ELECTRONIC DEVICE AND METHOD OF CONTROLLING A TOUCH-SENSITIVE DISPLAY
A device includes a substrate having a first side and second side, a first set of touch-sensing electrodes disposed on the first side of the substrate, a force-sensing electrode disposed on the second side of the substrate, and a display including a ground shield. A change in capacitance between the force sensing electrode and the ground shield is utilized to determine a value related to a force imparted on the device.
1 . A device comprising:
a substrate having a first side and a second side;
a first set of touch-sensing electrodes disposed on the first side of the substrate;
a force-sensing electrode disposed on the second side of the substrate;
a display including a ground shield,
wherein a change in capacitance between the force sensing electrode and the ground shield is utilized to determine a value related to a force imparted on the device.
2 . The device according to claim 1 , wherein the ground shield is spaced from the force-sensing electrode.
3 . The device according to claim 1 , comprising a plurality of force-sensing electrodes disposed on the second side of the substrate.
4 . The device according to claim 1 , comprising a cover and a second set of touch-sensing electrodes disposed on a side of the cover, wherein the first set of touch-sensing electrodes and the second set of touch-sensing electrodes are utilized to determine a location of a touch on the cover.
5 . The device according to claim 1 , comprising a cover and a second set of touch-sensing electrodes disposed on a side of the cover and separated from the first set of touch-sensing electrodes.
6 . The device according to claim 5 , wherein the second set of touch-sensing electrodes are separated from the first set of touch-sensing electrodes by a dielectric adhesive.
7 . The device according to claim 1 , wherein a change in capacitance between the force sensing electrode and the ground shield is utilized to determine a value related to a force causing bending of the substrate.
8 . The device according to claim 1 , comprising a cover disposed on the substrate, wherein a change in capacitance between the force sensing electrode and the ground shield is utilized to determine a value related to a force causing bending of the cover and the substrate.
9 . The device according to claim 1 , wherein the substrate is supported at sides thereof to inhibit movement of the sides toward the display when a force is imparted on the device.
10 . The device according to claim 1 , wherein the touch-sensing electrodes are electrodes of a capacitive touch sensor.