Got any secret documents your working on? Or something you don’t want anyone else to see? Well… here you go… This is really cool and it doesn’t even take that much effort to create….. just maybe a few hours on a lazy Saturday afternoon. It’s called the secret monitor, and by following these simple instructions you can make a computer screen only you can see.
Get an old LCD monitor, polarizing filter, cheap 3D glasses, scissors and prying tools
Remove the front molding
Cut the edges on all four sides to remove the polarizing filter
Trace the glass on the glasses on the filter
Remove and replace with polarizing filter
BOOM! Everyone else will see a white screen, while you’ll be able to see what’s actually on the screen.
Check out this video to see how cool it looks