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1.发明申请公开(公告)号：US20190272406A1
公开(公告)日：2019-09-05
申请号：US16414792
申请日：2019-05-17
发明人： Shing-Chia CHEN , Yaw-Guang CHANG , Wei-Ting SUEN
IPC分类号： G06K9/00
摘要： The fingerprint sensing circuit includes sensing units and a sensing circuit. The sensing units are arranged as columns and rows. Each of the sensing units includes a sensing electrode. The sensing circuit is electrically connected to the sensing electrodes in at least two first sensing units of the sensing units in a first period to obtain a first fingerprint grey level.
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公开(公告)号：US20160103514A1
公开(公告)日：2016-04-14
申请号：US14513872
申请日：2014-10-14
发明人： Jia-Ming HE , Yaw-Guang CHANG
IPC分类号： G06F3/044
CPC分类号： G06F3/044 , G06F3/0416
摘要： A controlling method and a touch panel are provided. The touch panel includes a panel capacitor, a first circuit, a first capacitor, a second circuit and a controlling circuit. The first capacitor is coupled to the panel capacitor. The first circuit transmits a scan signal to the panel capacitor. The second circuit transmits an inverting signal to the first capacitor. The inverting signal is synchronized with the scan signal, a frequency of the inverting signal is identical to a frequency of the scan signal, and the inverting signal is phase-inverted from the scan signal. The controlling circuit outputs a touch signal in response to a voltage at a terminal of the panel capacitor, in which the touch signal is configured to estimate a capacitance of the panel capacitor. Accordingly, a resolution requirement of the controlling circuit is reduced.
摘要翻译： 提供控制方法和触摸面板。 触摸面板包括面板电容器，第一电路，第一电容器，第二电路和控制电路。 第一电容器耦合到面板电容器。 第一电路将扫描信号发送到面板电容器。 第二电路将反相信号发送到第一电容器。 反相信号与扫描信号同步，反相信号的频率与扫描信号的频率相同，反相信号与扫描信号相反。 控制电路响应于面板电容器的端子处的电压输出触摸信号，其中触摸信号被配置为估计面板电容器的电容。 因此，控制电路的分辨率要求降低。
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3.发明申请TOUCH DISPLAY DEVICE with multiple alternating touch periods and display periods per frame 审中-公开触摸显示设备，具有多个交替触摸周期和每帧显示周期公开(公告)号：US20160034060A1
公开(公告)日：2016-02-04
申请号：US14449136
申请日：2014-07-31
发明人： Yu-Feng LIN , Yaw-Guang CHANG
IPC分类号： G06F3/041
CPC分类号： G06F3/0416 , G06F3/0412
摘要： The touch display device includes a display panel and a panel driver. The display panel displays a video and to receive a touch operation. The panel driver includes a timing controller and a memory module. The timing controller generates a clock signal, each cycle of the clock signal including N display periods and N touch periods, the total time of the N display periods corresponding to a frame of a video signal, and the total time of the N display periods and the N touch periods corresponding to one cycle of the video signal, in which N is a positive integer. The panel driver alternately drives the panel to display the video during each of the N display periods and to detect the touch operation during each of the N touch periods. The memory module sequentially stores the image data of the video signal according to the clock signal.
摘要翻译： 触摸显示装置包括显示面板和面板驱动器。 显示面板显示视频并接收触摸操作。 面板驱动器包括时序控制器和存储器模块。 定时控制器产生时钟信号，时钟信号的每个周期包括N个显示周期和N个触摸周期，对应于视频信号的帧的N个显示周期的总时间和N个显示周期的总时间，以及 N个触摸周期对应于视频信号的一个周期，其中N是正整数。 面板驱动器交替地驱动面板以在N个显示周期的每一个期间显示视频，并且在每个N个触摸周期期间检测触摸操作。 存储器模块根据时钟信号顺序地存储视频信号的图像数据。
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公开(公告)号：US20140306920A1
公开(公告)日：2014-10-16
申请号：US13859868
申请日：2013-04-10
发明人： Jui-Ni LEE , Sheng-Fan YANG , Yaw-Guang CHANG , Shen-Feng TAI , Cheng-Feng HSIEH
IPC分类号： G06F3/044
CPC分类号： G06F3/044
摘要： A touch screen structure for receiving and processing touch signal is disclosed, in which the touch screen structure includes a substrate, a plurality of conductive patterns, a plurality of first routing traces, and a plurality of second routing traces. The conductive patterns are disposed on the substrate, in which each of the conductive patterns has a first side and a second side disposed opposite to the first side. The first routing traces are disposed on the substrate, in which the first routing traces are electrically connected to the first sides of the conductive patterns. The second routing traces are disposed on the substrate, in which the second routing traces are electrically connected to the second sides of the conductive patterns.
摘要翻译： 公开了一种用于接收和处理触摸信号的触摸屏结构，其中触摸屏结构包括基板，多个导电图案，多个第一布线迹线和多个第二布线迹线。 导电图案设置在基板上，其中每个导电图案具有与第一侧相对设置的第一侧和第二侧。 第一路由迹线设置在基板上，其中第一路由迹线电连接到导电图案的第一侧。 第二布线迹线设置在基板上，其中第二布线迹线电连接到导电图案的第二面。
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公开(公告)号：US20240275393A1
公开(公告)日：2024-08-15
申请号：US18168544
申请日：2023-02-13
发明人： Jia-Ming HE , Yaw-Guang CHANG , Yu-Han CHEN
CPC分类号： H03L7/0992 , H03L7/101 , H03L7/24
摘要： The invention provides a power system for monitoring a working environment of a monitored circuit and adjusting a working voltage of the monitored circuit includes: a power circuit, a voltage-controlled oscillator and a counter. The power circuit is configured to output the working voltage to the monitored circuit through a power supply path. The voltage-controlled oscillator is disposed in or around the monitored circuit and is electrically connected to the power supply path and a ground path to which the monitored circuit is electrically connected, and is configured to output an oscillation frequency in accordance with a signal variation on the power supply path and the ground path. The counter is electrically connected to the voltage-controlled oscillator and is configured to generate a counting number signal in accordance with the oscillation frequency and a synchronizing signal, thereby adjusting the working voltage outputted to the monitored circuit.
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公开(公告)号：US20230236690A1
公开(公告)日：2023-07-27
申请号：US18156386
申请日：2023-01-19
发明人： Yaw-Guang CHANG , Pei Yao CHANG , De Wei SHEN , Yi Wen WANG
CPC分类号： G06F3/0412 , G06F3/147 , G06F3/044
摘要： A driving signal processing method for a large touch display integrated (LTDI) system is provided. The LTDI system includes plural LTDI chips that are concatenated. The LTDI chips include a master LTDI chip and plural slave LTDI chips. The driving signal processing method includes: receiving, by the LTDI chips, display data from a timing controller; and dispersedly outputting, by the master LTDI chip and at least one of the slave LTDI chips, M gate control signals respectively corresponding to M gate lines of a display panel of the LTDI system according to the display data during the display stage of the display panel.
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公开(公告)号：US20210240288A1
公开(公告)日：2021-08-05
申请号：US17026296
申请日：2020-09-20
摘要： A touch panel includes a cover lens located at top of the touch panel, plural touch sensor units, and plural sensing channels. The touch sensor units are disposed below the cover lens and arranged in rows and columns. The touch sensor units are disposed on the sensing channels. Each of touch sensor units acquires a sensing magnitude for identifying a position of the cover lens that touched by the stylus according to signals outputted by the sensing channels. The sensing magnitude of one of the touch sensor units is composed of the signals of the adjacent sensing channels located within a vertical projection of the one of the touch sensor units.
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公开(公告)号：US20180196544A1
公开(公告)日：2018-07-12
申请号：US15485223
申请日：2017-04-11
发明人： Hui-Min WANG , Yaw-Guang CHANG
IPC分类号： G06F3/044 , G06F3/0354 , G06F3/041
CPC分类号： G06F3/044 , G06F3/03545 , G06F3/0412 , G06F3/0416
摘要： A touch display apparatus is provided, which includes a panel and a circuit. The panel is configured for display, active stylus sensing and touch sensing, which includes a sensing layer having sensing blocks arranged in an array of rows and columns. The circuit is coupled to the panel, and is configured to drive the panel to perform display and active stylus sensing with respect to a first reference voltage at a first stage of a frame period and to drive the panel to perform touch sensing with respect to a second reference voltage at a second stage of the frame period.
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公开(公告)号：US20210318782A1
公开(公告)日：2021-10-14
申请号：US16984108
申请日：2020-08-03
发明人： Jia-Ming HE , Yaw-Guang CHANG
IPC分类号： G06F3/044 , G06F3/0354 , G06K9/00
摘要： An apparatus integrated with fingerprint recognition and touch detection is provided. The apparatus includes a touchpad and a controller IC. The touchpad has a touch area for recognizing a touch event and a fingerprint area for recognizing a fingerprint and the touch event. The fingerprint area includes TX lines of a first group crossing RX lines of a first group. The touch area includes TX lines of the first group and a second group crossing RX lines of the first group and a second group. When the apparatus is operated in a fingerprint sensing mode, the controller IC supplies a driving signal to the TX lines of the first group. When the apparatus is operated in a touch sensing mode, the controller IC supplies the driving signal to the TX lines of the second group and a portion of the TX lines of the first group.
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公开(公告)号：US20210103357A1
公开(公告)日：2021-04-08
申请号：US16712967
申请日：2019-12-12
发明人： Yaw-Guang CHANG , Guan-Ying HUANG , Chang-Hui LIN
摘要： A driving method for reducing EMI of a touch display panel is provided. The touch display panel includes a common electrode layer. The driving method includes: applying a direct current (DC) voltage to the common electrode layer during a display period of the touch display panel; and applying a touch sensing signal to the common electrode layer during a touch sensing period of the touch display panel. The waveform of the touch sensing signal is a triangle wave, a sine wave, or the sine wave truncated by a window function.
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