CAPACITIVE SENSING USING A SEGMENTED COMMON VOLTAGE ELECTRODE OF A DISPLAY
First Claim
1. An integrated display and touch sensor device comprising:
- a plurality of common voltage electrode segments;
a plurality of display pixels configured for displaying information on said display;
a plurality of receiver sensor electrodes; and
a processing system communicatively coupled with said plurality of common voltage electrode segments and with said plurality of receiver sensor electrodes, wherein said processing system is configured for;
driving a voltage transition onto a common voltage electrode segment of said plurality of common voltage electrode segments, wherein said voltage transition provides a common voltage for refreshing at least one display pixel of said plurality of display pixels, and wherein said voltage transition generates a first electrical signal on at least one receiver sensor electrode of said plurality of receiver sensor electrodes; and
acquiring a first measurement of a capacitive coupling between said common voltage electrode segment and said at least one receiver sensor electrode by measuring said first electrical signal.
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Accused Products
Abstract
An integrated display and touch sensor device comprises a plurality of display pixels and a processing system communicatively coupled with a plurality of common voltage electrode segments and with a plurality of receiver sensor electrodes. The plurality of display pixels is configured for displaying information on the display. The processing system is configured for driving a voltage transition onto a common voltage electrode segment of the plurality of common voltage electrode segments. The voltage transition provides a common voltage for refreshing at least one display pixel of the plurality of display pixels, and generates a first electrical signal on at least one receiver sensor electrode of the plurality of receiver sensor electrodes. The processing system is also configured for acquiring a first measurement of a capacitive coupling between the driven common voltage electrode segment and the at least one receiver sensor electrode by measuring the first electrical signal.
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Citations
25 Claims
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1. An integrated display and touch sensor device comprising:
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a plurality of common voltage electrode segments; a plurality of display pixels configured for displaying information on said display; a plurality of receiver sensor electrodes; and a processing system communicatively coupled with said plurality of common voltage electrode segments and with said plurality of receiver sensor electrodes, wherein said processing system is configured for; driving a voltage transition onto a common voltage electrode segment of said plurality of common voltage electrode segments, wherein said voltage transition provides a common voltage for refreshing at least one display pixel of said plurality of display pixels, and wherein said voltage transition generates a first electrical signal on at least one receiver sensor electrode of said plurality of receiver sensor electrodes; and acquiring a first measurement of a capacitive coupling between said common voltage electrode segment and said at least one receiver sensor electrode by measuring said first electrical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device comprising:
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a plurality of receiver sensor electrodes; a plurality of common voltage electrode segments disposed as part of a display, wherein a common voltage electrode segment of said plurality of common voltage electrode segments is configured to be driven with a voltage transition that provides a common voltage for refreshing a subset of display pixels of said display and wherein said voltage transition generates a plurality of electrical signals on a plurality of receiver sensor electrodes; and a processing system communicatively coupled with said plurality of receiver sensor electrodes, wherein said processing system is configured for; acquiring a plurality of measurements of a plurality of capacitive couplings between said common voltage electrode segment and said plurality of receiver sensor electrodes by measuring said plurality of electrical signals; and determining positional information related to an input object proximate to said display based on said plurality of measurements. - View Dependent Claims (17, 18, 19, 20)
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21. A method of capacitive sensing in a display, said method comprising:
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driving a voltage transition onto at least one common voltage electrode segment of a plurality of common voltage electrode segments of said display, wherein said voltage transition provides a common voltage for refreshing at least one display pixel of a plurality of display pixels of said display, and wherein said voltage transition generates a first electrical signal on at least one receiver sensor electrode of a plurality of receiver sensor electrodes; acquiring a first measurement of a capacitive coupling between said at least one common voltage electrode segment and said at least one receiver sensor electrode by measuring said first electrical signal; and determining positional information related to an input object proximate to said display based on said first measurement. - View Dependent Claims (22, 23, 24, 25)
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Specification