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LCD pressure marks - what they are and how to fix
I have an LCD with several small pressure marks about the size of the eraser end of a pencil.
Can anyone explain what exactly happens when a pressure mark is created?
Is the mark dirt or a scratch on the inside or outside of the screen?
Is it damage to the actual pixels?
Are they caused by touching the screen? If so, why?
Is it possible to fix the screen by eliminating or reducing the pressure mark?
Cleaning the screen with isopropyl alcohol has removed various other black marks due to contact with the keyboard but these pressure marks remain.
Any advise or comments about LCD screen construction, how this relates to pressure marks and if it is possible to fix would be appreciated.
Does anyone know a website which gives such information?