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    Current amplification circuitry and driving method thereof, and fingerprint detection device
    123.
    发明授权
    Current amplification circuitry and driving method thereof, and fingerprint detection device 有权

    公开(公告)号：US10979005B2

    公开(公告)日：2021-04-13

    申请号：US16332246

    申请日：2018-05-31

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xiaoliang Ding ,  Haisheng Wang ,  Yingming Liu ,  Xueyou Cao ,  Ping Zhang ,  Yanling Han

    IPC: H03F3/08 ,  G06K9/00

    Abstract: Embodiments of the present disclosure provide a current amplification circuitry and a driving method thereof, and a fingerprint detection device. The current amplification circuitry includes a voltage control circuit, a plurality of first current amplification circuits, and a second current amplification circuit. The voltage control circuit provides a voltage control signal to the plurality of first current amplification circuits. The first current amplification circuit includes a current mirror, and the current mirror is coupled to a voltage input terminal, the voltage control circuit, and a first input terminal of the second current amplification circuit. The first current amplification circuit amplifies a current from the voltage input terminal according to the voltage control signal provided by the voltage control circuit, and provides the amplified current to the second current amplification circuit. The second current amplification circuit is coupled to the voltage input terminal via a second input terminal and amplifies the amplified current.

    Sensor pixel, ultrasonic sensor, OLED display panel, and OLED display device
    124.
    发明授权
    Sensor pixel, ultrasonic sensor, OLED display panel, and OLED display device 有权

    公开(公告)号：US10942600B2

    公开(公告)日：2021-03-09

    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

    IPC: G06F3/041 ,  G06K9/00 ,  H01L27/32

    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.

    Optical measurement module, optical measurement circuit, and electronic device
    125.
    发明授权
    Optical measurement module, optical measurement circuit, and electronic device 有权

    公开(公告)号：US10935422B2

    公开(公告)日：2021-03-02

    申请号：US16315561

    申请日：2018-04-09

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Haisheng Wang ,  Xiaoliang Ding ,  Chihjen Cheng ,  Yanling Han ,  Wei Liu ,  Ping Zhang ,  Pengpeng Wang ,  Xueyou Cao ,  Yanan Jia

    IPC: G01J1/42 ,  G01J1/44

    Abstract: The present disclosure provides an optical measurement module which includes a detection sub-circuit, a comparison sub-circuit and a blocking layer, the blocking layer includes at least one blocking element, the detection sub-circuit comprises a first photosensitive element, and the detection sub-circuit is configured to output a detection signal according to light irradiation received by the first photosensitive element and an input signal of the detection sub-circuit; the comparison sub-circuit includes a second photosensitive element, the at least one blocking element in the blocking layer covers at least the second photosensitive element, the comparison sub-circuit is configured to output a comparison signal according to an input signal of the comparison sub-circuit; wherein the first photosensitive element and the second photosensitive element have a same structure, so that they have a same response to light irradiation and a same response to environment.

    PIXEL DRIVING CIRCUIT, DRIVING METHOD THEREOF, AND DISPLAY DEVICE
    126.
    发明申请
    PIXEL DRIVING CIRCUIT, DRIVING METHOD THEREOF, AND DISPLAY DEVICE 有权

    公开(公告)号：US20210012710A1

    公开(公告)日：2021-01-14

    申请号：US16345117

    申请日：2018-08-24

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xiaoliang Ding ,  Xue Dong ,  Haisheng Wang ,  Yingming Liu ,  Shengji Yang ,  Pengpeng Wang

    IPC: G09G3/3233

    Abstract: The present disclosure provides a pixel driving circuit, a driving method thereof, and a display device. The pixel driving circuit includes a current generating sub-circuit coupled to a control node and a first power signal terminal. The current generating sub-circuit is configured to output a preset current to the control node. The pixel driving circuit includes a source following sub-circuit coupled to a data signal terminal, a second power signal terminal, and the control node. The source following sub-circuit is configured to make a voltage of the control node change to follow a voltage of a data signal under the action of the preset current. The pixel driving circuit includes a light emitting element connected between the control node and the first power signal terminal to emit light under the action of the voltage of the control node.

    CMOS image sensor, pixel circuit and driving method thereof
    128.
    发明授权
    CMOS image sensor, pixel circuit and driving method thereof 有权

    公开(公告)号：US10805565B2

    公开(公告)日：2020-10-13

    申请号：US16078626

    申请日：2017-10-20

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Chih Jen Cheng ,  Xiaoliang Ding

    IPC: H04N5/3745 ,  H04N5/225 ,  H04N5/376 ,  H04N5/374 ,  H04N5/378 ,  H01L27/146

    Abstract: Embodiments of the present disclosure provide a CMOS image sensor, and a pixel circuit and a driving method thereof. The pixel circuit includes: a collection circuit configure to collect an incident light and convert a collected optical signal into an electric signal; a source follower circuit configured to output the received electric signal to a collection signal output terminal under the control of scan lines; and a voltage conversion circuit, configured to be connected to the collection signal output terminal through a read signal line, convert a voltage at the collection signal output terminal to an output voltage, and output the output voltage at a voltage output terminal, wherein the output voltage is within an operating voltage range of an image processor.

    Display panel, method for manufacturing the same and display device
    129.
    发明授权
    Display panel, method for manufacturing the same and display device 有权

    公开(公告)号：US10768737B2

    公开(公告)日：2020-09-08

    申请号：US15552154

    申请日：2017-02-03

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Yuzhen Guo ,  Xue Dong ,  Haisheng Wang ,  Chun Wei Wu ,  Yingming Liu ,  Changfeng Li ,  Yanan Jia ,  Xiaoliang Ding

    IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1343

    Abstract: The present disclosure relates to a display panel, a method for manufacturing the same and a display device. The display panel includes: a substrate; pixel units; and a force sensing array, the force sensing array comprises lower leads, lower sensing electrodes, a piezoelectric layer, upper sensing electrodes and upper leads; wherein lower sensing electrodes and upper sensing electrodes are aligned with each other one by one, and arranged in an array, and each of lower sensing electrodes and each of upper sensing electrodes form a force sensing unit with the piezoelectric layer therebetween; and wherein each of the plurality of lower leads and each column of the force sensing units are aligned with each other one by one, and each of the plurality of upper leads and each row of the force sensing units are also aligned with each other one by one.

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