How to remove liquid spots from LCD screen

while repairing digitizer on this tablet i used alcohol to clean it but somehow some alcohol got in the back-light of the lcd and it is seen as bright white spot and it is very ugly. it cant harm the display since it is only alcohol but i decided to try to evaporate it by applying heat to the part of the screen. see the video how i did it.

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Post time: 11-21-2018