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Post here is your iPad's display has an uneven tint.

J

Justin Luck

macrumors regular
Original poster
Mar 3, 2011
164
0
I have posted in the yellow tint thread, but I am curious how many of you are experiencing this uneven tinting issue.

The top 3/4s of my iPad's display has a warm, uniform tone. It doesn't look yellow to my eyes -- just warm. I am fine with this. There is a yellowish/pink haze, however, that is predominantly on the lower left corner of the screen. While the tint is faint, it is still noticeable on any light colored background and I see it when I read text on the bottom half of the screen. This is such a beautiful display, it is a shame to be tarnished by this yellow/pink haze. I wonder what causes it.
 
I was on the phone with apple about this issue, they said it was a known issue with the new iPad and it was glue drying.

Many tear down websites dispute this claim.

I have exposed led's that cause a red splotch the size of a playing card at the top of my screen. Maybe people reporting red or pink tint need to check for exposed led lighting.
 
Mine is cooler blue on the bottom 2/3 of the screen and yellow on the top 1/3. This is way worse than having the whole screen yellow because you can't get used to it. I'm going to return mine, hopefully I'll get a cooler blue one but I'll be ok with a little warmer yellow tint too as long as its consistent across the whole screen.

I had yellow blotches on my iPhone 4 that went way but this seems more like the 27 inch iMac yellow screens that don't get better. The new iPad screen isn't glued the same way as the iPhone.
 
I have the same - different area of the screen - I think though that it's improving slowly. Was the full top half of the screen out of the box but the affected area seems to be getting smaller and settling down.

So I'll give it a few weeks and if it's not improved go and see a Genius. I want an iPad and it has a years warranty so I'm not bothered.
 
I thought mine was perfect until I started typing in the split keyboard. I noticed one side was cool and the other side was warm. Gonna have to swap it now.
 
My theory is that as most of us seem to have the pick/yellow tinge where it's patchy towards the top of the screen (OP aside), this is due to the fact that the heat from the processor is in the bottom half of the device hence the bottom of the screen glue is drying more quickly with use. The pink at the top of my screen seems to be fading a little now and it's had less than 48 hours use.

Might be completely wrong but it's a theory!
 
I noticed a tiny slight bit of color shift across my screen but it is so subtle I don't wonder if it's not just me being crazy.

I'm going to wait a week or two and see if it doesn't go away or maybe I just get used to it or maybe I just stop noticing something that isn't there.

That being said I did have issues with my iPad 2 screen and had to swap it out at an Apple Store so I can relate and sympathize with people that are having issues.

Below is a link to a series of images along with instructions on finding dead pixels. While uneven screen color is obviously different than dead pixels, I suspect these images and included instructions may prove helpful for people trying to identify issues with their screen.

http://www.theipadguide.com/content/ipad-dead-pixel-test-how/7171269
 
I have the same issue many are describing... where the top 1/3 of the screen is warmers (yellow/pink hue) and the bottom half is cool. Can anyone give us a little more insight on this? Does Apple say that this is merely the glue drying off? My iPad is perfect otherwise but it really bothers me that it has two different color consistencies.... at least if it was constant I could live with it but since one half is yellow/pink and the other side is cool it's hard to ignore! As other have stated... it is more noticeable when using the keyboard in landscape mode. Half the keys are cool and half are warm.
 
The sales rep I talked to said the yellow was glue, although many tear down websites are reporting it cannot be glue.

Bottom line is you have 15 days if you did not buy apple care to return your iPad.

After that you are at the mercy of an apple employee to judge if your iPad is in spec or not, and people are reporting that they are saying severely yellowed screens are in spec.
 
I really do like my iPad... It doesn't have any bleeds or uneven lighting onto the screen, nor does it have exposed LEDs like some people are reporting. I understand then saying that an overall yellow tint is within specs, but half and half cannot possibly be judged "between specs." Perhaps as the week warms up I will start seeing some movement in the glue drying process.

The person you spoke to, was that an apple rep on the phone? I know some sites are debating the yellow hue being glue, but that is probably for the overall screen. I have noticed that the area that gets warmer (CPU heat) is cooler overall than the rest of the display so perhaps there is some truth to this.
 
crammedberry said:
I have the same issue many are describing... where the top 1/3 of the screen is warmers (yellow/pink hue) and the bottom half is cool. Can anyone give us a little more insight on this? Does Apple say that this is merely the glue drying off? My iPad is perfect otherwise but it really bothers me that it has two different color consistencies.... at least if it was constant I could live with it but since one half is yellow/pink and the other side is cool it's hard to ignore! As other have stated... it is more noticeable when using the keyboard in landscape mode. Half the keys are cool and half are warm.
Click to expand...


Holding the iPad in portrait or landscape mode ?

I have the same issue where the right side is a bit yellowish, holding in landscape mode !!
 
crammedberry said:
I really do like my iPad... It doesn't have any bleeds or uneven lighting onto the screen, nor does it have exposed LEDs like some people are reporting. I understand then saying that an overall yellow tint is within specs, but half and half cannot possibly be judged "between specs." Perhaps as the week warms up I will start seeing some movement in the glue drying process.

The person you spoke to, was that an apple rep on the phone? I know some sites are debating the yellow hue being glue, but that is probably for the overall screen. I have noticed that the area that gets warmer (CPU heat) is cooler overall than the rest of the display so perhaps there is some truth to this.
Click to expand...

Yea, I called apple customer support, who knows if he was right or not but he said it was glue.

Many teardown sites are reporting that it is not glue, who knows.

His advice was to wait a couple days to see if it dries or not, I think it is not glue because this first wave of iPads were made a long time ago, they are not hot off the presses so to speak.
 
calilove said:
Many teardown sites are reporting that it is not glue, who knows.
Click to expand...
Do you have any references for anyone making this conclusion?

I ask because people have said it here on the forum, but I've not seen a teardown make any such claim.

I think people are confused. The iFixit teardown shows that the display panel is not bonded to the glass and digitizer as a single unit like on the newer iPhones. However, the epoxy in question is what binds the digitizer to the glass, which is still a single unit. The fact that the LCD is not also bonded to this sandwich on the iPad does not mean there is no epoxy between the screen and your eyes.
 
I will hold on to it for this week... Mostly because I am pretty booked up and have little time to spare. I'll see if there is any noticeable improvements and decide whether to keep it or not. The possibility of it being glue though is welcome news. Perhaps the fact that they have not been powered in and generally stored in some cool warehouse meant that they didn't really cure. My iPad says it was manufactured in week 8, which is only a little over 2 weeks ago. I really love my iPad.... But I will return it for a refund if I cannot get a suitable replacement. Warm screen I could live with... Dual inconsistencies in color gamut I cannot.
 
I honestly thing its not glue and it will never go away in time, though anyone can feel free to disprove that. If the apple store near you offers good exchange policies then I recommend you get 1 exchange now and if its the same issue get another one later down the road (2-3 months after) or just get your money back and purchase later.
 
It appears to be viewing angle related rather than any other sort of defect, at least on my screen.

When viewed straight on, it's perfect. In portrait at an angle, the top ⅓ or so starts to shift towards being slightly greenish-yellow. Strangely, this seems to be directional, as it changes to the bottom ⅓ if I flip it over. (and largely disappears due to the angle I usually hold it)

I suspect that people complaining of it either being the left or right side, are using their iPad horizontally and/or are not holding it central in their vision, or are at an angle to it.

The LCD panel is not bonded to the glass, so I doubt it is adhesive. I believe the cause for this is a switch from IPS to Samsung's IPS-like Super PLS displays:
zUmvi.jpg



As you can see here, IPS displays tend to lose more brightness & contrast at an angle, and shift towards blue. As previous iPad displays were already somewhat blue, this was less noticeable than a white screen going somewhat greenish-yellow.

Here is my iPad 2 (left) compared with the new iPad to show that the old IPS panels were indeed somewhat blue:
SDMMP.jpg

Unfortunately, I couldn't get a good photo showing what the displays were like at an angle.
 
Mine is very uneven. Roughly 1/3rd.

Im away for a week without it - will be interesting to see if it has improved when i get back.
 
I agree with the directional thing too. I had noticed that which essentially means that all iPads will be like this. It just depends the angle your view it at. Odd though that Apple did not spot this in testing and try and mitigate it in some way.

----------
Dlanod said:
I agree with the directional thing too. I had noticed that which essentially means that all iPads will be like this. It just depends the angle your view it at. Odd though that Apple did not spot this in testing and try and mitigate it in some way.
Click to expand...

Although I have two iPad 3s at home and they are both different in terms of the colour of the screen and the uneven backlighting colouring.
 
Dlanod said:
I agree with the directional thing too. I had noticed that which essentially means that all iPads will be like this. It just depends the angle your view it at. Odd though that Apple did not spot this in testing and try and mitigate it in some way.
Click to expand...


i think they know but they figure that 90% of the populace won't so they put them out anyways,
 
andrewfee said:
It appears to be viewing angle related rather than any other sort of defect, at least on my screen.

When viewed straight on, it's perfect. In portrait at an angle, the top ⅓ or so starts to shift towards being slightly greenish-yellow. Strangely, this seems to be directional, as it changes to the bottom ⅓ if I flip it over. (and largely disappears due to the angle I usually hold it)

I suspect that people complaining of it either being the left or right side, are using their iPad horizontally and/or are not holding it central in their vision, or are at an angle to it.

The LCD panel is not bonded to the glass, so I doubt it is adhesive. I believe the cause for this is a switch from IPS to Samsung's IPS-like Super PLS displays:
Image


As you can see here, IPS displays tend to lose more brightness & contrast at an angle, and shift towards blue. As previous iPad displays were already somewhat blue, this was less noticeable than a white screen going somewhat greenish-yellow.

Here is my iPad 2 (left) compared with the new iPad to show that the old IPS panels were indeed somewhat blue:
Image
Unfortunately, I couldn't get a good photo showing what the displays were like at an angle.
Click to expand...

I think you are right. See my pole here. https://forums.macrumors.com/threads/1343992/
 
The tint on my screen isn't affected by viewing angles. I can view it straight on and it is still a pink/yellow haze.

I'm trying not to be bothered by it, but everytime I read, I see a warm, neutral background followed by a pink/yellow haze about three quarters down the page.

I would love to know the physics behind what is causing this phenomenon. You would think that all the pixels would have the same color properties.
 
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