| 摘要 |
In one embodiment, a touch sensor includes a panel, a plurality of sense electrodes underlying the panel, a plane of known potential underlying the plurality of sense electrodes, and a controller communicatively coupled to the plurality of sense electrodes. The controller is configured to determine whether an object has pressed the panel by: measuring capacitances at each of a plurality of sense electrodes across the panel, the capacitances associated with a distance between the plurality of sense electrodes and the plane of known potential, comparing the measured capacitances across the panel with one or more criteria associated with a deformation of the panel, and determining, based on the comparison, whether an object has pressed the panel. |
