CPC G06F 3/016 (2013.01) [G06F 3/044 (2013.01); G06F 3/04144 (2019.05); G06F 2203/04106 (2013.01)] | 20 Claims |
1. A touch panel device, comprising:
a face plate configured to receive at a first surface a contact with the face plate;
a force-feedback device including:
a printed circuit board (PCB) affixed by a first surface of the PCB to a second surface of the face plate and including a first metallic ring on a second surface of the PCB; and
a piezo disc including a piezoelectric wafer and a second metallic ring, the piezo disc being adjacent to the second surface of the PCB; and
a touch panel circuit coupled to the first metallic ring, the second metallic ring, and the piezoelectric wafer, wherein when a first contact is received at the first surface of the face plate, the PCB moves closer to the piezo disc and in response, the touch panel circuit determines a first capacitance between the first metallic ring and the second metallic ring, determines a first force associated with the first contact based upon the first capacitance, and triggers a first haptic feedback response in the piezoelectric wafer.
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