INPUT DEVICE WITH FORCE SENSING

摘要

Devices and methods are provided that facilitate improved input device performance. The devices and methods utilize a first substrate with proximity sensor electrodes and at least a first force sensor electrode disposed on the first substrate. A second substrate is physically coupled to the first substrate, where the second substrate comprises a spring feature and an electrode component. The electrode component at least partially overlaps the first force sensor electrode to define a variable capacitance between the first force sensor electrode and the electrode component. The spring feature is configured to facilitate deflection of the electrode component relative to the first force sensor electrode to change the variable capacitance. A measure of the variable capacitance may be calculated and used to determine force information regarding the force biasing the input device.

主权项

1. An input device comprising:
a first substrate; proximity sensor electrodes disposed on a first surface of the first substrate, 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 proximity sensor electrodes; and a second substrate physically coupled to the first substrate, the second substrate comprising attachment features, a spring feature and an electrode component, wherein the electrode component at least partially overlaps the plurality of force sensor electrodes to define a variable capacitance between at least one force sensor electrode and the electrode component, and wherein, in response to force applied by an input object positioned over the proximity sensor electrodes, the attachment features are configured to facilitate deflection of the electrode component relative to the at least one force sensor electrode to change the variable capacitance.