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Probable explanation for Ipod Touch LCD deficiencies

27699 Views 89 Replies Latest reply: Apr 2, 2008 10:56 PM by jr20079 RSS
  • jmpage2 Calculating status...
    The genius argued with me that it was because it was my 'badly encoded' movie that I had the issue, even though bright scenes in the movie looked fine. He even said that the iPod touch didn't have as good of a screen as the iPhone and I was being too picky about it.

    This isn't a simple 'swap it out and everything's fine' sort of situation. I am now on my 2nd iPod with the same issue, after finally convincing them not to hit me with a restocking fee at the Apple Store I purchased one at Best Buy... guess what, same issue.
    Variety, Windows Vista
  • Benny B Level 1 Level 1 (10 points)
    Are you an LCD expert since you can say it so definitely?
    explain one thing then... call up a photo on a good laptop LCD and then view it from extreme angles. See funny contrast issues? Why can't this be the same thing only in reverse?
    iMac Core Duo, 20" 2GHz, 256 VRAM; iPod Touch 16 Gb, Mac OS X (10.4.10)
  • jmpage2 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Sep 17, 2007 10:28 AM (in response to Benny B)
    Maybe you didn't notice that engineer WITH LCD MANUFACTURING EXPERIENCE who started the thread who is pretty confident that it IS an issue with the panel and not with software.

    Yikes, some real DAFT folks around here that simply don't want to admit that this thing has some serious issues.
    Variety, Windows Vista
  • Benny B Level 1 Level 1 (10 points)
    Currently Being Moderated
    Sep 17, 2007 10:38 AM (in response to jmpage2)
    I did notice that it was started by an engineer. I also noticed that he hadn't actually seen one and diagnosed it from seeing photos. Just not good enough for the scientist in me.
    This isn't being fanboy. I'm looking to help fix the problem not just posting useless *****g.
    iMac Core Duo, 20" 2GHz, 256 VRAM; iPod Touch 16 Gb, Mac OS X (10.4.10)
  • jmpage2 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Sep 17, 2007 10:45 AM (in response to Benny B)
    I'm not just posting 'useless ********'. I'm also an engineer with a lot of electronics experience, just no experience with LCD construction. I've owned two of these and from the way the screen behaves I think that it's far more likely that this is a hardware defect than that some patch or contrast slider is going to fix this problem.
    Variety, Windows Vista
  • Leftblank Calculating status...
    Currently Being Moderated
    Sep 17, 2007 10:46 AM (in response to Benny B)
    Because someone who actually is an expert did explain the reason, and it's just not the same.
    Windows XP Pro
  • Stephen Lang Level 1 Level 1 (15 points)
    The LCD really seems to be displaying the right shade of black or whatever, you can see this when you tilt the screen. But then the colors overall start to wash out, so when you watch movies you're constantly cognizant of viewing angle, it's a pain.

    You can tell by looking at an affected unit in person, that it has to do with lighting somehow. Like when you tilt a cell phone with cheap screen, and the blacks wash out in that weird way (hence the term 'negative effect'). It's not just color fading, it's like there's a glare obstructing the screen. Except with Touch, the bad blacks appear when you are looking at the unit straight on.

    I don't know if the OP is exactly right, he's just offering a suggestion. But he's probably somewhere in the right area. There's something going on with reflections and lighting, and not simply whether the LCD itself is calibrated right.

    I doubt a firmware update can fix this, but I don't know for sure.
    PowerBook G4, Mac OS X (10.4.2)
  • Kyle Hayes Calculating status...
    I have some videos on my iPod that I converted from my DVDs and the Apple store said they won't check those out because they are not supported. Is there a good example of something that I can buy in the iTunes Store that shows this issue that someone could possibly point me at? This way I have a good example of their content that is having the issue.

    Thanks,
    Kyle
    Dualie G5, Mac OS X (10.4.10), iPod Touch 16gb
  • jmpage2 Level 1 Level 1 (0 points)
    Someone said that any of the Battlestar Galactica TV series episodes will highlight the problem vividly as the show has a dark cast to it and lots of outer space scenes, etc.
    Variety, Windows Vista
  • Stephen Lang Level 1 Level 1 (15 points)
    Currently Being Moderated
    Sep 17, 2007 11:31 AM (in response to Benny B)
    Have you read any of the descriptions of the problem? All LCD's start to look bad when viewed from off-angle.

    The problem is that the iPod Touch (or certain units) look bad when viewed directly head-on. That's when you get the weird artifacts, tilting the screen helps with the artifact but then you start to degrade the overall picture quality (as happens with off-axis viewing of all LCD's.)
    MacBook, Mac OS X (10.4.10)
  • Kyle Hayes Level 1 Level 1 (65 points)
    Another thing that I noticed when I was in the store was that because they have so much ambient and direct light, that the light tends to make those black issues look a lot less severe then when you are at home and only dealing with indirect light in your room.

    For instance, the way to see what I mean is if you have a halogen but it a few feet above your head and look at the iPod, it looks a lot different. This may be an issue that is going to be a harder sell at the Apple Store.

    Btw, I ended up having some Heroes episodes in iTunes and those have the same issue. A lot of dark scenes and what not.
    Dualie G5, Mac OS X (10.4.10)
  • Jaqueh Level 1 Level 1 (35 points)
    Currently Being Moderated
    Sep 17, 2007 11:44 AM (in response to Benny B)
    benny rhymes with idioty?
    well thats besides the point, i am sure it is not the gamma issue, because in different lighting sources, the black level problem changes. for instance, in a lighted room, the black problem is almost undetectable because of the chemical property of the screen's coating. that is why in a dark room, the coating is not being utilized so the real screen (without an illusion created by the coating) can be seen, and it looks dreadful. Also, in a dark room, or in sunlight, tilting the screen proves to have differenting results. Which in no way means its a gamma problem because the actual screen is being affected by the tilting.
    Ibook G4, Mac OS X (10.4.10)
  • britblogger Calculating status...
    Kyle, that's just another way of them trying to dismiss your claim, and a very valid claim.

    Black is black, whether on a ripped DVD or from a purchased iTunes download.

    I took mine back this morning - got a full refund.

    Seriously, if you're not happy with your $400 slightly ugly girlfriend, take her back and get your money back - don't take no for an answer. the law protects you from being sold substandard products.
    MacBook, Mac OS X (10.4.10)
  • Benny B Level 1 Level 1 (10 points)
    Currently Being Moderated
    Sep 17, 2007 12:31 PM (in response to Jaqueh)
    you show some real class there...
    iMac Core Duo, 20" 2GHz, 256 VRAM; iPod Touch 16 Gb, Mac OS X (10.4.10)
  • Mark Ross1 Calculating status...
    Currently Being Moderated
    Sep 17, 2007 1:46 PM (in response to jmpage2)
    Wow, are you saying an Apple Store "genius" tried to tell you that was from poor encoding? That's quite frankly horrible and unacceptable. I think I'd actually fire them if I was their manager. Gives Apple a really bad name saying crap like that.

    Sorry that happened to you.

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