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Micro-electromechanical based bistable color display sheets

  • US 6,201,633 B1
  • Filed: 06/07/1999
  • Issued: 03/13/2001
  • Est. Priority Date: 06/07/1999
  • Status: Expired due to Term
First Claim
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1. A micro-electromechanical shutter assembly comprising:

  • a transparent face plate layer provided to protect the shutter assembly from environmental effects;

    a first conductive layer located below the transparent face plate, patterned with vertical sidewalls which define a cavity;

    a second conductive layer located below the first conductive layer patterned in the shape of a shutter including shutter segments suspended by springs, the shutter formed near the bottom of the cavity;

    a spacer layer located below the second conductive layer;

    an electrically insulating bottom layer located below the spacer layer, whereby the spacer layer defines a gap between the second conductive layer and the bottom layer;

    a third conductive layer located on the electrically insulating bottom layer;

    an electrical terminal which provides a selectively actuated bias voltage to the sidewalls;

    first address signal lines in operative connection with the shutter assembly, to provide selectively actuated first address signals to the shutter assembly; and

    second address signal lines in operative connection with the third conductive layer to provide selective actuated second address signals to the third conductive layer.

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