公开(公告)号：US20150268759A1

公开(公告)日：2015-09-24

申请号：US14224032

申请日：2014-03-24

Applicant: Synaptics Incorporated

Inventor： Christopher A. LUDDEN ,  Jeffrey A. SMALL

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/0416

Abstract: Embodiments described herein include a processing system for a display device comprising an integrated capacitive sensing device that includes at least one input/output pad that is selectable between providing source signals to the display device and operating a sensor electrode for capacitive sensing. Other embodiments include a display device having a capacitive sensing device, an input device having an integrated display and capacitive sensing device, and a method for operating an integrated display and capacitive sensing device.

Abstract translation: 本文描述的实施例包括用于显示装置的处理系统，其包括集成电容感测装置，其包括至少一个输入/输出垫，其可在向显示装置提供源信号和操作用于电容感测的传感器电极之间进行选择。 其他实施例包括具有电容感测装置的显示装置，具有集成显示器和电容感测装置的输入装置，以及用于操作集成显示和电容感测装置的方法。

公开(公告)号：US20150220206A1

公开(公告)日：2015-08-06

申请号：US14308986

申请日：2014-06-19

Applicant: Synaptics Incorporated

Inventor： Imre KNAUSZ ,  Eric Scott BOHANNON ,  Christopher A. LUDDEN

IPC: G06F3/041 ,  G06F3/045 ,  G06F3/044

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

Abstract: Embodiments include a method (as well as an input device and processing system) that includes driving a display signal onto at least one of a plurality of display electrodes for updating a display, and driving an input sensing signal onto at least one of a plurality of sensor electrodes, where driving the input sensing and driving the display signal at least partially overlap in time. The method further includes receiving, using a coupling electrode disposed proximate to the at least one display electrode, a coupling signal that represents an effect of a signal on at least one of the display electrodes, on a signal on at least one of the sensor electrodes, acquiring resulting signals with at least one of the sensor electrodes, and adjusting the resulting signals based on the coupling signal.

Abstract translation: 实施例包括一种方法（以及输入装置和处理系统），其包括将显示信号驱动到用于更新显示器的多个显示电极中的至少一个上，以及将输入感测信号驱动到多个 传感器电极，其中驱动输入感测和驱动显示信号至少部分地在时间上重叠。 所述方法还包括使用设置在所述至少一个显示电极附近的耦合电极，在至少一个所述传感器电极上的信号上接收表示至少一个显示电极上的信号的影响的耦合信号 用至少一个所述传感器电极获取所得到的信号，并且基于所述耦合信号来调整所得到的信号。

公开(公告)号：US20150193082A1

公开(公告)日：2015-07-09

申请号：US14635927

申请日：2015-03-02

Applicant: Synaptics Incorporated

Inventor： Christopher A. LUDDEN

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04107 ,  G09G2330/06

Abstract: Embodiments described herein mitigate the effect of a coupling capacitance between a sensor electrode in a touch sensor and a display electrode in a display screen. An input device, which includes the touch sensor and display screen, may transmit a guarding signal on the display electrodes when performing capacitive sensing. In one embodiment, the guarding signal may have similar characteristics as a modulated signal (e.g., similar amplitude and/or phase) driven on the sensor electrode to detect interaction between the input device and an input object. By driving a guarding signal that is similar to the modulated signal onto the display electrodes, the voltage difference between the sensor electrode and display electrode remains the same. Accordingly, the coupling capacitance between the sensor electrode and the display electrode does not affect a capacitance measurement used to detect the user interaction.

公开(公告)号：US20160195961A1

公开(公告)日：2016-07-07

申请号：US15068774

申请日：2016-03-14

Applicant: SYNAPTICS INCORPORATED

Inventor： Christopher A. LUDDEN

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G09G3/20 ,  G09G5/00 ,  G09G2300/0426 ,  G09G2310/0275 ,  G09G2330/06

Abstract: Embodiments of the disclosure generally provide an integrated control system having an integrated controller that is configured to provide both display updating signals to a display device and a capacitive sensing signal to a sensor electrode that is disposed within the integrated input device. The internal and/or external signal routing configurations described herein can be adapted to reduce signal routing complexity typically found in conventional devices and reduce the effect of electrical interference created by the capacitive coupling formed between the display routing, capacitive sensing routing and/or other components within the integrated control system. Embodiments can also be used to reduce electromagnetic interference (EMI) on the display and touch sensing signals received, transmitted and processed within the integrated control system.

公开(公告)号：US20150226871A1

公开(公告)日：2015-08-13

申请号：US14176952

申请日：2014-02-10

Applicant: Synaptics Incorporated

Inventor： Christopher A. LUDDEN

IPC: G01V3/08

CPC classification number: G01V3/08

Abstract: Embodiments described herein include an input device that drives an equalization signal onto an electrode that may be capacitively coupled to a sensor electrode used for capacitive sensing. The equalization signal may include a plurality of pulses that are synchronized to be out of phase with a capacitive sensing signal driven on the sensor electrode. For example, as the capacitive sensing signal transitions from a low voltage to a high voltage, the equalization signal transitions from a high voltage to a low voltage. Doing so increases the voltage difference between the electrodes and increases the slew rate of the capacitive sensing signal. In further embodiments, where the input device includes a display device, the equalization signal may be driven onto display electrodes that are used when updating a display.

Abstract translation: 本文描述的实施例包括将均衡信号驱动到可以电容耦合到用于电容感测的传感器电极的电极上的输入装置。 均衡信号可以包括多个脉冲，其被同步以与在传感器电极上驱动的电容感测信号异相。 例如，随着电容感测信号从低电压转变为高电压，均衡信号从高电压转变为低电压。 这样做会增加电极之间的电压差，并增加电容感测信号的转换速率。 在另外的实施例中，在输入设备包括显示设备的情况下，均衡信号可以被驱动到在更新显示器时使用的显示电极上。

公开(公告)号：US20150123944A1

公开(公告)日：2015-05-07

申请号：US14595049

申请日：2015-01-12

Applicant: Synaptics Incorporated

Inventor： Jeffrey S. LILLIE ,  John CHILDS ,  Christopher A. LUDDEN ,  Thomas MACKIN ,  Petr SHEPELEV

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G09G5/18

Abstract: Embodiments of the invention generally provide an input device with display screens that periodically update (refresh) the screen by selectively driving common electrodes corresponding to pixels in a display line. In general, the input devices drive each electrode until each display line (and each pixel) of a display frame is updated. In addition to updating the display, the input device may perform capacitive sensing using the display screen as a proximity sensing area. To do this, the input device may interleave periods of capacitive sensing between periods of updating the display based on a display frame. For example, the input device may update the first half of display lines of the display screen, pause display updating, perform capacitive sensing, and finish updating the rest of the display lines. Further still, the input device may use common electrodes for both updating the display and performing capacitive sensing.

Abstract translation: 本发明的实施例通常提供具有显示屏幕的输入设备，其通过选择性地驱动对应于显示行中的像素的公共电极来周期性地更新（刷新）屏幕。 通常，输入设备驱动每个电极，直到显示框架的每个显示线（和每个像素）被更新。 除了更新显示器之外，输入设备可以使用显示屏幕来执行电容感测作为接近感测区域。 为此，输入设备可以基于显示帧来交织更新显示器的时段之间的电容感测周期。 例如，输入装置可以更新显示画面的显示行的前半部分，暂停显示更新，执行电容感测，并且更新其余的显示行。 此外，输入装置可以使用公共电极来更新显示和执行电容感测。

公开(公告)号：US20150091843A1

公开(公告)日：2015-04-02

申请号：US14067792

申请日：2013-10-30

Applicant: SYNAPTICS INCORPORATED

Inventor： Christopher A. LUDDEN

IPC: G06F3/044

CPC classification number: G06F3/0418 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04107 ,  G09G2330/06

Abstract: Embodiments described herein mitigate the effect of a coupling capacitance between a sensor electrode in a touch sensor and a display electrode in a display screen. An input device, which includes the touch sensor and display screen, may transmit a guarding signal on the display electrodes when performing capacitive sensing. In one embodiment, the guarding signal may have similar characteristics as a modulated signal (e.g., similar amplitude and/or phase) driven on the sensor electrode to detect interaction between the input device and an input object. By driving a guarding signal that is similar to the modulated signal onto the display electrodes, the voltage difference between the sensor electrode and display electrode remains the same. Accordingly, the coupling capacitance between the sensor electrode and the display electrode does not affect a capacitance measurement used to detect the user interaction.

Abstract translation: 本文描述的实施方式减轻了触摸传感器中的传感器电极与显示屏幕中的显示电极之间的耦合电容的影响。 包括触摸传感器和显示屏的输入装置在进行电容感测时可以在显示电极上传输保护信号。 在一个实施例中，保护信号可以具有与在传感器电极上驱动的调制信号（例如，类似的幅度和/或相位）相似的特性，以检测输入设备和输入对象之间的相互作用。 通过将与调制信号相似的保护信号驱动到显示电极上，传感器电极和显示电极之间的电压差保持不变。 因此，传感器电极和显示电极之间的耦合电容不影响用于检测用户交互的电容测量。

公开(公告)号：US20150091587A1

公开(公告)日：2015-04-02

申请号：US14042673

申请日：2013-09-30

Applicant: Synaptics Incorporated

Inventor： Petr SHEPELEV ,  Christopher A. LUDDEN ,  Jeffrey LUKANC ,  Stephen L. MOREIN

IPC: G01R27/26

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416

Abstract: Embodiments described herein include a display device having a capacitive sensing device, a processing system and a method for detecting presence of an input object using a capacitive sensing device. In one embodiment, the display device includes a plurality of sensor electrodes, a field shaping electrode, and a processing system. Each sensor electrode includes at least one common electrode. Dimensions of each sensor electrode correspond to dimension of pixel elements of the display device. The field shaping electrode is disposed between two of the plurality of sensor electrodes. Dimensions of the field shaping electrode correspond to the dimension of pixel elements of the display device. The field shaping electrode is laterally spaced apart from the two sensor electrodes a distance corresponding to dimensions of the pixel elements. The processing system is coupled to the sensor electrodes and the field shaping electrode. The processing system is configured to, in a first processing mode, drive a transmitter signal onto a first sensor electrode of the sensor electrodes and receiving a resulting signal with the first sensor electrode of the sensor electrodes comprising effects corresponding to the transmitter signal.

Abstract translation: 本文描述的实施例包括具有电容感测装置，处理系统和用于使用电容感测装置检测输入对象的存在的方法的显示装置。 在一个实施例中，显示装置包括多个传感器电极，场整形电极和处理系统。 每个传感器电极包括至少一个公共电极。 每个传感器电极的尺寸对应于显示装置的像素元件的尺寸。 场成形电极设置在多个传感器电极中的两个之间。 场成形电极的尺寸对应于显示装置的像素元件的尺寸。 场成形电极与两个传感器电极横向间隔开与像素元件的尺寸相对应的距离。 处理系统耦合到传感器电极和场成形电极。 处理系统被配置为在第一处理模式中，将发射机信号驱动到传感器电极的第一传感器电极上，并且接收由传感器电极的第一传感器电极组成的结果信号，其包括对应于发射机信号的效应。

公开(公告)号：US20150042600A1

公开(公告)日：2015-02-12

申请号：US14137692

申请日：2013-12-20

Applicant: Synaptics Incorporated

Inventor： Jeffrey LUKANC ,  Stephen L. MOREIN ,  Christopher A. LUDDEN ,  Greg P. SEMERARO ,  Joseph Kurth REYNOLDS ,  Petr SHEPELEV ,  Thomas MACKIN

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04112

Abstract: An electrode matrix that is used for capacitive sensing may be integrated into a display panel of an input device. In one embodiment, source drivers may be mounted on the display panel which drive the display signals and capacitive sensing signals into the display panel. In one embodiment, the capacitive sensing signals may be routed on traces or lines that are interleaved on the same layer as the source lines used for setting a voltage on the pixels in the display panel during display updating. Using the interleaved traces, the source drivers may drive the capacitive sensing signals in parallel to a plurality of the electrodes in the matrix in a predefined pattern that spans one or more sensing cycles.

Abstract translation: 用于电容感测的电极矩阵可以集成到输入装置的显示面板中。 在一个实施例中，源驱动器可以安装在显示面板上，其将显示信号和电容感测信号驱动到显示面板中。 在一个实施例中，电容感测信号可以在与用于在显示更新期间在显示面板中的像素上设置电压的源线相交叠的迹线或线路上布线。 使用交错迹线，源驱动器可以以跨越一个或多个感测周期的预定模式来驱动平行于矩阵中的多个电极的电容感测信号。

公开(公告)号：US20150042599A1

公开(公告)日：2015-02-12

申请号：US14137581

申请日：2013-12-20

Applicant: Synaptics Incorporated

Inventor： Jeffrey LUKANC ,  Stephen L. MOREIN ,  Christopher A. LUDDEN ,  Greg P. SEMERARO ,  Joseph Kurth REYNOLDS ,  Petr SHEPELEV

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04112

Abstract: An electrode matrix that is used for capacitive sensing may be integrated into a display panel of an input device. In one embodiment, source drivers may be mounted on the display panel which drive the display signals and capacitive sensing signals into the display panel. In one embodiment, the capacitive sensing signals may be routed on wires or lines that are interleaved on the same layer as the source lines used for setting a voltage on the pixels in the display panel during display updating. Using the interleaved wires, the source drivers may drive the capacitive sensing signals in parallel to a plurality of the electrodes in the matrix in a predefined pattern that spans one or more touch cycles.

Abstract translation: 用于电容感测的电极矩阵可以集成到输入装置的显示面板中。 在一个实施例中，源驱动器可以安装在显示面板上，其将显示信号和电容感测信号驱动到显示面板中。 在一个实施例中，电容感测信号可以在与用于在显示更新期间在显示面板中的像素上设置电压的源线相交叠的线或线上布线。 使用交错的线，源驱动器可以以跨越一个或多个触摸周期的预定义模式来驱动平行于矩阵中的多个电极的电容感测信号。