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公开(公告)号：US20240206296A1
公开(公告)日：2024-06-20
申请号：US17794628
申请日：2021-08-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiaojin ZHANG , Siqi WANG , Haiyan SUN
IPC: H10K59/80 , H10K59/50 , H10K85/10 , H10K102/00
CPC classification number: H10K59/8791 , H10K59/50 , H10K59/879 , H10K85/111 , H10K2102/351
Abstract: A display substrate includes a light emitting element disposed on a base substrate, and a light dimming structure layer and an anti-reflection layer stacked sequentially at a light exiting side of the light emitting element, wherein the light dimming structure layer includes a polarizing film layer configured to convert at least a portion of light emitted by the light emitting element incident onto the polarizing film layer into circularly polarized light with a set rotational direction to pass through the polarizing film layer; the anti-reflection layer includes a phase retarder and a linear polarizer which are stacked sequentially along a direction away from the base substrate, the phase retarder being configured to convert the circularly polarized light passing through the polarizing film layer into linearly polarized light, a polarization direction of which is parallel to a direction of a light transmission axis of the linear polarizer.
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2.发明申请公开(公告)号：US20220416190A1
公开(公告)日：2022-12-29
申请号：US17765005
申请日：2021-05-13
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaojin ZHANG , Xinghua LIU , Huiyun YANG , Dan WANG
Abstract: An organic light-emitting device and a preparation method therefor, a display panel, and a display device. The organic light-emitting device comprises an anode layer, a cathode layer, and a first light-emitting layer and an auxiliary light-emitting layer disposed between the anode layer and the cathode layer; the auxiliary light-emitting layer is located between the first light-emitting layer and the cathode layer; the first light-emitting layer comprises a first host material, a first thermally activated delayed fluorescence material, and a first fluorescence guest material; the auxiliary light-emitting layer comprises at least a second host material and a second thermally activated delayed fluorescence material. The first light-emitting layer is a super-fluorescence system, and the auxiliary light-emitting layer also forms a super-fluorescence system together with the first fluorescence guest material.
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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
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.
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公开(公告)号：US20180142341A1
公开(公告)日：2018-05-24
申请号：US15030593
申请日：2015-12-10
Inventor： Lei CHEN , Xiaojin ZHANG
IPC: C23C14/24
CPC classification number: C23C14/243
Abstract: The present application discloses a vapor-deposition crucible comprising a crucible body for housing a vapor-deposition material and a heat conductor inside the crucible body. At least a portion of the heat conductor extends continuously from a region proximal to an interior surface of the crucible body to a region proximal to a center axis of the crucible body.
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公开(公告)号：US20240389453A1
公开(公告)日：2024-11-21
申请号：US18271050
申请日：2022-04-28
Applicant: BOE Technology Group Co., Ltd.
Inventor： Haiyan SUN , Xiaojin ZHANG , Lixia QIU , Dan WANG
IPC: H10K85/60 , C09K11/06 , H10K50/11 , H10K50/16 , H10K101/40 , H10K102/00
Abstract: The present disclosure provides an organic electroluminescent diode, and belongs to the field of display technology. The organic electroluminescent diode includes an anode, a light emitting layer, a hole blocking layer, an electron transport layer, and a cathode, which are stacked in sequence; wherein the light emitting layer comprises a host material, a TADF material, and a fluorescent dopant material; the host material is selected from the compound represented by Chemical Formula 1, and the material of the hole blocking layer is selected from the compound represented by Chemical Formula 2: The organic electroluminescence diode can improve the lifetime of the diode.
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Patent Agency Ranking
公开(公告)号：US20240373714A1
公开(公告)日：2024-11-07
申请号：US18777935
申请日：2024-07-19
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Haiyan SUN , Meishan XU , Xiaojin ZHANG , Changho LEE , Dan WANG
IPC: H10K59/35 , H10K50/11 , H10K50/15 , H10K50/16 , H10K50/17 , H10K59/122 , H10K101/40
Abstract: The present disclosure provides a display substrate and a display panel. The display substrate comprises: a base substrate, a first electrode layer, a first light-emitting layer, a first common connection layer, a second light-emitting layer, a third light-emitting layer, and a second electrode layer. The first electrode layer is provided on a side of the base substrate; the first light-emitting layer is provided on a side of the first electrode layer away from the base substrate; the first common connection layer is provided on a side of the first light-emitting layer away from the first electrode layer, and comprises a plurality of first sub-common connection layers; each second sub-light-emitting layer of the second light-emitting layer is provided on a side of each first sub-common connection layer away from the first light-emitting layer in one-to-one correspondence.
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公开(公告)号：US20240206303A1
公开(公告)日：2024-06-20
申请号：US17794626
申请日：2021-08-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Haiyan SUN , Xiaojin ZHANG , Siqi WANG
IPC: H10K59/80 , H10K59/50 , H10K102/00
CPC classification number: H10K59/8793 , H10K59/50 , H10K59/873 , H10K59/879 , H10K2102/351
Abstract: A display substrate and a display device are provided. The display substrate includes a light emitting element disposed on a base substrate, and an encapsulation layer, a connection layer, a light extraction layer, a polarization conversion layer and a polarization layer stacked sequentially at a light exiting side of the light emitting element. The light extraction layer is configured to convert at least a portion of light emitted by the light emitting element incident onto the light extraction layer into circularly polarized light with a set rotational direction to pass through the light extraction layer. The polarization conversion layer is configured to convert the circularly polarized light passing through the light extraction layer into linearly polarized light, with a polarization direction parallel to a direction of a light transmission axis of the polarization layer; the connection layer is configured to bond the light extraction layer to the encapsulation layer.
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公开(公告)号：US20240196708A1
公开(公告)日：2024-06-13
申请号：US17908095
申请日：2021-09-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Haiyan SUN , Xiaojin ZHANG , Siqi WANG , Dan WANG
IPC: H10K59/80 , H10K59/126 , H10K59/38 , H10K102/00
CPC classification number: H10K59/879 , H10K59/126 , H10K59/38 , H10K2102/351
Abstract: A light-emitting substrate includes a substrate, a plurality of sub-pixels, a first light extraction layer and a second light extraction layer. Each sub-pixel includes a light-emitting element and a light conversion pattern disposed on a light-exit side of the light-emitting element. The plurality of sub-pixels include at least one first sub-pixel. The first light extraction layer is disposed on a side of the first sub-pixel away from the light-emitting element, and at least located in a region where the at least one first sub-pixel is located. The first light extraction layer includes first transparent substrate(s) and optically active substances added in each first transparent substrate. The second light extraction layer is disposed on a side of the first light extraction layer away from the light-emitting element. A refractive index of the second light extraction layer is smaller than a refractive index of the first light extraction layer.
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公开(公告)号：US20230171983A1
公开(公告)日：2023-06-01
申请号：US17615424
申请日：2021-02-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Haiyan SUN , Xiaojin ZHANG
CPC classification number: H10K50/15 , H10K50/115 , H10K71/135 , H10K50/16 , H10K85/1135 , H10K71/60 , H10K85/631 , H10K2101/30
Abstract: The present disclosure provides a light-emitting device, a manufacturing method thereof, and a display device. The light-emitting device includes an anode, a cathode, a light-emitting layer between the anode and the cathode, and a hole transport layer between the anode and the light-emitting layer. The hole transport layer includes a first compound and a second compound, and an absolute value of an energy level of the highest occupied molecular orbital of the second compound is greater than or equal to 5 eV and less than or equal to 6.5 eV.
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公开(公告)号：US20230380278A1
公开(公告)日：2023-11-23
申请号：US18027500
申请日：2021-01-06
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xinghua LIU , Xiaojin ZHANG , Haiyan SUN , Yong WU
CPC classification number: H10K85/6572 , H10K85/631 , H10K85/654 , H10K50/15 , H10K50/181
Abstract: Provided is a light-emitting diode. The light-emitting diode includes: an anode; a hole transport layer, disposed on a side of the anode and containing a hole transport material, wherein the hole transport material includes an organic small molecule material with a molecular weight less than 4000, and a hole mobility of the hole transport material is not less than 1×E−5 cm2/(VS); a light-emitting layer, disposed on a side, distal from the anode, of the hole transport layer, and containing a quantum dot material; an electron buffer layer, disposed on a side, distal from the hole transport layer, of the light-emitting layer, and containing a thermally activated delayed fluorescent material; and a cathode, disposed on a side, distal from the light-emitting layer, of the electron buffer layer.
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