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    ELECTROLUMINESCENT DEVICE AND METHOD FOR PREPARING THE SAME, DISPLAY PANEL AND DISPLAY DEVICE
    2.
    发明申请
    ELECTROLUMINESCENT DEVICE AND METHOD FOR PREPARING THE SAME, DISPLAY PANEL AND DISPLAY DEVICE 有权

    公开(公告)号：US20220115614A1

    公开(公告)日：2022-04-14

    申请号：US17334466

    申请日：2021-05-28

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Songquan WU ,  Xiaobo DU ,  Guanyin WEN ,  Cheng HAN

    IPC: H01L51/50 ,  H01L51/56

    Abstract: The present disclosure provides an electroluminescent device and a method for preparing the same, a display panel and a display device. The electroluminescent device includes a light emitting layer, a cathode layer, and an electron transport layer arranged between the light emitting layer and the cathode layer. The electron transport layer includes at least a first electron transport material and a second electron transport material that have different LUMO energy levels, and a ratio EM1/EM2 of the weight content of the first electron transport material to that of the second electron transport material decreases in a direction from a surface thereof proximate to the cathode layer to a surface thereof proximate to the light emitting layer. The electroluminescent device of the present disclosure can improve its efficiency and lifetime.

    DISPLAY SUBSTRATES, MASK ASSEMBLIES AND DISPLAY PANELS
    3.
    发明申请
    DISPLAY SUBSTRATES, MASK ASSEMBLIES AND DISPLAY PANELS 有权

    公开(公告)号：US20240405060A1

    公开(公告)日：2024-12-05

    申请号：US18696976

    申请日：2023-06-09

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

    Inventor： Xinxing GUAN ,  Na BI ,  Jianing LIU ,  Cheng HAN ,  Shun WANG ,  Shuang ZHENG ,  Qihao ZENG ,  Hao LIU

    IPC: H01L27/15

    Abstract: A display substrate, a mask assembly and a display panel are provided. The display substrate includes: pixel units arranged in an array and including first pixel units and second pixel units, where, in a row direction, the first pixel units and the second pixel units are alternately arranged; in a column direction, the first pixel units and the second pixel units are alternately arranged; the first pixel unit includes a first sub-pixel, two second sub-pixels, and a third sub-pixel in a virtual quadrilateral; the second pixel unit includes a first sub-pixel, two second sub-pixels, and a third sub-pixel in a virtual hexagon; where adjacent first pixel unit and second pixel unit in the column direction share a first sub-pixel or a third sub-pixel, and adjacent first pixel unit and second pixel unit in the row direction share a second sub-pixel.

    DISPLAY PANEL
    6.
    发明申请
    DISPLAY PANEL 有权

    公开(公告)号：US20250040342A1

    公开(公告)日：2025-01-30

    申请号：US18279063

    申请日：2022-11-29

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xiangmin WEN ,  Na BI ,  Yansong LI ,  Haidong WU ,  Yan FAN ,  Hao GAO ,  Cheng HAN

    IPC: H10K50/852 ,  H10K59/80 ,  H10K102/00

    Abstract: The present disclosure provides a display panel, and belongs to the technical field of display. The display panel in the present application includes a base substrate and a plurality of pixel units on the base substrate. Each of the pixel units includes a plurality of light-emitting units emitting light in different colors. Each of the the plurality of light-emitting unit includes a first electrode, an organic functional layer and a second electrode stacked sequentially along a direction away from the base substrate. Among the plurality of light-emitting units emitting light in different colors in each pixel unit, the second electrode of the light-emitting unit emitting light with a shortest wavelength has a smallest thickness along a direction perpendicular to the base substrate.

    DISPLAY PANEL, DISPLAY DEVICE, AND VEHICLE-MOUNTED DISPLAY SYSTEM
    7.
    发明申请
    DISPLAY PANEL, DISPLAY DEVICE, AND VEHICLE-MOUNTED DISPLAY SYSTEM 有权

    公开(公告)号：US20240389439A1

    公开(公告)日：2024-11-21

    申请号：US18693533

    申请日：2023-06-06

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Qixiao WU ,  Xu LI ,  Cheng HAN ,  Hao GAO ,  Zhihui ZHANG ,  Weiye ZHENG

    IPC: H10K59/80 ,  H10K59/38 ,  H10K59/40

    Abstract: A display panel comprises: a base substrate; a display function layer, comprising multiple light-emitting elements; a light-exit angle limiting layer, comprising a first light-blocking region and multiple first light-exit regions corresponding to multiple light-emitting elements on a one-to-one basis, an orthographic projection of each first light-exit region on the base substrate overlapping with an orthographic projection of a corresponding light-emitting element on the base substrate; a dimming function layer, comprising multiple dimming structures corresponding to multiple light-emitting elements on a one-to-one basis, an orthographic projection of each dimming structure on the base substrate not overlapping with an orthographic projection of a corresponding light-emitting element on the base substrate, the dimming structure being configured to change a direction of propagation of part of the light that is emitted by the corresponding light-emitting element and directed toward the first light-blocking region into a direction toward the corresponding first light-exit region.

    ANTI-PEEPING PANEL, PREPARATION METHOD, DRIVING METHOD, AND DISPLAY DEVICE
    8.
    发明公开
    ANTI-PEEPING PANEL, PREPARATION METHOD, DRIVING METHOD, AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20240184151A1

    公开(公告)日：2024-06-06

    申请号：US17785034

    申请日：2021-08-04

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Cheng HAN ,  Xin LI ,  Xing FAN ,  Qixiao WU ,  Songquan WU

    IPC: G02F1/13 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1347

    CPC classification number: G02F1/1323 ,  G02F1/13378 ,  G02F1/13439 ,  G02F1/13475

    Abstract: An anti-peeping panel, a preparation method, a driving method, and a display device. The anti-peeping panel includes: a first substrate; a second substrate; a composite material layer; first and second transparent electrode layers. The first and second transparent electrode layers includes first and second elongate electrodes respectively; orthographic projections of at least one first and second elongate electrode on the first substrate have a first overlapping region; the composite material layer includes first and second composite regions, the second composite region overlaps with the first overlapping region; when an electric field of first frequency exists between first and second elongate electrodes, the second composite region shades light, the first composite region transmits light; when an electric field of second frequency exists between first and second elongate electrodes, the second composite region transmits light, the first composite region transmits light; the first frequency is different from the second frequency.

    ARRAY SUBSTRATE AND DISPLAY APPARATUS
    9.
    发明公开
    ARRAY SUBSTRATE AND DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20240147803A1

    公开(公告)日：2024-05-02

    申请号：US17772245

    申请日：2021-05-26

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xing FAN ,  Xin LI ,  Cheng HAN ,  Yansong LI

    IPC: H10K59/35 ,  H10K59/124

    CPC classification number: H10K59/353 ,  H10K59/124 ,  H10K2102/311

    Abstract: An array substrate and a display apparatus are provided The array substrate includes: at least one adjusting portion on the base substrate and having a first cross section in a plane perpendicular to the base substrate; first cross section includes top and bottom sides, first and second lateral sides; the bottom side is closer to the base substrate than the top side, an orthographic projection of the top side on the base substrate is within an orthographic projection of the bottom side on the base substrate; the first and/or second lateral sides is/are stepped; a buffer layer on a side of the adjusting portion away from the base substrate; light-emitting devices on a side of the buffer layer away from the base substrate and each including a first electrode, a light-emitting layer and a second electrode sequentially arranged along a direction away from the base substrate.

    Display Substrate, Manufacturing Method Thereof, and Display Apparatus
    10.
    发明公开
    Display Substrate, Manufacturing Method Thereof, and Display Apparatus 审中-公开

    公开(公告)号：US20230363208A1

    公开(公告)日：2023-11-09

    申请号：US17633219

    申请日：2021-04-26

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Xing FAN ,  Shantao CHEN ,  Xin LI ,  Hao GAO ,  Cheng HAN ,  Yansong LI

    IPC: H10K59/122 ,  H10K59/80 ,  H10K59/12

    CPC classification number: H10K59/122 ,  H10K59/873 ,  H10K59/1201 ,  H10K2102/351

    Abstract: A display substrate includes a first electrode layer, a pixel define layer, an organic light-emitting layer, a second electrode layer and a first encapsulation layer which are sequentially disposed away from an base substrate. The pixel define layer has a plurality of openings, at least one of which exposes the first electrode layer. The pixel define layer has a first climbing part and a second climbing part close to the edge of at least one opening, the distance from a surface of the second climbing part away from the base substrate to the base substrate is greater than the distance from a surface of the first climbing part away from the base substrate to the base substrate, and the slope angle of the first climbing part is different from that of the second climbing part.

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