Method and apparatus of private display device
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United States of America Patent
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Feb 21, 2017
Issued Date -
N/A
app pub date -
Oct 6, 2015
filing date -
Oct 6, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
There is provided a system and method for providing privacy viewing of an output from a electronic display, including a first polarizer configured to polarize a display signal at a first polarization angle; a second polarizer configured to polarize a noise signal at a second polarization angle orthogonal to the first polarization angle; a combiner configured to combine the polarized display signal and the polarized noise signal, and a third polarizer configured to receive the output of the electronic display and polarize the combined polarized display and noise signal at the first polarization angle. The system includes first and second polarization rotators configured to rotate the first and second polarization angles of the combined polarized display and noise signals prior to being output by the electronic display and prior to being received by the third polarizer.
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