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ELECTROACTIVE POLYMER TRANSDUCERS FOR TACTILE FEEDBACK DEVICES

  • US 20130207793A1
  • Filed: 01/21/2010
  • Published: 08/15/2013
  • Est. Priority Date: 01/21/2009
  • Status: Abandoned Application
First Claim
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1. A user interface device comprising:

  • a chassis;

    a user interface surface;

    a first power supply;

    at least one electroactive polymer transducer adjacent to the user interface surface, the electroactive polymer transducer further comprising an electrically conductive surface;

    where a portion of the user interface surface and the electrically conductive surface form a circuit with the first power supply, such that in a normal state the electrically conductive surface is electrically isolated from the portion of the user interface surface to open the circuit causing the electroactive polymer transducer to remain in an unpowered state; and

    where the user interface surface is flexibly coupled to the chassis such that deflection of the user interface surface into the electroactive polymer transducer closes the circuit to energize the electroactive polymer transducer such that a signal provided to the electroactive polymer transducer produces a haptic sensation at the user interface surface.

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