Here you can see a gallery of “transparent screens”. Got a digital camera and too much time? Make the wallpaper on your workstation or laptop a photo of the scene behind your machine in your workspace for a transparent monitor effect. I might try it if I get some time and the facility, just to see what the psychological effect is like. I spend a lot of time on my computer at work.

I’ll post a screenshot if I do it.

The best ones in the gallery seem to be laptops. When the lighting effects of the photos and the real world ambient don’t match up the effect is greatly reduced. This one above is one of the best I feel.