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1.发明申请公开(公告)号：US20190324581A1
公开(公告)日：2019-10-24
申请号：US16220128
申请日：2018-12-14
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Chih Jen CHENG , Yuzhen GUO , Haisheng WANG , Xiaoliang DING , Pengpeng WANG , Yingming LIU , Yanling HAN , Bo CHEN
Abstract: A signal extraction circuit includes: a first storage sub-circuit configured to receive a first signal including superimposed first touch signal and piezoelectric signal; a second storage sub-circuit configured to receive a second signal including superimposed second touch signal and piezoelectric signal, a phase of the second touch signal being opposite to a phase of the first touch signal; and an output sub-circuit configured to output the piezoelectric signals according to the first signal and the second signal during a third time period.
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Patent Agency Ranking
2.发明申请公开(公告)号：US20210210964A1
公开(公告)日：2021-07-08
申请号：US16766196
申请日：2019-12-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xueyou CAO , Xiaoliang DING , Haisheng WANG , Yunke QIN , Pengpeng WANG , Bo CHEN , Ping ZHANG , Likai DENG , Wenjuan WANG
Abstract: A photoelectric conversion circuit and a driving method thereof, a photosensitive device and a display device are disclosed. The photoelectric conversion circuit includes a photosensitive circuit, a detection circuit, and a charging circuit, and the photosensitive circuit is connected to the detection circuit and the charging circuit respectively. The photosensitive circuit is configured to convert an optical signal into an electric signal, output the electric signal to the detection circuit in a first state for detection of the optical signal and output the electric signal to the charging circuit in a second state for charging.
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公开(公告)号：US20200348818A1
公开(公告)日：2020-11-05
申请号：US16552193
申请日：2019-08-27
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiaoliang DING , Haisheng WANG , Yingming LIU , Xiaochuan CHEN , Bo CHEN , Feiteng LIU , Wenhui LI
Abstract: The present disclosure provides a sensor pixel, an ultrasonic sensor, an OLED display panel and an OLED display device, in which the sensor pixel includes a base substrate, a piezoelectric transducer and a sensor pixel circuit arranged on the base substrate; the energy sensor is connected to a first signal input terminal and the first node; the sensor pixel circuit includes a signal node control subcircuit for controlling the first node according to a signal of the reset signal terminal and a signal of the second signal input terminal, a drive subcircuit for providing a detection signal to the second node under the control of a signal of the first node, and a read subcircuit for providing a signal of the second node to the signal read line under the control of the read signal terminal.
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公开(公告)号：US20210232789A1
公开(公告)日：2021-07-29
申请号：US16964192
申请日：2020-02-05
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiaoliang DING , Haisheng WANG , Yingming LIU , Bo CHEN , Pengpeng WANG
Abstract: The present disclosure provides an ultrasonic sensor pixel circuit, a driving method thereof and a display panel. The ultrasonic sensor pixel circuit includes a detection module, of which a first terminal is connected with an ultrasonic sensing unit and a second terminal is connected with a first signal terminal, and the detection module is configured to generate a detection voltage according to an electric signal output from the ultrasonic sensing unit under control of the first signal terminal; an output module, of which a first terminal is connected with a third terminal of the detection module and a second terminal is connected with a read line, and the output module is configured to generate an output signal according to the detection voltage and provide the output signal to the read line.
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公开(公告)号：US20200175245A1
公开(公告)日：2020-06-04
申请号：US16622557
申请日：2019-05-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaoliang DING , Xue DONG , Haisheng WANG , Yingming LIU , Wei LIU , Jiabin WANG , Yangbing LI , Pengpeng WANG , Ping ZHANG , Likai DENG , Bo CHEN
Abstract: The present disclosure provides a fingerprint detection device and method. The fingerprint detection device includes a detection substrate and a signal converter. The detection substrate includes pixels arranged in rows and columns. Each pixel includes a sensing circuit configured to receive an optical signal and output a sensing electrical signal according to the received optical signal. The signal converter includes A/D converters each coupled to one column of sensing circuits. The fingerprint detection device further includes a control circuit coupled to the sensing circuits and the A/D converters and configured to obtain common mode component of sensing electrical signals output by sensing circuits of at least part of the pixels and provide information about the common mode component to the A/D converters. The A/D converter is configured to perform analog-to-digital conversion on difference between the sensing electrical signal from corresponding sensing circuit and the common mode signal.
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6.发明申请公开(公告)号：US20210333903A1
公开(公告)日：2021-10-28
申请号：US16605204
申请日：2019-05-13
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiaoliang DING , Haisheng WANG , Yingming LIU , Bo CHEN , Yanling HAN
Abstract: Embodiments of the present application provide acoustic wave signal reading apparatuses, acoustic wave signal reading circuits, and control methods thereof related to the field of acoustic wave signal reading technology. One embodiment of an acoustic wave signal reading circuit comprises: an acoustic wave receiver, a reset control circuit, a function circuit, and an output circuit; an acoustic wave receiver is configured to convert a received acoustic wave signal into an electrical signal and outputs the electrical signal to a first node; the reset control circuit outputs a voltage to the first node; the function circuit switches states based on the first node, a signal terminal, and a voltage terminal, and outputs a voltage to a second node to reset the second node or amplifies a potential of the first node and outputs to the amplified potential to the second node depending on a state of the function circuit.
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