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Input device with force sensing

  • US 9,671,898 B2
  • Filed: 04/23/2015
  • Issued: 06/06/2017
  • Est. Priority Date: 10/25/2011
  • Status: Expired due to Fees
First Claim
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1. An input device comprising:

  • a first substrate;

    a plurality of proximity sensor electrodes disposed on a first surface of the first substrate, the plurality of the proximity sensor electrodes configured to detect objects in a sensing region of the input device;

    a plurality of force sensor electrodes disposed on a second surface of the first substrate and at least partially overlapping the plurality of the proximity sensor electrodes; and

    a second substrate physically coupled to the first substrate, the second substrate comprising a plurality of attachment features, a spring feature and an electrode component,wherein the electrode component at least partially overlaps the plurality of the force sensor electrodes and defines a variable capacitance between at least one force sensor electrode of the plurality of the force sensor electrodes and the electrode component, andwherein, in response to a force applied by an input object positioned over the plurality of the proximity sensor electrodes, the plurality of the attachment features facilitates deflection of the electrode component relative to the at least one force sensor electrode to change the variable capacitance.

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