Database Users

Anyone else experiencing screen color temperature variation between devices?

Just got my 1st replacement Nexus in the mail-the first one was exhibiting symptoms of a non-responsive touchscreen after heavy gaming or when exposed to sunlight. The replacement unit is almost flawless, except for one glaring flaw...the white balance on the screen is WAY off! Whites are tinted beige, and the screen looks extremely washed out and warm compared to my first one. Here's a side by side picture (not the best photo, difference is more pronounced to the naked eye).
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I'm tempted to send this one back, but I don't have the time to get stuck in a RMA loop, especially as I'll be travelling this month. What do you guys reckon-should I just keep this device with it's flawed WB, return for a replacement and hope for the best, or return for a refund?
Alternatively, is there any way I can dial out some of the warmness using software? I know there is a color tuning/calibration utility that is included with CM for my Galaxy S-anything similar exist for the N7?

I had the same issue as welll. My recent replacement has better whites bit the screen is still displaying a pinkish tint. My old nexus 7 had a yellowish tint as well. I wonder what the screen temperature is actually supposed to be :\

To the OP you are correct I've started two threads already about the color correction slash grey scale issues. Most agree that Google will not be doing anything about it. Just plain luck or bad luck. Both of those are not bad mine is just in between I would say.
I have linked to this video before http://www.youtube.com/watch?v=MD8n7xaPBMo the way cool blue tint on the unit shown would be grounds for return IMO. Whites need to be white, not yellow warm or cool blue. Just try and do a side by side with an iPad 3 if you can live with the offness then do so, its a lottery at this point.
I started two threads because so many people have said this is an issues, but it varies so much and is so subjective that its doubtful Google will do anything. I prefer the one to the right just because a little cool blue is way better than warm yellow but the New one on the left looks more accurate.
Hows the Backlight bleed?
A good simple test is I go to T-Mobile.com or Engadget their Magenta Pink and Engadget's sky blue are hard to get right. But then again that opens up a new can of worms about your color Gamut and Hue which I am sure also vary device to device. Its obvious by now this is a QC step Google did not require ASUS to perform. Most likely to improve production yields.

IceColdKila said:
To the OP you are correct I've started two threads already about the color correction slash grey scale issues. Most agree that Google will not be doing anything about it. Just plain luck or bad luck. Both of those are not bad mine is just in between I would say.
I have linked to this video before http://www.youtube.com/watch?v=MD8n7xaPBMo the way cool blue tint on the unit shown would be grounds for return IMO. Whites need to be white, not yellow warm or cool blue. Just try and do a side by side with an iPad 3 if you can live with the offness then do so, its a lottery at this point.
I started two threads because so many people have said this is an issues, but it varies so much and is so subjective that its doubtful Google will do anything. I prefer the one to the right just because a little cool blue is way better than warm yellow but the New one on the left looks more accurate.
Hows the Backlight bleed?
A good simple test is I go to T-Mobile.com or Engadget their Magenta Pink and Engadget's sky blue are hard to get right. But then again that opens up a new can of worms about your color Gamut and Hue which I am sure also vary device to device. Its obvious by now this is a QC step Google did not require ASUS to perform. Most likely to improve production yields.
Click to expand...
Click to collapse
Thanks for the informative reply. It's really unfortunate that Asus has dropped the ball so badly with consistency-I can understand lowering some standards for a $200 device to increase production yields, but they've seemingly neglected numerous aspects as evidenced by all the problems the community is having.
As for the new vs old one, the photo is not the best representation-the old device has perfect whites, completely neutral-no tinge of blue at all. Colors gamut is also pretty accurate on the old one. The new one is visibly worse-not only is the white balance off (whites appear beige), but colors are over-saturated and blown out-I noticed a loss of detail immediately just by looking at my wallpaper. Flesh tones are especially bad-much more red than they should be. I even had my roommate do a blind test between the new and old, and he immediately noted that the old device had a "sharper, crisper" screen.
As far as backlight bleed, it's not too bad on both Nexus's (Nexii?). The new one has a bit of bleed in the lower left corner, but it isn't very noticeable and is the least of my concerns at this point. I'm just not sure if it's worth entering the lottery again to see if I can get a better device based on all the horror stories I've been reading here...
Are you aware of any calibration/color tuning utility for the N7? Devs should look into integrating a utility into their ROMs. Something like this:

m3ta1head said:
Thanks for the informative reply. It's really unfortunate that Asus has dropped the ball so badly with consistency-I can understand lowering some standards for a $200 device to increase production yields, but they've seemingly neglected numerous aspects as evidenced by all the problems the community is having.
As for the new vs old one, the photo is not the best representation-the old device has perfect whites, completely neutral-no tinge of blue at all. Colors gamut is also pretty accurate on the old one. The new one is visibly worse-not only is the white balance off (whites appear beige), but colors are over-saturated and blown out-I noticed a loss of detail immediately just by looking at my wallpaper. Flesh tones are especially bad-much more red than they should be. I even had my roommate do a blind test between the new and old, and he immediately noted that the old device had a "sharper, crisper" screen.
As far as backlight bleed, it's not too bad on both Nexus's (Nexii?). The new one has a bit of bleed in the lower left corner, but it isn't very noticeable and is the least of my concerns at this point. I'm just not sure if it's worth entering the lottery again to see if I can get a better device based on all the horror stories I've been reading here...
Are you aware of any calibration/color tuning utility for the N7? Devs should look into integrating a utility into their ROMs. Something like this:
Click to expand...
Click to collapse
Sounds like they are messing with what would be called on HDTV's the Sharpness setting.Its gonna take a subpoena to find out what Google and ASUS knew about the color temperature slash calibration or lack their of, and when they knew it. I smell class action down the road. No way its just not right so many units coming out so differently.

Not only color, but I've noticed noticeable differences in brightness between the 3 I've gotten for RMAs. This new one gets darker and brighter than the previous one.
Sent from my Nexus 7 using xda premium

Mine is pretty much spot on, Except for Blue Links tend to be on the purple side of Blue, enough to start a few threads and ask some questions but definitely not warrant a return.
One thing I have its noticed is that its nice bright and vibrant not at all "washed out" as other have reported. But When I go into Display Brightness, (never Auto brightness) when I move the slider I have like 8 or more different levels of Low brightness below the the Halfway Mark so I can really pick to my licking how low I want the brightness, even on the lowest it maybe too bright for reading a book in a dark room.
But above the halfway mark of brightness I only get about 4 or 5 Steps Up to Max brightness, The last inch or more on the slider toward MAx brightness does nothing. So in essence I reach Max brightness well before the slider is maxed out.

IceColdKila said:
Mine is pretty much spot on, Except for Blue Links tend to be on the purple side of Blue, enough to start a few threads and ask some questions but definitely not warrant a return.
One thing I have its noticed is that its nice bright and vibrant not at all "washed out" as other have reported. But When I go into Display Brightness, (never Auto brightness) when I move the slider I have like 8 or more different levels of Low brightness below the the Halfway Mark so I can really pick to my licking how low I want the brightness, even on the lowest it maybe too bright for reading a book in a dark room.
But above the halfway mark of brightness I only get about 4 or 5 Steps Up to Max brightness, The last inch or more on the slider toward MAx brightness does nothing. So in essence I reach Max brightness well before the slider is maxed out.
Click to expand...
Click to collapse
That is very strange indeed. My brightness slider doesn't exhibit this-it is linear throughout it's range and the lowest brightness setting is quite dim, perfect for reading at night.

XDA developer Supercurio has an app called screen tuning for the Samsung 10.1 that I loved that changed the white temperature, which I believe is the issue. I think an app like this would help significantly.
Its also been said that the nvidia chip settings causes screen wash out after videos or heavy gaming. Its a battery saving measure while watching video or gaming but persists afterwards when it shouldn't. There's an app around here for that. Nut I'm after a color correction.

Kayak83 said:
XDA developer Supercurio has an app called screen tuning for the Samsung 10.1 that I loved that changed the white temperature, which I believe is the issue. I think an app like this would help significantly.
Its also been said that the nvidia chip settings causes screen wash out after videos or heavy gaming. Its a battery saving measure while watching video or gaming but persists afterwards when it shouldn't. There's an app around here for that. Nut I'm after a color correction.
Click to expand...
Click to collapse
The screen tuning app can only be used with AMOLED screens, which the Nexus 7 doesn't have.

Yellow tint on S4 screen

I have this annoying yellow tint on my S4's screen, but disappears when the phone is tilted over 45 degrees. Is this faulty ? Shall I return it ? Or is there a way I can fix the gamma through an app without rooting the phone ?
Brightness set on full
Auto-tone, Auto-brightness disabled
Screen settings set as standard
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I have this too, interested if this is a defect or just the colour tone of the amoled on the gs4

I have the S2 and it's blue compared to my display on computer, and I don't even notice it unless I put it against the computer display like you did.
Maybe try other display calibration, I hear you can change them.

Ok, been doing some google research on this -
There's always going to be a slight yellow tint to the particular amoled screen used in the GS4. However, to reduce the effect, set your screen mode to MOVIE.
Movie mode provides the best colour accuracy and also white point of the available choices. I can confirm this is the case having just spent a few minutes comparing colour charts to my girlfriend's very well-calibrated iphone 5.
So I would set it to MOVIE. The whites still won't be IPS display white, but then IPS can't touch the beautiful blacks on amoled. Horses for courses. Hope this helps.

@paddlyaz can you provide sources of where you got this info ? -- Edit : I just tried it, all that did was make the display washed off..Yellow tint still visible

It may LOOK washed out to you - but this is an AMOLED display, which is naturally very colour saturated.
If you compare the gs4 to an iphone 5 like I did just now, you'll see that even in Movie mode, the colours are a little MORE saturated than even the iphone 5 has to offer. The tint is a side-effect of this. IPS displays like the iphone may offer truer whites but amoled displays like the gs4 destroy them in terms of saturation and black levels.
It all depends on what you prefer on a phone.
In terms of the GS4, some people find the 'dynamic' and 'standard' modes vibrant and eye-pleasing - but they're not at all accurate and will exaggerated, innaccurate representations of your photos, videos etc. I have one photo of me in a yellow jumper (fashion mistake I know). When I have it on 'standard' it looks like I just came back from a two week holiday in Chernobyl. In movie mode, it looks exactly how it looks in real-life (i.e. still disgusting but accurate).
Here are a couple of links that describe it more:
http://www.gsmarena.com/displaymate_tests_galaxy_s4_screen_gives_it_the_thumbs_up-news-5928.php
http://gizmodo.com/5995376/galaxy-s-iv-display-shoot+out-how-does-it-compare

I wish I have another camera to show you the difference between my iPhone and S4 ... The iPhone's screen is bright white compared to the yellow tint on my S4. If this is a "feature" then it's not really efficient now is it =\
Maybe there is a way I can manually edit the gamma, this should fix the problem I guess. Or just exchange it for another one.

did you read ANY of my post?!
It's the trade off you pay for having perfect black levels and saturated colours.
The only way you're ever going to see perfect whites is if you get an iphone/htc one - e.g. an IPS display.
But then you're going to be stuck with 'blacks' that are actually grey. And that SUCKS.
People have differing opinions on which trade-off they'd rather have. Personally I'll take a slightly 'warmer' screen in return for having deep, inky blacks.

Hmm I see, so the display type is the reason why the yellow tint appears eh ? Interesting, thanks for the links too, going to check them out.

all screens will be slightly different from each other - but yes, amoled screens will almost always have either a slight YELLOW tint, or a slight BLUE tint - in other words, a slight exaggeration of one particular tone. If you have the time, do a google search and you'll see this was a common 'issue' flagged up on both the gs3 and gs2.
Your best bet is to do the following:
-set screen mode to MOVIE
-disable 'auto adjust screen tone'
-disable auto brightness.
You will never EVER see perfect whites on an amoled screen, and anyone who tells you they have them is lying out of their arse. Most reviews for the GS4 and also in the articles I linked you state that the GS4 is the most accurate amoled screen so far though.
If still disappointed, your best bet is the iphone5/htc one/nexus 4 etc

I think having an exaggerated blue tone is better than a yellow tone, in my own opinion.

Anyone else having this issue ?

I noticed this playing around with the S4 in the store. Still, much better than the S3 white point.

bad yellow tint
Hi everyone,
I received my s4 last week and found it yellowish as well. I have read everything regarding the screen yellow tint and the fact that it's because of the type of screen. I was going to give up but my girlfriend got one today as well and the comparison is very clear: her whites are so much better!
I have tried to take photos of them, and it looks greenish on the shots but you can see the difference. FYI the screen are both using the same settings: auto brightness off, brightness at the maximum, both screen mode in adapt display (I have tried the movie mode without noticing a change).
Mine is on the right if you couldn't see. You can clearly see the difference in the colour and the quality of the screen. I also noticed that the viewing angle are way worse on mine, the phone takes a greenish colour.
Finally I have very strong smearing/ghosting as soon as the screen background is black. For example when I am in the settings, if I scroll up and down, the thin lines separating the sections actually disappear whilst the menu scrolls. The thicker separator get a purple line until the scolling stops. Once again, the smearing on my girlfriend's phone is existant but much less strong. The thin separators are still visible even while the phone is scrolling.
I am definitely bringing it back to the store tomorrow. I am very disappointed with the screen even though the phone is great. I wouldn't change for a One, just for a good one.

Light_Addict said:
Hi everyone,
I received my s4 last week and found yellowish as well. I have read everything regarding the screen yellow tint and the fact that it's a because of the type of screen. I was going to give up but my girlfriend got one today as well and the comparison is very clear: her whites are so much better!
I have tried to take photos of them, and it looks greenish on the shots but you can see the difference. FYI the screen are both using the same settings: auto brightness off, brightness at the maximum, both screen mode in adapt display (I have tried the movie mode without noticing a change).
Mine is on the right if you couldn't see. You can clearly see the difference in the colour and the quality of the screen. I also noticed that the viewing angle are way worse on mine, the phone takes a greenish colour.
Finally I have very strong smearing/ghosting as soon as th screen background is black. For example when I am in the settings, when I scroll up and down, the thin line seperating the sections actually disappear whilst the menu scrolls. The thicker separator get a purple line until the scolling stops. Once again, the smearing on my girlfriend's phone is existant but much less strong. The thin separators are still visible even while the phone is scrolling.
I am definitely bringing it back to the store tomorrow. I am very disappointed with the screen even though the phone is great. I wouldn't change for a One, just for a good one.
Click to expand...
Click to collapse
This is exactly my problem, let me know what happens with you !

ZaZu90 said:
This is exactly my problem, let me know what happens with you !
Click to expand...
Click to collapse
I had the same yellow tint on screen and tried a few different firmwares thinking maybe its a software issue but nothing fixed it.
Picked up a new s4 last night and this one is perfect. The thing I noticed is the new one is assenbled in Vietnam and the old one
was assembled in China. Over all the build quality on the new one feels much better along with audio quality.
Maybe a quality control issues in some factories
Cheers

farhanali_ said:
I had the same yellow tint on screen and tried a few different firmwares thinking maybe its a software issue but nothing fixed it.
Picked up a new s4 last night and this one is perfect. The thing I noticed is the new one is assenbled in Vietnam and the old one
was assembled in China. Over all the build quality on the new one feels much better along with audio quality.
Maybe a quality control issues in some factories
Cheers
Click to expand...
Click to collapse
Where does it say the location of assembly ? I want to see where mine is. Also, did you exchange your phone for a new one ? How did you convince them it was faulty ?

ZaZu90 said:
Where does it say the location of assembly ? I want to see where mine is. Also, did you exchange your phone for a new one ? How did you convince them it was faulty ?
Click to expand...
Click to collapse
You'll see it when you pull the battery, there should be a sticker there.
I am located in Toronto and we dont have any samsung stores here
so i actually bought another one from this dealer i found on kijiji.
The new one was sealed and its from Hong Kong (but assembled in Vietnam)
Cheers

farhanali_ said:
You'll see it when you pull the battery, there should be a sticker there.
I am located in Toronto and we dont have any samsung stores here
so i actually bought another one from this dealer i found on kijiji.
The new one was sealed and its from Hong Kong (but assembled in Vietnam)
Cheers
Click to expand...
Click to collapse
I looked at mine and it says made in Vietnam... But I would agree to say that there is a problem with quality control overall. My guess is that they need to produce as much as possible to avoid any shortage. I had the same problem with my Note 1 and could be bothered to change it, this time I won't let it go.
I will keep you posted.

Light_Addict said:
I looked at mine and it says made in Vietnam... But I would agree to say that there is a problem with quality control overall. My guess is that they need to produce as much as possible to avoid any shortage. I had the same problem with my Note 1 and could be bothered to change it, this time I won't let it go.
I will keep you posted.
Click to expand...
Click to collapse
I had to go to another branch and thankfully they had a model with a white tone screen. I compared it there and they did indeed see the yellow-tone in my phone. I am getting a refund soon, it's not really worth all this trouble i'm fed up of the customer service experience with Samsung.

Display Calibration Tip

Hey guys, so I've been loving my Xperia z3 apart from one problem - the display. I was unhappy with the blue-leaning cold look. What I wanted was a proper, sRGB industry standard, calibrated screen. But I kept failing to get it right.
I've seen a lot of people sharing rgb values for white balance, and the problem with this is having been into a store I've realised that all the displays are a bit different and in some cases require completely different tuning. The only exception of course being that blue should be kept on 0
_______
I've managed to get my display as close to perfect by doing the following. I'm not a professional so I'm not suggesting this is a sort of gold standard or anything. It's making do:
1) Download this picture to your phone and set your brightness to the bottom instructions: http://www.furthertofly.com/wp-content/uploads/2011/12/brightness_contrast_setting.png
Why? Because after going wrong several times trying to calibrate my display to my macbook, I realized because the brightnesses of panels are different, this can RADICALLY affect how things look as you adjust the sliders.
2) I went into an Apple store and downloaded the above picture onto an IPhone 5c and adjusted the 5c's brightness similarly. Why a 5c? Because every journalist Ive seen on the web (Erica Griffin and Anandtech to name two) both say that the iPhone is the best calibrated display. Hands down. 5c because anandtech say it has the best white balance of any iPhone. (6 is a tiny bit blue/cold apparently)
3) Making sure x-reality and super vivid are off, I downloaded a pure white picture onto both my z3 and 5c and played with the z3's white balance until my phone was nearly perfectly in line with the iphone. Nearly.
Hope this helps someone, I know that sounds a bit OCD and silly to go to that trouble. But my display looks frickin awesome now, and felt this was worth sharing. Yes I know it's a bit amateur-hour....but so what.

Do you mind sharing your settings
Sent from my D6616 using XDA Free mobile app

I think it differs, unit to unit some are bluer than others, my phone is already fairly close to the chart OP put up. So OPs settings may or may not work for you.
Its probably better to calibrate to the chart OP gave, by yourself.

pezlomd said:
Do you mind sharing your settings
Sent from my D6616 using XDA Free mobile app
Click to expand...
Click to collapse
I purposely didn't reveal my settings as the point I was trying to make was that this is where everyone is going wrong. Even to the naked eye, two screens that LOOK comparable actually won't be once you start changing the w/b....
But anyway yeah my final calibration is R:70, G:230, b:0.
I have 20:20 vision (ish) and no colour blindness.
AGAIN, these settings should be absolutely irrelevant to your handset.
It will never be PERFECT because the Xperia uses a blue backlight led as opposed to a white one. So there will always be a little blue favouritism....but my point being you can get to 'almost-perfect' from the out-of-the-box ridiculousness that one finds.
Put it this way, my xperia z3 is now better calibrated than my macbook pro, but not QUITE (maybe 90% as good) as an iPhone 5c.

paddylaz said:
I have 20:20 vision (ish) and no colour blindness.
Click to expand...
Click to collapse
People's eyesight 1) is different to other people's, and 2) changes through age. There's no *right* value. If you go to the same webpage on your monitor, tablet and phone, you'll likely find they all look different.

poldie said:
People's eyesight 1) is different to other people's, and 2) changes through age. There's no *right* value. If you go to the same webpage on your monitor, tablet and phone, you'll likely find they all look different.
Click to expand...
Click to collapse
Yes I know I've never suggested otherwise. I only added those details in case someone (such as yourself) might offer them as reasons for unreliable variability. I just added that to rule out any visual eccentricities that might negatively affect the value of what i was saying.
The fact that it changes through age is irrelevant. I am referencing the screen to something else...so the contrasting reference will be consistent. sRGB calibrations are advanced measurements made using (among other things) wavelength. That's why they are a standard.

paddylaz said:
Yes I know I've never suggested otherwise. I only added those details in case someone (such as yourself) might offer them as reasons for unreliable variability. I just added that to rule out any visual eccentricities that might negatively affect the value of what i was saying.
The fact that it changes through age is irrelevant. I am referencing the screen to something else...so the contrasting reference will be consistent. sRGB calibrations are advanced measurements made using (among other things) wavelength. That's why they are a standard.
Click to expand...
Click to collapse
If you're calibrating your phone so that images you produce in phone are more likely to be reproduced accurately on other people's devices, then you're doing it right.
If, however, you're calibrating your phone to an objective external definition of what is accurate without taking your own eyes into account, you're doing it wrong, because - for example - if you're older and your eyesight is therefore tending towards the yellow then you need to compensate for that, otherwise your spot-on, 100% accurate colour reproduction is going to look too yellow.
Also, bear in mind that absolutely nobodies phone, tablet, monitor, tv etc is calibrated "properly", not are they set to the same brightness/contrast settings, and some people have dynamic this and cinema mode that. Perhaps in the future this'll be handled properly, but not - I suspect- on most consumer equipment.

poldie said:
If you're calibrating your phone so that images you produce in phone are more likely to be reproduced accurately on other people's devices, then you're doing it right.
If, however, you're calibrating your phone to an objective external definition of what is accurate without taking your own eyes into account, you're doing it wrong, because - for example - if you're older and your eyesight is therefore tending towards the yellow then you need to compensate for that, otherwise your spot-on, 100% accurate colour reproduction is going to look too yellow.
Also, bear in mind that absolutely nobodies phone, tablet, monitor, tv etc is calibrated "properly", not are they set to the same brightness/contrast settings, and some people have dynamic this and cinema mode that. Perhaps in the future this'll be handled properly, but not - I suspect- on most consumer equipment.
Click to expand...
Click to collapse
Well I did say it wasn't meant to be professional grade. I'm young, decent eyesight, and there is such a thing as proper calibration in the digital/tech world - sRGB is the international standard for displaying content on the internet for instance. Anyway, I posted my methodology because it's something that someone can do very easily just by popping into an apple store on the way to work etc - much easier than spending ages comparing peoples' posted values that are all going to be even more subjective and open to error.

I've got loads of phones in my shop so i've tried to callibrate it to match other phones, but because the blue level on mine is so high, I just can't get it anywhere near other phones. I've tried Iphone 5c's, 5s's, Xperia Z and Z1, HTC One.
Just can't get the display anywhere near them. They always seem too yellow and my device won't match it so i'm trying very very hard to get used to the blue screen.

abhinav.tella said:
I think it differs, unit to unit some are bluer than others, my phone is already fairly close to the chart OP put up. So OPs settings may or may not work for you.
Click to expand...
Click to collapse
You're right. I returned my first Z3 and I compared it to my second and it was a big difference. My second one has much warmer whites and I don't need to calibrate it.
When I did a warranty exchange with my Nexus 5 the screens looked different as well.

I'm a little lost, what exactly are you supposed to do once you download this Pic?

marc539 said:
I'm a little lost, what exactly are you supposed to do once you download this Pic?
Click to expand...
Click to collapse
Calibrate the screen so you can "barely" see the separation between the black bars.

abhinav.tella said:
Calibrate the screen so you can "barely" see the separation between the black bars.
Click to expand...
Click to collapse
How is this going to address "too warm/too blue" white balance issues?

paddylaz said:
I purposely didn't reveal my settings as the point I was trying to make was that this is where everyone is going wrong. Even to the naked eye, two screens that LOOK comparable actually won't be once you start changing the w/b....
But anyway yeah my final calibration is R:70, G:230, b:0.
I have 20:20 vision (ish) and no colour blindness.
AGAIN, these settings should be absolutely irrelevant to your handset.
It will never be PERFECT because the Xperia uses a blue backlight led as opposed to a white one. So there will always be a little blue favouritism....but my point being you can get to 'almost-perfect' from the out-of-the-box ridiculousness that one finds.
Put it this way, my xperia z3 is now better calibrated than my macbook pro, but not QUITE (maybe 90% as good) as an iPhone 5c.
Click to expand...
Click to collapse
Green at 230? WOW! lol. Little too dramatic, lol. Try Red 36, Green 8, and Blue 0. But then again, my default whiteness isn't too bad. little cool, but just a small nudge in red and green will do the trick!

With default settings my phone is showing a bit warmer / reddish colors. I have to increase the blue color a bit in order to make white background pure white.

z3 dual
what's you're display calibration for z3 dual there, anyone? I guess the z3 dual screen is much better than the single variants.

70/230/0 is far too off to be deemed accurate. All my monitors are calibrated with an i1Display pro and I've visually calibrated my Z3 alongside the monitors to match (169/188/47 RGB):
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
My values won't work the same on any other Z3 as you'd expect but it's a starting point at least I guess.

robbiekhan said:
70/230/0 is far too off to be deemed accurate. All my monitors are calibrated with an i1Display pro and I've visually calibrated my Z3 alongside the monitors to match (169/188/47 RGB):
My values won't work the same on any other Z3 as you'd expect but it's a starting point at least I guess.
Click to expand...
Click to collapse
Robbie, I think you may still have x reality or superivivid enabled, since the red on the headscarf via the z3 is very saturated, I like it like so but the monitor behind it depicts a more purplish subdued red instead.

Nope I have all display processing features disabled as I never liked using them^^

If you just look at your phone screen you won't tell it's blue. Until you hold it directly to a good screen, like a mac, then you will tell its kinda blue with bright images. I won't change the white balance, since I cant tell the difference without a 'real white' screen next to it and I like the brightness. Its nice to be able to read your messages directly in the sun.

Yellow tint/band/gradient/screen/tinge - an Investigation

Introduction
If you own a OnePlus One and have kept up with news covering it, you should already be aware of the infamous "yellow tint/band/gradient/screen/tinge" (how many terms have been coined for this phenomenon?). If not, basically, it's an issue that has evidently plagued some* OnePlus Ones.
*I find that people can be generally divided into four camps:
All OnePlus Ones are perfect, the yellow tint doesn't exist
All OnePlus Ones are affected, none are perfect
Some^ OnePlus Ones are affected to different extents, but most are unaffected
Most^ OnePlus Ones are affected to different extents, but some are unaffected
^The proportion of affected vs. unaffected Ones is very unclear. Both of these cases are based on the fact that there are people who own OnePlus Ones that are completely fine, and the portion of affected users are the vocal minority.
I'm in the third camp. Mine has shown the tiniest bit of tint since day one (bottom 1/10th of the screen, more visible when looking down from above), remained unchanged after a month of owning it, and to this day remains unchanged as of the day before yesterday (17th December 2014).
SPOILER: 1 Month of Use
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
SPOILER: Day Before Yesterday
Pictured: @Aaahh's pretty neat software fix, turned off
I need to learn how to work the manual settings on my camera.
When displaying a prominently white screen/image/webpage, there is a visible yellow "tint" (let's just call it a tint for now) at the bottom of the screen that's "yellow-er" than the rest of the screen, right above where the capacitive buttons are. It is also the edge where the backlight LEDs are situated. Now, its severity depends from case to case, and often it doesn't really affect functionality, but it's there, when it shouldn't be.
OnePlus has kinda addressed this in two threads, but the conclusion was a bit ambiguous. The first thread thread addresses an "overall yellowish hue", and details how OnePlus sources panels from JDI, different factories have different batches, different screen temperatures, other flagship phones also suffer from this etc....and the second thread thread lines up the One with other phones and is seemingly normal.
As far as I know, "officially" speaking, this issue doesn't exist. People have RMA'ed their yellow tinted One (success? failure?), others who have purchased multiple Ones have the tint on all of them (at different extents, never subsided), and some other stuff. I couldn't keep track of it all.
So, knowing me, I downloaded the RAW files from the second aforementioned thread and checked the EXIF data. I'm sure their one wasn't affected, so it wasn't to determine whether the image was doctored. I just wanted to know all of the settings they used to take those two pictures, so I could replicate those shots. It's a good opportunity to try out my Canon 450D!
Note that the Canon 6D is a full frame camera, and the Canon 450D is a crop frame, so there's a crop factor difference of 1.6x. Full frames also capture more light than crop frames, among other differences like how the 450D is only 12.2 MP and doesn't have multi-segment metering...it was free though, so I can't complain :silly:
Picture 1: f/4, 1/125 s, ISO 100, 24-105 @ 47 mm, no flash, using Manual mode and multi-segment metering (+ a whole bunch of other stuff)
Picture 2: f/4, 1/25 s, ISO 320, 24-105 @ 50 mm, no flash, using aperture-priority AE and multi-segment metering
My attempt at replicating those pictures (to emulate the wider angle of a full frame, I used a 32 mm focal length instead of ~50 mm, which also changed the aperture from f/4 to f/4.5):
Left is unaltered original, right is messing around with levels
Picture 1: f/4.5, 1/125 s, ISO 100, 18-55 @ 32 mm, no flash, using manual mode and center-weighted average metering
Picture 2: f/4.5, 1/20 s, ISO 400, 18-55 @ 32 mm, no flash, using aperture-priority AE and center-weighted average metering
I'll see if I can upload my RAWs too.
Conclusion? I'm a noob at Photoshop/photography. But I can see why people alter the picture and take them at extreme angles; it's too hard to capture on camera. You see it with the naked eye, but it's really hard to capture what you see using a camera.
From the second thread:
Another thing to consider when seeing photos of the yellow band problem is that a lot of the photos were taken at extreme angles with Contrast and Levels changed for more visibility. We have been able to replicate some of the pictures posted here by playing with the Levels settings in Photoshop and the angle at which the picture was taken. We have attached the raw files and settings used to manipulate them in Photoshop below so you can download them and reproduce these images.
Some people have complained that their screen’s yellow hue is due to a “bad” batch. This is not true. JDI and OnePlus extensively test the quality of the screens, and while the factory hue of the screen may vary slightly by batch, we can recreate the level of “yellowness” through software changes.
Click to expand...
Click to collapse
Interactive part! To those who have a yellow tint that's more visible than mine, take a picture of it and post it below.

Different Circumstances?
Yes, I am aware that the screen temperature variation and unevenly diffused backlight/yellow band issue plagues not only the OnePlus One. This will be covered in the posts after this one.
In OnePlus' first explanation thread, some points were made; OnePlus deliberately chooses warmer displays for aesthetics, different batches have varying color temperatures, the latest CM11S update (as of 21 June 2014) is calibrated to be warmer to avoid fatigue, and we are reassured that this can be rectified through software.
I think not all Ones have a distinctively warmer display (I must've missed that warmer displays window), because my One's display looked pretty cool on CM11S 38R, and still looks pretty cool on PA 4.6 Beta 6 at stock settings (PA doesn't have any options to change the tone of the screen) when compared with the iPhone 6+. Say what you will about Apple, but the iPhone 6 Plus makes a great reference display device, because it's factory calibrated to full sRGB standards (quoting an Apple Store Genius (lol) and Apple's specs page).
Here's the iPhone 6 vs. the OPO on LiquidSmooth Lollipop:
Since PA is not CM11S, it doesn’t have a default warm screen temperature bias. I have been told that PA uses a "stock" color profile. Whether this is stock CM11S or stock AOSP I'm not sure. I will flash 44S (edit: probably not) on my One whenever I can. I wish I hadn’t encrypted it. In order to remove the encryption, the whole internal storage (all my stuff and the system) has to be wiped too, and I'm having difficulty backing up the contents. (encryption works on PA 4.6 for the OPO btw, but only use it if you really need it; TWRP doesn't get themed if you encrypt the phone)
After occasionally looking into it on-and-off and not really yielding any definitive results, it can be deduced that there are a few main possibilities that may contribute to this yellow tint:
The backlight LEDs were placed too close to the visible display area of the LCD, so the light didn't have enough room to fully diffuse before becoming visible, resulting in the yellow tint ("the "all ones are affected" camp)
Due to high demand and low supply, the factory at which the screens were produced were forced to ramp up production, rushing the LOCA curing process, resulting in some phones having "undercooked" displays that have a yellow tint localized at the bottom portion (the "some Ones are affected" camp)
Something could be up with the actual backlight diffuser in the LCD
A combination of 1 and 2, because the tint is coincidentally localized where the backlight LEDs are
Heresy
I will try and investigate the validity of possibilities 1, 2, and 3 (3 mightn't be by me, because I don't have access to an OPO LCD that can be dismantled). I can't do anything about number 5.

Possibility 1: Backlight Placement
This was explained by a OnePlus team member:
1. Our fans have also brought up a yellow band the bottom of the screen fearing it may be a quality issue. It is not. Since brightness influences color temperature, the yellow tint at the bottom is due to the design of the phone. There are 14 backlights under the screen, which were not meant to be uniformly distributed along the screen but to be all at the bottom. Since we needed to make the screen shorter, the lights were put very closely to the edge. If we didn’t, we’d have a leakage of light.
Click to expand...
Click to collapse
We are assuming this is a design characteristic (the "all Ones are affected" camp). I thought the bolded part sounded weird, because if the LEDs were placed further from the edge, wouldn't those 14 visible spots be hidden from view?
Also, after some quick Googling, apparently:
Brightness is a human perception, and luminance is an objective measurement
Brightness ≠ luminance
Color temperature affects brightness, not the other way round
That powerpoint was for entertainment lighting systems though, and it didn't specify whether the brightness and color temperature thing applied to halogens or LEDs.
The HTC One X/XL has a very similar display backlight configuration to that of the OnePlus One. The backlight array starts from the bottom edge, and it also has three backlit capacitive buttons.
The difference is the HTC One X/L's backlight diffuser extends over the capacitive buttons (requiring extension things to provide button backlight), and the OnePlus One's extends over it not as much (those white bits allow light to shine through the capacitive buttons, see two pictures ago).
Also, the back of the LCD is stuck on the chassis, making removal without damaging the LCD very difficult (more difficult than the OnePlus One). This one broke when it was removed from the frame
For this investigation, I'm going to measure the lengths of the screen bezel on the side where the backlight LEDs are (from where the display area ends to the edge of the glass), and from where the backlight diffuser assembly ends to the edge of the glass. Subtracting the second measurement from the first measurement will give us the distance that the backlight has before its light can be seen through the LCD.
Note: the accuracy of the measurements below aren't guaranteed.
OnePlus One
12.94 - 6.63 = 6.31 mm from end of backlight to visible display area
Sony Xperia Z
15.44 - 9.02 = 6.42 mm from end of backlight to visible display area
LG Nexus 5
14.96 - 9.56 = 5.4 mm from end of backlight to visible display area
Motorola Moto G (1st gen)
18.23 - 8.77 = 9.46 mm from end of backlight to visible display area
HTC One M4 Mini
10.81 - 2.83 = 7.98 mm from end of backlight to visible display area
iPhone 5
15.68 - 11.01 = 4.67 mm from end of backlight to visible display area
Apple iPhone 4S
19.71 - 14.12 = 5.59 mm from end of backlight to visible display area
LG G2
10.80 - 5.58 = 5.22 mm from end of backlight to visible display area
I don't think the measurements were very accurate, but from what we've got, the placement of the backlight LEDs shouldn't alter the color temperature of the display. The OnePlus One's placement is on-par with other phones' placement, so those spots may be more of a diffuser problem.

Possibility 2: Under-cured LOCA (Liquid Optical Clear Adhesive)
This possibility was speculated by users, and was not addressed by OnePlus. It has been said that exposing the OnePlus One's display to UV light or sunlight (apparently, 5-10 minutes in UV, 1-2 hours in sun) completes the curing process, thereby eliminating the tint. (will find sources when I have the time, it has also been said that this doesn't fix the tint/band)
Edit: might as well try the sunlight fix. I'd actually have to buy the UV lamps, and wait for them to post. Since my tint is barely noticeable, it's worth a shot. Bottoms up!
Looks like it did make a little difference! (or it might just be my mind playing tricks on me + wishful thinking)
We are assuming this is manufacturing process related ("some Ones are affected" camp). This would imply it is a QC issue, which it is not, according to OnePlus.
Samsung?
It has been noted that some Samsungs may suffer from unevenly cured LOCA. I have yet to see this for myself, but that's not to say it doesn't exist.
By design, Samsung's Super AMOLED panels have no discrete backlight; each individual pixel emits its own light. That's why dark/black images save power, and bright/white images consume more. Due to the nature of OLEDs, blue subpixels age faster than red and green, so the PenTile subpixel configuration aims to compensate for this by having twice as many (but smaller) blue subpixels than the rest. PenTile displays may exhibit a slightlu cool/blue tint as a result. An aged AMOLED display may exhibit a yellowish tint, due to the deficiency of blue.
Every generation has introduced upgrades and improvements to continually improve AMOLED tech. The Galaxy S5 and Note 4's displays finally outshine LCDs of the same class in terms of color accuracy/gamut, contrast, power efficiency, and uniformity of luminance. Sharpness has become increasingly irrelevant, thanks to the 500+ ppi of the Note 4. Any claims that LCD is objectively superior to the current generation of Samsung AMOLEDs is purely subjective. The only advantage that LCD has is its increased durability and lower price. They are less likely to fracture/crack and render the whole display useless.
I will get a phone that does not have a laminated display, and intentionally leave part of the LOCA uncured/under-cured in an attempt to replicate the tint where the backlight LEDs are.
How would this happen at the factory? I'd like to think the curing process involves a conveyor belt pizza-oven like device that "bakes" the display under UV light, but who knows!
We could ask Apple, since their iPhone 4 suffered from a similar problem
Update!: I think I should wear sunglasses next time.
I "only" put it in the lamp for 2 minutes, because that's how long the built-in timer is, and apparently some 20W UV lamps can fully cure a particular LOCA in a mere 6 seconds. I didn't want to risk damage to the LCD, so you could say I "chickened out"...
You can come to your own conclusions about what this means
In all seriousness, my One's probably not the best "poster child" for this, because I've actually heated the screen enough to separate the factory bond with the chassis, and exposed it to sunlight uninterrupted. We'll probably get more visible results by doing the curing process from scratch.
Pictured below is the phone in question; an iPhone 5S knockoff. Most of the better Chinese no-brand/knockoff phones have an OGS display (One Glass Solution), which is already laminated. It is like the OnePlus One's ToL (Touch on Lens), but not. I've posted on XDA before about it!
LOCA time!
As it turns out, the LCD is stuck to the front glass with adhesive tape all around the border. I didn't remove all of it, which resulted in some of the air bubbles to have nowhere to go
Get the display all clean, and apply the glue in an elongated "X" fashion:
I didn't have one of these:
So I used the phone's chassis. Bad idea. The glue leaked all over the place. The whole idea of the alignment frame thing above is to allow air bubbles and excess glue to escape, while also maintaining a uniform thickness between the glass and the LCD.
Lookin' good! This was the best I could make it. An autoclave would've came in handy.
Into the manicure UV lamp for 2 minutes. That should be inadequate enough!
The glue had already solidified enough such that air bubbles could no longer move around freely. The bubble in the top right corner became bigger, but other than that, everything went better than expected!
...or so I thought. LOCA had leaked underneath the LCD and into the backlight, because I used the chassis as the alignment frame, but it did not allow glue to escape.
The glue did not become yellow. It wasn't yellow when it was in liquid form, and I don't have much idea how long you're supposed to cure it for. Maybe it yellows further down the road?
Well, at least the properly laminated areas look great, and glare has been reduced. In hindsight, I should have used a display that could be replaced if I messed up this process.
¯\_(ツ)_/¯
This process is not going well with the Galaxy S3 display
If only I had gotten that $600 machine that make this process a whole lot easier (the frame laminator bit), or the lot for $4,250...

Conclusion?
We cannot come to a definitive conclusion at this point. The backlight placement doesn't seem to result in the yellowing, and neither does under-cured LOCA, since it yellows in a different fashion. Something's probably up with the design of the display itself, and it might have something to do with the color shift you see when viewing it from a different angle.
Either that, or like the touchscreen issues, there might be multiple causes of the yellowing.

Omg man, you deserve the crown of the unofficial Oneplus hardware development.
I'm so lucky to not suffer this problem (but i'm going crazy by the unresponsiveness of my touchscreen).

/p/ says your problem is that your using cannon I' just teasing man, this is an awesome post and we appreciate your efforts.

The complete yellower screen thing is really a color profile(ak has the old one, see the difference)
The tint 92% in the UK

TigerDNA said:
/p/ says your problem is that your using cannon I' just teasing man, this is an awesome post and we appreciate your efforts.
Click to expand...
Click to collapse
Well, so is OnePlus
Aaahh said:
The complete yellower screen thing is really a color profile(ak has the old one, see the difference)
The tint 92% in the UK
Click to expand...
Click to collapse
So it's not a deliberately warmer JDI display thing?

vantt1 said:
Well, so is OnePlus
So it's not a deliberately warmer JDI display thing?
Click to expand...
Click to collapse
The display may have been deliberately designed that way, but changing the colors counteracts anything out of ordinary.
In fact, I like it better than the Samsung and HTC, there screens look colorless or flat. I like my screen, it has depth

Aaahh said:
Samsung and HTC, there screens look colorless or flat. I like my screen, it has depth
Click to expand...
Click to collapse
Are you kidding me? Samsung screens are extremely saturated? That's pretty much their thing, over saturating their screens.

TigerDNA said:
Are you kidding me? Samsung screens are extremely saturated? That's pretty much their thing, over saturating their screens.
Click to expand...
Click to collapse
The samsung is flat... My friend had the s4 active and I thought it looked depth less.
The HTC is dark

TigerDNA said:
Are you kidding me? Samsung screens are extremely saturated? That's pretty much their thing, over saturating their screens.
Click to expand...
Click to collapse
I have to agree here, the saturation on Samsung displays is ridiculous.
Transmitted via Bacon

Aaahh said:
The display may have been deliberately designed that way, but changing the colors counteracts anything out of ordinary.
In fact, I like it better than the Samsung and HTC, there screens look colorless or flat. I like my screen, it has depth
Click to expand...
Click to collapse
If we're talking color depth, Samsung definitely has the upper hand over the OPO and HTC.
Aaahh said:
The samsung is flat... My friend had the s4 active and I thought it looked depth less.
The HTC is dark
Click to expand...
Click to collapse
The S4 Active had a terrible display. It is not representative of Samsung's better displays.
I wouldn't say HTCs are dark. In fact, the HTC One M8 has a brighter than average display. Some OEM screen assemblies can be complete crap though.
timmaaa said:
I have to agree here, the saturation on Samsung displays is ridiculous.
Transmitted via Bacon
Click to expand...
Click to collapse
It's just more accurate/has a wider color gamut that what you're used to on other phones.
Take a look at some of DisplayMate's Samsung display shoot-outs. The Galaxy S5 and Note 4 have some of the most accurate mobile displays on the market (not directly comparable with LCD tech).

He has a fix for that
If you got your one wet, your toast.

Aaahh said:
He has a fix for that
If you got your one wet, your toast.
Click to expand...
Click to collapse
We're not here to argue which is the better phone with waterproofing solutions. We're talking about screen quality.

nicholaschum said:
We're not here to argue which is the better phone with waterproofing solutions. We're talking about screen quality.
Click to expand...
Click to collapse
That is the reason it's doing what it does
The connection becomes grounded.
Try putting foil around your phone

vantt is here...

Aaahh said:
That is the reason it's doing what it does
The connection becomes grounded.
Try putting foil around your phone
Click to expand...
Click to collapse
Yes, but regardless, we're not here to talk about waterproofing your phone.

nicholaschum said:
Yes, but regardless, we're not here to talk about waterproofing your phone.
Click to expand...
Click to collapse
I'm done fighting.

[FIX]Screen calibration for yellowish screens!

Hi everyone! In this thread i'll explain you how to correctly cakibrate your Lg G3 if it has yellowish white colours.
I have a G3 which,if co pared to an O eplus One or huawei ascend P7,seems much worse in white colours,is much more yellowish while the others have a perfect white colour.
So what i did is playing with the screen RGB parameters using Trickster MOD app.
WHAT DO YOU NEED?
-trickster MOD app,free one works well but with the donate you'll be able to save custom profiles
-a rooted phone
-any kernel,every kernel on G3 has support to RGB calibration
-Busybox installed:if you have a stock modded ROM,like cloudy,it's probably preinstalled;if you have a full stock bumped rom(so only rooted)then download the app "busybox" from playstore and from the app,install busybox.
LET'S APPLY THE CORRECT VALUES!
Open trickster MOD,go to the last screen on the right,and set these values.
PERFECT WHITE
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
WHITE A BIT MORE YELLOWISH(use this if your phone feels bluish)
WHITE A BIT LESS RED(use this if your screen feels a bit reddish)
Finally tap on "settings" button and check,under "apply on boot" text, the "kernel settings" button.
DONE! Now your screen is correctly calibrated [emoji4]
Tap on thanks[emoji106] button if i helped! It's a little reward for me

QUESTIONS&ANSWERS
Q:why your blue is set to 256? I can't get more than 255!
A:because i used "color control" app before,and woth that i could set it to 256. Of course it's not noticeable the change between 255 and 256.
Q:will these settings improve my brightness?
A:absolutely not. It will only set your white to a "whiter" value
Q:will this affect my battery life?
A:it won't get worse. Theorically a bit better,but there's no noticeable improvement.
Q:will this worsen/increase my performance?
A:NO.
SETTINGS FROM THE OTHER USERS!
biskazz said:
Really useful tutorial. I'm using R:240 G:240 B:256 on lge panel. Looks 10x better.
The built in kernel auditor on Blisspop 3.3 has saturation and contrast adjustments too. 40 on saturation and 130 contrast. I really like ultra vivid colours, more vivid than amoleds even. Thank you!
Click to expand...
Click to collapse
Tomogitarist said:
My settings for perfect white is:
RED: 250
GREEN: 250
BLUE: 255
This should work for screens with yellowish white since I always had feeling that my screen was a bit yellowish
Click to expand...
Click to collapse

Previously I was using these settings;
231
234
243
Your settings are way better and whitish then mine
Thanks :good:

DarkShadow69 said:
Previously I was using these settings;
231
234
243
Your settings are way better and whitish then mine
Thanks :good:
Click to expand...
Click to collapse
And thank you for the feedback! [emoji106]

Really useful tutorial. I'm using R:240 G:240 B:256 on lge panel. Looks 10x better.
The built in kernel auditor on Blisspop 3.3 has saturation and contrast adjustments too. 40 on saturation and 130 contrast. I really like ultra vivid colours, more vivid than amoleds even. Thank you!

biskazz said:
Really useful tutorial. I'm using R:240 G:240 B:256 on lge panel. Looks 10x better.
The built in kernel auditor on Blisspop 3.3 has saturation and contrast adjustments too. 40 on saturation and 130 contrast. I really like ultra vivid colours, more vivid than amoleds even. Thank you!
Click to expand...
Click to collapse
Press thanks if you liked [emoji4] and thanks for the feedback!

Many thanks for this great tutorial! The third option was best for my screen.
Cheers

_jonte said:
Many thanks for this great tutorial! The third option was best for my screen.
Cheers
Click to expand...
Click to collapse
Happy that i helped! [emoji4]

i open the trickster to change the colors and settings for colors desappiared..!! before one month settings for colors its ok and i have change it.. now dont have the settings for color... anybody knows why dont have it!

y0000 said:
i open the trickster to change the colors and settings for colors desappiared..!! before one month settings for colors its ok and i have change it.. now dont have the settings for color... anybody knows why dont have it!
Click to expand...
Click to collapse
Try to reinstall trickster

My settings for perfect white is:
RED: 250
GREEN: 250
BLUE: 255
This should work for screens with yellowish white since I always had feeling that my screen was a bit yellowish

Tomogitarist said:
My settings for perfect white is:
RED: 250
GREEN: 250
BLUE: 255
This should work for screens with yellowish white since I always had feeling that my screen was a bit yellowish
Click to expand...
Click to collapse
Thanks,tried it now and these values are a bit more yellowish than mine. Probably our screens are a bit different!
I'll update 2nd post with your advice [emoji6]

motoralbi said:
Try to reinstall trickster
Click to expand...
Click to collapse
yes i reinstall it but same like before. i dont have color panel pff i dont know why. anyway thnx for screen calibrations always is useless.

y0000 said:
yes i reinstall it but same like before. i dont have color panel pff i dont know why. anyway thnx for screen calibrations always is useless.
Click to expand...
Click to collapse
Try to use the app "color control",you can find it on google

I dont think a lot of you realise what true white actually looks like. The settings you are suggesting are very very blue and nowhere near true white.
Real 6400k true white is actually a little creamy looking to most people, the sort of 'white' people are used to, the titanium dioxide white of toothpaste, or white plastic goods, is blue.

ChrisM75 said:
I dont think a lot of you realise what true white actually looks like. The settings you are suggesting are very very blue and nowhere near true white.
Real 6400k true white is actually a little creamy looking to most people, the sort of 'white' people are used to, the titanium dioxide white of toothpaste, or white plastic goods, is blue.
Click to expand...
Click to collapse
I also find OP's settings too blue. Most people prefer blueish tone because Samsung always had blueish tone AMOLED screens and people got used to it. Maybe you should try out my settings in which difference between red/green and blue is minimal (only 5). I find that perfect for my phone. Color is as white as white paper.

What i did is essentially testing the screen calibration while i was in a dark room.
When there isn't much brightness in the room,i felt the screen much yellowish,so i set the settings in OP.
SO actually you were using the stock values before,and then you changed them with mine. So your eyes were adapted to the yellowish white,and now switching to the new values,you see them bluish.
Actually if you reset the values to stock you'll feel the screen much yellowish,and if 5 seconds later you set my values,you'll feel the screen blueish. So what i think is that eyes get adapted to the white "colour".
I used to use stock values for a long time,and when i went in a dark room,i fekt the screen very yellowish. With my new values it feels white.
The best thing would be to try an electronic display tester[emoji6]
Also it coukd be that we have different screens,with different white colours. Your screens could be "perfect" woth stock values while mine is yellowish.

motoralbi said:
What i did is essentially testing the screen calibration while i was in a dark room.
When there isn't much brightness in the room,i felt the screen much yellowish,so i set the settings in OP.
SO actually you were using the stock values before,and then you changed them with mine. So your eyes were adapted to the yellowish white,and now switching to the new values,you see them bluish.
Actually if you reset the values to stock you'll feel the screen much yellowish,and if 5 seconds later you set my values,you'll feel the screen blueish. So what i think is that eyes get adapted to the white "colour".
I used to use stock values for a long time,and when i went in a dark room,i fekt the screen very yellowish. With my new values it feels white.
The best thing would be to try an electronic display tester[emoji6]
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I do have a colourimeter even the stock values are too blue, very few devices are too yellow unless there is a fault, almost all are blue. White paper is not true white. True white really does look quite yellow, almost nothing you ever see is true white, all white goods, paper, paint and 90% of screens are blue.
If I can later I will show you a picture of my stock G3 against my ISF calibrated Plasma TV which is almost perfectly true white, the difference is staggering. the camera wont give you a true colour image but you will be able to see the difference between them.

ChrisM75 said:
I do have a colourimeter even the stock values are too blue, very few devices are too yellow unless there is a fault, almost all are blue. White paper is not true white. True white really does look quite yellow, almost nothing you ever see is true white, all white goods, paper, paint and 90% of screens are blue.
If I can later I will show you a picture of my stock G3 against my ISF calibrated Plasma TV which is almost perfectly true white, the difference is staggering. the camera wont give you a true colour image but you will be able to see the difference between them.
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Thanks!! That's really good [emoji4]
So,i'll correct my words.
Values given by me are values for our eyes,with them the screen seems white[emoji6]

I agree its personal taste, i dont even use my TV on the calibrated setting all the time, some things look better with a cooler tint.