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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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公开(公告)号：US09678609B2
公开(公告)日：2017-06-13
申请号：US14059411
申请日：2013-10-21
Applicant: Apple Inc.
Inventor： Weijun Yao , Ahmad Al-Dahle , Yingxuan Li , Wei Hsin Yao
CPC classification number: G06F3/044 , G06F3/0416
Abstract: Systems and processes for stimulating a touch sensor panel using orthogonal frequencies are provided. In one example process, the drive lines of the touch sensor panel can be stimulated with stimulation signals having orthogonal frequencies. The orthogonal frequencies can be separated by a frequency that is inversely proportional to an integration time of the touch sensor panel. The touch signals generated in response to the stimulation signals can be amplified, converted into digital form, demodulated using the orthogonal frequencies, and integrated over the integration time. Integrating the demodulated signals over a length of time that is inversely proportional to the frequency spacing between the orthogonal frequencies reduces or eliminates interference in the touch signals caused by the stimulation signals having different frequencies.
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公开(公告)号：US11886651B2
公开(公告)日：2024-01-30
申请号：US17454039
申请日：2021-11-08
Applicant: Apple Inc.
Inventor： Steve Porter Hotelling , Wei Chen , Christoph Horst Krah , John Greer Elias , Wei Hsin Yao , Andrew Bert Hodge , Brian Richards Land , Willem den Boer , John Z. Zhong
IPC: G06F3/041 , G09G3/36 , G02F1/1333 , G02F1/1343 , G06F3/044 , G02F1/1335 , G02F1/1362
CPC classification number: G06F3/0412 , G02F1/1362 , G02F1/13338 , G02F1/133514 , G02F1/133528 , G02F1/134309 , G02F1/134363 , G06F3/0443 , G06F3/0444 , G06F3/0445 , G06F3/0446 , G06F3/04166 , G06F3/04184 , G09G3/3614 , G09G3/3648 , G02F2201/124 , G06F3/04164 , G06F2203/04103 , G06F2203/04104 , G06F2203/04111 , G06F2203/04112 , G09G2300/0426 , G09G2300/0439 , G09G2300/0456 , G09G2300/0478 , G09G2310/0205
Abstract: Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.
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公开(公告)号：US10678367B1
公开(公告)日：2020-06-09
申请号：US15261620
申请日：2016-09-09
Applicant: Apple Inc.
Inventor： Kanke Gao , Chung-Ming Chang , Jiayi Jin , Ruo-Gu Huang , Taif A. Syed , Wei Hsin Yao , Weijun Yao
IPC: G06F3/041 , G06F3/044 , G02F1/1333 , G02F1/1343 , G02F1/1362 , G02F1/1368
Abstract: A touch sensor panel is disclosed. The touch sensor panel can include a plurality of touch nodes, the plurality of touch nodes including a first set of touch nodes and a second set of touch nodes, different from the first set of the touch nodes. In some examples, sense circuitry can be configured to, during a first scan, sense a first combined touch signal of the first set of the touch nodes, and during a second scan, sense a second combined touch signal of the second set of the touch nodes. A touch processor can be configured to determine a touch image at the plurality of touch nodes based on the first and second combined touch signals.
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公开(公告)号：US09244561B2
公开(公告)日：2016-01-26
申请号：US14174760
申请日：2014-02-06
Applicant: Apple Inc.
Inventor： Steve Porter Hotelling , Wei Chen , Christoph Horst Krah , John Greer Elias , Wei Hsin Yao , John Z. Zhong , Andrew Bert Hodge , Brian Richards Land , Willem den Boer
IPC: G09G3/36 , G06F3/044 , G06F3/041 , G02F1/1333 , G02F1/1343
CPC classification number: G06F3/0412 , G02F1/13338 , G02F1/133514 , G02F1/133528 , G02F1/134309 , G02F1/134363 , G02F1/1362 , G02F2201/124 , G06F3/0416 , G06F3/044 , G06F2203/04103 , G06F2203/04104 , G06F2203/04111 , G06F2203/04112 , G09G3/3648 , G09G2300/0426 , G09G2300/0439 , G09G2300/0456 , G09G2300/0478
Abstract: Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.
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Patent Agency Ranking
公开(公告)号：US20150169121A1
公开(公告)日：2015-06-18
申请号：US14256849
申请日：2014-04-18
Applicant: Apple Inc.
Inventor： Weijun Yao , Wei Hsin Yao , Yingxuan Li , Hopil Bae , Ahmad Al-Dahle
CPC classification number: G06F3/0412 , G06F3/044
Abstract: Integrated touch screens are provided including drive lines formed of grouped-together circuit elements of a thin film transistor layer and sense lines formed between a color filter layer and a material layer that modifies or generates light. The common electrodes (Vcom) in the TFT layer can be grouped together during a touch sensing operation to form drive lines. Sense lines can be formed on a separate layer dedicated to only touch hardware.
Abstract translation: 提供了集成触摸屏，包括由薄膜晶体管层的组合电路元件形成的驱动线和在滤色器层和修饰或产生光的材料层之间形成的感测线。 可以在触摸感测操作期间将TFT层中的公共电极（Vcom）组合在一起以形成驱动线。 感应线可以在专用于仅触摸硬件的单独的层上形成。
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公开(公告)号：US20140152619A1
公开(公告)日：2014-06-05
申请号：US14174760
申请日：2014-02-06
Applicant: Apple Inc.
Inventor： Steve Porter HOTELLING , Wei Chen , Christoph Horst Krah , John Greer Elias , Wei Hsin Yao , John Z. Zhong , Andrew Bert Hodge , Brian Richards Land , Willem den Boer
IPC: G06F3/044
CPC classification number: G06F3/0412 , G02F1/13338 , G02F1/133514 , G02F1/133528 , G02F1/134309 , G02F1/134363 , G02F1/1362 , G02F2201/124 , G06F3/0416 , G06F3/044 , G06F2203/04103 , G06F2203/04104 , G06F2203/04111 , G06F2203/04112 , G09G3/3648 , G09G2300/0426 , G09G2300/0439 , G09G2300/0456 , G09G2300/0478
Abstract: Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.
Abstract translation: 这里公开了将触摸感测元件与显示电路集成的液晶显示（LCD）触摸屏。 整合可能采取各种形式。 触摸感应元件可以在LCD叠层中完全实现，但不在滤色器板和阵列板之间。 或者，一些触摸感测元件可以在滤色器和阵列板之间，而其它触摸感测元件不在印版之间。 在另一替代方案中，所有触摸感测元件可以在滤色器和阵列板之间。 后一种替代方案可以包括常规和平面内切换（IPS）LCD。 在一些形式中，一个或多个显示结构也可以具有触摸感测功能。 还公开了用于制造和操作这种显示器的技术以及体现这种显示器的各种装置。
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公开(公告)号：US10936120B2
公开(公告)日：2021-03-02
申请号：US15313549
申请日：2014-05-22
Applicant: Apple Inc.
Inventor： Weijun Yao , Ahmad Al-Dahle , Hyunwoo Nho , Taif A. Syed , Wei Hsin Yao , Yingxuan Li
Abstract: A self-capacitance touch screen. In some examples, the touch screen comprises a plurality of display pixels, a first display pixel of the plurality of display pixels including a first touch electrode of a plurality of touch electrodes, and a gate line coupled to the first display pixel, wherein the gate line is configured such that a voltage at the gate line substantially follows a voltage at the first touch electrode. In some examples, the gate line is coupled to a resistor, the resistor being configured to decouple the gate line from ground. In some examples, the gate line is coupled to an AC voltage source.
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公开(公告)号：US10691235B2
公开(公告)日：2020-06-23
申请号：US14256849
申请日：2014-04-18
Applicant: Apple Inc.
Inventor： Weijun Yao , Wei Hsin Yao , Yingxuan Li , Hopil Bae , Ahmad Al-Dahle
Abstract: Integrated touch screens are provided including drive lines formed of grouped-together circuit elements of a thin film transistor layer and sense lines formed between a color filter layer and a material layer that modifies or generates light. The common electrodes (Vcom) in the TFT layer can be grouped together during a touch sensing operation to form drive lines. Sense lines can be formed on a separate layer dedicated to only touch hardware.
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20.发明授权公开(公告)号：US10277119B2
公开(公告)日：2019-04-30
申请号：US15798193
申请日：2017-10-30
Applicant: Apple Inc.
Inventor： Weijun Yao , David A. Stronks , Hopil Bae , Kingsuk Brahma , Wei Hsin Yao , Yafei Bi , Yingxuan Li
IPC: G06F3/044 , H02M3/07 , G06F3/041 , G06F1/3234 , H01L23/64
Abstract: A charge pump that can be configured to operate in a first mode and a second mode is disclosed. The charge pump can comprise a charging capacitor coupled to a first node and configured to transfer a first DC voltage to the first node. The charge pump can also comprise a first output node and a second output node coupled to the first node. During the first mode, the first output node can be configured to output a second DC voltage based on the first DC voltage, and the second output node can be configured to output a third DC voltage based on the first DC voltage. During the second mode, the first output node can be configured to output the second DC voltage, and the second output node can be configured to output an AC voltage, the AC voltage being offset by the third DC voltage.
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