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    Micro-Fluidic Substrate, Micro-Fluidic Structure and Driving Method Thereof
    31.
    发明申请
    Micro-Fluidic Substrate, Micro-Fluidic Structure and Driving Method Thereof 有权

    公开(公告)号：US20210060547A1

    公开(公告)日：2021-03-04

    申请号：US16633016

    申请日：2019-07-24

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Yingming LIU ,  Xue DONG ,  Haisheng WANG ,  Xiaochuan CHEN ,  Xiaoliang DING ,  Lei WANG ,  Changfeng LI ,  Pinchao GU

    IPC: B01L3/00

    Abstract: The present disclosure provides a micro-fluidic substrate, a micro-fluidic structure and a driving method thereof. The micro-fluidic substrate of the preset disclosure includes a substrate, and a plurality of driving electrodes on the substrate and configured to drive a droplet to move, the plurality of driving electrodes being in a same layer with a gap space between adjacent driving electrodes. The micro-fluidic substrate further includes: at least one auxiliary electrode on the substrate and configured to drive the droplet to move, an orthographic projection of the auxiliary electrode on the substrate at least partially overlapping with an orthographic projection of the gap space on the substrate, and the auxiliary electrode and the driving electrodes being in different layers.

    DISPLAY APPARATUS
    32.
    发明申请
    DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20200334436A1

    公开(公告)日：2020-10-22

    申请号：US16082444

    申请日：2018-01-04

    Applicant: BOE TECHNOLOGY GROUP CO., LTD

    Inventor： Rui XU ,  Xue DONG ,  Haisheng WANG ,  Yingming LIU ,  Pinchao GU ,  Changfeng LI ,  Qingrong REN

    IPC: G06K9/00 ,  G09F9/33

    Abstract: At least one embodiment of this disclosure provides a display apparatus for solving the problem of a low identification precision due to a relatively large distance between the finger and the fingerprint identification device. The display apparatus comprises a display panel and at least one fingerprint identification device. Each fingerprint identification device comprises a plurality of identification units arranged in an array, each identification unit being provided with a photosensitive element. The photosensitive element is used for performing photoelectric conversion of incident light. The fingerprint identification device further comprises a collimating filter layer arranged on a light entrance surface of the photosensitive element. The collimating filter layer comprises a plurality of strip-shaped light guide portions arranged to be spaced and parallel, a longitudinal direction of the plurality of strip-shaped light guide portions being substantially perpendicular to the light entrance surface of the photosensitive element.

    PIEZOELECTRIC DETECTION CIRCUIT, METHOD AND DISPLAY DEVICE
    37.
    发明申请
    PIEZOELECTRIC DETECTION CIRCUIT, METHOD AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20190067556A1

    公开(公告)日：2019-02-28

    申请号：US15918792

    申请日：2018-03-12

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Lijun ZHAO ,  Haisheng WANG ,  Yingming LIU ,  Yuzhen GUO ,  Yanan JIA ,  Changfeng LI ,  Pinchao GU ,  Yunke QIN

    IPC: H01L41/113 ,  H01L41/04 ,  H04R17/02 ,  G01L1/16

    Abstract: The present disclosure relates to piezoelectric detection circuits, methods and display devices. A piezoelectric detection circuit is provided that may comprise: a piezoelectric device to convert a pressure into a direct current (DC) signal and to convert a sound wave into an alternating current (AC) signal; a comparison circuit configured to output the direct current signal to a signal processor in a case where the piezoelectric device outputs DC signal, and to output the alternating current signal to the mixer in a case where the piezoelectric device outputs AC signal; the mixer configured to perform a mixing process on the AC signal to generate a mixed signal; and the signal processor configured to process the mixed signal output from the mixer or the direct current signal output from the comparison circuit, to detect the pressure or the sound.

    DISPLAY SUBSTRATE, DISPLAY PANEL AND DISPLAY DEVICE
    40.
    发明申请
    DISPLAY SUBSTRATE, DISPLAY PANEL AND DISPLAY DEVICE 有权

    公开(公告)号：US20250095558A1

    公开(公告)日：2025-03-20

    申请号：US18956163

    申请日：2024-11-22

    Applicant: Chengdu BOE Optoelectronics Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

    Inventor： Yao HUANG ,  Yuanyou QIU ,  Pinchao GU

    IPC: G09G3/32 ,  G09G3/3233

    Abstract: Disclosed in embodiments of the present disclosure are a display substrate, a display panel and a display device. The display substrate includes a plurality of first light-emitting devices in a first display area, a plurality of second light-emitting devices in a second display area, a plurality of first pixel driving circuits in the second display area, the first pixel driving circuits are connected with the first light-emitting devices, and the plurality of pixel driving circuit has a drive transistor; gate connecting electrodes connected to a gate electrode of the drive transistor; a plurality of traces, each of at least part of the traces being electrically connected from the first pixel driving circuits across the gate connecting electrodes to the first light-emitting devices; and a shielding layer including isolation parts, an orthographic projection of the isolation parts at least partially overlapping an orthographic projection of the gate connecting electrodes.

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