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    CF-29 Touchscreen Protector Removal

    Discussion in 'Panasonic' started by Toughbook, Jan 30, 2009.

  1. Toughbook

    Toughbook Drop and Give Me 20!

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    As the thread title implies... This is a question about the touchscreen protector on CF-29s... I just received a couple and the screen on one of them was very scratched up. I decided to go ahead and remove the protector as it was badly scratched. Of course the screen below was virgin material. I need to list one tonight and was about to take pictures of it when I noticed a slight coppery prismatic effect in the lower center. This MUST have been when I pulled off the touchscreen. You can only see it at one certain angle. (Maybe two) You cannot see it at all when the laptop is on. I tired putting a screen protector but then it is visible pretty much at all times.

    I have never had this happen and think it must be due to the angle with which I removed the touchscreen protector. (I remember how I took it off) Or maybe the screen was a little too cold. (I didn't think it was)

    Anyone ever have this happen to them? And or a fix for this issue?
     
  2. coffey7

    coffey7 Notebook Consultant

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    I would love to take mine off because it looks like I am looking through a fishbowl at the screen. But, I also don't want to mess up the screen so I guess it stays.
     
  3. Toughbook

    Toughbook Drop and Give Me 20!

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    If you peel it off slowly at one angle you'll be okay... I switched angles... That's what did it...
     
  4. canuckcam

    canuckcam Notebook Evangelist

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    Use a piece of scotch tape... right on the corner. Lift up slowly, and a corner should come off. At least I've used that with every single screen protector except I've never removed the Panasonic one.

    If scotch tape doesn't work, try masking tape.
     
  5. Doobi

    Doobi ToughBook DeityInTraining

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    TB, this could be a rumor, but I have heard that you MAY be able to fix that corner by using a hair dryer (to warm it up) and then gently rubbing with a screen cloth. Don't quote me on that, though my brain tends to remember weird stuff like that.
     
  6. capt.dogfish

    capt.dogfish The Curmudgeon

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    Paul,
    Interestingly enough, when I first read Rick's post I was wondering if a hair dryer might have prevented the problem(he speculated that it might have been too cold). Are there layers in the touch screen which might separate if the screen protector is adhered too well? That might explain why your fix works if indeed it does. I do know that vinyl adhesive removes easiest with heat.
    CAP
     
  7. Toyo

    Toyo Notebook Deity

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    That's what you get for having those rich boy touchscreens :D :D :D

    I would make sure it is nice and warm, thats your best bet, and go slow.
     
  8. canuckcam

    canuckcam Notebook Evangelist

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    so essentially you're melting the screen protector? eeee.... that might fix your scratch problem, but might not fix your removal problem!

    might as well use a heat gun while you're at it.
     
  9. Doobi

    Doobi ToughBook DeityInTraining

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    From my understanding, a hair dryer will not get hot enough to melt it. But, he was referring to the problem of "after removing" the screen protector. It appears the touchscreen has separated from the LCD enough to cause a holographic color array at certain angles. I don't declare it a solution, but I recall hearing that running a hair dryer on that spot, while gently rubbing with a screen cloth could in fact "reseat" the two together.
     
  10. capt.dogfish

    capt.dogfish The Curmudgeon

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    Canuckcam,
    I'm suggesting a little judicious gentle application of warm air to help the adhesive which is holding the screen protector to the touch screen release its grip on the screen. I suspect that the failure of the adhesive to release caused some delamination of the touch screen layers in which the wires are embedded. Rick mentioned that the screen was pretty cold when he took the protector off.
    CAP
     
  11. Toughbook

    Toughbook Drop and Give Me 20!

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    Well.. It was cool... But not cold. 67 degrees to be exact...

    It's funny... I haven't kept up with this thread in a few days... And before I even read this thread... I tried using a heat gun on low... No dice. Cap is right... It is a slight delamination that is not a heat/cold issue. Like I said... You can only see it lightly from one angle... From the side. Straight on and you'd never know it.