公开(公告)号：US20190146623A1

公开(公告)日：2019-05-16

申请号：US16231065

申请日：2018-12-21

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 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G06F3/044 ,  G09G3/36

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.

公开(公告)号：US20150301681A1

公开(公告)日：2015-10-22

申请号：US14791145

申请日：2015-07-02

Applicant: Apple Inc.

Inventor： Christoph Horst KRAH ,  Steve Porter HOTELLING ,  Sean Erik O'CONNOR ,  Wayne Carl WESTERMAN

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04104

Abstract: The use of multiple stimulation signals having one or more frequencies and one or more phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have one or more mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of one or more selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the one or more mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the one or more selected frequencies. After all steps have been completed, the demodulated signals from the one or more mixers can be used in calculations to determine an image of touch for the touch sensor panel at each of the one or more frequencies.

Abstract translation: 公开了使用具有一个或多个频率和一个或多个相位的多个刺激信号来产生触摸传感器面板上的触摸图像。 多个感测通道中的每一个可以耦合到触摸传感器面板中的列并且可以具有一个或多个混合器。 感测通道中的每个混频器可以利用能够产生特定频率的解调频率的电路。 在多个步骤中的每个步骤中，可以使用一个或多个所选频率的各个相位来同时刺激触摸传感器面板的行，并且每个感测通道中的一个或多个混频器可以被配置为解调从连接的列接收的信号 使用一个或多个所选择的频率到每个感测信道。 在完成所有步骤之后，可以在计算中使用来自一个或多个混频器的解调信号，以在一个或多个频率中的每一个处确定触摸传感器面板的触摸图像。

公开(公告)号：US20150084926A1

公开(公告)日：2015-03-26

申请号：US14561075

申请日：2014-12-04

Applicant: Apple Inc.

Inventor： Christoph Horst KRAH ,  Minh-Dieu Thi VU

IPC: G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/048 ,  G06F2203/04104 ,  G06F2203/04106 ,  G06F2203/04108

Abstract: A sensor panel device that can generate and use a stimulus signal having multiple different waveforms for detecting events on or near the sensor panel is disclosed. Among other things, such a stimulus signal can be used to reject environmental noise present in the device. In some embodiments, the stimulus signal has multiple waveforms having different frequencies. Logic circuitry can generate representative values from output of the different waveforms applied to one or more sensing nodes in the sensor panel device. From the representative values, a final value can be generated that represents whether an event occurred at or near the one or more sensing nodes.

Abstract translation: 公开了一种传感器面板装置，其可以生成并使用具有多个不同波形的刺激信号来检测传感器面板上或附近的事件。 除此之外，这种刺激信号可以用于排除设备中存在的环境噪声。 在一些实施例中，刺激信号具有不同频率的多个波形。 逻辑电路可以从施加到传感器面板装置中的一个或多个感测节点的不同波形的输出产生代表性值。 根据代表值，可以生成表示在一个或多个感测节点处或附近发生事件的最终值。

公开(公告)号：US20140267087A1

公开(公告)日：2014-09-18

申请号：US13844349

申请日：2013-03-15

Applicant: APPLE INC.

Inventor： Marduke YOUSEFPOR ,  Christoph Horst KRAH ,  Kevin J. WHITE

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/0418 ,  G06F3/044

Abstract: A touch input device configured to mitigate the effects of dynamic cross talk noise is provided. The touch input device can dither an effective resistance of a plurality of gate lines proximal to the touch sensor panel in order to determine if a phase of a touch signal demodulator needs to be adjusted.

Abstract translation: 提供了配置成减轻动态串扰噪声的影响的触摸输入设备。 触摸输入装置可以使接近触摸传感器面板的多个栅极线的有效电阻抖动，以便确定触摸信号解调器的相位是否需要调整。

公开(公告)号：US20220083190A1

公开(公告)日：2022-03-17

申请号：US17461831

申请日：2021-08-30

Applicant: Apple Inc.

Inventor： Christoph Horst KRAH ,  Steven Porter HOTELLING ,  Sean Erik O'CONNOR ,  Wayne Carl WESTERMAN

IPC: G06F3/041 ,  G06F3/044

Abstract: The use of multiple stimulation signals having one or more frequencies and one or more phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have one or more mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of one or more selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the one or more mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the one or more selected frequencies. After all steps have been completed, the demodulated signals from the one or more mixers can be used in calculations to determine an image of touch for the touch sensor panel at each of the one or more frequencies.

公开(公告)号：US20180275820A1

公开(公告)日：2018-09-27

申请号：US15997541

申请日：2018-06-04

Applicant: Apple Inc.

Inventor： Christoph Horst KRAH ,  Steven Porter HOTELLING ,  Sean Erik O'CONNOR ,  Wayne Carl WESTERMAN

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333

Abstract: The use of multiple stimulation signals having one or more frequencies and one or more phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have one or more mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of one or more selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the one or more mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the one or more selected frequencies. After all steps have been completed, the demodulated signals from the one or more mixers can be used in calculations to determine an image of touch for the touch sensor panel at each of the one or more frequencies.

公开(公告)号：US20170242544A1

公开(公告)日：2017-08-24

申请号：US15443584

申请日：2017-02-27

Applicant: Apple Inc.

Inventor： Christoph Horst KRAH ,  Minh-Dieu Thi VU

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/048 ,  G06F2203/04104 ,  G06F2203/04106 ,  G06F2203/04108

Abstract: A sensor panel device that can generate and use a stimulus signal having multiple different waveforms for detecting events on or near the sensor panel is disclosed. Among other things, such a stimulus signal can be used to reject environmental noise present in the device. In some embodiments, the stimulus signal has multiple waveforms having different frequencies. Logic circuitry can generate representative values from output of the different waveforms applied to one or more sensing nodes in the sensor panel device. From the representative values, a final value can be generated that represents whether an event occurred at or near the one or more sensing nodes.

公开(公告)号：US20130271410A1

公开(公告)日：2013-10-17

申请号：US13916357

申请日：2013-06-12

Applicant: Apple Inc.

Inventor： Christoph Horst KRAH ,  Steve Porter HOTELLING ,  Sean Erik O'CONNOR ,  Wayne Carl WESTERMAN

IPC: G06F3/041

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04104

Abstract: The use of multiple stimulation frequencies and phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have multiple mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the multiple mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the selected frequencies. After all steps have been completed, the demodulated signals from the multiple mixers can be used in calculations to determine an image of touch for the touch sensor panel at each frequency.

Abstract translation: 公开了使用多个刺激频率和相位以在触摸传感器面板上产生触摸图像。 多个感测通道中的每一个可以耦合到触摸传感器面板中的列并且可以具有多个混合器。 感测通道中的每个混频器可以利用能够产生特定频率的解调频率的电路。 在多个步骤中的每一个步骤中，可以使用选定频率的各个相位来同时刺激触摸传感器面板的行，并且每个感测通道中的多个混频器可以被配置为解调从连接到每个感测通道的列接收的信号，使用 所选频率。 所有步骤完成后，来自多个混音器的解调信号可用于计算，以确定每个频率下触摸传感器面板的触摸图像。