Is backlight bleeding normal

Discussion in 'iPad 3 Forum' started by tmurray315, Mar 16, 2012.

  1. applechick

    applechick
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    Thank you for the information. Mine is not visible unless I look for it, which I seem to keep doing. I would rather not have to drive to the Apple store as it isn't close and I've already set this iPad up and put zagg body shield on it!
     
  2. dynasty82

    dynasty82
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    It haven't got any bigger since I've noticed it but it's only been a week. I don't think it will get any worse but I can't say for sure. I just got mine replaced since it annoyed me once I saw it.
     
  3. Lunar

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    If you can actually see light shining though under the screen, rather than a touch of greying in a small area on the edge of the screen in a darkened room with brightness higher than normal, this obvously warrants replacement. However if you cannot see it at all, unless as you say you have to specifically look for it, then maybe it's not worth changing especially if everything else is okay..ie. no bad pixels etc. I agree with you though about continually looking for it, it's no different to your first tiny chip on the windscreen of your new car for example, human nature seems to fixate our eyes on it...

    I was exactly the same with my 1st ipad3 which had a tiny partical of dust under the screen which was visible on white or light grey color screens. It looked like a tiny 1mm very fine hair 2"" in from the side, yet I didn't notice it until the second day because it was barely visible, but once I spotted it, I could then see it all the time because I knew exactly where to look.
    When I returned it, the store staff said they could'nt see it, well one said he could just about see something.. but I could see it fairly easily, I think one of the biggest fears when returning something like this is that we may get one with something else that's not perfect.

    The fact is, these things are assembled by human beings, and even when machines make them, there will always tiny differences in every single one, differences perhaps that are not visible to the human eye, I have a tiny amount of light bleed in a couple of places which is just detectable if I turn up the brightness and look for it in a dark room, but AIS previously, I simply cannot see it at all in normal use and I could end up with a worse one, so I'm keeping it. I'm streaming TV on it at the moment which has a small black border all round the picture, and I cannot see any sign of light bleed anywhere, with brightness at 45/50% with just a small low 15watt wall light on.

    By it's very nature, glass or something like clear plastic perpex will easily transmit light, IOW if you shine a light at the end of a clear plastic rod it will emit light from the other end, hence the whole principle of fibre optics, so you will always get a certain amount of bleed glare even if just from illuminated pixels it's the nature of the beast..lol. BTW.. something that many people don't realise, and that is, unlike the old CRT TV's, LCD screens should'nt really be viewed in a dark room anyway, due to the very fact they have backlights. The old Cathode Ray Tubed TV's obviously had no backlight as they illuminated special prospher coatings at the rear of the front tube glass, and so to some extent looked better in subdued light, same as Super Oled technology (which IMO is the future for TV panels) that however does not apply to LCD panels which require backlighting, otherwise your blacks on a LCD panel in a dark room will look more a dark grey than black.. anyway enough of my ramblings.
     
    #83 Lunar, Mar 22, 2012
    Last edited by a moderator: Mar 22, 2012
  4. applechick

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    Haha very good points you bring up. Thank you :)
     

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