Polarise An Old LCD Monitor For Privacy

Got an old LCD monitor sitting around? With some hands-on hacking, you can make a screen that's only viewable with the right pair of glasses.You can remove the polarised and anti-glare films from the inside of the monitor's glass surface and reassemble it; this will make the screen look bright white to the naked eye. To see the actual display you just use paint thinner to remove the anti-glare element from the polarisation film and cut that to match the frames of an old pair of glasses. This produces a monitor that can only be seen when you're wearing the polarisation filter glasses.

Instructables user dimovi provides step-by-step instructions and photos that describe how to remove the polarisation filter from the display and cut that filter to make lenses for disposable 3D glasses or old sunglasses. I'm curious to know if regular polarised sunglasses would also be able to view the hacked display.

Privacy monitor made from an old LCD Monitor [Instructables via Hack-a-Day]


    Now thats awesome!

    Regular polarised glasses are different in each eye, So it might work in one eye only

    How many other people thought this is the best way to watch porn without your girlfriend knowing?

    Benny, first thing I thought haha

    So, if you walk in on someone and you think they're nuts for looking at a white screen, think again...

    Forget just the old monitor - I started by putting film inside my spare prescription glasses, then peeled my spare mobile phone display. Works a treat!!!!
    Now I'll do my laptop and my computer monitors at home and best of all - my computer monitors at work.
    Thanks to all for a great idea.

      So it works with a phone display ?
      Can you put some pictures please ?
      It looks really interesting for a phone !

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