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公开(公告)号：US11086444B2
公开(公告)日：2021-08-10
申请号：US16192664
申请日：2018-11-15
Applicant: APPLE INC.
Inventor： Weijun Yao , Wei Hsin Yao , Yingxuan Li , Bingrui Yang , Marduke Yousefpor , Abbas Jamshidi-Roudbari , Ahmad Al-Dahle
Abstract: A self-capacitive touch sensor panel configured to have a portion of both the touch and display functionality integrated into a common layer is provided. The touch sensor panel includes a layer with circuit elements that can switchably operate as both touch circuitry and display circuitry such that during a touch mode of the device the circuit elements operate as touch circuitry and during a display mode of the device the circuit elements operate as display circuitry. The touch mode and display mode can be time multiplexed. By integrating the touch hardware and display hardware into common layers, savings in power, weight and thickness of the device can be realized.
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公开(公告)号：US10712867B2
公开(公告)日：2020-07-14
申请号：US15522737
申请日：2015-10-27
Applicant: Apple Inc.
Inventor： Yingxuan Li , Weijun Yao , Vivek Pant , Martin Paul Grunthaner , Marduke Yousefpor , Sumant Ranganathan
IPC: G06F3/041 , G06F3/044 , G06F3/0354
Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a plurality of touch node electrodes. In some examples, the touch sensor panel comprises a touch controller configured to drive and sense the plurality of touch node electrodes in a fully bootstrapped configuration to obtain a fully bootstrapped touch image, drive and sense the plurality of touch node electrodes in a second configuration, different from the fully bootstrapped configuration, to obtain a second touch image, the second touch image including an effect of water on the touch sensor panel, and determine a final touch image based on the fully bootstrapped touch image and the second touch image, the final touch image not including the effect of the water on the touch sensor panel. In some examples, the second configuration comprises a mutual capacitance configuration. In some examples, the second configuration comprises a partially bootstrapped configuration.
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公开(公告)号：US10705658B2
公开(公告)日：2020-07-07
申请号：US15507722
申请日：2014-09-22
Applicant: Apple Inc.
Inventor： Yingxuan Li , Marduke Yousefpor , Weijun Yao
Abstract: A touch controller is disclosed. The touch controller can include sense circuitry configured to sense, during a self-capacitance portion of a touch frame, first one or more self-capacitances associated with a first plurality of touch pixels on a touch sensor panel, and sense, during a mutual capacitance portion of the touch frame, first one or more mutual capacitances associated with the first plurality of touch pixels. A touch processor can be configured to, based on the first one or more self-capacitances and the first one or more mutual capacitances, sense a single touch event associated with the touch frame.
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公开(公告)号：US10437385B2
公开(公告)日：2019-10-08
申请号：US15094970
申请日：2016-04-08
Applicant: Apple Inc.
Inventor： Kanke Gao , Wei Hsin Yao , Yingxuan Li , Weijun Yao
Abstract: Electrode configurations for reducing wobble error for a stylus translating on a surface over and between electrodes of a touch sensor panel are disclosed. In some examples, electrodes associated with a more linear signal profile are correlated with lower wobble error. In some examples, electrodes can have projections which can interleave with projections of adjacent electrodes. In some configurations, projections of adjacent electrodes can be interleaved in one-dimension; in other configurations, projections of adjacent electrodes can be interleaved in two-dimensions. In some configurations, the width and length of one or more projections in an electrode can be selected based on a desired signal profile for that electrode.
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公开(公告)号：US20180025694A1
公开(公告)日：2018-01-25
申请号：US15708795
申请日：2017-09-19
Applicant: Apple Inc.
Inventor： Ahmad Al-Dahle , Yingxuan Li , Marduke Yousefpor , Weijun Yao
CPC classification number: G09G3/3648 , G06F3/0412 , G06F3/044 , G06F2203/04105 , G06F2203/04106 , G06F2203/04107 , G09G2354/00
Abstract: Systems and method of performing touch and force sensing in an electronic device. The device includes a cover and an array of touch-sensor electrodes disposed below the cover. The first array of electrodes may be configured to sense a touch on the cover using a capacitive sensing scheme. The device also includes a force-sensor drive electrode disposed below the first array of electrodes and a force-sensor sense electrode disposed below the force-sensor drive electrode. The force-sensor drive and sense electrode may be configured to sense a force on the cover. The device also includes a shared drive circuit having an output that is operatively coupled to the array of touch-sensor electrodes and the force-sensor drive electrode.
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Patent Agency Ranking
公开(公告)号：US09779676B2
公开(公告)日：2017-10-03
申请号：US14639406
申请日：2015-03-05
Applicant: APPLE INC.
Inventor： Ahmad Al-Dahle , Yingxuan Li , Marduke Yousefpor , Weijun Yao
CPC classification number: G09G3/3648 , G06F3/0412 , G06F3/044 , G06F2203/04105 , G06F2203/04106 , G06F2203/04107 , G09G2354/00
Abstract: Systems and method of performing touch and force sensing in an electronic device. The device includes a cover and an array of touch-sensor electrodes disposed below the cover. The first array of electrodes may be configured to sense a touch on the cover using a capacitive sensing scheme. The device also includes a force-sensor drive electrode disposed below the first array of electrodes and a force-sensor sense electrode disposed below the force-sensor drive electrode. The force-sensor drive and sense electrode may be configured to sense a force on the cover. The device also includes a shared drive circuit having an output that is operatively coupled to the array of touch-sensor electrodes and the force-sensor drive electrode.
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公开(公告)号：US11625124B2
公开(公告)日：2023-04-11
申请号：US16921817
申请日：2020-07-06
Applicant: Apple Inc.
Inventor： Yingxuan Li , Marduke Yousefpor , Weijun Yao
Abstract: A touch controller is disclosed. The touch controller can include sense circuitry configured to sense, during a self-capacitance portion of a touch frame, first one or more self-capacitances associated with a first plurality of touch pixels on a touch sensor panel, and sense, during a mutual capacitance portion of the touch frame, first one or more mutual capacitances associated with the first plurality of touch pixels. A touch processor can be configured to, based on the first one or more self-capacitances and the first one or more mutual capacitances, sense a single touch event associated with the touch frame.
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公开(公告)号：US09965108B2
公开(公告)日：2018-05-08
申请号：US14279692
申请日：2014-05-16
Applicant: Apple Inc.
Inventor： Yingxuan Li , Weijun Yao , Hyunwoo Henry Nho , Wei Hsin Yao
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0416
Abstract: A touch controller. The touch controller can include first sense circuitry configured to be coupled to a first electrode on a touch sensor panel, the first sense circuitry configured to sense a first self-capacitance associated with the first electrode, and a first mutual capacitance associated with the first electrode. In some examples, the first sense circuitry can be configured to sense the first self-capacitance and the first mutual capacitance simultaneously. In some examples, the touch controller can further include a first mixer and a second mixer coupled to the first sense circuitry, the first mixer configured to demodulate a first output from the first sense circuitry to extract information about the first self-capacitance from the first output, the second mixer configured to demodulate the first output from the first sense circuitry to extract information about the first mutual capacitance from the first output.
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公开(公告)号：US09836165B2
公开(公告)日：2017-12-05
申请号：US14280355
申请日：2014-05-16
Applicant: Apple Inc.
Inventor： Hyunwoo Henry Nho , Hopil Bae , Weijun Yao , Yingxuan Li , Ahmad Al-Dahle
CPC classification number: G06F3/0421 , G06F3/0412 , G06F3/042 , G06F3/044 , G06F2203/04103 , G06F2203/04106 , G06K9/0002 , H01L27/322 , H01L27/323 , H01L27/326 , H01L27/3276 , H01L51/5281
Abstract: An integrated Silicon-OLED display and touch sensor panel is disclosed. The integrated Silicon-OLED display and touch sensor panel can include a Silicon substrate, an array of transistors, one or more metallization layers, one or more vias, an OLED stack, color filters, touch sensors, and additional components and circuitry. Additional components and circuitry can include an electrostatic discharge device, a light shielding, a switching matrix, one or more photodiodes, a near-infrared detector and near-infrared color filters. The integrated Silicon-OLED display and touch sensor panel can be further configured for near-field imaging, optically-assisted touch, and fingerprint detection. In some examples, a plurality of touch sensors and/or display pixels can be grouped into clusters, and the clusters can be coupled to a switching matrix for dynamic change of touch and/or display granularity.
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公开(公告)号：US09817513B2
公开(公告)日：2017-11-14
申请号：US14606996
申请日：2015-01-27
Applicant: Apple Inc.
Inventor： Weijun Yao , Wei Hsin Yao , Yingxuan Li
CPC classification number: G06F3/0418 , G06F3/0416 , G06F3/044
Abstract: A sense amplifier can be designed with a series variable resistance circuit to dynamically adjust an input resistance in series with the sense amplifier for stability during the different operating modes. In some examples, a switchable resistor can be switched into the input path of the sense amplifier for stability when required by increased capacitive loading of the sense electrodes, and can be switched out of the input path of the sense amplifier when unnecessary for stability. In some examples, an adjustable resistor can be coupled to and in series with the input of the sense amplifier. The resistance of the adjustable resistor can be tuned to stabilize the sense amplifier during operating modes having increased capacitive loading from the sense electrodes and can be minimized when additional input resistance is unnecessary for stability.
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