Input device with floating electrodes having at least one aperture
First Claim
1. An input device for capacitively sensing an input object in a sensing region, comprising:
- a transmitter sensor electrode;
a receiver sensor electrode; and
a floating electrode, the floating electrode configured to be electrically floating during operation, wherein a first portion of the floating electrode overlaps a portion of the transmitter sensor electrode and a second portion of the floating electrode overlaps a portion of the receiver sensor electrode, wherein the floating electrode comprises at least one aperture within the first portion of the floating electrode at least in part overlapping the transmitter sensor electrode, and wherein the at least one aperture overlaps the transmitter sensor electrode by a first area, the at least one aperture overlaps the receiver sensor electrode by a second area, and the first area is greater than the second area.
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Accused Products
Abstract
Devices and methods are provided that facilitate improved input device performance. The devices and methods utilize a transmitter sensor electrode and a receiver sensor electrode that are capacitively coupled to form a transcapacitance for capacitively sensing input objects in a sensing region. A measure of the transcapacitance may be used to determine positional information for the input objects in the sensing region. In accordance with the various embodiments, the devices and methods include a floating electrode that is ohmically insulated from other electrical elements during operation. A first portion of the floating electrode overlaps a portion of the transmitter sensor electrode and a second portion of the floating electrode overlaps a portion of the receiver sensor electrode. The floating electrode additionally includes at least one aperture within the first portion of the floating electrode, where the at least one aperture at least in part overlaps the transmitter sensor electrode.
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Citations
20 Claims
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1. An input device for capacitively sensing an input object in a sensing region, comprising:
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a transmitter sensor electrode; a receiver sensor electrode; and a floating electrode, the floating electrode configured to be electrically floating during operation, wherein a first portion of the floating electrode overlaps a portion of the transmitter sensor electrode and a second portion of the floating electrode overlaps a portion of the receiver sensor electrode, wherein the floating electrode comprises at least one aperture within the first portion of the floating electrode at least in part overlapping the transmitter sensor electrode, and wherein the at least one aperture overlaps the transmitter sensor electrode by a first area, the at least one aperture overlaps the receiver sensor electrode by a second area, and the first area is greater than the second area. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An input device for capacitively sensing an input object in a sensing region, comprising:
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a transmitter sensor electrode; a receiver sensor electrode; and a floating electrode, the floating electrode configured to be electrically floating during operation, wherein a first portion of the floating electrode overlaps a portion of the transmitter sensor electrode and a second portion of the floating electrode overlaps a portion of the receiver sensor electrode, and wherein the floating electrode comprises a first aperture within the first portion of the floating electrode and at least in part overlapping the transmitter sensor electrode; where the transmitter sensor electrode comprises a jumper, wherein the jumper and the floating electrode are disposed on a same layer, and wherein the jumper crosses over the receiver sensor electrode and is electrically insulated from the receiver sensor electrode.
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8. An input device for capacitively sensing input objects in a sensing region, comprising:
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a set of transmitter sensor electrodes; a set of receiver sensor electrodes; and a set of floating electrodes, each floating electrode of the set of floating electrodes configured to be electrically floating in operation, wherein a first portion of a first floating electrode of the set of floating electrodes overlaps a first portion of a first transmitter sensor electrode of the set of transmitter sensor electrode and a second portion of the first floating electrode of the set of floating electrodes overlaps a first portion of a first receiver sensor electrode of the set of receiver sensor electrodes, the first floating electrode of the set of floating electrodes comprising at least one aperture within the first portion of the first floating electrode and at least in part overlapping the first transmitter sensor electrode, wherein the at least one aperture overlaps the first transmitter sensor electrode by a first area, the at least one aperture overlaps a first receiver sensor electrode by a second area, and the first area is greater than the second area. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An input device for capacitively sensing input objects in a sensing region, comprising:
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a set of transmitter sensor electrodes; a set of receiver sensor electrodes; and a set of floating electrodes, each floating electrode of the set of floating electrodes configured to be electrically floating in operation, wherein a first portion of a first floating electrode of the set of floating electrodes overlaps a first portion of a first transmitter sensor electrode of the set of transmitter sensor electrode and a second portion of the first floating electrode of the set of floating electrodes overlaps a first portion of a first receiver sensor electrode of the set of receiver sensor electrodes, the first floating electrode of the set of floating electrodes comprising at least one aperture within the first portion of the first floating electrode and at least in part overlapping the first transmitter sensor electrode; wherein the first transmitter sensor electrode of the set of transmitter sensor electrodes comprises at least one jumper, wherein the at least one jumper and the set of floating electrodes are disposed on the same layer and wherein the at least one jumper crosses over at least one of the set of receiver sensor electrodes. - View Dependent Claims (15, 16)
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17. A method for forming an input device for capacitively sensing an input object in a sensing region, comprising:
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forming a transmitter sensor electrode; forming a receiver sensor electrode; and forming a floating electrode, the floating electrode configured to be electrically floating during operation, wherein a first portion of the floating electrode overlaps a portion of the transmitter sensor electrode and a second portion of the floating electrode overlaps at least a portion of the receiver sensor electrode, and wherein the floating electrode comprises at least one aperture within the first portion of the floating electrode and at least in part overlapping the transmitter sensor electrode, wherein the at least one aperture overlaps the transmitter sensor electrode by a first area, the at least one aperture overlaps the receiver sensor electrode by a second area, and the first area is greater than the second area. - View Dependent Claims (18, 19, 20)
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Specification