How To: Hack an Old LCD Monitor into a Secret Computer Screen That Only You Can See

Hack an Old LCD Monitor into a Secret Computer Screen That Only You Can See

No matter your reason, if you want to hide what's on your computer screen from prying eyes, there are plenty of ways to do it. You can get a privacy filter, install a panic button for your browser, or just develop super fast reflexes. But all it takes is the right angle or a too-slow reaction to blow your cover.

Want a foolproof way to make sure you are the only one who can see what's on your screen? Brusspup has just the fix for you.

He built an "Amazing Secret Monitor" by stripping the polarized layer off an old LCD screen and adding a layer to a pair of glasses. This way, what's on the monitor can only be seen by the person wearing the polarized glasses.

It's pretty easy to do and only requires basic tools like scissors and an X-Acto knife. You can order the polarized filter online and just use an old LCD monitor you have lying around.

If you don't have one you never use, your best bet is to grab one from the thrift store (if it's not clear yet, you'll be destroying the monitor).

The entire process shouldn't take more than 30 minutes. Take a look at the video to see how it's done.

You can find more details in the YouTube description, and be sure to check out some of brusspup's other work for Rubik's Cube illusions, shampoo tricks, zigzagging streams of water, and more.

7 Comments

Are there any monitor quality issues with this hack?

You should make sure to align the new polarizing filter correctly before you cut it out and put it in the glasses frames, or you may be stuck only seeing it correctly with the glasses upside down or your head tilted to one side. To figure out which side is up (and which side is front), just hold the new filter up in front of the monitor and rotate it 90 degrees and if needed flip it backwards and forwards until you can see the image properly.

It's also worth nothing this will only work on older monitors where the polarizing filter can be peeled off (as seen in the video). Most newer monitors bond it to or under the glass.

The monitor in the video looks like an old DELL (with the logo taped over).

Image via vigdeals.ca

Can this be applied to a phone screen??

If it is an hd screen and the thing that u peel off is a polarized filter

This is cool I will try this so my brothers can't tell me what to do when I am playing video games

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