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CAPACITIVE MEMS-BASED DISPLAY WITH TOUCH POSITION SENSING

  • US 20120154333A1
  • Filed: 02/24/2012
  • Published: 06/21/2012
  • Est. Priority Date: 08/19/2008
  • Status: Abandoned Application
First Claim
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1. A display, comprising:

  • a plurality of display elements, each display element includinga deformable reflective movable layer including a first conductive layer, wherein the first conductive layer is configured to receive drive signals to change the position of the movable layer; and

    a partially reflective and partially transmissive stationary layer including a second conductive layer, the stationary layer spaced from the movable layer by a cavity;

    an array driver configured to drive one or more of the plurality of display elements by applying a voltage to the one or more display elements using the first conductive layer to create an electrostatic field that, for each display element, positions the movable layer relative to the partially reflective and partially transmissive stationary layer, wherein a state of each of the one or more display elements corresponds to a capacitance value, wherein the array driver is coupled to one or more of the conductive layers of the one or more display elements, and wherein the array driver is further configured to use one or more of the conductive layers to sense change in capacitance values of the one or more display elements; and

    a processor configured to determine the proximity of the one or more display elements to an external stimulus using the sensed change in the capacitance values of the one or more display elements.

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