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公开(公告)号：US11893183B2
公开(公告)日：2024-02-06
申请号：US16510410
申请日：2019-07-12
Applicant: Apple Inc.
Inventor： Isaac Chan , Prathit Bugnait , Albert Lin , Chun-Hao Tung , Sunggu Kang , John Z. Zhong
IPC: G06F3/041 , G06F3/044 , G06F3/0354 , G09G3/36
CPC classification number: G06F3/0418 , G06F3/03545 , G06F3/044 , G09G3/3659 , G06F2203/04804 , G09G2300/0809
Abstract: Touch sensor panel configurations for reducing wobble error for a stylus translating on a surface over and between electrodes of the touch sensor panel are disclosed. In some examples, electrodes with more linear signal profiles are correlated with lower wobble error. In some examples, diffusing elements formed of floating segments of conductive materials can diffuse signal from a stylus to a plurality of electrodes, thus, making the signal profiles associated with the electrodes more linear. In addition, diffusing elements can be configured to improve the optical uniformity of the touch sensor panel. In some examples, the diffusing elements can be formed on the same layer as floating dummy pixels and resemble a plurality of merged floating dummy pixels.
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公开(公告)号：US11853515B2
公开(公告)日：2023-12-26
申请号：US16712339
申请日：2019-12-12
Applicant: Apple Inc.
Inventor： Jeffrey M. Weisse , Chun-Hao Tung , Ji Hun Choi , Wenqing Dai
CPC classification number: G06F3/0443 , G06F3/04166 , G06F2203/04102
Abstract: Touch screens with ultra-thin stack-ups can provide for a lower profile device, can improve the optical image on the display by reducing the display to cover glass distance, and can reduce the weight of the device. In some examples, the thickness of the touch screen stack-up can be reduced and/or the border region reduced, by removing the flex circuit connection from the stack-up. A flexible substrate can be used to enable routing of touch electrodes to touch circuitry. In some examples including a shield layer, the thickness of the touch screen stack-up can be reduced by routing the shield layer to a shield electrode on the touch sensor panel. The shield layer can then be routed to touch sensing circuitry via the flexible substrate. In some examples, the touch sensor panel or a portion of thereof can be integrated with the polarizer.
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公开(公告)号：US11579722B2
公开(公告)日：2023-02-14
申请号：US17224999
申请日：2021-04-07
Applicant: Apple Inc.
Inventor： Isaac W. Chan , Chun-Hao Tung , Fletcher R. Rothkopf , Sunggu Kang , John Z. Zhong
Abstract: Display layers and touch sensor layers may be overlapped by enclosure walls in an electronic device. The electronic device may have a front wall and opposing rear wall and curved sidewalls. The front wall and the curved sidewalls may be formed from a glass layer or other transparent member. A touch sensor layer and display layer may extend under the glass layer with curved sidewalls. A touch sensor layer may also extend under the opposing rear wall. A foldable electronic device may have a flexible transparent wall portion that joins planar transparent walls. Components may be interposed between the transparent planar walls and opaque walls. Display and touch layers may be overlapped by the transparent walls and the transparent flexible wall portion. Touch sensor structures may also be overlapped by the opaque walls.
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公开(公告)号：US11054948B2
公开(公告)日：2021-07-06
申请号：US16585957
申请日：2019-09-27
Applicant: Apple Inc.
Inventor： Seung Hoon Lee , Ji Hun Choi , Chun-Hao Tung , Sunggu Kang
Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel includes a substrate including a first side and a second side, a passivation layer, a first plurality of touch electrodes formed on the first side of the substrate, and a second plurality of touch electrodes formed on the second side of the substrate. In some examples, a component of the touch sensor panel, other than the first plurality of touch electrodes and the second plurality of touch electrodes, is configured to prevent light configured to activate the passivation layer during fabrication of the touch sensor panel from being transmitted from the first side of the substrate to the second side of the substrate.
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Patent Agency Ranking
公开(公告)号：US10983626B2
公开(公告)日：2021-04-20
申请号：US15159074
申请日：2016-05-19
Applicant: Apple Inc.
Inventor： Isaac W. Chan , Chun-Hao Tung , Fletcher R. Rothkopf , Sunggu Kang , John Z. Zhong
Abstract: Display layers and touch sensor layers may be overlapped by enclosure walls in an electronic device. The electronic device may have a front wall and opposing rear wall and curved sidewalls. The front wall and the curved sidewalls may be formed from a glass layer or other transparent member. A touch sensor layer and display layer may extend under the glass layer with curved sidewalls. A touch sensor layer may also extend under the opposing rear wall. A foldable electronic device may have a flexible transparent wall portion that joins planar transparent walls. Components may be interposed between the transparent planar walls and opaque walls. Display and touch layers may be overlapped by the transparent walls and the transparent flexible wall portion. Touch sensor structures may also be overlapped by the opaque walls.
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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
Applicant: Apple Inc.
Inventor： Massoud Badaye , Sudip Mondal , Sagar Rajiv Vaze , Albert Lin , Qian Zhao , Chun-Hao Tung , Sunggu Kang , John Z. Zhong
Abstract: 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：US10444918B2
公开(公告)日：2019-10-15
申请号：US15691283
申请日：2017-08-30
Applicant: Apple Inc.
Inventor： Wencong Zhu , Albert Lin , Alexander A. Penn , Ashray Vinayak Gogte , Chun-Hao Tung , Hao Zhang , Hui Zhou , John Z. Zhong , Steven P. Hotelling , Sudip Mondal , Sumant Ranganathan , Sunggu Kang , Ramachandran Chundru , Viswa B. Pilla
IPC: G06F3/044
Abstract: Touch sensor configurations for reducing electrostatic discharge events in the border area of a touch sensor panel is disclosed. Touch sensors (e.g., electrodes formed on the cover material and/or the opaque mask) can be susceptible to certain events such as arcing and discharge/joule heating, which may negatively affect touch sensor performance. Examples of the disclosure can include increasing the trace width, spacing, and/or thickness in the border area relative to the trace width, spacing, and/or thickness in the visible/active area along one or more sides of the touch sensor panel. In some examples, touch electrodes can be located exclusively in the visible/active areas along one or more sides of the touch sensor panel, while dummy sections can be included in both the border and visible/active areas. Additionally or alternatively, one or more gaps between adjacent touch electrodes in the border area or serpentine routing can be included.
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公开(公告)号：US10444874B2
公开(公告)日：2019-10-15
申请号：US14957553
申请日：2015-12-02
Applicant: Apple Inc.
Inventor： Chun-Hao Tung , EnkhAmgalan Dorjgotov , Masato Kuwabara , Sunggu Kang , Cheng Chen , John Z. Zhong
Abstract: Touch sensor panels typically include a plurality of layers that can be stacked on top of each other. When the touch sensor panel is used in a bright environment, incident light can hit the interfaces between those layers of the stackup having mismatched refractive indices and can reflect off those interfaces. The light reflected from those interfaces can give rise to the appearance of fringes on the touch sensor panel, which can be visually distracting. In order to reduce the appearance of these fringes, embodiments of the disclosure are directed to the addition of an index matching passivation layer between a conductive layer of traces and an adhesive layer in the touch sensor panel stackup.
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公开(公告)号：US10198040B2
公开(公告)日：2019-02-05
申请号：US15272957
申请日：2016-09-22
Applicant: Apple Inc.
Inventor： Zhen Zhang , Victor H. Yin , Cyrus Y. Liu , Paul S. Drzaic , Sungwon Bae , Chun-Hao Tung , Kiarash Vakhshouri , Sunggu Kang , John Z. Zhong
Abstract: An electronic device may have a flexible portion that allows the device to be folded. The device may have a flexible display. The flexible display may have a flexible display layer, a cover layer, a touch sensor interposed between the flexible display layer and the cover layer, a support layer, and a polarizer layer. The polarizer layer may be interposed between the touch sensor and the flexible display or between the touch sensor and the cover layer. The touch sensor may include optically clear adhesive that is flexible and facilitates bending of the display. The optically clear adhesive may include additives such as water vapor penetration reducing additive, anticorrosion additive, ultraviolet-light blocking additive, and index-of-refraction adjustment additive. The support layer may be formed from shape memory alloy or amorphous metal and may have openings to facilitate bending.
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