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公开(公告)号：US20220238605A1
公开(公告)日：2022-07-28
申请号：US17539492
申请日：2021-12-01
Inventor： Wenhai MEI , Zhuo LI
Abstract: A display substrate, a display panel and a method for manufacturing the display substrate are provided. The display substrate comprises a backing substrate and a plurality of pixel areas formed on the backing substrate, wherein the display substrate further comprises a quantum dot layer, the quantum dot layer comprises a plurality of quantum dot units located in the plurality of pixel areas respectively, wherein the quantum dot units comprise a matrix layer and quantum dots dispersed in the matrix layer, the matrix layer comprises a central region and a peripheral region disposed around the central region, the peripheral region comprises a polymer of photocurable monomers, and the central region comprises unpolymerized photocurable monomers.
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公开(公告)号：US20220073816A1
公开(公告)日：2022-03-10
申请号：US17246833
申请日：2021-05-03
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wenhai MEI , Yichi ZHANG
Abstract: The present disclosure provides a quantum dot film, a quantum dot device, and a display panel. The provided quantum dot film comprises a plurality of quantum dots and a plurality of polymer molecular chains. The polymer molecule chain comprises at least one first segment and at least one second segment, wherein the first segment has a tensile modulus greater than that of the second segment, and the second segment has a flexural modulus less than that of the first segment.
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公开(公告)号：US20210288281A1
公开(公告)日：2021-09-16
申请号：US17255569
申请日：2020-02-26
Inventor： Dong LI , Wenhai MEI , Boris KRISTAL
Abstract: A light-emitting structure, a display panel and a display device. The light-emitting structure comprises a first light-emitting element. The first light-emitting element comprises a first light-emitting layer, a first electron transport layer and a first cathode. The first cathode is in contact with the first electron transport layer. The energy level of conduction band minimum (CBM) of the first electron transport layer is greater than the Fermi level of the first cathode. A difference between the energy level of CBM of the first electron transport layer and the Fermi level of the first cathode is in a range from 0.3 to 0.6 eV.
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公开(公告)号：US20190207137A1
公开(公告)日：2019-07-04
申请号：US16169567
申请日：2018-10-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wenhai MEI
CPC classification number: H01L51/502 , B82Y20/00 , B82Y40/00 , C08G75/14 , C09K11/025 , H01L51/0007 , H01L51/0028 , H01L51/0035 , H01L51/56
Abstract: The present disclosure provides a polymer, a quantum dots film layer and a preparation method thereof. The polymer includes a plurality of polymerized units, and each of the polymerized units includes a hydrophobic structure and a carrier transport structure. The hydrophobic structure is linked to the carrier transport structure via a bridge bond containing a functional atom, and the hydrophobic structure is provided with a first ligand. When the polymerized unit is broken at the bridge bond, a hydrophobic monomer containing the first ligand and a carrier transport monomer containing a second ligand are generated. The second ligand includes the functional atom, and the second ligand is stronger than the first ligand in coordination activity.
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公开(公告)号：US20240260301A1
公开(公告)日：2024-08-01
申请号：US18630294
申请日：2024-04-09
Inventor： Dong LI , Wenhai MEI , Boris KRISTAL
IPC: H10K50/16 , B82Y20/00 , C01B25/08 , C01G9/00 , C09K11/08 , C09K11/70 , H10K50/115 , H10K101/30 , H10K102/00
CPC classification number: H10K50/16 , C01B25/087 , C01G9/006 , C09K11/0883 , C09K11/70 , H10K50/115 , B82Y20/00 , C01P2004/64 , C01P2006/40 , H10K2101/30 , H10K2102/331
Abstract: A light-emitting structure and a display panel. The light-emitting structure includes: a first light-emitting element comprising a first light-emitting layer, a first electron transport layer, and a first cathode, the first cathode is in contact with the first electron transport layer, an energy level of conduction band minimum (CBM) of the first electron transport layer is larger than a Fermi level of the first cathode, the first electron transport layer comprises ZnMgO nanoparticles, and a molar percentage of Mg in the first electron transport layer is in a range from 10% to 20%.
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Patent Agency Ranking
36.发明公开公开(公告)号：US20240206210A1
公开(公告)日：2024-06-20
申请号：US17794335
申请日：2021-08-27
Inventor： Wenhai MEI
IPC: H10K50/115 , C09K11/06 , H10K71/60 , H10K85/10
CPC classification number: H10K50/115 , C09K11/06 , H10K71/60 , H10K85/111
Abstract: The present disclosure provides a light emitting device and a method for preparing the same, a display panel and a display device. The light emitting device includes: a base substrate; a first electrode, a light emitting layer and a second electrode stacked on the base substrate in sequence; the light emitting layer includes a polymer alignment layer and a quantum dot layer arranged adjacently, the polymer alignment layer having main chains, at least parts of which have a same length direction in the polymer alignment layer, and a ligand group connected to quantum dots in the quantum dot layer through a coordination bond.
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公开(公告)号：US20240065019A1
公开(公告)日：2024-02-22
申请号：US18501065
申请日：2023-11-03
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wenhai MEI , Zhenqi ZHANG , Aidi ZHANG
CPC classification number: H10K50/16 , H10K71/00 , H10K85/40 , H10K85/761 , G03F7/162
Abstract: A quantum dot light-emitting device, a manufacturing method and a display device are provided. The quantum dot light-emitting device includes a cathode and an electron transport layer arranged on one side of the cathode, wherein the electron transport layer comprises a plurality of pixel regions; an adhesive layer arranged on one side of the electron transport layer, away from the cathode; a quantum dot film layer arranged on one side of the adhesive layer, away from the electron transport layer, wherein both the quantum dot film layer and the adhesive layer are located in the pixel regions; wherein the adhesive layer is respectively connected to the electron transport layer and the quantum dot film layer through at least one of chemical bonding and physical entanglement.
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公开(公告)号：US20220320454A1
公开(公告)日：2022-10-06
申请号：US17419820
申请日：2020-09-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wenhai MEI , Yichi ZHANG
Abstract: The present disclosure provides a quantum dot light emitting diode, including: a first electrode, a second electrode, a quantum dot light emitting layer between the first electrode and the second electrode, an electron transport layer between the quantum dot light emitting layer and the first electrode, and an electron buffer layer between the electron transport layer and the quantum dot light emitting layer; wherein the electron transport layer and the electron buffer layer include a same metal oxide, and an oxygen vacancy concentration in the electron buffer layer is greater than that in the electron transport layer. The embodiment of the present disclosure also provides a manufacturing method for the quantum dot light emitting diode and a display apparatus.
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公开(公告)号：US20220165952A1
公开(公告)日：2022-05-26
申请号：US17357045
申请日：2021-06-24
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wenhai MEI
Abstract: The present application can provide a nanoparticle, a method for patterning a nanoparticle layer and a light emitting device. When the nanoparticle provided by the present application is adopted for manufacturing a light emitting layer of the light emitting device, a cross-linking reaction occurs among first ligands of adjacent nanoparticles under irradiation of ultraviolet light, and the cross-linked nanoparticles may be firmly connected to a front film layer of the light emitting layer, so that when a developing solution is adopted for developing treatment, the cross-linked nanoparticles are not insoluble in the developing solution and are retained while non-cross-linked nanoparticles are dissolved in the developing solution and are separated from the front film layer to be removed, therefore completing patterning of the nanoparticle layer.
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公开(公告)号：US20210305526A1
公开(公告)日：2021-09-30
申请号：US17264897
申请日：2020-05-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wenhai MEI , Tuo SUN , Yanzhao LI
Abstract: Embodiments of the present disclosure provide an array substrate and a manufacturing method therefor, and a display panel. The array substrate includes: a substrate and a pixel defining layer provided on the substrate, the pixel defining layer including a plurality of opening areas, and the plurality of opening areas being provided with a plurality of quantum dot light-emitting devices in a one-to-one correspondence manner; each of the quantum dot light-emitting devices includes a quantum dot light-emitting layer, and the quantum dot light-emitting layer is made of a quantum dot material. At least one of the pixel defining layer and the quantum dot material is magnetic.
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