Patent ID: 6972889
Filing Date: 2005-12-06
Classification: G02B,G09G

Abstract:
1. An optical display device driven by electrostatic forces, said device having a viewing side from which the display is to be viewed, comprising: an optically transparent substrate and a movable opaque optical shutter arranged in that order with the substrate being disposed closest to said viewing side; an optically transparent fixed electrode disposed on the substrate; a pigmented translucent film disposed on the substrate facing toward the viewing side; said moveable opaque optical shutter opposite to the fixed electrode and the pigmented translucent film, the moveable shutter comprising an electrode element and a biasing element, wherein the moveable optical shutter includes a fixed portion attached to the substrate and a distal portion adjacent the fixed portion, the distal portion being moveable with respect to the fixed electrode; and a dielectric element disposed between the fixed electrode and the optical shutter electrode element, wherein a voltage differential established between the fixed electrode and the optical shutter electrode moves the optical shutter relative to the fixed electrode to thereby controllably regulate the amount of an optical signal propagating through the pigmented translucent film.