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I like thread like this on MR forum ... :rolleyes:
A lot of people without problem in real usage who is desperately looking for a problem in a test that nothing has to do with normal usage.

Yeah, because, as you know, we just LOVE to find problems that bug us and have us spend time trying to solve. We just LOVE to fill our time with problems.

Yup, I think this guy hit the nail on the head. :rolleyes:

Heads up, we don't like looking for problems. These are things we notice and want corrected. They shouldn't be happening to begin with.
 
Yeah, because, as you know, we just LOVE to find problems that bug us and have us spend time trying to solve. We just LOVE to fill our time with problems.

Yup, I think this guy hit the nail on the head. :rolleyes:

Heads up, we don't like looking for problems. These are things we notice and want corrected. They shouldn't be happening to begin with.

A lot of people here is asking "how can I search for the problem ?".
Do you know what does it mean ?
They are not seeing the problem, but since someone is stating there is an "interlacing" issue on the display, they are trying to see it.
Interlacing ???? Do you know what it means ? The display on idevices is not interlaced at all, so the only thing I can assume is there are a few defective units out there.
 
F1 here, no problems. So it does not depend on serial numbers.

Mine is an F1 also, according to chipmunk it was built in December , and the screen is perfect.
As usual no correlation between serial number and defect. Is a typical forum reality distortion ...
 
Mine is an F1 also, according to chipmunk it was built in December , and the screen is perfect.
As usual no correlation between serial number and defect. Is a typical forum reality distortion ...

I have to disagree. Every iPhone 5s that I have purchased has this problem
 
I have to disagree. Every iPhone 5s that I have purchased has this problem

I also can confirm that almost every iPhone 5S I saw so far (more than 20) has the problem. Also I noted that the problem existed with older iPhones as well but got far worse with the iPhone 5S.

Some people don't see the interlaced lines or just don't care, but that doesn't mean the problem with interlacing lines doesn't exist or exists only on a few phones.

When I was in the Apple Store one of the geniuses asked me if I could check her phone for the lines as well. Immediately I saw them and showed them to her. Once I showed her, she could see them aswell but still didn't care too much. Different people care about different things, so it's normal that some get bothered by the lines and some don't. But it's still a fact that Apple uses different panels with different qualities for the same product, which is not ok since everybody payed the same (premium) price.

It's too bad that there is no way to find out which panel is used in which iPhone. I'm really curious which company of LG/Sharp/Japan Display builds the good ones and which the bad ones.
 
I noticed that there are 2 versions of the interlacing image floating around. One doesn't cause a flicker on my 5s, the one posted here does. Neither if them flicker my 4S. Quite strange.
 
I noticed that there are 2 versions of the interlacing image floating around. One doesn't cause a flicker on my 5s, the one posted here does. Neither if them flicker my 4S. Quite strange.

I think I read somewhere that the older one doesn't work properly on iOS7 (something with the zoom). On my first and also on the latest iPhone 5S neither the new or the old picture flickered. On the other two the new picture flickered. One of the 2 flickering iPhones had subtle interlaced lines and the other one had a horrible screen which looked like a very low quality screen and didn't look Retina at all (full of interlaced lines which made everything look blurry).
 
Everyone here is just looking at an issue that doesn't exist.
Easy.
Interlaced screen are CRT, are you using a special version iPhone 5S with CRT display ?
LCDs are progressive scan displays, so please stop bitching about a false problem.
There is NOT such a thing like an interlaced IPS screen. This is a fact.
Keep watching at a false image test which is creating an optical illusion of flickering is just plain silly, and a waste of time.

Thee could be defective screen with flickering problems, and maybe some users here was unlucky and found one, but surely this is not something concerning every iPhones.
This is just the well known OCD that storms through forums like this.
 
@Max(IT)

I don't think that anybody here actually meant the screen really is interlaced, but it's the way how to describe the issue. If I looked at these displays I clearly could see black lines and if you have a line with the Picture, a black line, a line with the Picture, a black line, etc. the best way to describe it is calling it "interlaced". Also the problem exists very well. Even the genius at my local Apple Store could see it and agreed that this is not normal. Again, just because you can't see it, doesn't mean it doesn't exist. I got 4 iPhone 5S now, 2 had it and 2 don't. All the "public" iPhones in my local Apple Store had it.

Edit: The lines I saw on all these phones were NOT when looking at the test image, they were visible during normal use! The test image is just kind of a stress test to the display which the "defective" or low quality ones can't handle.

Edit 2: You say that the flickering is just a optical Illusion. Well then please explain why 2 of my iPhone 5S Displays caused this "optical Illusion" and 2 don't? With my iPhone right now I don't have ANY flickering at all when looking at the test image (and yes, i tried both Versions of the test image).
 
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@Max(IT)

I don't think that anybody here actually meant the screen really is interlaced, but it's the way how to describe the issue. If I looked at these displays I clearly could see black lines and if you have a line with the Picture, a black line, a line with the Picture, a black line, etc. the best way to describe it is calling it "interlaced". Also the problem exists very well. Even the genius at my local Apple Store could see it and agreed that this is not normal. Again, just because you can't see it, doesn't mean it doesn't exist. I got 4 iPhone 5S now, 2 had it and 2 don't. All the "public" iPhones in my local Apple Store had it.

I'm not saying your iPhone wasn't defective, I can't know.
I'm saying it's not "interlaced" in any way.
I'm also saying that is not a common issue since I've seen dozens of iPhones and never seen something like you described.
With this kind of issue in this forum there is always someone saying "if you can't see it ....".
Well, the point is that I CAN. I'm a pilot, I have my eyes medically examined twice a year for ANY kind of problem (and I mean ANY) and I have a perfect visus.
I'm not superman but if I can't see the issue , the issue is not existent , at least on the iPhones I owned and saw.

Edit: The lines I saw on all these phones were NOT when looking at the test image, they were visible during normal use! The test image is just kind of a stress test to the display which the "defective" or low quality ones can't handle.

Again I'm not denying your iPhone has a problem.
It just isn't related to interlacing and it's not a common behavior in every iphone.

Edit 2: You say that the flickering is just a optical Illusion. Well then please explain why 2 of my iPhone 5S Displays caused this "optical Illusion" and 2 don't? With my iPhone right now I don't have ANY flickering at all when looking at the test image (and yes, i tried both Versions of the test image).

I'm just saying images like that are well known and used in medical examination to create false movement and flickering ....
Every LCD should flicker with that kind of images, especially at lower brightness ...
 
I'm sorry but I have to say it again, since you haven't seen the issue before you obviously have no idea what you are talking about. Seeing the issue is not just about eyeseight as I use glasses and I can see it very well. Some people are more sensitive for such things than others and even though they were able to see it they still can't. I wrote about the other Genius who wanted me to check her phone since she couldn't see the lines before. Once I showed her, she could see them very well aswell. That she still didn't care about them just shows again that some people are more sensitive to these things than others. But the fact that some displays have these lines and some don't is proof that it is not normal. I don't know if these Display are defective or just poor quality but they show a behaviour that is not retina.

I also am not talking about only one phone. As I wrote before I tried several phones (4 were mine, 2 were from the geniuses and about 20 of the public phones in the Apple Store which are there to try out). Besides 2 ALL of these phones had the issue. Some of them had it very strong and some just very subtile but it was visible to me at all the time (not just with the test image). I also noted that it is worse with blue and grey colors. (Just that you don't get me wrong: The issue during normal use is NOT flickering. It's small black lines that seem to move very fastly, a behaviour I also saw on very cheap phones with very cheap LCD Screens. So if you look at your display during normal use and are looking for a flickering like with the test image, that's not what I'm talking about. Again, the flickering just appears during the stress test on the bad screens. Normally it shows as black lines which make the picture look blurry and less sharp and gets the Impression the display has a lower resolution. A good Retina display on the other hand looks like a book print.)

Maybe you got lucky with the phones you had or maybe you just don't see it even though you could (see my example with the Genius). Maybe there are just some of the productions affected so that some regions got all the "defective" phones and some regions didn't get any. The only thing I know is that in my local Apple Store I couldn't find any "public" iPhone without the issue. But of course not every phone worldwide has it, otherwise the one I have right now would have it too. But it's also a fact that the Genius who switched 3 times my phone saw it as well, was very surprised that so many phones were affected, agreed that it is not a normal behaviour and told me to report it internally to Apple since he also thought there were too many phones affected. He wouldn't report it to his bosses if he weren't convinced that it is a widespread real issue! No offense, but this counts much more to me than the opinion of somebody who never saw the issue and therefore just denies it.

Also the test image for sure isn't a optical illusion. First of all with low backlight the flickering appears less and gets worse as brighter the backlight is. 2nd - I repeat myself again - some screens don't flicker at all. You can have 2 different phones side on side, one flickers like hell and the other doesn't at all, so for sure the flickering isn't an optical illusion! I know there exist some Pictures which can cause optical illusions, but this test Image in this case is not. Your explanation just shows again, that you have no idea what you are talking about and therefore you are mixing some things which are not related and get false conclusions out of it.

But the point is that nobody particulary gets bothered by the flickering test image. If it were just that picture, I honestly wouldn't care at all. It's during normal use were the issue - to some people - is very obvisouly visible. On my phone it was so bad it caused me headache and dizziness! The test image is just a fast check to find out if the Display is affected by the issue. But I agree that the people who really can see the issue don't need the test image.

This thread here is to help people who actually have the same issue with their phones and share the experiences, also with AppleCare. Right now I'm not affected by the issue anymore but I write here to share my experience on how Apple reacted, maybe it will help somebody at their Genius Bar meeting. If all the phones you saw and own are perfect - or maybe you just think they are - than that's great for you. Actually I don't want to convince you that your phone is defective, maybe you got a perfect phone, like i did right now. Also if your screen has the lines and you don't see them, I totally agree that you shouldn't look for them. But the point is, it is a real and widespread problem, how widespread it is nobody knows, but for sure many people in this thread actually have this issue with their phone and are looking for help and adivise. Many of them for sure don't earn as much as a pilot and therefore want a premium phone (and not some crappy screen) if they payed a premium price. The thing you do with telling these people that the issue just doesn't exist because you oh so perfect eyes would see it otherwise is just trolling around. Everybody heared your opinion now, everybody knows you can't see the issue, there is no reason why you should continue trolling around in this thread. There are plenty of other threads with other issues which I never experienced on my iPhone, I also don't go there to write to these people that their issue isn't real because my iPhone isn't affected (or I just didn't realize the issue yet).
 
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I'm sorry but I have to say it again, since you haven't seen the issue before you obviously have no idea what you are talking about. Seeing the issue is not just about eyeseight as I use glasses and I can see it very well. Some people are more sensitive for such things than others and even though they were able to see it they still can't. I wrote about the other Genius who wanted me to check her phone since she couldn't see the lines before. Once I showed her, she could see them very well aswell. That she still didn't care about them just shows again that some people are more sensitive to these things than others. But the fact that some displays have these lines and some don't is proof that it is not normal. I don't know if these Display are defective or just poor quality but they show a behaviour that is not retina.

.. CUT ..

A lot of words to say a truth: this is not a device issue, but an user issue ...
If the same screen that IN YOU OPINION IS DEFECTIVE, to the great majority of other customers is perfect, it's not an iPhone problem, it's your.

You said that you saw ALL OF THE DISPLAYED IPHONES IN THE APPLE STORE WITH THE ISSUE.
All of them. Every single one.
Good ... and there were a crowd of people at the desk complaining about how bad the displays were ? I'm sure NOT.
It was only you, and the poor Genius trying hard to satisfy your expectations as they told him to do with every customer.
All the other people were looking at the line of iPhones, playing with them, enjoy them with not a single word about "interlaced displays".

Think about that .... it's you (and a few others), not a defective display.

Btw Im strongly convinced that if you don't like the iPhone's screen, you shouldn't buy one (pay a lot of money for something that not match your expectation is not good) .... but since all the LCD share the same technology, you are probably going to encounter the same "issue" with every brand.

I'm sure your actual iPhone has the same "issue" as the others, maybe just less noticeable (because displays change from batch to batch), but still present, as on any LCD screen.
 
Again you have no idea what you are talking about. Just because some people get bothered by an issue more easily than others doesn't mean it doesn't exist. Just a small example: some people don't hear the difference between good speakers and crappy speakers, but that doesn't mean that all speakers have the same quality. It's the same here with the displays.

I tried to explain it to you very detailed again and again but honestly I just got bored of you by now. There are always trolls in forums like this and you are just one of them. Right now I'm very happy with my iPhone screen as it is a good one again. Believe it or not actually I don't care. This topic isn't about you, it's about people who realized the same quality loss on the iPhone and are looking for a solution since they love their iPhone otherwise. These people I will gladly answer to if they need to know some further Information. Your posts I will just ignore from now on since you actually have no usefull information at all and you proof again and again that you have no idea what you are talking about.
 
Again you have no idea what you are talking about. Just because some people get bothered by an issue more easily than others doesn't mean it doesn't exist. Just a small example: some people don't hear the difference between good speakers and crappy speakers, but that doesn't mean that all speakers have the same quality. It's the same here with the displays.

I tried to explain it to you very detailed again and again but honestly I just got bored of you by now. There are always trolls in forums like this and you are just one of them. Right now I'm very happy with my iPhone screen as it is a good one again. Believe it or not actually I don't care. This topic isn't about you, it's about people who realized the same quality loss on the iPhone and are looking for a solution since they love their iPhone otherwise. These people I will gladly answer to if they need to know some further Information. Your posts I will just ignore from now on since you actually have no usefull information at all and you proof again and again that you have no idea what you are talking about.

You got bored of me ? Who cares ?
I'm here since a while ... just a little more active than you, so any accusation of being a troll is baseless ...

Did you speak about speakers quality ? Very well, good example. I'm not an expert, but I can REALLY hear the differences between a good headset and a cheap one. Maybe I don't care, but I surely can hear the difference.

In this case NO ONE IN THE STORE DID NOTICE THE AWFUL FLICKERING "INTERLACED" SCREEN OF ALL THE DISPLAYED IPHONES. Only you.

There are no information you can give, because there is no systemic problem in iPhone panels. There surely are defective units, as usual, but surely not a problem that could affect "all the iPhones displayed in the Apple Store" (again, your words).

I'm not calling you a liar, this has to be clear. I'm just thinking about a person with a particular sensitiveness regarding flickering on LCD displays. And surely you are not the only one.

Ps: if you were speaking about 1 or even 2 defective and returned iPhone, I could have trusted you without a word .... but you lost me when you spoke about "all the iPhone displayed" in the Apple Store.

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Nothing on my 5S, nothing on the HTC one, and nothing on the iPad.

You are looking at it wrong :D:D:D
 
I also can confirm that almost every iPhone 5S I saw so far (more than 20) has the problem. Also I noted that the problem existed with older iPhones as well but got far worse with the iPhone 5S.

Some people don't see the interlaced lines or just don't care, but that doesn't mean the problem with interlacing lines doesn't exist or exists only on a few phones.

When I was in the Apple Store one of the geniuses asked me if I could check her phone for the lines as well. Immediately I saw them and showed them to her. Once I showed her, she could see them aswell but still didn't care too much. Different people care about different things, so it's normal that some get bothered by the lines and some don't. But it's still a fact that Apple uses different panels with different qualities for the same product, which is not ok since everybody payed the same (premium) price.

It's too bad that there is no way to find out which panel is used in which iPhone. I'm really curious which company of LG/Sharp/Japan Display builds the good ones and which the bad ones.

I'm assuming its LG

----------

You got bored of me ? Who cares ?
I'm here since a while ... just a little more active than you, so any accusation of being a troll is baseless ...

Did you speak about speakers quality ? Very well, good example. I'm not an expert, but I can REALLY hear the differences between a good headset and a cheap one. Maybe I don't care, but I surely can hear the difference.

In this case NO ONE IN THE STORE DID NOTICE THE AWFUL FLICKERING "INTERLACED" SCREEN OF ALL THE DISPLAYED IPHONES. Only you.

There are no information you can give, because there is no systemic problem in iPhone panels. There surely are defective units, as usual, but surely not a problem that could affect "all the iPhones displayed in the Apple Store" (again, your words).

I'm not calling you a liar, this has to be clear. I'm just thinking about a person with a particular sensitiveness regarding flickering on LCD displays. And surely you are not the only one.

Ps: if you were speaking about 1 or even 2 defective and returned iPhone, I could have trusted you without a word .... but you lost me when you spoke about "all the iPhone displayed" in the Apple Store.

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You are looking at it wrong :D:D:D

All the iPhones 5s/5c at my local Apple store have the interlacing issue
 
I'm assuming its LG

The good ones or the bad ones?
My iPad Air has a gorgeous screen and I think to remember that Sharp made these screens (IGZO), so I don't think Sharp made the bad iPhone screens. But on the other hand LG already made the iPhone 4 screens and they were gorgeous too. I have no idea about Japan Display, but since Sony and Panasonic panels normally have good quality it would surprise me if they made the bad ones. After reading about the differences between LG and Samsung Panels on the Macbook Air, mostly probably LG made the bad ones, so your guess (if I interpreted it right) would be correct. :)
 
The good ones or the bad ones?
My iPad Air has a gorgeous screen and I think to remember that Sharp made these screens (IGZO), so I don't think Sharp made the bad iPhone screens. But on the other hand LG already made the iPhone 4 screens and they were gorgeous too. I have no idea about Japan Display, but since Sony and Panasonic panels normally have good quality it would surprise me if they made the bad ones. After reading about the differences between LG and Samsung Panels on the Macbook Air, mostly probably LG made the bad ones, so your guess (if I interpreted it right) would be correct. :)

the bad ones
 
I think I read somewhere that the older one doesn't work properly on iOS7 (something with the zoom). On my first and also on the latest iPhone 5S neither the new or the old picture flickered. On the other two the new picture flickered. One of the 2 flickering iPhones had subtle interlaced lines and the other one had a horrible screen which looked like a very low quality screen and didn't look Retina at all (full of interlaced lines which made everything look blurry).

That's only if you set it as the wallpaper. How I tested was just viewing the image via the Photos app. But if this new image flickers, I have the issue, correct?
 
That's only if you set it as the wallpaper. How I tested was just viewing the image via the Photos app. But if this new image flickers, I have the issue, correct?

Are you reading yourself ? You are asking how to chek for the problem :eek:
How to look at the test image ...

If you don't see a problem in normal daily use, well, the problem doesn't exists ...
 
I can't help but feel that opening this image and observing an anomaly is the equivalent of smearing mud on your car's headlights and complaining that they aren't as bright.
 
That's only if you set it as the wallpaper. How I tested was just viewing the image via the Photos app. But if this new image flickers, I have the issue, correct?

If you go on the first post of this thread, open the picture there in Safari and the picture flickers, then yes your display has the issue. I have one iPhone 5S and one iPhone 5 here which don't flicker at all with this picture, so flickering for sure is not normal.

But as I wrote before the flickering isn't the real issue, it's just a stress test to see easily which displays have minor quality. The real issue are thin black lines which are visible all the time on normal use. Because of these black lines people started calling it "interlaced" since interlaced has black lines too, that doesn't mean that we are actually saying the display IS interlaced, it just looks like. Since I'm not a native English spoken person I don't know how to describe it perfectly. In German the word is "zittern" which my dictionary says is dithering/jittering. That's what these thing black lines do. It looks like they move left/right/left/right extremely fast so the picture gets less sharp. There are some displays which shows the lines very strong and some very subtle. But all flickering displays show it at some point. On the non flickering displays I haven't seen it so far.

The point is, if your display flickers with the test picture but you can't see the black lines I described on daily use, I wouldn't recommend to swap the iPhone since chances that you will get a worse one are realistic.

On my side I didn't check the flickering picture and saw then the black lines. I first saw the black lines which was very disturbing to me, I then googled it to see if more people had the same issue and then found the test picture which proofed that something is wrong with the display, since the iPhone 5 of my girlfriend didn't flicker.

If you still decide to get a replacement be prepared, that you most probably won't swap it one time but two, five or even ten times.

Also if some people say there is no relation between black lines/flickering and serial numbers, it's still kind of a coincidence that my two good iPhone 5S and the good iPhone 5 of my girlfriend are all C39 iPhones and the bad ones I saw all had F2 and DN serial numbers. If you search a bit in this forum you will find more topics about the same issue which first time started for most people (also for me) with the iPhone 5.
 
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