Patent ID: 9372338
Filing Date: 2016-06-21
CPC Classification: B81B,B81C,G02B

Claim Text:
1. An interferometric modulator comprising: a substrate; an optical stack supported by the substrate, wherein the optical stack is partially reflective and partially transmissive; a movable reflector over the optical stack, the movable reflector including a front side facing the optical stack and a back side opposite the front side, the optical stack and the movable reflector defining an optical cavity therebetween; a deformable element coupled to the back side of the movable reflector, wherein the deformable element is operable for providing a restoring force to bias the movable reflector to a first position; and a restoring force modifier between the movable reflector and the deformable element, the interferometric modulator configured such that the restoring force modifier increases the restoring force of the deformable element when the deformable element is in contact with the restoring force modifier, wherein the movable reflector is between the restoring force modifier and the optical stack.