Privacy filter for a display device
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United States of America Patent
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-
Jun 18, 1996
Issued Date -
N/A
app pub date -
Nov 8, 1994
filing date -
Oct 13, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A privacy filter (20) for a display device includes at least two spaced-apart, generally parallel grids (22 and 24). Each grid includes an array of strips (26 and 30) or blocking members having transparent space (28 and 32) therebetween. The strips or blocking members are formed aligned such that an image (37) displayed on the display device may be viewed through the filter at an angle of incidence within a predetermined range of angles but is not discernable at angles outside of the predetermined range.
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Family
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Cited Art Landscape
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