Awesome solution to computer screen privacy

Be using this
On funstubstance
Start laughing uncontrollably about a seemingly blank white screen
Get sent to an asylum

How the do you do this?

Did he take of the actual screen that sits on the surface of the image ? I feel like he took that off and then he cut it out and applied it to the glasses ... But then the screen will have no sort of protection from the top layer that was taken off ... I don't know

This will help me watching my favorite show. 'If you know what I mean'

http://www.instructables.com/id/Privacy-monitor-made-from-an-old-LCD-Monitor/