level to the DI18 lowest level, which is the next "notch" up on the slider.) It also adds a brightness level at the very highest brightness, which noticeably makes the display warmer. (The highest and next-to-highest brightness notches are the same brightness, the difference being the highest one is warmer.) At this point of its development, it's really of no use if you want to make your screen warmer at all brightness levels.
At any rate, the project leads me to believe that, with further development, we could have an app that allows us to freely change all the color settings for the display for all brightness levels, save them to profiles, etc.
The idea of the screen getting warmer as you decrease its brightness might be a natural phenomena, or just perceptual. In my experience, colors usually seem warmer as you decrease the intensity of the light. This is even true of light on a physical object.

My screen looks awesome. No yellowing or anything. I wonder if there is a difference based on who made the screen for that particular Galaxy S phone? I remember reading an article when all the Galaxy S phones started rolling out saying that Samsung was having trouble with the manufacturing of the AMOLED screens. Perhaps they started cutting corners.
However, there also seems to be issues with auto-brightness, etc...I have that disabled on my phone and the brightness set on its lowest setting (which is plenty bright for me and all my viewing needs) which may be the difference? But, I have cranked it up from time to time just to show others and I still don't notice any yellowing.
Is there a specific test image or something where one could view that would show/exaggerate the effect people are talking about? I would be curious to see...

Thanks for the great input and information.
Here is something interesting for the Nexus One screen.
http://forum.xda-developers.com/showthread.php?t=745248

Never noticed any of the sort.
Forgive My Brevity. To Be Or Not To Be...

I havent noticed it either. Had mine since day one
Sent from my SPH-D700 using XDA App

http://forum.xda-developers.com/showthread.php?t=745248
Should help in this case once Froyo arrives

Here is a quick picture taken by a Touch Pro 1. Sorry about the quality. I can try to take better ones if there is interest.
From left to right - Evo, Epic, Nexus 1, Touch Pro 2. All with auto-brightness on.
In real life:
The Evo looks whiter (cooler)
The Epic looks much yellower (warmer, almost greenish)
The N1 doesn't look as pink as it appears, but looks the darkest
The Touch Pro 2 looks the whitest (coolest)
To my eyes, the Evo/Touch Pro 2 looks good. Although the picture shows the Epic looking pleasant and only slightly warmer, the white elements (clouds in wallpaper, browser backgrounds etc.) look yellow/green.
Edit: Notice the Menu, Home, Back, Search menu LEDs look whiter than the screen. See the contrast between the two makes the screen look yellower.

I've owned 3 Epics since launch day. First one had a good screen, 2nd one had a yellow tint, 3rd was perfect.
The build dates of the first 2 were 10.08 and my current one is 10.09.

arashed31 said:
I've owned 3 Epics since launch day. First one had a good screen, 2nd one had a yellow tint, 3rd was perfect.
The build dates of the first 2 were 10.08 and my current one is 10.09.
Click to expand...
Click to collapse
By perfect, do you mean that it is not yellowish? It's interesting that the first two phones with the same build date has two different color screens...
The Epic I have has a 10.10 build date. It's yellow at dimmed levels and color temp gets cooler as it brightens up.

Galaxy s2 color profile

Dear owner of galaxy s2,
I'm sure I'm not the only to be bothered by the screen color temperatures totally wrong. Mine tints really to much to blue.
Did someone manage to install a screen color changer ?
Thanks

I think its being worked on. Meanwhile if you go into the screen settings you'll see a setting for display type or something similar. Switch that from Dynamic to Movie and the colours should be more balanced..

It should fix itself over a few weeks, the blue amoleds degrade a lot faster than the green and red

So in a few weeks it degrades faster, does that mean in a few months it would've degraded so much he'll have another issue? I don't think your comment makes sense
Sent from my GT-I9100 using XDA App

The dynamic standard and movies setting are all terrible according to me.
Are you really happy with it ?

godutch said:
It should fix itself over a few weeks, the blue amoleds degrade a lot faster than the green and red
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Click to collapse
In that case, we have to stop using Litening Rom which is blue themed

Draknof said:
Dear owner of galaxy s2,
I'm sure I'm not the only to be bothered by the screen color temperatures totally wrong. Mine tints really to much to blue.
Did someone manage to install a screen color changer ?
Thanks
Click to expand...
Click to collapse
I have bought my 2nd sgs2 yesterday and I found out that this unit has lot of red tint in low brightness. Almost the effect is so high that all those gray bands look like light maroon shades. Samsung has really messed up with these samoledplus displays in sgs2. In my 1st sgs2 the display was quite dull even in 100% brightness compared to other sgs2 displays. Fortunately it was gifted to me so I sold that unit.
But this new unit has new display problem of strong red tint all over the screen affecting gray shade a lot in low brightness mode. The only fortunate thing is that famous yellow tint issue is almost nil and in 100% brightness display is very bright. But I am still gonna ask for brand new replacement of this faulty sgs2 unit.

on2a said:
So in a few weeks it degrades faster, does that mean in a few months it would've degraded so much he'll have another issue? I don't think your comment makes sense
Sent from my GT-I9100 using XDA App
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Click to collapse
http://forum.xda-developers.com/showthread.php?t=1124669

Screen contrast weird thing going on.

Hi
I just noticed something weird going on, the more black I have in the screen the brighter the whites get. Asif the more oleds are turned on its draining more power and making the other oleds loose overall power.
sent from I9100 using Omega

CONTRAST.
jje
Sent from my GT-I9100 using xda premium

To expand, the more black there is around the white, the more white the black seems in comparison, that is contrast.
And as the AMOLED pixel is its own light source the contract is already very high, as a black pixel is an off pixel not giving out any light.

veyka said:
To expand, the more black there is around the white, the more white the black seems in comparison, that is contrast.
And as the AMOLED pixel is its own light source the contract is already very high, as a black pixel is an off pixel not giving out any light.
Click to expand...
Click to collapse
Hence why having a black background saves power and also lessens the chance of screen burn on amoled displays.
Sent from the valley of the shadows....

For me it is the "Auto adjust screen power" on display settings menu.

RE
Yeah i got a bit different. always when i drag the statusbar the screen gets brighter or get flickering someone got this too?

blizzari said:
Yeah i got a bit different. always when i drag the statusbar the screen gets brighter or get flickering someone got this too?
Click to expand...
Click to collapse
Yeah exactly the notification menu dragging makes it really obvious.
sent from I9100 using Omega

goTouch said:
For me it is the "Auto adjust screen power" on display settings menu.
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Click to collapse
Yeah, definitely that. This function is on by default and limits the maximum power drain of the screen, so if there's a lot of white (or bright colors) on screen it will limit the overall brightness in order to save power.
I think it's very irritating and disabled this feature about 1 hour after buying the phone and never turned it back on.

Thanks guys. Auto screen power definitely the culprit. The screen is allot more uniform and "normal" now. Nicer to use.
sent from I9100 using Omega

General consensus on light bleed?

I know I have it a little on mine. Taking a picture of it makes it look worse than it actually is.
Are we all experiencing light bleed, or did some who received their units get a bleed free device?
Sent from my SCH-I535 using xda app-developers app

Very minimal but I don't notice it whatsoever unless I'm specifically looking for it on an all black screen. Some people may have it worse than myself, but I believe a lot of people are exaggerating and/or OCD about the quality of screen light bleed. For me, it doesn't change anything other than it is -the- best screen I have ever used on a tablet.

I don't see any on mine
Sent from my Nexus 10 using Tapatalk 2

duarian said:
I know I have it a little on mine. Taking a picture of it makes it look worse than it actually is.
Are we all experiencing light bleed, or did some who received their units get a bleed free device?
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Maybe I'm lucky, but after thorough analysis I can safely say that my screen doesn't have any light bleed.
My only complaint with the display is the color saturation: I like to use the dimmest screen setting to save battery and my eyesight when using in dimly lit rooms (like right now), but I feel like the colors get washed out when it's at the lowest level. This is fixed when I raise the brightness up to about 5-10%. Perhaps this problem is true for all screens, but compared to my one x, it's more noticeable.

I've got some pretty bad light bleed in the bottom right corner (and a little on the sides as well). It's only really noticeable at high brightness on dark colors (like the black bar in the right corner LOL). I don't find it distracting unless I'm trying to watch a video that has a black letterbox.

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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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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Click to collapse
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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Click to collapse
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.
Click to expand...
Click to collapse

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.