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    Fingerprint Detecting Device, Fingerprint Detecting Circuit and Driving Method Thereof, and Display Apparatus
    141.
    发明申请
    Fingerprint Detecting Device, Fingerprint Detecting Circuit and Driving Method Thereof, and Display Apparatus 有权

    公开(公告)号：US20210342564A1

    公开(公告)日：2021-11-04

    申请号：US16316789

    申请日：2018-04-12

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xiaoliang DING ,  Haisheng WANG ,  Yingming LIU ,  ChihJen CHENG ,  Wei LIU ,  Xueyou CAO ,  Pengpeng WANG

    IPC: G06K9/00

    Abstract: The present disclosure provides a fingerprint detecting device, including: a photosensitive sensing component, a first electrode of which is coupled to a reference signal terminal, a second electrode of which is coupled to a pull-down node; a reset component, coupled to a reset terminal and the pull-down node, configured to reset the pull-down node in a first stage; a voltage output component, coupled to the pull-down node, a selection terminal and an output terminal of the fingerprint detecting device, configured to output a voltage signal to the output terminal of the fingerprint detecting device according to the potential of the pull-down node, the first stage to a second stage, an amount of change in a voltage signal output to the output terminal of the fingerprint detecting device is positively correlated with an amount of change in the potential of the pull-down node.

    Touch Circuit, Touch Panel, Display Panel and Display Device
    142.
    发明申请
    Touch Circuit, Touch Panel, Display Panel and Display Device 有权

    公开(公告)号：US20210223928A1

    公开(公告)日：2021-07-22

    申请号：US16303961

    申请日：2018-04-03

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xueyou CAO ,  Haisheng WANG ,  Xiaoliang DING ,  Chihjen CHENG ,  Yuzhen GUO ,  Yanling HAN ,  Wei LIU ,  Pengpeng WANG ,  Ping ZHANG

    IPC: G06F3/041

    Abstract: Provided is a touch circuit including first and second voltage input terminals, a pressure sensing circuit and an output circuit, the first voltage input terminal is configured to input a first voltage signal, the second voltage input terminal is configured to input a second voltage signal, the first voltage signal is different from the second voltage signal, an input terminal of the pressure sensing circuit is coupled to the first voltage input terminal, an output terminal of the pressure sensing circuit is coupled to an input terminal of the output circuit, a control terminal of the output circuit is configured to receive a control signal, and the output circuit is configured to control on/off state between the input terminal of the output circuit and the output terminal of the output circuit according to the control signal. A touch panel, a display panel and a display device are also provided.

    ACTIVE PIXEL SENSOR AND DRIVING METHOD THEREOF, IMAGER AND ELECTRONIC DEVICE
    145.
    发明申请
    ACTIVE PIXEL SENSOR AND DRIVING METHOD THEREOF, IMAGER AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20190281242A1

    公开(公告)日：2019-09-12

    申请号：US16071623

    申请日：2018-01-30

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Chih Jen CHENG ,  Pengpeng WANG ,  Wei LIU ,  Xiaoliang DING ,  Rui XU ,  Changfeng LI

    IPC: H04N5/374 ,  H04N5/378

    Abstract: An active pixel sensor, a driving method thereof, an imager and an electronic device are disclosed. The active pixel sensor includes: a photosensitive element, configured to convert a received light signal into an electrical signal; a follower circuit, connected with the photosensitive element and configured to convert the electrical signal into an output voltage, the follower circuit including a source follower transistor; and an adjustment circuit, connected with the follower circuit and configured to collect the output voltage of the follower circuit and to adjust a bias current of the source follower transistor according to the output voltage, so as to adjust the output voltage to a preset range.

    PIXEL UNIT CIRCUIT, PIXEL CIRCUIT, DRIVING METHOD AND DISPLAY DEVICE
    147.
    发明申请
    PIXEL UNIT CIRCUIT, PIXEL CIRCUIT, DRIVING METHOD AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20190251905A1

    公开(公告)日：2019-08-15

    申请号：US16335024

    申请日：2018-06-21

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Shengji YANG ,  Xue DONG ,  Xiaochuan CHEN ,  Hui WANG ,  Yanming WANG ,  Minghua XUAN ,  Pengcheng LU ,  Wei LIU ,  Kuanta HUANG

    IPC: G09G3/3258

    Abstract: The present disclosure provides a pixel unit circuit, a pixel circuit, a driving method and a display device. The pixel unit circuit includes: a light-emitting component with a first terminal coupled with a first voltage input terminal; a storage capacitor module; a driver transistor; a light-emitting control circuit with a control terminal coupled with a light-emitting control line, a first terminal coupled with a second voltage input terminal and a second terminal coupled with a second electrode of the driver transistor, where the light-emitting control circuit is to, under control of the light-emitting control line, control whether the second electrode of the driver transistor is coupled with the second voltage input terminal; a charging compensation control circuit configured to, under control of a gate line, control whether a gate electrode of the driver transistor is coupled with a data line; and a voltage control circuit coupled with the first voltage input terminal and configured to control a voltage value of a first voltage input to the first voltage input terminal.

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