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公开(公告)号：US10739904B2
公开(公告)日：2020-08-11
申请号：US15998425
申请日：2018-08-15
申请人： Apple Inc.
摘要： A touch sensor panel is disclosed. The touch sensor panel includes a first set of touch electrodes configured to operate as drive lines and that are disposed in a first layer of the touch sensor panel. The touch sensor panel also includes a second set of touch electrodes configured to operate as sense lines and that are disposed in a second layer of the touch sensor panel, different than the first layer of the touch sensor panel, such that one or more mutual capacitance touch nodes are formed by the first set of touch electrodes and the second set of touch electrodes. The touch sensor panel also includes a third set of touch electrodes configured to operate as self-capacitance electrodes and that are disposed in the first layer or the second layer of the touch sensor panel.
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公开(公告)号：US11531438B2
公开(公告)日：2022-12-20
申请号：US17326249
申请日：2021-05-20
申请人： Apple Inc.
发明人： John Stephen Smith , Amit Nayyar , Joseph Kurth Reynolds , Sagar Rajiv Vaze , Marduke Yousefpor
摘要： Touch sensor panels (or touch screens) can improve signal-to-noise ratio (SNR) using touch electrode patterns for differential drive and/or differential sense techniques. In some examples, a touch sensor panel can include a two-dimensional array of touch nodes formed from a plurality of touch electrodes. Each column (or row) of touch nodes can be driven with a plurality of drive signals. For example, a first column (or row) of touch nodes can be driven by a first drive signal applied to one or more first touch nodes in the first column (or row) and a second drive signal applied to a one or more second touch nodes of the first column (or row). In some examples, the first drive signal and the second drive signal can be complimentary drive signals. In some examples, each row (or column) of touch electrodes can be sensed by differential sense circuitry.
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公开(公告)号：US20190056834A1
公开(公告)日：2019-02-21
申请号：US15998425
申请日：2018-08-15
申请人： Apple Inc.
摘要： A touch sensor panel is disclosed. The touch sensor panel includes a first set of touch electrodes configured to operate as drive lines and that are disposed in a first layer of the touch sensor panel. The touch sensor panel also includes a second set of touch electrodes configured to operate as sense lines and that are disposed in a second layer of the touch sensor panel, different than the first layer of the touch sensor panel, such that one or more mutual capacitance touch nodes are formed by the first set of touch electrodes and the second set of touch electrodes. The touch sensor panel also includes a third set of touch electrodes configured to operate as self-capacitance electrodes and that are disposed in the first layer or the second layer of the touch sensor panel.
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公开(公告)号：US11079882B2
公开(公告)日：2021-08-03
申请号：US16551698
申请日：2019-08-26
申请人： Apple Inc.
发明人： Sagar Rajiv Vaze
摘要： A touch sensor panel including a first set of touch electrodes configured to operate as drive electrodes and a second set of touch electrodes configured to operate as sense electrodes. The first set of touch electrodes being disposed within gaps between the second set of touch electrodes, and a given row or column of touch electrodes of the second set of touch electrodes includes a plurality of subsets of touch electrodes that are separately addressable by touch sensing circuitry.
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公开(公告)号：US10534481B2
公开(公告)日：2020-01-14
申请号：US15228942
申请日：2016-08-04
申请人： Apple Inc.
发明人： Massoud Badaye , Sudip Mondal , Sagar Rajiv Vaze , Albert Lin , Qian Zhao , Chun-Hao Tung , Sunggu Kang , John Z. Zhong
摘要： High aspect ratio touch sensor panels are disclosed in which multiple row electrode blocks can be formed in a single row within an active area of the touch sensor panel, each row electrode block including a plurality of vertically adjacent row electrodes, or in some instances only one row electrode. In addition, each column electrode can be separated into multiple column electrode segments, each column electrode segment being vertically oriented and formed in a different column. The column electrode segments associated with any one column electrode can be spread out so that each of these column electrodes segments can be co-located and associated with a different row electrode block.
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公开(公告)号：US11347366B2
公开(公告)日：2022-05-31
申请号：US16989645
申请日：2020-08-10
申请人： Apple Inc.
摘要： A touch sensor panel includes a first set of touch electrodes configured to operate as drive lines and that are disposed in a first layer of the touch sensor panel. The touch sensor panel also includes a second set of touch electrodes configured to operate as sense lines and that are disposed in a second layer of the touch sensor panel, different than the first layer of the touch sensor panel, such that one or more mutual capacitance touch nodes are formed by the first set of touch electrodes and the second set of touch electrodes. The touch sensor panel also includes a third set of touch electrodes configured to operate as self-capacitance electrodes and that are disposed in the first layer or the second layer of the touch sensor panel.
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公开(公告)号：US11320934B1
公开(公告)日：2022-05-03
申请号：US17033533
申请日：2020-09-25
申请人： Apple Inc.
发明人： Sagar Rajiv Vaze
摘要： Bi-phase touch scanning of a touch sensor panel can reduce interference between touch and display operations for a touch screen including a display and a touch sensor panel. The bi-phase touch scan can include concurrently driving a first plurality of touch electrodes with a first drive signal having a first phase and a second plurality of touch electrodes with a second drive signal having a second phase, different from the first phase (e.g., 180° out of phase for improved charge balancing). In some examples, the bi-phase touch scan can be locally guarded such that adjacent touch electrodes to a sensed touch electrode can be driven with the same drive signal as the sensed touch electrode. In some examples, the bi-phase pattern of driving and sensing can balance charge along an axis and/or in a localized region.
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