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Ask an Expert Forum Trying to clean an old Samsung LCD display affected by cleaning foam
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Trying to clean an old Samsung LCD display affected by cleaning foam

madthescientist
madthescientist over 1 year ago

I have an old LCD Samsung PC display, which i had swap the power supply in the past.

In my home country, Argentina, there is a sprayable cleaning foam wich uses to be used to clean electronic devices from the outside.

However, it did leak into the LCD glass and it seems to cause spots and some artifacts in the screen, after testing the foam with a multimeter, i had learnt it's conductive.

I do have idea of taking the display apart, then taking the lcd panel apart and wash every part with deionized water. However, i never tried this procedure, in consequence i would like to ask if attemping this practice would help me save this display or if i may fully destroy it beyond repair.

Should this be safe to do i would like to have all the advise you could give me about it.

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  • DAB
    0 DAB over 1 year ago

    If you have a lot of time and are very careful, you might succeed in cleaning the LCD.

    I would use alcohol of acetone to clean instead of water.

    Water is an aggressive solvent.

    I have taken LCD screens apart, but I have never tried to put one back together, so I have no idea what kind of alignment issues you might run into.

    There is a reason why they are considered throw away items.

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  • mp2100
    0 mp2100 over 1 year ago in reply to DAB

    I would say water is safer to use than alcohol and and much safer than acetone. The lcd is plastic based and acetone would damage it. 

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  • acdc90
    0 acdc90 over 1 year ago in reply to mp2100

    can you make the monitor show a single color and take a photo of it.

    if the liquid had shorted connecting pins on the screen you would get lines not spots 

    i would agree acetone has its place but not there. i would use isopropyl alcohol.

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  • bidrohini
    0 bidrohini over 1 year ago

    LCD panels and their polarizers can be sensitive to water, especially if not fully dried. However, deionized (or distilled) water is much safer since it lacks impurities that can cause short circuits or leave residue.

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