Dust (?) behind lcd

Hi all,
I recently took a trip with my 23" (plastic bevel) CD and transported it with the screen face down. When I got to my destination, I noticed the lower right portion of the screen contains around 30 dots that appear to be at different depths behind the pixels. Some of them look like dead pixels, but they move when viewed from different angles. I'm guessing that dirt and dust got shifted around and somehow ended up there. Anyone else ever encounted this? Any way to clean it?
thanks!
Alan
Dual 2.5 / 23" Cinema Display Mac OS X (10.4.4)

This should definitely be covered under your warranty. That would drive me nuts. Just give Apple a call and explain the situation. If it is what you think it is (dust behind the display), it was clearly caused by the service that was performed on it. It's not like a cracked display or something like that where they can say you mistreated it. Apple warrants their repairs for 90 days. In general, if you notice a problem after having service, you should bring it to their attention immediately... but... in this case, I think you should be okay.

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Hello… I am a little bit embarassed. I haver a very nice and perfect MBP 15,4" Glossy…
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Yesterday I realized that the new display has issues too… It seems like real dust particles are now placed behind the LCD screen. I am not working in dusty environments or something like that.
Is is that Apple Screens aren't sealed anymore that way they were before. I used to use a powerbook 17" for 2 years… in the same way and in the same enviroments… and never had any issue with that. What could be the cause for that? Cheaper production? Lacking QA?
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I've had dust buildup on the bottom of my screen since May of this year but it never really bothered me enough to do anything about it. Then in September I went to the Apple Store and just asked one of the Geniuses there (without my computer) what might be causing it and what I should do. His response was "oh just get a can of compressed air and blow it out." Which I finally did yesterday, and now all the dust (and hair) that was at the bottom of my screen is now all across the middle of my screen.
So I went to the Apple Store (different one) today and asked what could be done, they said they'd replace it but it would cost $300 because I didn't have Apple Care. Then I was told that I couldn't purchase it because my computer was 14 months old.
Now normally I'm fine with paying for problematic things, but the fact that I wouldn't have had as major a problem if I DIDN'T listen to the 1st Genius' advice. And then if Apple actually made it a point of saying that "Applecare cannot be purchased after 1 year" (the only mention is buried in the FAQ, not even the warranty PDF). Or even if they would accept the fact that the screen is moderately defective for allowing the dust to get in in the first place.
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Hp envy all in one 23-C159
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Hello @estheravenue,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that there is dust behind the screen of your HP ENVY 23-c159 All-in-One Desktop PC and you are wondering how to clean it. As far as I know you would have to dismantle the entire computer to do this.
Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

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Call around to an AASP and ask for an estimate - AASP's Outside of the USA
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My Imac have Dust inside Lcd. How i fix it.
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thx.

Find the correct model & look at the instructions at iFixit.com
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Since I bought My laptop 11 months ago dust has been gradually gathering behind the screen underneath the webcam. Initially this was only noticable while the screen was off (black) so it did not bother me.  . Recently a couple of pieces of white 'debris' appeared there, one of which is 2mm wide and really impairs use of the laptop. It is big enough to obscure part of a character on the screen.
At this point I decided to contact HP to request it be fixed under warrenty. As I have seen from others on this site HP claim this is not covered under warrenty.   I am amazed. I can't believe HP will not fix this. They told me this was 'due to negligence'. I only use the laptop at home in the evenings and keep it in a case while not being used. It has neve been out of the house. It has not been dropped, wet, used in a dusty environment in the wind (all suggestions from HP's Tech Support. The only way to have stopped this happening would have been to not use it! I do not understand how dirt can get into a sealed unit.
This has to be a manufacturing fault. Furthermore after reading around I find more people with the exact same issue. Some people have tried to clean this themselves, but have found the screen to be glued in.
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This is extremely poor service. I paid £800 for this laptop and fully expected an obvious manufacturing fault to be rectified.

I fixed it myself!
First I had some more discusstion with Comet where I bought the laptop.   They initially said they would look at it for £50 and charge me for any parts that were needed, but it was unlikely there would be any. I pondered this for a while because I was under the impression the screen was glued in.  When I asked them about this they said they would replace the whole screen anyway and stated 'it would cost more than the laptop is worth'
pathetic.
Rather than spend the money I decided to go it alone as I could not happily use the laptop as it was. I dismantled it myself. I removed the screen unit, dismantled the bezel and removed inverter, wireless antenna and webcam. Yes the screen is glued in and yes it is a nightmare to remove. The clear plastic cover on the screen is glued to both the bezel and the lcd paneI. I cracked the bezel slightly getting it off, but once back together you can hardly see this.  I cleaned the screen before putting it together again and decided rather than glue the panel back in I would like to have the option of taking it apart again to clean it if I need to. Once reassembled I used invisible tape to fix the clear plastic cover back over the lcd. It is hardly noticable and I can remove it anytime I like without dismantling the laptop again. My laptop is useable again with paying HP any more money!
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none.
If you have one of these laptops without this problem, then I recommend you cover the gap between the edge of the screen above the webcam and the bezel with a piece of tape so nothing can get in.
If you are thinking about buying a new HP laptop.....Don't

Early 2011 MBP 17' - Dust behind glass

Hey all,
I am normally OCD when keeping my electronics clean, and my MBP is no exception. That's why this is driving me NUTS! I was using my MBP to study at the library as per usual, and when I come home and turn it on, theres a splotch of dust or something that is behind the glass on the screen. It isn't directly on the LCD, as I can tell there is a degree of layering. It is on the opposite side of the glass, and is a total eye sore to look at.... I have no idea how this happened. Any chance Apple will help me on this? Or is there a DIY option that isn't too intrusive?

Do a SMC reset:
http://support.apple.com/kb/ht3964
Run an Apple Hardware Test:
http://support.apple.com/kb/ht1509
You may need to use OPTION D to start it.
Install iStat pro and open Activity Monitor. Set Activity Monitor to show 'All Processes' and '%CPU' to display values from high to low. Post images of the two such as these:
Ciao.

Dust (?) behind lcd

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