Patent ID: 9024925
Filing Date: 2015-05-05
Classification: G02B,G09G

Abstract:
1. An interferometric modulator (IMOD), comprising: a substrate; an absorber stack disposed on the substrate; a movable reflector stack including a metal mirror and a dielectric stack, the dielectric stack being disposed between the absorber stack and the metal mirror, the dielectric stack being configured to reduce a standing wave node separation for light reflecting from the movable reflector stack, as compared to light reflecting from the movable reflector stack in the absence of the dielectric stack, such that the IMOD is configured for reflecting a white color when the reflector stack is in close proximity to the absorber stack, the movable reflector stack being further configured to be moved between a plurality of positions relative to the absorber stack, each of the positions corresponding with an IMOD color state including a white state for reflecting the white color, a black state, and one or more other colored states; and a first protrusion connected to the movable reflector stack or to the absorber stack,