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What's this smudges on my LCD?

Hey guys,

What's this smudges on my screen? When my cinema display is cold, they don't appear, but when it gets hot (very hot), they get more and more stronger.

http://lucasveiga.com/media/IMG_1992-PV6...

I've seen some topics which the people say this can be some clouding, but I'm afraid this isn't that.

Thanks

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do they look like there on the display (e.g, are they pixelated?) or on the glass, because i have a very similar display, and i can't explain how smudgy it is.

Tj & Ja さんによる2017年3月29日

I already removed the glass and the smudges are on LCD. :/

Lucas Veiga さんによる2017年3月29日

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投稿日: 2017年3月29日

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There is a few causes of this:

Even though LCD's don't have the same issue of burn-in as older CRT's you still can get it! If you have a desktop image which is static with large dark & light sections you can get this effect.
If someone was servicing your system and pressed on the back of the LCD they could disrupt the liquid causing a dark splotch or line if the object was sharp.
Some displays glass plates did not get properly washed during the manufacturing process. This was a big problem for Apple with the 2011 21.5 & 27" iMac screens, some where also off color.

In this case I suspect it was your background image that burn't in.

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In one of these causes, what's the proper fix?

Lucas Veiga さんによる2017年3月29日

In all the cases I listed it requires a replacement screen ;-{

Dan さんによる2017年3月29日

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Apple LED Cinema Display 27インチ

What's this smudges on my LCD?

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