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公开(公告)号：US20150091587A1
公开(公告)日：2015-04-02
申请号：US14042673
申请日：2013-09-30
IPC分类号： G01R27/26
CPC分类号： G06F3/044 , G06F3/0412 , G06F3/0416
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20150042600A1
公开(公告)日：2015-02-12
申请号：US14137692
申请日：2013-12-20
发明人： Jeffrey LUKANC , Stephen L. MOREIN , Christopher A. LUDDEN , Greg P. SEMERARO , Joseph Kurth REYNOLDS , Petr SHEPELEV , Thomas MACKIN
CPC分类号： G06F3/0412 , G02F1/13338 , G06F3/0416 , G06F3/044 , G06F2203/04112
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20150042599A1
公开(公告)日：2015-02-12
申请号：US14137581
申请日：2013-12-20
发明人： Jeffrey LUKANC , Stephen L. MOREIN , Christopher A. LUDDEN , Greg P. SEMERARO , Joseph Kurth REYNOLDS , Petr SHEPELEV
CPC分类号： G06F3/0412 , G02F1/13338 , G06F3/0416 , G06F3/044 , G06F2203/04112
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20200150813A1
公开(公告)日：2020-05-14
申请号：US16189486
申请日：2018-11-13
摘要： A system and method for input sensing comprises a display device having at least one piezoresistive sensing transistor. During a first period, a first resulting signal is received with a first data line by driving a first piezoresistive sensing transistor of a first subpixel of the display device with a first select signal. The first resulting signal corresponds to a change in resistance of the first piezoresistive sensing transistor. Further, at least one of force information and positional information associated with an input object may be determined at least partially based on the change in resistance.
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公开(公告)号：US20190324573A1
公开(公告)日：2019-10-24
申请号：US15961570
申请日：2018-04-24
发明人： Tetsuo TANEMURA , Petr SHEPELEV
IPC分类号： G06F3/044 , G06F3/0354 , G06F3/0488
摘要： A capacitive sensing device has a first plurality of sensor electrodes, and a second plurality of sensor electrodes overlapping the first plurality of sensor electrodes. A first sensor electrode of the second plurality of electrodes overlaps a first subset of the first plurality of electrodes and comprises apertures disposed according to first codes. The first codes comprise first and second coefficients and along one of the first plurality of sensor electrodes. Each aperture may correspond to one of the first coefficients. The capacitive sensing device further comprises a processing system coupled to the first and second plurality of sensor electrodes. The processing system may be configured to receive resulting signals with the second plurality of sensor electrodes to determine positional information for an input object within a sensing region of the capacitive sensing device.
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56.发明申请公开(公告)号：US20170285859A1
公开(公告)日：2017-10-05
申请号：US15085900
申请日：2016-03-30
CPC分类号： G06F3/0418 , G06F3/0412 , G06F3/0416 , G06F3/044 , G06F2203/04108
摘要： An input device, system, and processing system are disclosed for a display device with an integrated sensing device. The input device comprises a plurality of sensor electrodes, and a processing system coupled with the plurality of sensor electrodes. The processing system is configured to determine one or more low-noise periods associated with display update timing of the display device, and process, during the determined one or more low-noise periods, resulting signals received from the plurality of sensor electrodes.
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公开(公告)号：US20170255294A1
公开(公告)日：2017-09-07
申请号：US15062865
申请日：2016-03-07
发明人： Petr SHEPELEV
CPC分类号： G06F3/044 , G06F3/0412 , G06F3/0418
摘要： This disclosure generally provides an input device with a matrix sensor that includes a plurality of sensor electrodes arranged on a common surface or plane. Moreover, the input device includes routing traces that electrically couple the sensor electrodes to analog front ends (AFEs). Because of the spatial relationships between these electrical components, the sensor electrodes can be categorized into groups where each of the sensors in the group is affected by a common noise source. The capacitive measurements for the sensor electrodes in each of the groups are compared to a touch threshold to determine if an input object (e.g., finger or stylus) is proximate to the sensor electrodes. If the capacitive measurements are below the touch threshold, the input device calculates an offset value that compensates for the noise. After the offset is applied, the compensated capacitive measurements are used to generate a capacitive image.
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公开(公告)号：US20170243550A1
公开(公告)日：2017-08-24
申请号：US15185064
申请日：2016-06-17
发明人： Petr SHEPELEV
CPC分类号： G09G3/3607 , G09G3/2003 , G09G3/3611 , G09G5/008 , G09G2300/0452 , G09G2310/061 , G09G2310/08 , G09G2320/0233 , G09G2320/0242 , G09G2320/0247 , G09G2320/0257
摘要： A display device can use clock dithering to spread the frequency spectrum of the clock signal (and the signals derived therefrom) to mitigate interference with other components or systems in a host device. However, dithering the clock signal can introduce display artifacts into the display device. For example, lines or rows in the display may flicker, the brightness of display lines may be non-uniform, or color shifts in displayed pixels. To reduce display artifacts, the embodiments herein synchronize clock dithering to a display update event. That is, the display device varies a parameter of clock dithering so that the dithering is synchronized to the display update event. In another embodiment, the clock dithering is set according to the rate at which display lines or sub-pixels are updated. In another embodiment, clock dithering is synchronized to a display frame update period.
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59.发明申请公开(公告)号：US20170185198A1
公开(公告)日：2017-06-29
申请号：US14983230
申请日：2015-12-29
发明人： Petr SHEPELEV
摘要： Embodiments described herein include a method, processing system, and input device having a display device with an integrated sensing device. The method comprises selecting, using first gate driver circuitry, a first subset of a first plurality of gate electrodes of the display device for performing display updating during a first period. The method further comprises selecting, using second gate driver circuitry, a first subset of a second plurality of gate electrodes of the display device for display updating during a second period. The method further comprises operating, during a third period between the first and second periods, at least a first sensor electrode of a plurality of sensor electrodes for capacitive sensing.
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公开(公告)号：US20170090615A1
公开(公告)日：2017-03-30
申请号：US14871432
申请日：2015-09-30
IPC分类号： G06F3/044
CPC分类号： G06F3/044 , G06F3/0412 , G06F3/0418 , G06F2203/04107 , G09G3/3655 , G09G3/3677 , G09G3/3688 , G09G2320/0219 , G09G2330/021 , G09G2354/00
摘要： Embodiments described herein include an input device, processing system, and method of performing capacitive sensing using an input device comprising a first plurality of sensor electrodes, a second plurality of sensor electrodes, and a plurality of display electrodes. The method comprises, during a first period, driving the first plurality of sensor electrodes with a first absolute capacitive sensing signal to receive first resulting signals, and driving the second plurality of sensor electrodes and the plurality of display electrodes with a first guarding signal. Each of the first plurality of sensor electrodes comprises at least one common electrode of a display, and wherein each common electrode is configured to be driven for display updating and for capacitive sensing.
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