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    Pattern identification device and display apparatus
    71.
    发明授权
    Pattern identification device and display apparatus 有权

    公开(公告)号：US11373386B2

    公开(公告)日：2022-06-28

    申请号：US16343768

    申请日：2018-08-13

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Pinchao Gu ,  Haisheng Wang ,  Chunwei Wu ,  Yingming Liu ,  Rui Xu ,  Changfeng Li ,  Lijun Zhao ,  Yanan Jia ,  Yuzhen Guo ,  Yunke Qin

    IPC: G06K9/20 ,  G06K9/00 ,  H01L27/32 ,  G06V10/147 ,  G06V10/145 ,  G06V40/13 ,  G06V40/16

    Abstract: A device for identifying a pattern over a first surface includes a photosensitive layer, and a light-guiding layer disposed between the photosensitive layer and the first surface. The photosensitive layer includes a plurality of photosensitive elements, each configured to convert incident light into an electrical signal. The light-guiding layer includes a plurality of light-guiding units, each positionally corresponding to one of the plurality of photosensitive elements. Each light-guiding unit includes a plurality of light-transmitting portions, each configured to guide a light beam reflected from a feature of the pattern positionally corresponding thereto to transmit therethrough and reach one of the plurality of photosensitive elements corresponding to the each of the plurality of light-guiding units. The device can be used for identification of fingerprint, as well as other biometric or non-biometric features, and has a reduced thickness and an improved accuracy for pattern identification.

    Micro-fluidic substrate, micro-fluidic structure and driving method thereof
    74.
    发明授权
    Micro-fluidic substrate, micro-fluidic structure and driving method thereof 有权

    公开(公告)号：US11331666B2

    公开(公告)日：2022-05-17

    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.

    Texture recognition device and operation method of texture recognition device
    76.
    发明授权
    Texture recognition device and operation method of texture recognition device 有权

    公开(公告)号：US11232279B2

    公开(公告)日：2022-01-25

    申请号：US16648628

    申请日：2019-09-30

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Haisheng Wang ,  Xue Dong ,  Yingming Liu ,  Xiaoliang Ding ,  Lei Wang ,  Changfeng Li ,  Yapeng Li

    IPC: G06K9/00 ,  G06K9/20

    Abstract: A texture recognition device and an operation method of a texture recognition device are provided. The texture recognition device includes a light source array and an image sensor array. The light source array includes a plurality of light sources; the image sensor array is at a side of the light source array and includes a plurality of image sensors, and the plurality of image sensors are configured to receive light emitted from the plurality of light sources and reflected to the image sensors by a texture for a texture image collection; each of the image sensors includes a plurality of signal switches, and a signal of each of the image sensors is read through the plurality of signal switches for forming one image pixel of the texture image.

    METHOD FOR DETECTING BIOMETRIC INFORMATION, BIOMETRIC SENSOR, AND DISPLAY APPARATUS
    77.
    发明申请
    METHOD FOR DETECTING BIOMETRIC INFORMATION, BIOMETRIC SENSOR, AND DISPLAY APPARATUS 有权

    公开(公告)号：US20220004731A1

    公开(公告)日：2022-01-06

    申请号：US16495034

    申请日：2019-03-04

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Changfeng Li ,  Haisheng Wang ,  Xiaochuan Chen ,  Lei Wang ,  Yingming Liu ,  Xueyou Cao ,  Yunke Qin

    IPC: G06K9/00 ,  G06F3/044 ,  G06K9/20 ,  G06F3/041 ,  H01L27/32 ,  H01L51/52

    Abstract: A method for detecting a biometric information includes providing a biometric sensor including a base substrate, a light emitting layer and a touch detection layer on the base substrate, an encapsulating cover on a side of the light emitting layer away from the base substrate, and a photo-sensing layer between the light emitting layer and the base substrate; determining a touch position of a touch by a touch sensing circuit; determining a scanning region based on the touch position; controlling the light emitting layer to form a scanning light source to scan the scanning region in a scanning pattern, the scanning region encompassing the touch position; determining a light intensity distribution of a reflected light reflected by the surface of the biometric sensor in touch with the skin of the user based on signals from the plurality of photosensors; and determining the biometric information based on the light intensity distribution.

    Drive method for texture recognition device and texture recognition device
    78.
    发明授权
    Drive method for texture recognition device and texture recognition device 有权

    公开(公告)号：US11188772B2

    公开(公告)日：2021-11-30

    申请号：US16765936

    申请日：2019-11-28

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Haisheng Wang ,  Xue Dong ,  Yingming Liu ,  Xiaoliang Ding ,  Lei Wang ,  Changfeng Li ,  Yapeng Li

    IPC: G06K9/20 ,  G06K9/00 ,  G06F3/041 ,  G09G3/3208

    Abstract: A drive method for a texture recognition device and a texture recognition device. The texture recognition device includes a light source array and an image sensor array. The image sensor array includes a plurality of image sensors, the plurality of image sensors are configured to receive light emitted from the plurality of sub-light sources and then reflected by a texture to the plurality of image sensors for a texture collection; the drive method includes: at a first moment, the light source array operating to provide a first photosensitive light source, and at the first moment or a second moment different from the first moment, the light source array operating to provide a second photosensitive light source. A first imaging range of the first photosensitive light source on the image sensor array partially overlaps a second imaging range of the second photosensitive light source on the image sensor array.

    DISPLAY PANEL, METHOD OF DRIVING DISPLAY PANEL, DISPLAY DEVICE CONTAINING DISPLAY PANEL
    79.
    发明申请
    DISPLAY PANEL, METHOD OF DRIVING DISPLAY PANEL, DISPLAY DEVICE CONTAINING DISPLAY PANEL 有权

    公开(公告)号：US20210335251A1

    公开(公告)日：2021-10-28

    申请号：US16344531

    申请日：2018-11-02

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Yingming Liu ,  Xue Dong ,  Haisheng Wang ,  Xiaoliang Ding ,  Changfeng Li ,  Wei Liu

    IPC: G09G3/3258 ,  H01L27/32

    Abstract: A display panel includes a plurality of pixels arranged in an array; a plurality of first sensor units (2) in the array, each first sensor unit (2) being coupled to at least one of the plurality of pixels and being configured to detect brightness of the at least one of the plurality of pixels; and a plurality of second sensor units (3) in the array, each second sensor unit (3) being coupled to at least one of the plurality of first sensor units (2) and being configured to detect a variation in at least one environmental parameter of the at least one of the plurality of pixels. Each first sensor unit (2) includes a first photo sensor (S1). Each second sensor unit (3) comprises a second photo sensor (S2) and a shielding layer on a light-receiving surface of the second photo sensor (S2).

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