Patent ID: 8164821
Filing Date: 2012-04-24
Classification: B81B,G02B,Y10T

Abstract:
1. A device comprising: an electrode; a fixed reflector which is at least partially reflective; a movable flexible layer; a movable reflector which is at least partially reflective, the movable reflector coupled to the movable flexible layer, wherein an interferometric modulating cavity is defined by the movable reflector and the fixed reflector, the movable reflector being movable between at least a first position and a second position; and a thermal expansion balancing layer on a side of the movable flexible layer opposite the movable reflector, wherein the thermal expansion balancing layer has a coefficient of thermal expansion greater than or equal to that of the movable flexible layer if a coefficient of thermal expansion of the movable reflector is greater than that of the movable flexible layer, or a coefficient of thermal expansion less than or equal to that of the movable flexible layer if the coefficient of thermal expansion of the movable reflector is less than that of the movable flexible layer.