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公开(公告)号：US20210225226A1
公开(公告)日：2021-07-22
申请号：US16082071
申请日：2018-01-24
发明人： Shuai CHEN , Zhi ZHANG , Xiuzhu TANG , Heecheol KIM , Xing DONG , Zhenguo TIAN , Shuang HU , Taoliang TANG , Jingpeng ZHAO
IPC分类号： G09G3/20
摘要： A scan driving circuit and a driving method thereof, and a display device are disclosed. The scan driving circuit includes: a control circuit, a scanning circuit group and a first processing circuit group. The control circuit is configured to generate and output a keyword signal to the first processing circuit group, to control a scan order of respective scanning circuits in the scanning circuit group; the first processing circuit group is configured to generate a scan enable signal according to the keyword signal, and output the scan enable signal to a scanning circuit corresponding to the keyword signal in the scanning circuit group.
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公开(公告)号：US20220253192A1
公开(公告)日：2022-08-11
申请号：US17434956
申请日：2020-11-26
发明人： Shuang HU , Jingpeng ZHAO , Yajie BAI , Taoliang TANG , Wentao ZHU , Hongxin PAN , Xing DONG , Rui LIU
IPC分类号： G06F3/041
摘要： Provided are a driving method, a gate drive unit and a display touch device. The driving method is applied to the gate drive unit in the display touch device. The gate drive unit includes at least one pull-down circuit. The pull-down circuit is coupled with a pull-up node and a pull-down voltage terminal, and is configured to control connection or disconnection between the pull-up node and the pull-down voltage terminal; one frame of image display time includes a display phase and a touch phase that are alternately set, and at least one of the touch phase is set between two adjacent display phases. The driving method includes: during the touch phase, controlling, by the at least one pull-down circuit, the disconnection between the pull-up node and the pull-down voltage terminal. The problem of a screen flashing phenomenon of existing display touch devices during the touch phase is solved.
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公开(公告)号：US20210233469A1
公开(公告)日：2021-07-29
申请号：US17053589
申请日：2020-04-08
发明人： Shuai CHEN , Xiuzhu TANG , Jianfeng YUAN , Hailong WU , Xing DONG , Zhenguo TIAN , Lijun XIONG , Xuebo LIANG , Xiaoke ZHOU , Jinjin CHEN , Tongguo MA
IPC分类号： G09G3/3233
摘要： Provided are a pixel driving circuit, a pixel driving method and a display panel. The pixel driving circuit includes: a driving circuit, a light emitting circuit, a storage circuit, a reset circuit, a light emitting control circuit and a writing compensation circuit; a first electrode of the storage circuit is coupled to a first node, a second electrode of the storage circuit is coupled to a second node; the reset circuit adjusts voltages of the first node and the second node; the writing compensation circuit writes a data signal of a data line terminal and a compensation data into the driving circuit through an adjustment of the storage circuit; the light emitting control circuit writes a display current, a magnitude of which is related only to the data signal and a voltage of the first voltage terminal, to the light emitting circuit by controlling the driving circuit.
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公开(公告)号：US20200082747A1
公开(公告)日：2020-03-12
申请号：US16610999
申请日：2018-11-05
发明人： Zhenguo TIAN , Shuang HU , Lijun XIONG , Shuai CHEN , Taoliang TANG , Xing DONG , Xuebo LIANG , Zhi ZHANG
摘要： A display driving circuit includes a control sub-circuit and a gate drive sub-circuit connected to the control sub-circuit. The control sub-circuit is configured to: receive an effective display data enable signal; determine whether the effective display data enable signal is lost; and control each stage of shift register in the gate drive sub-circuit to output a disabling signal via an output terminal of the shift register in response to determining that the effective display data enable signal is lost.
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公开(公告)号：US20190355433A1
公开(公告)日：2019-11-21
申请号：US16482870
申请日：2018-11-15
发明人： Xuebo LIANG , Zhi ZHANG , Xiuzhu TANG , Shuai CHEN , Jingpeng ZHAO , Xing DONG , Qian QIAN , Taoliang TANG , Lijun XIONG , Zhenguo TIAN , Shuang HU , Hui LI
摘要： A shift register unit, a gate drive circuit, a display device and a driving method are disclosed. A shift register unit includes an input circuit, a first node reset circuit, an output circuit and a touch noise reduction circuit. The input circuit is configured to control a level of a first node in response to an input signal; the first node reset circuit is configured to reset the first node in response to a reset signal; the output circuit is configured to output a driving signal to an output terminal under control of the level of the first node; and the touch noise reduction circuit is configured to reset the first node in response to a touch start signal.
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公开(公告)号：US20210358404A1
公开(公告)日：2021-11-18
申请号：US16332449
申请日：2018-09-11
发明人： Shuang HU , Tae Yup MIN , Zhi ZHANG , Shuai CHEN , Qian QIAN , Xiuzhu TANG , Zhenguo TIAN , Jingpeng ZHAO , Xing DONG , Taoliang TANG , Lijun XIONG
IPC分类号： G09G3/3233 , G09G3/3266 , G09G3/3275
摘要： A pixel driving circuit and a pixel driving method and a display device are provided. The pixel driving circuit includes a first switching element, a second switching element, a first compensation element, a second compensation element, a driving transistor, a capacitor, and a third switching element.
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公开(公告)号：US20210335301A1
公开(公告)日：2021-10-28
申请号：US16473858
申请日：2018-10-18
发明人： Xuebo LIANG , Zhi ZHANG , Xiuzhu TANG , Jingpeng ZHAO , Shuai CHEN , Xing DONG , Qian QIAN , Taoliang TANG , Lijun XIONG , Zhenguo TIAN , Shuang HU , Jian YANG
摘要： A gate drive circuit, a touch display device and a driving method are provided. The gate drive circuit includes a plurality of cascaded shift register units and a voltage stabilization circuit. Each of the plurality of cascaded shift register units includes a touch scanning control terminal; and the voltage stabilization circuit is connected to a first shift register unit and at least one second shift register unit after the first shift register unit, of the plurality of cascaded shift register units, and configured to compensate a level of a first node of the group of second shift register units in response to the touch scanning control signal.
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公开(公告)号：US20210150174A1
公开(公告)日：2021-05-20
申请号：US16642068
申请日：2019-01-29
发明人： Jianbo FU , Hailong WU , Yi DAN , Xing DONG , Yanlin HAN , Jiandong GUO
摘要： A display device and an operation method thereof are disclosed. The display device includes a display panel, a pressure sensor, a skin texture sensor, and a controller. The skin texture sensor and the pressure sensor are respectively coupled to the controller; the pressure sensor is configured to detect a pressing action on a display side of the display panel; the skin texture sensor is configured to detect a skin texture image of a user touching the display side of the display panel; and the controller is configured to awaken the skin texture sensor when the pressure sensor detects the pressing action. The display device reduces power consumption of the fingerprint detection.
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公开(公告)号：US20190066613A1
公开(公告)日：2019-02-28
申请号：US15767315
申请日：2017-10-17
发明人： Shuai CHEN , Zhi ZHANG , Cheng ZUO , Heecheol KIM , Taeyup MIN , Zhihui WANG , Xiaojun ZUO , Xing DONG , Wangjing BAI , Kangpeng DANG
IPC分类号： G09G3/36 , H03K17/687
摘要： The present disclosure relates to a discharging circuit and a driving method thereof, and a display device. The discharging circuit of the present disclosure includes a control circuit, a time delay circuit, a first discharging circuit and a second discharging circuit. The control circuit is configured to control potential of a control signal output terminal of the control circuit. The time delay circuit is configured to delay a switched-on time of the second discharging circuit. The first discharging circuit is configured to pull down a potential of a data signal terminal to a potential of a common voltage terminal, under control of a control signal output from the control circuit. The second discharging circuit is configured to release the potential of the common voltage terminal and the potential of the data signal terminal under the control of the time delay circuit.
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公开(公告)号：US20190057668A1
公开(公告)日：2019-02-21
申请号：US16006335
申请日：2018-06-12
发明人： Lijun XIONG , Zhi ZHANG , Heecheol KIM , Xiuzhu TANG , Shuai CHEN , Jingpeng ZHAO , Xing DONG , Xiaolong LIU , Gang CHEN , Yanli ZHAO
IPC分类号： G09G3/36 , G09G3/3266
CPC分类号： G09G3/3696 , G09G3/3266 , G09G3/3677 , G09G2310/0289 , G09G2310/08 , G09G2320/041 , G09G2330/021
摘要： The disclosure discloses a display drive circuit, a display device, and a method for driving the same, where the display drive circuit includes a control circuit arranged between a power supply management circuit and a level conversion circuit, and the control circuit is configured to boost a standard gate turn-on voltage signal provided by the power supply management circuit, and to generate and then output a higher gate turn-on voltage signal to the level conversion circuit, upon determining that an ambient temperature is below a set temperature, and/or an output of a gate drive circuit of a display panel is abnormal, so that the level conversion circuit generates and then outputs a corresponding gate drive signal at higher voltage.
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