Optics: measuring and testing – By light interference – For dimensional measurement
Reexamination Certificate
2007-07-10
2007-07-10
Toatley, Jr., Gregory J. (Department: 2877)
Optics: measuring and testing
By light interference
For dimensional measurement
C356S519000
Reexamination Certificate
active
11214698
ABSTRACT:
A method for calibrating a display device comprises controlling an applied voltage to at least one fabry-perot interferometer pixel through a plurality of switches. The at least one fabry-perot interferometer pixel has a top and a bottom plate defining a gap therebetween wherein the at least one fabry-perot interferometer pixel produces a selected output color in response to the applied voltage. The method further includes controlling a test voltage to the at least one fabry-perot interferometer pixel through the plurality of switches during a calibration sequence to determine a gap capacitance in the at least one fabry-perot interferometer. The gap capacitance represents the relative position of the top plate with respect to the bottom plate.
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Brown Matthew
Martin Eric
Hewlett--Packard Development Company, L.P.
Lyons Michael A
Toatley , Jr. Gregory J.
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