Computer monitor privacy

Problem: Others approach you while reading medical, salary, work history or other such personal or private data on your computer screen.

Solution: Special glasses, or "flip-down" lenses mounted on regular reading glasses. The glasses might be polarized and/or be able to view data displayed in a frequency higher or lower than the human eye can see. Or, the data could be displayed in camoflauge pattern of pixels that the normal human eye could not see (A variation of the color blindness test images).

It may be possible to produce a variety of glasses, each pair being able to only view a certain pattern of pixels or frequencies, so that one could only view only their screen, with a display matched to the glasses used at that station, in an office full of others using the same technology.

Thank you

Dec. 3, 2005 update: I came across this website today (see link below). The 3M product is described as "3M's microlouver privacy technology which works like tiny vertical blinds to narrow the viewing angle so that only persons directly in front of the monitor are able to see on-screen data; darkens screen data when viewed from the side."

The privacy screen only blocks out unwanted viewers who see the the computer from indirect angles. I am still hoping for a filter that will block out unwanted viewers from all angles.