Half of the monitor got darker [Photo Included]

The imac was working fine until 2hrs ago.
The half of the monitor, which is upper part is darker and it fades and gets clearer on the bottom.
Anyone know what the problem is?
Message was edited by: KorPride
Message was edited by: KorPride

Same here!
A few seconds after my iMac came out of sleep the top half of the monitor went dim. I'll post again once I hear from Apple.

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