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Backlight bleeding

this is funah said:
a self-selected sample is not at all accurate of the actual ratio produced.
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plus the fact that people whose iPad screens don't have this issue are probably not even reading this thread... :D (or they have the problem, but they don't notice it... or care about it.... :) )

Most people, myself included, don't start searching internet forums until a problem develops with the electronic gadgets. :)

I wonder if Mr. Steve Jobs has a "perfect" iPad 2 without any backlight bleeding? I read in the official Apple forum that someone went to his local Apple store and all iPads on display had backlight bleeding issues, from very minor to severe.... oh well... :mad:
 
Lets say if you keep getting backlight bleeding and returning it. Is there a limit as to how many times it will be replaced? Is there a point where they have to give a refund? I mean it is a fault.
 
After an earlier post in this thread....I think it's an assembly/design issue and not the panels.

Try applying some torque to your iPad....the bleed fades. I think the LCD is in fact screwed down too tight.
 
Just requested to send my 3rd one back (Black 64gb Wi-fi/3G) it was a DLX and was a P so week 20.

It had bad light bleeding down one side and 2 dead pixels (couldn't get rid of them and yes i tried all those videos and a bit of pressure on the screen) would of kept it though if it didn't have the latter.

The first 2 iPad2's had awful bleeding and dead pixels. But that's 3 with dead pixels now i have had is it common too ?


They have given me £80 back so far for all the messing though.
 
viewliners said:
plus the fact that people whose iPad screens don't have this issue are probably not even reading this thread... :D (or they have the problem, but they don't notice it... or care about it.... :) )

Most people, myself included, don't start searching internet forums until a problem develops with the electronic gadgets. :)
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The point you appear to be missing is that even if the initial sampling is heavily skewed by those who experience the problem, the fact that many of these people have had numerous exchanges with limited success evens that initial skewed sampling.

Assume that primarily those with light bleed problems reported in here... for the sake of discussion, 50 people reported light bleeding, and only 5 reported none. That may be statistically skewed for the reason you cited.

However, if those 50 people exchange their devices and 40 receive one that still has bleeding, then that number rises to 90. Of the 40, if they exchange and 30 have a bleeding unit, then that would be 120. With each iteration, the reports will help level out any statistical skew.

If on the other hand, if those original 50 exchange their devices and receive bleed-free units, then it becomes 50 defective, 55 defect-free. (the 50 that were exchanged plus the original 5 defect-free)

All that to say, the running historical data points to a legitimate issue with light bleeding beyond any personal quirks about perfection.

My iPad 2 has some light bleed... only noticeable in a completely darkened room at over 75% brightness. I then checked my iPad 1... it has light bleed that is perhaps worse than the iPad2 (I never noticed it in over a year of everyday use) but it is evenly distributed across the entire screen. No part of the screen stands out as being worse than the other.

Most of the iPad2's screen is completely pitch black with only 2 or 3 glowing spots along the edge. That gives the appearance of it being "worse".

It's interesting.
 
this is funah said:
a self-selected sample is not at all accurate of the actual ratio produced.
Click to expand...

viewliners said:
plus the fact that people whose iPad screens don't have this issue are probably not even reading this thread... :D (or they have the problem, but they don't notice it... or care about it.... :) )
Click to expand...

I hate to admit it but I have to agree. The "tons" of people with "perfect" screens out there probably haven't even heard about the MacRumors forums & will thus not post their positive experiences with their iPad 2 LCD screens in this thread. Therefore, I guess we should take our findings from this thread with a grain of salt to a certain extent. :eek:
 
replacement iPad better but not bleed-free

My first iPad bought a week after launch had very bad bleeding on lower left side and to a lesser extend on bottom and right side. I've been monitoring this thread and waiting for the time to get a replacement.

Yesterday I went to the Apple store at South Coast Plaza in Orange County and the genius was very nice - he told me that the policy they have been told communicate is "1 replacement allowed due to light leak problem only". He did let me look at the brown box replacement iPad before I left but it was hard to tell in the store. I brought a hoodie and probably looked like a fool huddled under it trying to find light leakeage on the new one.

now the result.... better but not perfect.

there are two small areas of light leakage still. At 50% brightness in a dark room on a black screen you can see it if you look for it. At 100% brightness in a dark room on a black screen you can plainly see it. I can live with this one.

My guess is that this may never be fully resolved and given how the iPad 2 is assembled (glue instead of clips, etc.) it may never fully disappear.
 
I personally went through four iPad 2s (last two couple of days ago directly shipped from China) and have checked out over a dozen of them at Apple stores and Best Buys. From my personal sampling of nearly 20 different iPad 2s, 100% of them have light leaks to a varying degree.

The reason you don't hear about it more often on the news or the internet is because 95% of the population don't see it as a deal-breaker. Only the enthusiasts and tech-junkies like us see it as a problem.

If you are a type of person who can't stand a single stuck/dead pixel on a small high-res Retina display (like me), my advice to you is wait.

Finding a perfect iPad2 is like finding a Willy Wonka's golden ticket. It is possible, but highly improbable at this moment.
 
bscheffel said:
My guess is that this may never be fully resolved and given how the iPad 2 is assembled (glue instead of clips, etc.) it may never fully disappear.
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I agree with this point.

To hold the bezel/outer glass in place to the base when the glue is first being applied, the iPad 2 probably has to be held in place with "force". Then after a while, that "force" will be released & left the glue to continue to dry up. As we all know, applying any kind of force on the LCD screens will cause some blotches/light bleeds to be seen. The tightness of the outer glass when held in place eventually by the glue is most likely causing a lot of pressure on the LCD screens & thus we're able to see the "exaggerated" light bleeding that we're seeing in some of the photos that were being posted in this thread. The thinness of the iPad 2 may also contribute to the issue as there are simply no other spaces for "the pressure to go". Notice that most of the bleeding come on the edges of the screen & the bezel/glass cover piece where the glue are applied are on the colored bezel section, which is also the place where a huge amount of force (probably) has been applied when gluing it in place.

Although, this seems like just a simple assembly issue, it might probably be fixed if more time & care are being taken to ensure that force are not being over-applied when the bezel/outer glass are being attached onto the base of the iPad 2 & then wait for the glue to dry out a bit & check for light bleeding at the assembly plants, the continued massive demand of the iPad 2 means that it is just not feasible for them to do that. So if it is not possible for them to do that, unless they re-design the iPad 2, I think this issue is just going to last thru the iPad 2 production life. :(

Unfortunately, I humbly think that ultimately, this may be a tradeoff for Apple being so obsessed with the thinness of the iPad 2. :(
 
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SPEEDwithJJ said:
I agree with this point.

To hold the bezel/outer glass in place to the base when the glue is first being applied, the iPad 2 probably has to be held in place with "force". Then after a while, that "force" will be released & left the glue to continue to dry up. As we all know, applying any kind of force on the LCD screens will cause some blotches/light bleeds to be seen. The tightness of the outer glass when held in place eventually by the glue is most likely causing a lot of pressure on the LCD screens & thus we're able to see the "exaggerated" light bleeding that we're seeing in some of the photos that were being posted in this thread. The thinness of the iPad 2 may also contribute to the issue as there are simply no other spaces for "the pressure to go".

Although, this seems like just a simple assembly issue, it might probably be fixed if more time & care are being taken to ensure that force are not being over-applied when the bezel/outer glass are being attached onto the base of the iPad 2 & then wait for the glue to dry out a bit & check for light bleeding at the assembly plants, the continued massive demand of the iPad 2 means that it is just not feasible for them to do that. :(

Unfortunately, I humbly think that ultimately, this may be a tradeoff for Apple being so obsessed with the thinness of the iPad 2. :(
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Good points.

Having followed this since launch day, I agree that it arises from the manner in which the screen is affixed...glued, not clipped. My first iPad 2 had the more typical intermittent backlight bleed. I only had it in my hands a few hours as I returned it a few hours later for a screen that is as perfect as I've seen on here. It appears that even the perfect screens may have some bleed but the line, at least for me, between acceptability and rejection is the manner in which they bleed. The screens with a VERY subtle EVEN bleeding are much more acceptable to most people, it seems, on here, than the ones with intermittent bleeding which is more obvious to the naked eye.

I have taken my iPad 2 into the dark more times than I can remember in the last week, and I cannot discern any bleeding...at least with my eyes. If there were any bleeding, undetectable to me at least right now, it would be of the "even" variety which just shows up as an "unnevenness" in the blackness of the screen.

That being said, I have put my iPad 2 side-by-side with my iPad 1, and my iPad 2's screen is every bit as bright and vibrant as my iPad 1's screen...both with no obvious bleeding.

Go figure...
 
I think the reason that some of the iPad 2 LCD screens have got uneven bleeding is mainly due to the fact that the glue being used to hold the bezel/glass cover in place are not evenly spread out. :(

I'm willing to bet that those portions of the screen where there are blotches/light bleed on the edges of the screen are the parts closest to the areas of the bezel section where there are overly applied glue. Therefore when the bezel/glass cover is being held in place, the "extra amounts of" glue in those areas cause more pressure on the corresponding edges of the LCD screens, which gives us the uneven light bleed effect. :(

The LCD bleeding on the original iPad 1 does not exhibit uneven light bleeding because the bezel/glass covers are being clipped on, thus there are no uneven glue application effects.
 
LCD is held down by screws. The uneven torque applied is the main culprit of the light leak, not the glue, imho. I bet if you loosen the screws a bit, the light leak will be totally eliminated. Of course the top glass might not fit tightly as a result.

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Extract0r said:
LCD is held down by screws. The uneven torque applied is the main culprit of the light leak, not the glue, imho. I bet if you loosen the screws a bit, the light leak will be totally eliminated. Of course the top glass might not fit tightly as a result.
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Sure, the LCD is hold down by screws, but the bezel/glass cover is attached using glue. With the thinness of the iPad 2, what makes you think that the attachment of the bezel/glass cover does not contribute to the blotches/light bleeding of the LCD screens at all? :confused: I mean it's not like there is a lot of space between the bezel/glass cover & the LCD screen when the whole iPad 2 has been assembled, is it? :confused:
 
SPEEDwithJJ said:
Sure, the LCD is hold down by screws, but the bezel/glass cover is attached using glue. With the thinness of the iPad 2, what makes you think that the attachment of the bezel/glass cover does not contribute to the blotches/light bleeding of the LCD screens at all? :confused:
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I think they should revise the design similar to the iPhone 4 back glass housing that slides off like many phone battery covers... Of course you need screws to hold the glass in place but that eliminates the glue. The screws can probably be positioned at where the pin connector port is located.
 
~~Hello~~ said:
I'll only get another with backlight bleeding. I'm fed up of the Apple store. :(

I seriously feel like throwing the ipad in the bin.
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Hey, be optimistic. I'm sure that if you do an exchange with Apple, you'll very likely get an iPad with a very minimal or no bleeding screen.

Hopefully, you'll be successful. Good luck to you again. :)
 
Posted a couple pages back that I was waiting for an iPad that i ordered early in May after reading on gizmodo that LG has reportedly isolated the issue of bleeding iPad 2s. Personally, i've gone through a couple iPad2s which had horrendous bleed. The one i've received from apple yesterday morning is almost perfect. Scratch that, the screen is perfect. I couldn't complain about this one at all.

My experience: lined up on launch and got one, exchanged same day because i saw bleed (before anyone posted on the internet), that unit had it too, but i waited...then exchanged. A couple more cycles later, I finally returned it by mid april and said i'm done...until i read the gizmodo article and starting seeing success stories on this forum (as few as they were). So I placed my order May 6th, came in yesterday, played dead space, watched alien1 and saw no bleed...in my head I kept thinking "don't bump it up to 100 cause you know you'll see something, just be satisfied that at 50% you don't see any bleed", then i bumped it up to 100...cause im an idiot, but sure enough no bleed...minimal at best, and i mean minimal, maybe a 2cm bulb is visible but only if you look really hard. It sounds like I'm excited...cause i am, no longer will i have to call support or make trips to the apple store.

But theres bad news in all of this...but i kind of don't care cause i'm already past my wits end. I felt a little indentation on the back aluminum. Sure enough, theres a tiny dent on the back...lmao, but screw that. i'm done. seriously, i'm not returning this, exchanging it, selling it...I'm just done. Really the screen is more important to me than the back anyways. So I'm good.

Hopefully the rest of you battling it out will get better results. Since mine happened in one shot, I couldn't recommend that you go the same route i did, which is to say return it and wait the 1-2 weeks shipping time and pray that you get a good unit. But...if you're sick of your same cycle (exchange, test, wait, etc.), i'd give it a shot if you can muster the downtime without an iPad. (i couldn't...i bought an iPod touch lol.)
 
peaceActivist said:
Posted a couple pages back that I was waiting for an iPad that i ordered early in May after reading on gizmodo that LG has reportedly isolated the issue of bleeding iPad 2s. Personally, i've gone through a couple iPad2s which had horrendous bleed. The one i've received from apple yesterday morning is almost perfect. Scratch that, the screen is perfect. I couldn't complain about this one at all.

My experience: lined up on launch and got one, exchanged same day because i saw bleed (before anyone posted on the internet), that unit had it too, but i waited...then exchanged. A couple more cycles later, I finally returned it by mid april and said i'm done...until i read the gizmodo article and starting seeing success stories on this forum (as few as they were). So I placed my order May 6th, came in yesterday, played dead space, watched alien1 and saw no bleed...in my head I kept thinking "don't bump it up to 100 cause you know you'll see something, just be satisfied that at 50% you don't see any bleed", then i bumped it up to 100...cause im an idiot, but sure enough no bleed...minimal at best, and i mean minimal, maybe a 2cm bulb is visible but only if you look really hard. It sounds like I'm excited...cause i am, no longer will i have to call support or make trips to the apple store.

But theres bad news in all of this...but i kind of don't care cause i'm already past my wits end. I felt a little indentation on the back aluminum. Sure enough, theres a tiny dent on the back...lmao, but screw that. i'm done. seriously, i'm not returning this, exchanging it, selling it...I'm just done. Really the screen is more important to me than the back anyways. So I'm good.

Hopefully the rest of you battling it out will get better results. Since mine happened in one shot, I couldn't recommend that you go the same route i did, which is to say return it and wait the 1-2 weeks shipping time and pray that you get a good unit. But...if you're sick of your same cycle (exchange, test, wait, etc.), i'd give it a shot if you can muster the downtime without an iPad. (i couldn't...i bought an iPod touch lol.)
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I just hope we can give it 2-3 more months at the most until these "fixed" panels are supposedly all in retail-channels by then... God - this is going to be a long wait :eek:
 
crellion said:
I just hope we can give it 2-3 more months at the most until these "fixed" panels are supposedly all in retail-channels by then... God - this is going to be a long wait :eek:
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2-3 more months.... Maybe by then, it may even be better to wait a few more months for the release of the iPad 3 & buy one of those instead. :p

Just kidding, of course. :eek:
 
What's the reasonable time limit on trying an exchange? Had mine nearly a month and ideally would like one with much less significant bleed. Have I left it too late?
 
SPEEDwithJJ said:
Hey, be optimistic. I'm sure that if you do an exchange with Apple, you'll very likely get an iPad with a very minimal or no bleeding screen.

Hopefully, you'll be successful. Good luck to you again. :)
Click to expand...

I'd prefer a refund, they said themselves all ipads have some degree of bleeding. If they can't fix it then they should offer refunds, especially when they admitted it's a fault.

Don't get me wrong if you take away the backlight bleeding and pixels the ipad 2 is great. I just don't think for the price i paid that it should have backlight bleeding. Some people won't notice it but i use apps which have black screens.

Oh well, thanks for wishing me good luck. In the worse case scenario I'll just sell it on ebay. Perhaps to someone who is slightly blind :p
 
~~Hello~~ said:
I'd prefer a refund, they said themselves all ipads have some degree of bleeding. If they can't fix it then they should offer refunds, especially when they admitted it's a fault.

Don't get me wrong if you take away the backlight bleeding and pixels the ipad 2 is great. I just don't think for the price i paid that it should have backlight bleeding. Some people won't notice it but i use apps which have black screens.

Oh well, thanks for wishing me good luck. In the worse case scenario I'll just sell it on ebay. Perhaps to someone who is slightly blind :p
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Oh, I see. Go for a refund then. I'm sure Apple will be more than willing to give you a full refund for all the hassle/trouble that you've gone through.

By the way, are you going to get any other tablets to "replace" the iPad 2?

Good luck. :)
 
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