DEVICE AND METHOD FOR RESISTIVE FORCE SENSING AND PROXIMITY SENSING
First Claim
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1. An input device for an electronic system, comprising:
- a pliable component having;
an input surface;
a first plurality of sensor electrodes configured to sense input objects in a sensing region of the input device;
a support substrate including at least one second sensor electrode spaced apart from the pliable component; and
a patterned force sensitive resistance (FSR) layer disposed between the first plurality of sensor electrodes and the at least one second sensor electrode.
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Abstract
Methods, systems and devices are described for operating input device for an electronic system including a pliable component having an input surface and a first plurality of sensor electrodes configured to sense input objects in a sensing region of the input device. The input device also includes a support substrate including at least one second sensor electrode spaced apart from the pliable component, and a patterned force sensitive resistance (FSR) layer disposed between the first plurality of sensor electrodes and the at least one second sensor electrode.
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Citations
20 Claims
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1. An input device for an electronic system, comprising:
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a pliable component having; an input surface; a first plurality of sensor electrodes configured to sense input objects in a sensing region of the input device; a support substrate including at least one second sensor electrode spaced apart from the pliable component; and a patterned force sensitive resistance (FSR) layer disposed between the first plurality of sensor electrodes and the at least one second sensor electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An input device comprising:
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a pliable component including a first plurality of sensor electrodes configured to detect input objects in a sensing region of the input device, the first plurality of sensor electrodes including a first subset of transmitter electrodes; a second plurality of sensor electrodes configured to detect a force imparted to an input surface of the input device and configured for resistive coupling with the first subset of transmitter electrodes; and a patterned force sensitive resistance (FSR) layer disposed between the pliable component and the second plurality of sensor electrodes; wherein the resistive coupling between the transmitter electrodes and the second plurality of sensor electrodes varies in response to the applied force. - View Dependent Claims (17, 18, 19)
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20. An input device comprising:
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a first plurality of sensor electrodes disposed in a pliable component and configured to detect input objects in a sensing region of the input device; a second plurality of sensor electrodes disposed in a second layer and configured to detect a force imparted to an input surface of the input device; a patterned force sensitive resistance (FSR) layer disposed between the pliable component and the second plurality of sensor electrodes and configured to change total resistivity in response to force applied to the input surface such that a resistive coupling between the first and second pluralities of sensor electrodes varies in response to the applied force; and a processing system communicatively coupled to the first and second pluralities of sensor electrodes and configured to; drive a sensing signal onto a first subset of the first plurality of sensor electrodes; receive a first resulting signal, including effects of an input object in the sensing region, from a second subset of the first plurality of sensor electrodes; receive a second resulting signal, including effects of a force imparted on the input surface, from the second plurality of sensor electrodes; and determine positional and force information for input objects in the sensing region based on the first and second resulting signals.
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Specification