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公开(公告)号：US20230100129A1
公开(公告)日：2023-03-30
申请号：US17933783
申请日：2022-09-20
Applicant: Apple Inc.
Inventor： Sagar R. VAZE , Marduke YOUSEFPOR , Amit NAYYAR
Abstract: Differential driving and/or sensing can reduce noise in a touch screen. In some examples, the touch screen can include column and row electrodes routed vertically in the active area. In some examples, the touch electrodes and/or routing traces can be implemented using metal mesh in first and second metal layers. To improve optical performance, overlapping portions of metal mesh can be designed to provide an appearance of uniform width/area. In some examples, a dielectric layer can have an increased thickness and/or a reduced dielectric constant, and/or metal mesh in the first metal layer can be flooded with a transparent conductive material. In some examples, routing traces can be disposed beneath touch electrodes and/or metal mesh for touch electrodes can be flooded with a transparent conductive material without flooding metal mesh for routing traces. In some examples, touch electrodes can be interleaved within a touch node to improve differential cancelation.
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Patent Agency Ranking
公开(公告)号：US20180307371A1
公开(公告)日：2018-10-25
申请号：US16022434
申请日：2018-06-28
Applicant: Apple Inc.
Inventor： Amit NAYYAR , Shahrooz SHAHPARNIA
CPC classification number: G06F3/0416 , G06F1/3262
Abstract: A touch controller can dynamically balance performance criteria, such as signal-to-noise ratio (SNR) thresholds, with power consumption for touch sensitive devices. A touch controller can be configured to reduce power consumption by reconfiguring bank boundaries for an active mode scan so as to reduce the number of banks scanned with a banked active mode scan. Additionally or alternatively, the stimulation signal amplitude and integration time of the touch controller can be dynamically adjusted to balance performance criteria with power consumption. Default integration times and default stimulation signal amplitudes can be increased in higher-noise operating environments to raise SNR, and can be reduced to save power in lower-noise operating environments. Additionally or alternatively, the touch scanning rate of the touch controller can be dynamically adjusted to reduce power consumption of the touch sensitive device or to reallocate touch sensing frames to increase integration times and thereby SNR performance.
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公开(公告)号：US20240028155A1
公开(公告)日：2024-01-25
申请号：US18476214
申请日：2023-09-27
Applicant: Apple Inc.
Inventor： Sagar R. VAZE , Marduke YOUSEFPOR , Amit NAYYAR
CPC classification number: G06F3/04164 , G06F3/044 , G06F3/0443 , G06F3/0448 , G06F3/0445 , G06F2203/04112 , G06F3/0446 , G06F3/0412 , G06F2203/04107
Abstract: Differential driving and/or sensing can reduce noise in a touch screen. In some examples, the touch screen can include column and row electrodes routed vertically in the active area. In some examples, the touch electrodes and/or routing traces can be implemented using metal mesh in first and second metal layers. To improve optical performance, overlapping portions of metal mesh can be designed to provide an appearance of uniform width/area. In some examples, a dielectric layer can have an increased thickness and/or a reduced dielectric constant, and/or metal mesh in the first metal layer can be flooded with a transparent conductive material. In some examples, routing traces can be disposed beneath touch electrodes and/or metal mesh for touch electrodes can be flooded with a transparent conductive material without flooding metal mesh for routing traces. In some examples, touch electrodes can be interleaved within a touch node to improve differential cancelation.
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公开(公告)号：US20230118216A1
公开(公告)日：2023-04-20
申请号：US18068486
申请日：2022-12-19
Applicant: Apple Inc.
Inventor： John Stephen SMITH , Amit NAYYAR , Joseph Kurth REYNOLDS , Sagar Rajiv VAZE , Marduke YOUSEFPOR
Abstract: 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：US20210373711A1
公开(公告)日：2021-12-02
申请号：US17326249
申请日：2021-05-20
Applicant: Apple Inc.
Inventor： John Stephen SMITH , Amit NAYYAR , Joseph Kurth REYNOLDS , Sagar Rajiv VAZE , Marduke YOUSEFPOR
Abstract: 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：US20160216838A1
公开(公告)日：2016-07-28
申请号：US14848249
申请日：2015-09-08
Applicant: Apple Inc.
Inventor： Morakinyo J. AINA , Amit NAYYAR , Sean E. O'CONNOR , Peter CSASZAR
CPC classification number: G06F3/0418 , G06F3/0416 , G06F3/044
Abstract: This relates to a touch sensor panel including: a substrate having a first surface and a second surface; a first touch node formed by a first drive line and a first section of a first sense line both routed on the first surface of the substrate; and a second touch node formed by a second drive line routed on the first surface of the substrate and a second section of the first sense line routed on the second surface of the substrate.
Abstract translation: 这涉及一种触摸传感器面板，包括：具有第一表面和第二表面的基底; 由第一驱动线和第一感测线的第一部分形成的第一触摸节点，两者均布置在基板的第一表面上; 以及由在衬底的第一表面上路由的第二驱动线形成的第二触摸节点和在衬底的第二表面上路由的第一感测线的第二部分。
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