24 Inch LCD Panel - Fan ?

Hi
Now forgive me for maybe sounding stupid but I thought the 24 Inch LCD panel did not contain any cooling
fans.
Today I noticed a dark blotchyness starting to appear in the bottom left hand area of the screen, I have this very same problem with my iMac which contains fans for obvious reason.
When I place my hand next to the the underside of the panel 5 to 6 inches in from the left hand side I can feel a faint blow of cold air.
Now this to me says that this panel has a fan inside ?
Message was edited by: Washac

just come in and turned it all on, placed my hand where I describe and there is a cold downward blow.....

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