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    LIGHT-EMITTING DEVICE AND DISPLAY PANEL
    1.
    发明申请
    LIGHT-EMITTING DEVICE AND DISPLAY PANEL 有权

    公开(公告)号：US20240389379A1

    公开(公告)日：2024-11-21

    申请号：US18693532

    申请日：2023-07-31

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Hui ZHOU ,  Yansong LI ,  Xiaobo DU ,  Guanyin WEN ,  Shuyun XU

    IPC: H10K50/19 ,  H10K50/16 ,  H10K50/165 ,  H10K85/30 ,  H10K101/30 ,  H10K101/40

    Abstract: Disclosed is a light-emitting device including a first electrode; a second electrode; a plurality of light-emitting units; and a charge separation/generation unit disposed between adjacent light-emitting units. Each charge separation/generation unit includes a first charge transmission sub-unit, a first charge generation sub-unit, a second charge generation sub-unit, and a second charge transmission sub-unit, sequentially arranged in a direction from the first electrode to the second electrode, the charge separation/generation unit satisfies that a transmittance is greater than 50% for visible light having a wavelength ranging from 380 nm to 480 nm, satisfies that a transmittance is greater than 70% for visible light having a wavelength ranging from 480 nm to 580 nm, and satisfies that a transmittance is greater than 75% for visible light having a wavelength ranging from 580 nm to 680 nm.

    LIGHT-EMITTING DEVICE, DISPLAY SUBSTRATE AND DISPLAY APPARATUS
    2.
    发明申请
    LIGHT-EMITTING DEVICE, DISPLAY SUBSTRATE AND DISPLAY APPARATUS 有权

    公开(公告)号：US20250113704A1

    公开(公告)日：2025-04-03

    申请号：US18729992

    申请日：2023-09-26

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Hui ZHOU ,  Yansong LI ,  Xiaobo DU ,  Guanyin WEN ,  Lihui MA

    IPC: H10K50/19

    Abstract: A light-emitting device includes a first electrode and a second electrode opposite to each other, and at least two light-emitting units in a stack between the first electrode and the second electrode. The light-emitting device further includes a charge generation unit between adjacent light-emitting units. The charge generation unit includes a first charge generation unit and a second charge generation unit sequentially arranged in a direction from the second electrode to the first electrode. The first charge generation unit is made of a material including a first host material, and a first guest material doped in the first host material, the first charge generation unit is configured to generate a first charge, and the first guest material is configured to absorb light emitted from the light-emitting units to cause the first charge generation unit to generate the first charge.

    OLED DISPLAY PANEL AND PREPARATION METHOD THEREFOR, AND DISPLAY APPARATUS
    3.
    发明申请
    OLED DISPLAY PANEL AND PREPARATION METHOD THEREFOR, AND DISPLAY APPARATUS 有权

    公开(公告)号：US20220376001A1

    公开(公告)日：2022-11-24

    申请号：US17771824

    申请日：2021-07-07

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Haidong WU ,  Xiaobo DU ,  Xiaojin ZHANG ,  Guanyin WEN

    IPC: H01L27/32 ,  H01L51/56

    Abstract: An OLED display panel, a preparation method therefor, and a display apparatus. The display panel includes a display area including a first sub-pixel, a second sub-pixel and a third sub-pixel displaying different colors; the display area includes a first electrode layer, a pixel defining layer, an organic functional layer and a second electrode layer sequentially arranged on a substrate; the organic functional layer includes a first light-emitting layer in the first sub-pixel, a second light-emitting layer in the second sub-pixel, and a third light-emitting layer covering the display area and having an integrated structure; the orthographic projection, on the substrate, of each of the first light-emitting layer and the second light-emitting layer includes the orthographic projection of an opening on the substrate, which defines a corresponding sub-pixel, of the pixel defining layer and does not overlap with orthographic projections of remaining openings of the pixel defining layer on the substrate.

    DISPLAY SUBSTRATE AND RELATED DEVICE
    4.
    发明申请
    DISPLAY SUBSTRATE AND RELATED DEVICE 有权

    公开(公告)号：US20230074902A1

    公开(公告)日：2023-03-09

    申请号：US17800683

    申请日：2021-11-11

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Guanyin WEN ,  Yue LIU

    IPC: H01L27/32 ,  H01L51/56 ,  H01L51/00

    Abstract: Provided are a display substrate and a related device, belonging to the technical field of display. The display substrate includes a first sub-pixel and a second sub-pixel provided on a base substrate and having different colors. An orthographic projection of a first organic light-emitting layer of the first sub-pixel and an orthographic projection of a second organic light-emitting layer of the second sub-pixel onto the base substrate have an overlapping area, an insulating blocking layer is provided between the first organic light-emitting layer and the second organic light-emitting layer, and an orthographic projection of the blocking layer onto the base substrate covers at least part of the overlapping area. The technical solution of the present disclosure can prevent crosstalk between adjacent pixels.

    LIGHT-EMITTING SUBSTRATE, DISPLAY PANEL, LIGHT-EMITTING EQUIPMENT, METHOD AND APPARATUS FOR MANUFACTURING LIGHT-EMITTING SUBSTRATE
    5.
    发明申请
    LIGHT-EMITTING SUBSTRATE, DISPLAY PANEL, LIGHT-EMITTING EQUIPMENT, METHOD AND APPARATUS FOR MANUFACTURING LIGHT-EMITTING SUBSTRATE 有权

    公开(公告)号：US20220293702A1

    公开(公告)日：2022-09-15

    申请号：US17537622

    申请日：2021-11-30

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xiaobo DU ,  Yansong LI ,  Guanyin WEN

    IPC: H01L27/32 ,  H01L51/56 ,  H01L51/52

    Abstract: A light-emitting substrate includes a base substrate, a pixel defining layer, a first electrode layer and a light-emitting functional layer. The pixel defining layer has a plurality of opening portions; the first electrode layer includes a plurality of first electrodes, at least a part of each first electrode is exposed to one of the opening portions and constitutes an accommodating portion with the opening portion; the light-emitting functional layer includes a plurality of functional sub-layers, at least one of which is a first functional sub-layer, the first functional sub-layer includes a plurality of functional patterns, each of which is located in one of the accommodating portions and is conformal to a surface of the accommodating portion, and a distance from an edge of the functional pattern to the base substrate is smaller than or equal to a distance from an edge of the accommodating portion to the base substrate.

    DISPLAY PANEL, PREPARATION METHOD THEREOF AND DISPLAY APPARATUS
    8.
    发明申请
    DISPLAY PANEL, PREPARATION METHOD THEREOF AND DISPLAY APPARATUS 有权

    公开(公告)号：US20250098403A1

    公开(公告)日：2025-03-20

    申请号：US18577163

    申请日：2023-03-29

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Pengfei ZUO ,  Guanyin WEN ,  Yanjun HAO ,  Hui ZHOU ,  Qixiao WU ,  Huameng LIU

    IPC: H10K50/19 ,  H10K50/13 ,  H10K59/12 ,  H10K59/122 ,  H10K102/00

    Abstract: A display panel, including a substrate, and a first electrode, at least two emission functional layers and a second electrode sequentially stacked on a side of the substrate, where for any two adjacent emission functional layers, one close to the substrate includes a first hole transport layer, a first emission layer, a first electron transport layer, and an N-type charge generation layer sequentially stacked away from the substrate, and the other away from the substrate includes a P-type charge generation layer, a second hole transport layer, a second emission layer, and a second electron transport layer sequentially stacked away from the N-type charge generation layer; the first electron transport layer has a thickness ranging from 3 nm to 10 nm; the first electron transport layer includes first, second and third subportions; and the first subportion has a thickness smaller than those of the second and third subportions.

    DISPLAY PANEL, DISPLAY DEVICE, AND CONTROL METHOD OF DISPLAY DEVICE
    9.
    发明申请
    DISPLAY PANEL, DISPLAY DEVICE, AND CONTROL METHOD OF DISPLAY DEVICE 有权

    公开(公告)号：US20220293030A1

    公开(公告)日：2022-09-15

    申请号：US17513641

    申请日：2021-10-28

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Haidong WU ,  Yansong LI ,  Guanyin WEN ,  Xiaobo DU ,  Bei WANG

    IPC: G09G3/20 ,  G09G3/3208

    Abstract: The present disclosure discloses a display panel, a display device, and a control method of the display device. The display panel includes sub-pixels of a plurality of colors, wherein the sub-pixels of the plurality of colors include first blue sub-pixels and second blue sub-pixels, and a wavelength of each first blue sub-pixel is smaller than a wavelength of each second blue sub-pixel. The first blue sub-pixels and the second blue sub-pixels are driven to perform image display when the display panel is in a regular display mode; and the second blue sub-pixels are driven to perform image display when the display panel is in an eye protection display mode.

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