Interferometric modulator with dual absorbing layers
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United States of America Patent
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Mar 31, 2015
Grant Date -
May 30, 2013
app pub date -
Nov 29, 2011
filing date -
Nov 29, 2011
priority date (Note) -
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Abstract
This disclosure provides systems, methods and apparatus related to an electromechanical display device. In one aspect, an analog interferometric modulator includes a reflective display pixel having a reflector, and a movable first absorbing layer positionable at a distance d1 from the reflector, the first absorbing layer and the reflector defining a first gap therebetween. The apparatus also includes a second absorbing layer disposed at a distance d2 from the first absorbing layer, the first absorbing layer disposed between the second absorbing layer and the reflector, the second absorbing layer and the first absorbing layer defining a second gap therebetween. In addition, at least two of the reflector, the first absorbing layer and second absorbing layer are movable to synchronously either increase or decrease the thickness dimension of the first gap and the second gap.
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