[Q] Brightness uniformity of the screen - Acer Iconia A500

I can't be the only one who's noticed inconsistent brightness uniformity across the A500's screen.
While the Iconia's screen is beautiful all around (great viewing angles, colors, zero backlight bleed etc.) I think brightness uniformity could be better.
The problem becomes apparent mostly during web browsing, on pages that have a color filled background.
Some parts of the screen appear brighter, others darker.
On my A500, the left part of the screen is darker with a warmer color temperature, while the lower right part is brighter (holding it with the volume buttons up).
I've never come across a 100% uniform TFT screen and I've learned to accept this 'characteristic'. However I think the A500 could be much better in this regard.
The problem is easier to spot on grey backgrounds, like this one:
http://fiddle.jshell.net/qFxsC/1/show/
(this was made by a Galaxy S II user to make screen inconsistencies more apparent)
I checked a couple of demo units and they also exhibited backlight inconsistency..
How is your Iconia's screen?

Perfect
No light/dark spots on said linked image at all. I am running auto brightness in indoor lighting.

Are you talking about asus transformer? (Joke)
No problems here, no light bleed or others things
Sent from my A500 using XDA Premium App

I'm not noticing the issue on my A500. Maybe OP should return his tab or have warranty replace it?

Would recommended it -
Op should return or RMA his device - if my screen was not perfect I would have returned it as soon as possible. The image file OP links to looks perfect on my a500 - but "perfect" can be a bit subjective from time to time

Thanks for the swift replies people.
Can someone post a clear photo of their screen displaying the image linked above? (full brightness, no other light source etc.)
Perhaps mine was from a bad batch (it was one of the first ones, made in April, same as the demo units I checked in a couple of stores)
Unfortunately, one can't RMA for this since 2 out of 3 people can't even spot it and 3 out of 3 techs cant
P.S. Note I'm not refering to backlight bleed or 'dark spots'. I'm talking about backlight uniformity.

Can do
Will snag a picture of my Iconia displaying said image tonight when I get home (10:30pm CST) and post it here.

Thank you!

perfect gray scale on this one

No problem
No problem, perfect gray scale

Gray scale? Its a gray background, not a gray scale, same color everywhere.

If you set the brightness to 100% every screen will get some light bleeding. My ipad 2 has light bleed as well when brightness is set to 100%.

Once more I'll point out that I am not talking about light bleeding, there is zero backlight bleeding on the Iconia even at max brightness, which is impressive.
What I'm talking about is that not every part of the screen is at the same brightness - no TFT screen is perfect in this regard, I'm just saying that the Iconia could be better.
Perhaps this part of a monitor review could clear up what I'm talking about:
http://www.xbitlabs.com/articles/monitors/display/lcd-testmethods_4.html
I'm still waiting for a photo of an Iconia displaying the fullscreen image I posted in the original post. I need to decide if I'm gonna attempt an RMA or not.

Related

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.

Display problem/yellowish left side

Just got my new SGS2 3 days ago, really liking it but stumbled into a screen problem and would like to know if it's just me/it's normal/I need to change a setting to fix the problem.
Just like the title says, the left side (about 1/3) of my screen changes the colour of the image to a more yellowish tint. This seems to happen just when the brightness is quite low, and tends to disappear when close to 100%.
It is rather subtle, but can be seen where there's white text on a darker background (white characters become darker the closer they are to the left border), or when looking at an uniform colour.
I created this test page to make the problem more apparent: http://fiddle.jshell.net/qFxsC/1/show/
When visiting it on the S2 browser and setting browser brightness to around 20%, it becomes quite visible.
Anybody else with the same problem?
EDIT:
We still DO NOT have pictures of a phone WITHOUT the problem described above!
If you believe your SGS2 has a perfect screen, please post pics of the notification area taken in the dark at both 0-20% brightness and 100% brightness!
UPDATE
Various websites have started to talk about this problem, linking to this thread:
- http://mobile.engadget.com/2011/05/30/is-your-galaxy-s-iis-display-yellow-on-the-left/
- http://pocketnow.com/android/samsung-galaxy-s-ii-screen-problems-trouble-in-paradise
- http://www.onlinesocialmedia.net/20...2-s-ii-screen-problems-users-en-masse-report/
- http://gsmarena.com/samsung_galaxy_...y_uneven_brightness_yellow_tint-news-2719.php
I have just sent an email to GSMarena asking if they could check the unit they reviewed to see if it has the same problem. Of all the phone reviews I have seen, theirs seems to be the most focused on image quality, I'm sure that if their unit doesn't have this problem, they would be able to take clear shots of a flawless screen.
EDIT:
GSMarena took screens of their unit using the above test link, and while so far I believe theirs is the best looking display that we have seen so far, it *STILL* has the problem.
I am going to link this thread to samsung UK next, in the hopes they will give an official answer acknowledging the problem.
EDIT:
latest firmwares seem to fix this problem or at least make it much less noticeable.
Take it straight back and swap it. Seems to be a growing amount of people on here, including myself, with various dodgy screen issues.
B
The screen doesn't look perfect if you look at a uniform color on the whole screen + low brightness, but... well I don't tend to use it much for that. Could be a limitation in OLED production-technology getting all the pixels to have exactly the same brightness/color etc.
edit:
To answer directly to the question here, no I don't have a yellowish left side. It's just not completely uniform across the whole screen.
I've got this same thing. I first noticed it when using Estrongs file explorer. I always have my screen turned down to 0% to save battery, but didn't notice this anywhere else yet (at least I didn't think about it).
Your posted image does show it clear.
What to do? Could you others comment whether you've seen this? Go to the OP's posted link and set your brightness down to 0%.
Quist said:
I've got this same thing. I first noticed it when using Estrongs file explorer. I always have my screen turned down to 0% to save battery, but didn't notice this anywhere else yet (at least I didn't think about it).
Your posted image does show it clear.
What to do? Could you others comment whether you've seen this? Go to the OP's posted link and set your brightness down to 0%.
Click to expand...
Click to collapse
I tried to mess around with settings such as auto adjust screen power etc, but the only thing that seems to fix it is crank up the brightness.
We obviously can't keep it anywhere close to 100% tho, this phone sucks battery down quickly already at 0%!
Another thing you can do to check if you have this screen problem is call *#*#0*#*#*
This will make the phone go in the diagnostic program, and if you try the white diagnostic, you can somewhat see the problem, although not quite as clearly as in the test web page I posted above.
I'm considering to return the phone, as it doesn't seem to be getting better, despite having read that some screen problems might go away after a few days.
Mine is exactly the same. It's noticeable at the lowest brightness setting, however if I increase the brightness even slightly it pretty much disappears for general use. It's still there but not really enough to bother me.
On the OP's link I changed the brightness through several settings and at certain brightness levels the whole screen gets a yellow tint. Not necessarily related to the left side of the screen having a yellow tint, apart from I guess a lack of brightness of the blue subpixels relative to the red and green.
I'm not sure if I'm imagining it but I think it has improved slightly on mine over the past week. However if it gets any worse I think a warranty claim will be in order.
Hhrrmm, I'm in a catch-22 here. There's generally a grace period for any manufacturing errors like this where you can quickly get a replacement just by returning it to the vendor. Problem is, my vendor won't be getting any new units in for another two weeks.
Quist said:
I've got this same thing. I first noticed it when using Estrongs file explorer. I always have my screen turned down to 0% to save battery, but didn't notice this anywhere else yet (at least I didn't think about it).
Your posted image does show it clear.
What to do? Could you others comment whether you've seen this? Go to the OP's posted link and set your brightness down to 0%.
Click to expand...
Click to collapse
I don't see it clearly on the link he posted.
But i do see it in the notification screen. The grey area is slightly darker/yellow tint on the left site. Even when i put it on maximum brightness you could see it. Especially when you first concentrate your eyes on the right side for 5 seconds and than on the left side.
I do seem to notice it on the notification grey slider where your finger is on when you pull it down, on the left side the grey is a little bit "darker" than on the right side of mt finger.
I tend to think I can also see it on the keyboard, whereas the Q has different grey than P on the opposite of the screen...
Anybody could check this out on their phone??
Thanks in advance!
As time goes by, it feels like my problem is getting worse, although it may only be due to me being aware of it.
Also began noticing it in the pull-down message field. Now I see it against white backgrounds as well, almost like a faint green-grey shadow.
I've contacted my vendor and requested an RMA and replacement. They're sending me a shipping slip to send it to them "for control" then they'll contact me on my options from there. Can only hope they see it as clearly as I do and that they send me a new phone as a replacement rather than repair/refurb crap.
Think this is the last time I buy electronics online. I saved 20% off retail on this one, but having the option to do a walk-in replacement at a brick-n-mortar store would have been worth the higher price. <sigh>
I've got the same thing aswell, a slightly yellow/brown-tinted shade towards the left side of the display. Also visible for example in the market menues, the white areas seem to be very slightly darker towards the left side.
Not sure I am bothered about it enough to return it, doesn't bother me unless I specifically look for it. Also it really is very slight.
TechNoir said:
I've got the same thing aswell, a slightly yellow/brown-tinted shade towards the left side of the display. Also visible for example in the market menues, the white areas seem to be very slightly darker towards the left side.
Not sure I am bothered about it enough to return it, doesn't bother me unless I specifically look for it. Also it really is very slight.
Click to expand...
Click to collapse
If everybody has it, no problem for me.
But if the majority does not have it, I would like to have one without it. Do you think Samsung knows abouth it?
When you have a full grey pictuere or just the notification screen and you go into a perfect dark room. Can you also see, some white vertical en horizontal lines? Looks like hardware where the screen is build on?
Here is a photo I took of my screen with a grey background (see below - click on it to enlarge).
For me, its visibility seems to vary depending on the ambient light, but I'm definitely seeing more effects of it now.
Really hope I'm able to get a good replacement. Am reading quite a bit about this, banding, lines and dead/lit pixels.
so do you think it's a hardware issue, or maybe it will be gone??
r_a_c said:
If everybody has it, no problem for me.
But if the majority does not have it, I would like to have one without it. Do you think Samsung knows abouth it?
When you have a full grey pictuere or just the notification screen and you go into a perfect dark room. Can you also see, some white vertical en horizontal lines? Looks like hardware where the screen is build on?
Click to expand...
Click to collapse
The lines you mention are present both on my SGS and my SGS2. It seems to be patterns in the actual OLED pixels, and the patterns and lines are static even when you move pictures. Mostly visible on lower display brightness settings. I've gotten used to them and they don't bother me, and since I have the same thing on two SAMOLED-phones I'd chalk that one up to "just the way it is" aswell. Using anything over 50% brightness has them mostly fade into the display light so only really visible on the lowest brightness settings.
TechNoir said:
The lines you mention are present both on my SGS and my SGS2. It seems to be patterns in the actual OLED pixels, and the patterns and lines are static even when you move pictures. Mostly visible on lower display brightness settings. I've gotten used to them and they don't bother me, and since I have the same thing on two SAMOLED-phones I'd chalk that one up to "just the way it is" aswell. Using anything over 50% brightness has them mostly fade into the display light so only really visible on the lowest brightness settings.
Click to expand...
Click to collapse
This what you mean?
My Samsung focus and Cowon s9 (which I don't even think has a samsung oled screen) have that as well on the lowest brightness, I think its inherent to the tech.
TechNoir said:
The lines you mention are present both on my SGS and my SGS2. It seems to be patterns in the actual OLED pixels, and the patterns and lines are static even when you move pictures. Mostly visible on lower display brightness settings. I've gotten used to them and they don't bother me, and since I have the same thing on two SAMOLED-phones I'd chalk that one up to "just the way it is" aswell. Using anything over 50% brightness has them mostly fade into the display light so only really visible on the lowest brightness settings.
Click to expand...
Click to collapse
Ah ok thank you!
On a grey pick with full birghtness I can see them too.
On the post 2 post above yours(quist his post) you can see the lines, but now they are not white, but darker, can you confirm you see them and this is what you mean?
Do you also have the yellowish tint on the left side?
r_a_c said:
Ah ok thank you!
On a grey pick with full birghtness I can see them too.
On the post 2 post above yours(quist his post) you can see the lines, but now they are not white, but darker, can you confirm you see them and this is what you mean?
Do you also have the yellowish tint on the left side?
Click to expand...
Click to collapse
For both the SGS and SGS2, the dark lines are there for my devices aswell. They can seem a bit "grainy", and don't seem like perfectly defined lines, though they generally are always straight horizontal or vertical lines. I also have the Xperia Arc at hand, and if you look at a grey-ish image on either the SGS/SGS2, or the Xperia Arc (LCD), the Arc generally has a very smooth grey image, while the SGS/SGS2 has almost like a fine overlay of subtle lines or grids, generally darker in color than the image displayed, though not clearly defined and not completely symmetrical across the display.
Doesn't seem symmetrical enough to be a grid fo the digitizer layer or smtn like that, but definitely a pattern in the display itself. I still pick an AMOLED screen anytime of the day, the Arc display, while more uniform and "blemish"-free in this regard, still has that LCD backlight bleed-through which for me makes the display alot more tiring for the eyes.
Also my SGS2 has a very subtle tint towards yellow when viewing some of the grey test-images some people have posted. Never noticed it on my SGS1, so either I didn't look well enough, or it might be either hardware-related (something causing the pixels on the left side to perhaps not get the same amount of control voltage/whatever for the pixels, thus causing less blue/more yellowish color), or software. Either way, it is way too subtle for me to care at all, maybe this is even according to spec for the SAMOLED+ and some use will even the pixels out, not sure if anyone has some inside knowledge about the SAMOLED screens.
I am definitely seeing this problem getting worse, now it is getting rather obvious as long as phone is lit by artificial light or in the dark, while sunlight seems to make it really hard to spot, even if not direct.
I've been given advice from samsung call center to bring to phone to the closest assistance point, which I'm going to do tomorrow - hope to be able to report back that it is a known problem and they will change my unit.
I hate to make an iPhone reference here, since I'm *not* a fanboy, but Engadget reported when the IP4 was released that yellow spots and banding were due to glues that had not completely dissolved/disappeared and were part of the bonding process of the screen:
http://www.engadget.com/2010/06/24/iphone-4s-yellow-spot-issue-goes-away-with-a-bit-of-time/
Now - the picture above showing a completely yellow left-side display - that looks 100% abnormal and I'd RUN back to the store to swap it out. I don't think that's glue related.
Download an app from the Market called "Dead Pixel Test" and run it with the white setting to see what it looks like. Is it still yellow?
Have this same issue. Noticed it right away unfortunately. It will always bother me if I deal with it.
Sent from my GT-I9100 using XDA Premium App

Is my Screen defective Checklist

Yes I did just receive my Galaxy note.
Let's collect a step by step check list of all problems on defective screens.
I know that many of these artifacts are very subtle, and hard to detect unless you know what you are looking for, and is especially hard when you do not have something to compare to.
I hope you can prove a check list for all new users can check..
#1. Does the screen look good when you turn it on and look at it?
Yes: your screen is not defective.
No: your screen may be defective.
Really the only common "defects" that have been discussed here are a thread or two started by someone extra anal that happened to notice a common, but very slight artifact most likely related to the manufacturing process. When viewing a solid black background with brightness on high while in a pitch black room with your eyesight adjusted to the darkness, you can notice blotchy darker areas in the black. Every amoled I've had has had this "defect."
Some people also complain about the default color temperature and complain that it's more of a greenish tint. Every amoled phone I've had so far has had those same complainers, also.
If it looks good when you turn it on and use it, there's absolutely no reason to take a microscope to it looking high and low for defects. If you think yours is too greenish, return it and try another. Color temperatures and tints do differ from panel to panel. I had 3 nexus ones and each looked slightly different.
maxh said:
#1. Does the screen look good when you turn it on and look at it?
Yes: your screen is not defective.
No: your screen may be defective.
Click to expand...
Click to collapse
Best thing I've read today, A+++, would read again.
Cracking reply, the use of the words extra anal lol classic
Sent from my GT-N7000 using xda premium
I have 30 days to return the product, If I have paid 540 euro I will not accept to have an defective screen...
How do I detect dead pixels the most easy way ?
is it to have a red background ???
maxh said:
#1. Does the screen look good when you turn it on and look at it?
Yes: your screen is not defective.
No: your screen may be defective.
Really the only common "defects" that have been discussed here are a thread or two started by someone extra anal that happened to notice a common, but very slight artifact most likely related to the manufacturing process. When viewing a solid black background with brightness on high while in a pitch black room with your eyesight adjusted to the darkness, you can notice blotchy darker areas in the black. Every amoled I've had has had this "defect."
Some people also complain about the default color temperature and complain that it's more of a greenish tint. Every amoled phone I've had so far has had those same complainers, also.
If it looks good when you turn it on and use it, there's absolutely no reason to take a microscope to it looking high and low for defects. If you think yours is too greenish, return it and try another. Color temperatures and tints do differ from panel to panel. I had 3 nexus ones and each looked slightly different.
Click to expand...
Click to collapse
I doubt very much if you have seen the individuals screen so what you say is based on guesswork. I have been using amoled screens for nearly 2 years and have never seen anything like this. A movie hired from the market was actually unwatchable on my note. I could not even make out what was on the screen at times. Even video and pictures taken by the onboard camera are very poor quality when viewed on the note. There is also an issue with banding and auto brightness changing randomly. Yours may be fine, mine was not.
maxh said:
#Really the only common "defects" that have been discussed here are a thread or two started by someone extra anal that happened to notice a common, but very slight artifact most likely related to the manufacturing process. When viewing a solid black background with brightness on high while in a pitch black room with your eyesight adjusted to the darkness, you can notice blotchy darker areas in the black. Every amoled I've had has had this "defect."
Click to expand...
Click to collapse
I actually noticed these black blotches in a completely black room with a pure black screen YEARS ago on my Zune HD. I was freaked out then as I thought I had a bum one. After awhile I found every one had this issue. Since I don't stare at screens with nothing on them in the dark I didn't worry.
I wouldn't get too freaked out by the black splotches as long as it is decent and you don't have any bad pixels (bad pixels are a dealbreaker to me).

Screen tint and viewing angles questions and opinions please

Ok well I would like to get peoples feedback and opinions on their screens.
My story. Broke my GNote II instead of paying to replace LCD decided to upgrade with my carrier.
First Note 3 I bought was bright with nice whites and great viewing angles. But it has the dreaded pinkinsh purple screen tint issue in the lower 3rd of the screen more so on the right side. This is subtle and is less evident in brighter conditions or higher screen brightness. At low brightness and in dark environments it is particularly visible on white and grey backgrounds. Went to store to exchange and they refused given they could not see the defect. I came online here searched around and it seems this has been an issue on the GS4 and people have mentioned it on the new Note 3.
Convinced my carrier to send me a replacement and I will return the original to them. Well got the replacement 3-4 days ago. The unit seems quite different. First off the screen is overall a bit more yellow at face on viewing angles and perhaps a hair less bright at similar settings though hard to tell. The bottom is not color shifted puple. The screen color is more homogenous. However the viewing angles are completely different. Here while the brightness stays goo dlike the first when angling the screen, the colors shift to a more aqua color with minor angle variation. (guessing 20-30*) whereas the original unit has virtually no color shift at almost 90*.
I probably have to send back a unit in the coming day or 2 and make a final decision. In theory I could try to ask for a third model, however it was with a lot of difficulty and threats to leave my carrier that they relented in the first replacement. SO I likely will have to stick with one of these or return both and use my somewhat broken note 2 and wait for something else.
I am wondering if any of you out here have similar pink/purple tint issues at one end of your screen. Or if you have issues with significant white color shift when angling your screen more than 30* in either portrait or landscape. Also if good or bad can you check build date on your phone (should be under battery). FInally did you or will you replace it? Was replacement better or worse?
Also if in my shoes would you go for the better looking screen with the pink issue or the more consistent looking screen that is a bit more blue yellow.
Thanks!
lots of postings about this, i even made a thread regarding this:
http://forum.xda-developers.com/showthread.php?t=2463786
some people call it nitpicking, but as you can see i'm feeling with you...
TML1504 said:
lots of postings about this, i even made a thread regarding this:
http://forum.xda-developers.com/showthread.php?t=2463786
some people call it nitpicking, but as you can see i'm feeling with you...
Click to expand...
Click to collapse
I know you did and I posted some long posts there and the thread kind of died.
I have some specific questions here as well as asking what I should do in my case.
I had a note 2 and remember there being perseus kernel and with STweaks one could shift color etc and make it how you like. I am thinking going with the more uniform color model as I am sure the slight yellow tint can be corrected and the blue tint on viewing angles is no worse than my note 2 looking back so I will get used to it I imagine. That said the first screen really has great screen but the purplish pink right bottom corner bugs me on white and grey screens ( not noticeable on high brightness though) and often reading on websites etc indoors I notice it enough that it bugs me.....
So for anyone who cares here is an update on my plan. The more uniform note 3 is more yellow/green tinted whites compared to the other one that is whiter/redder. That said if I use one of these screen filter style apps that exist in the play store, I can modify the overall screen into however I like.
Downside is that it means a persistently running app to do it with whatever effect on screen longevity and battery.
Now on my Note 2 which is also yellower, I was running perseus kernel and the s tweaks app and was able at the kernel level to modify the color to get better whites. I imagine it is only a matter of time before someone can do that for our note 3. I can handle the viewing angle color shift as the device is in my hand and not on a table when i use it where it might be off angle viewing by a large amount. And even then, the tinting of white has a bluish shift and now worse than a yellowing shift my wifes iphone has off angle or my note 2 did.
Would love tohear from others and what their screens are like and or developers who might have the means of modifying color at kernel level the way Andreilux did on the note 2
I checked almost 10 note 3s bkack n white as well..and found only 1 set.it has no yellow tint and no gray lining.
nabilsweet007 said:
I checked almost 10 note 3s bkack n white as well..and found only 1 set.it has no yellow tint and no gray lining.
Click to expand...
Click to collapse
You checked 13 notes and 12 of them were either yellow tint or what gray lining issue?
How did you manage to check so many.
Can you check the following. Look at the phone screen face on the tilt either up down or side to side about 30 degrees and tell me if the white on the screen turns bluish.
One of my phones does this and has the yellower whites. The other does not and has better whites but has some purplish discoloration in the lower right part of the phone.
Any one here try a new kernel from the android development sections?
Some of them talk about being able to modify screen color. Am wondering if this can be a fix for my issues.

On my 4th Nexus 7 and backlight bleed....

So I exchanged my first Nexus 7 because 1 dead pixel (build date 2013.10), got my second one with horrible multitouch problems and several dead pixels (build date 2013.08), my third one with multitouch problems and 8 dead pixels! and dust under the screen (build date 2013.09) and now on my 4th one (build date 2013.10).
- no multitouch problems;
- hardware is perfect, no dust under screen, no scratches, nothing (the first nexus also had some dust under the front facing camera);
- no dead pixels;
- but...it has in my opinion al lot of screen bleeding
Now, the question is, should I return this unit, I have made some pics in the dark with 100% brightness, what do you guys think of it?
edit: the bleeding is always seen on a black background during the evening (when its dark with normal house lights on), not so much in daylight. However the bleeding is seen even on 20% or 30% brightness, only if I turn on the automatic brightness things get a little better and the bleeding is minimised to the point that I am less bothered by it. Ooh and when I look at it from a different (a rather extreme) angle it also changes, so I guess it is some sort of glow
Manco123 said:
So I exchanged my first Nexus 7 because 1 dead pixel (build date 2013.10), got my second one with horrible multitouch problems and several dead pixels (build date 2013.08), my third one with multitouch problems and 8 dead pixels! and dust under the screen (build date 2013.09) and now on my 4th one (build date 2013.10).
- no multitouch problems;
- hardware is perfect, no dust under screen, no scratches, nothing (the first nexus also had some dust under the front facing camera);
- no dead pixels;
- but...it has in my opinion al lot of screen bleeding
Now, the question is, should I return this unit, I have made some pics in the dark with 100% brightness, what do you guys think of it?
edit: the bleeding is always seen on a black background during the evening (when its dark with normal house lights on), not so much in daylight. However the bleeding is seen even on 20% or 30% brightness, only if I turn on the automatic brightness things get a little better and the bleeding is minimised to the point that I am less bothered by it. Ooh and when I look at it from a different (a rather extreme) angle it also changes, so I guess it is some sort of glow
Click to expand...
Click to collapse
Oh....c`mon dude...if you want perfect blacks buy something with AMOLED display.I had that backlight bleeding on my Nexus 4,LG G2,Acer CloudMobile and even on Nexus 7(2013).I think this is normal for IPS displays.It`s just my opinion.But i`ve never seen a IPS screen wich renders perfect blacks like AMOLED.On my Nexus 7(2013) the white spot on the black is not that evident.I will make some pictures when I get home and post them here just for comparison with your pictures.
Manco123 said:
So I exchanged my first Nexus 7 because 1 dead pixel (build date 2013.10), got my second one with horrible multitouch problems and several dead pixels (build date 2013.08), my third one with multitouch problems and 8 dead pixels! and dust under the screen (build date 2013.09) and now on my 4th one (build date 2013.10).
- no multitouch problems;
- hardware is perfect, no dust under screen, no scratches, nothing (the first nexus also had some dust under the front facing camera);
- no dead pixels;
- but...it has in my opinion al lot of screen bleeding
Now, the question is, should I return this unit, I have made some pics in the dark with 100% brightness, what do you guys think of it?
edit: the bleeding is always seen on a black background during the evening (when its dark with normal house lights on), not so much in daylight. However the bleeding is seen even on 20% or 30% brightness, only if I turn on the automatic brightness things get a little better and the bleeding is minimised to the point that I am less bothered by it. Ooh and when I look at it from a different (a rather extreme) angle it also changes, so I guess it is some sort of glow
Click to expand...
Click to collapse
I have blb in the exact same spots as you, but its less bright and i can not even see it when in a dark room.
Sent from my Nexus 7 using xda app-developers app
Somehow I don't believe what you're saying.
That much light bleed on 30% brightness? I call bull**** sorry to say.
It's on 100% brightness and it's on a black screen, what the hell did you expected? It's native to IPS screens so either live with it or guy buy a Samsung Tab 7.3 for 250€ with it's amazing hardware and screen. NOT.
username4this said:
Somehow I don't believe what you're saying.
That much light bleed on 30% brightness? I call bull**** sorry to say.
It's on 100% brightness and it's on a black screen, what the hell did you expected? It's native to IPS screens so either live with it or guy buy a Samsung Tab 7.3 for 250€ with it's amazing hardware and screen. NOT.
Click to expand...
Click to collapse
Like I said in the first post "I have made some pics in the dark with 100% brightness, what do you guys think of it?"
The light bleed is indeed visible on 20% or 30% brightness, but of course less than with a 100% brightness. The problem is, everything besides auto-brightness makes it visible. Normally on my other android devices, I turn off auto brightness and leave the brightness on about 25% with the standard widget (with the half moon sign). But on my nexus, I can't do that. The statusbar is always washed out.
The first 3 units didn't have this much bleed, they had very little, not worth mentioning. Also, I am very aware of the fact what I can expect with IPS displays, AMOLED displays (like my galaxy nexus), TN displays (like in my Macbook) and PVA displays (like on my dell 2408fwp). The thing is, this light bleed on my nexus is very obvious and beyond normal. If the light bleed was not so visible under say 60%, I wouldn't care one bit.
The thing is I am very disappointed with the quality of the hardware. I have never in my life returned a gadget more than twice. Normally, if the first one wasn't good, the second one is almost certain perfect. Don't get me wrong, the nexus 7 is a awesome device! But these faulty units ruin it for me.
Maybe bad batch? Mine made in August 2013, nothing wrong
Nam Huy Linux Blog namhuy.net
Manco123 said:
Like I said in the first post "I have made some pics in the dark with 100% brightness, what do you guys think of it?"
The light bleed is indeed visible on 20% or 30% brightness, but of course less than with a 100% brightness. The problem is, everything besides auto-brightness makes it visible. Normally on my other android devices, I turn off auto brightness and leave the brightness on about 25% with the standard widget (with the half moon sign). But on my nexus, I can't do that. The statusbar is always washed out.
The first 3 units didn't have this much bleed, they had very little, not worth mentioning. Also, I am very aware of the fact what I can expect with IPS displays, AMOLED displays (like my galaxy nexus), TN displays (like in my Macbook) and PVA displays (like on my dell 2408fwp). The thing is, this light bleed on my nexus is very obvious and beyond normal. If the light bleed was not so visible under say 60%, I wouldn't care one bit.
The thing is I am very disappointed with the quality of the hardware. I have never in my life returned a gadget more than twice. Normally, if the first one wasn't good, the second one is almost certain perfect. Don't get me wrong, the nexus 7 is a awesome device! But these faulty units ruin it for me.
Click to expand...
Click to collapse
I don't want to sound arrogant or an ass, but I'll tell you what the problem with these threads is(which are alot believe me), light bleed annoyance/any of the other known issues is a personal thing.
And, coming here asking for advice is worthless because it's subjective and won't resolve anything. Everything about your device is up to you or whoever else opens a thread. If you find it bothering, go trade it until you get a unit working fine. Afterall, you payed and you have the right to have a fully working device. If it doesn't bother you that much, don't trade but and don't open a thread about it.
It won't change a thing, whatever people tell you it won't mater.
Good luck.
Hey, I had had 3 Nexus 7 2013s and all of them had light bleed. Even my iPhone 5 (bring on the hate bc i honestly hate my iPhone) has mild light bleed at 100% brightness on boot animation. My father had a Galaxy Note and he was used to flawless blacks and when he got an Xperia SP, he watches badminton matches at night and on loading screens, light leaked out from the sides. He went to Sony but they dismissed the problem
You have to decide how much it bothers you. It's much more than mine (100% bright), but my touch screen isn't what I'd like (like my N5 or even my old Toshiba Thrive).
EDIT: This pic taken of the N7 with my N5 should show better. It is a black background with 100% brightness. Only slight bit of bleed across the top.
ritchea said:
You have to decide how much it bothers you. It's much more than mine (100% bright), but my touch screen isn't what I'd like (like my N5 or even my old Toshiba Thrive).
Click to expand...
Click to collapse
You aren't supposed to take a screenshot. You're supposed to put your phone in a dark room and display a fully black pic at 100% brightness
Sent from my Nexus 7 using XDA Premium 4 mobile app
That was a screenshot of Backlight Bleed test at 100% brightness in a darkroom. I understand that maybe the "screenshot" concept prevented light bleed from showing although both look the same. I'll fix it and re-up or remove it.

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