Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2008-03-04
2008-03-04
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S204000
Reexamination Certificate
active
09497021
ABSTRACT:
The invention is directed towards high performance switchable polarizers for optical projection displays. One embodiment of the invention is a switchable polarizer with (1) two conductive electrodes and (2) a liquid crystal material that is positioned between the two conductive electrodes. The electrodes apply a uniform electric field across the liquid crystal material when one of the electrodes is placed at a first potential and other electrode is placed at a second potential different from the first potential. These two electrodes also heat the liquid crystal material when they conduct current. When equal currents are drawn through the electrodes, the electrodes apply a uniform electric field across the liquid crystal during a heating operation.
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Goyins Gregg S.
Lawton Robert J.
Hewlett--Packard Development Company, L.P.
Hjerpe Richard
Nguyen Kevin M
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