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    Touch panel, touch recognition method and touch device
    2.
    发明授权
    Touch panel, touch recognition method and touch device 有权

    公开(公告)号：US11521417B2

    公开(公告)日：2022-12-06

    申请号：US17355776

    申请日：2021-06-23

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Liang Cui ,  Haisheng Wang ,  Xiaoliang Ding ,  Yingming Liu ,  Pengpeng Wang ,  Ping Zhang ,  Yubo Wang ,  Xiufeng Li ,  Yuanyuan Ma

    IPC: G06V40/13 ,  G06F3/041 ,  G06F3/043

    Abstract: The present disclosure provides a touch panel including: a touch region having a plurality of ultrasonic signal detection circuits and a reference region having a plurality of reference circuits, each ultrasonic signal detection circuit includes an ultrasonic sensor and a first driving circuit; the ultrasonic sensor includes a first electrode, a second electrode, and a dielectric layer between the first electrode and the second electrode, the first driving circuit is configured to drive the ultrasonic sensor; each of the plurality of reference circuits includes a reference transceiver and a second driving circuit, the reference transceiver includes a third electrode, a fourth electrode, and a dielectric layer between the third electrode and the fourth electrode; the second driving circuit is configured to drive the reference transceiver; the dielectric layer of the ultrasonic sensor has piezoelectric sensitivity; the dielectric layer of the reference transceiver does not have the piezoelectric sensitivity.

    Sensing sub-circuit, circuit, recognition method, sensor, panel and device
    5.
    发明授权
    Sensing sub-circuit, circuit, recognition method, sensor, panel and device 有权

    公开(公告)号：US11527095B2

    公开(公告)日：2022-12-13

    申请号：US17489605

    申请日：2021-09-29

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Liang Cui ,  Lei Wang ,  Yangbing Li ,  Yubo Wang ,  Xiufeng Li ,  Yuanyuan Ma

    IPC: G06V40/13 ,  G06V10/98 ,  G06F3/043

    Abstract: The present disclosure provides a fingerprint sensing sub-circuit, a fingerprint sensing circuit, a fingerprint recognition method, a sensor, a touch display panel and a display device. The fingerprint sensing sub-circuit includes an acoustic wave generation circuit and an acoustic wave reception circuit. The acoustic wave generation circuit is configured to generate an ultrasonic wave. The acoustic wave reception circuit is configured to collect a voltage signal, convert the voltage signal into a current signal, and output the current signal to a signal output end. The acoustic wave generation circuit and the acoustic wave reception circuit are separated from each other, so that the fingerprint sensing sub-circuit operates in a mode where a transmitting operation and a receiving operation are separated from each other.

    Driving method and an apparatus for a fingerprint recognition device
    8.
    发明授权
    Driving method and an apparatus for a fingerprint recognition device 有权

    公开(公告)号：US11288485B2

    公开(公告)日：2022-03-29

    申请号：US16634286

    申请日：2019-07-30

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Changfeng Li ,  Haisheng Wang ,  Lei Wang ,  Yingming Liu ,  Xiaoliang Ding ,  Yapeng Li ,  Yuanyuan Ma ,  Yawei Wang

    IPC: G06K9/28 ,  G06K9/00

    Abstract: Disclosed herein includes a method, an apparatus, a display device and storage medium storing computer executable instructions for fingerprint recognition. The method may comprise turning on a first subset of a plurality of light sources located on an apparatus, capturing a first fingerprint acquisition frame using a plurality of image sensors on the apparatus, turning on a second subset of the plurality of light sources, and capturing a second fingerprint acquisition frame using the plurality of image sensors. The first fingerprint acquisition frame may include a first set of valid image zones and a first set of invalid image zones. The second fingerprint acquisition frame may include a second set of valid image zones and a second set of invalid image zones. The second set of valid image zones at least partially covers areas of a finger touching interface different from the first set of valid image zones.

    Light source module and display module
    9.
    发明授权
    Light source module and display module 有权

    公开(公告)号：US11258933B2

    公开(公告)日：2022-02-22

    申请号：US16652661

    申请日：2019-10-11

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Pengpeng Wang ,  Haisheng Wang ,  Xiaoliang Ding ,  Yangbing Li ,  Yapeng Li ,  Likai Deng ,  Yuanyuan Ma ,  Xueyou Cao ,  Ping Zhang

    IPC: H04N5/225 ,  H04N13/254 ,  G02F1/13357

    Abstract: A light source module and a display module are provided. The light source module includes: a substrate; a plurality of first light sources spaced on the substrate, each of the plurality of first light sources being configured to emit visible light; a depth sensor on the substrate; and a first blocking member configured to shield visible light but transmit invisible light. The depth sensor includes a second light source configured to emit invisible light and a light receiving member configured to sense invisible light, an orthographic projection of the second light source on the substrate is located within an orthographic projection of a gap between two adjacent first light sources on the substrate, an orthographic projection of the first blocking member on the substrate at least partially covers the orthographic projection of the second light source on the substrate.

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