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公开(公告)号：US20220379289A1
公开(公告)日：2022-12-01
申请号：US17764928
申请日：2021-06-17
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wenhai MEI
Abstract: The present disclosure provides a quantum-dot ligand, a quantum-dot catalyst and a quantum-dot device. The quantum-dot ligand includes: a first ligand having a first group and a second group and a second ligand having an inorganic ion, in which a coordination bond is formed between the first group and a surface of a quantum dot, a hydrogen bond is formed between the second group and a hydroxyl group; and a coordination bond is formed between the inorganic ion and the surface of the quantum dot. The quantum-dot catalyst of the present disclosure can enhance a catalytic activity of the quantum dots and improve the catalytic performance.
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22.发明申请公开(公告)号：US20220102661A1
公开(公告)日：2022-03-31
申请号：US17402112
申请日：2021-08-13
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wenhai MEI , Yichi ZHANG
Abstract: Disclosed are a light emitting panel, a display apparatus, and a method for manufacturing the light emitting panel. The light emitting panel includes: a substrate, at least two electrode layers arranged on one side of the substrate, a light emitting layer between the electrode layers. An interfacial modification layer is arranged on one side of at least one of the electrode layers facing the light emitting layer. The interfacial modification layer includes: a polycyclic structure, a first electriferous group connected to a side of the polycyclic structure away from the light emitting layer, a second electriferous group connected to a side of the polycyclic structure facing the light emitting layer. Charges of the first and second electriferous group are different, so that the interfacial modification layer has a dipole moment, therefore a work function of the electrode layers in contact with the interfacial modification layer is adjusted.
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公开(公告)号：US20220098479A1
公开(公告)日：2022-03-31
申请号：US17405963
申请日：2021-08-18
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wenhai MEI , Yichi ZHANG
Abstract: Disclosed are a quantum dot light emitting device, a preparation method thereof and a display apparatus. In embodiments of the present disclosure, at least one of one or more light emitting function layers is disposed to include at least two sub-function layers, each sub-function layer includes ligands, and surface energy of the ligands corresponding to the sub-function layers gradiently changes in a transmission direction of carriers in the sub-function layers, so that energy levels of the sub-function layers gradiently change. In this way, the energy levels of the sub-function layers can be matched with energy levels of the adjacent light emitting function layers.
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公开(公告)号：US20210388259A1
公开(公告)日：2021-12-16
申请号：US17286428
申请日：2020-09-11
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wenhai MEI , Zhenqi ZHANG , Aidi ZHANG , Xiaoyuan ZHANG , Haowei WANG
Abstract: The present disclosure relates to a ligand for a quantum dot, a ligand quantum dot, a quantum dot layer and a method for patterning the same. The surface of the ligand quantum dot of the present disclosure is connected with the cleavage-type ligand including a first ligand unit A, a cleavage unit B, and an adhesion adjusting unit C. The method includes: providing a substrate; coating a mixture containing the ligand quantum dot on the substrate to form a quantum dot film; exposing a preset region of the quantum dot film to ultraviolet light, so that the cleavage unit B in the cleavage-type ligand undergoes a photolysis reaction, and a molecular segment containing the adhesion adjusting unit C and obtained after decomposition is detached from a surface of the quantum dot; and washing off an unexposed region of the quantum dot film with an organic solvent, followed by drying.
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公开(公告)号：US20240324266A1
公开(公告)日：2024-09-26
申请号：US18032503
申请日：2020-12-17
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wenhai MEI
IPC: H10K50/115 , H10K50/125 , H10K71/00 , H10K71/60 , H10K85/10
CPC classification number: H10K50/115 , H10K50/125 , H10K71/60 , H10K71/841 , H10K85/111
Abstract: A quantum dot light-emitting device, a display apparatus, and a manufacturing method are provided. The quantum dot light-emitting device includes a base substrate and a plurality of sub-pixels having different light-emitting colors located on one side of the base substrate. Each sub-pixel includes a first electrode; a quantum dot light-emitting portion, the quantum dot light-emitting portion being located on the side of the first electrode facing away from the base substrate; an electrical response portion, the electrical response portion being located between the first electrode and the quantum dot light-emitting portion and having a conjugated polymer or a reaction product of the conjugated polymer; and a second electrode, the second electrode being located on the side of the quantum dot light-emitting portion facing away from the electrical response portion.
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Patent Agency Ranking
26.发明公开公开(公告)号：US20240276855A1
公开(公告)日：2024-08-15
申请号：US18646695
申请日：2024-04-25
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wenhai MEI , Zhenqi ZHANG , Zhihong Wu
IPC: H10K71/00 , H10K50/115 , H10K71/20
CPC classification number: H10K71/00 , H10K50/115 , H10K71/20
Abstract: A method of patterning quantum dot layer includes: forming, on a substrate, a film layer including a photosensitive material and quantum dots with ligands on surfaces of the quantum dots; irradiating a quantum dot reserved area with light of a preset wavelength; where under irradiation with light of the preset wavelength, the photosensitive material or a product of the photosensitive material after light irradiation reacts with the ligands on the surfaces of the quantum dots, to allow the ligands to fall off from the surfaces of the quantum dots, so that solubility of the quantum dots is changed to cause the quantum dots to undergo coagulation; and removing a portion of the film layer which is not irradiated by the light of the preset wavelength, to form a patterned quantum dot portion of the quantum dot layer in the quantum dot reserved area.
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公开(公告)号：US20230119074A1
公开(公告)日：2023-04-20
申请号：US16965457
申请日：2019-09-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wenhai MEI , Zhenqi ZHANG , Xiaoyuan ZHANG
IPC: C09K11/02 , C09K11/88 , C07C211/54 , H10K50/115
Abstract: Embodiments of the present disclosure provide a quantum dot ligand, a quantum dot material, and a quantum dot light emitting device. In a quantum dot ligand of general formula (I), n is 1, 2, 3, or 4; two of X, Y, and Z are G1 group and G2 group, respectively, and the remaining one is selected from the group consisting of G1 group, G2 group, and hydrogen, wherein the G1 group, for each occurrence, is independently selected from —(CH2)m-L-(CH2)n—R1, wherein R1 is a coordination group, m is 0 to 6, n is 0 to 6, and L is a divalent group or absent; the G2 group, for each occurrence, is independently selected from a C4-20 alkyl having a carbon chain with more than 4 carbon atoms.
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公开(公告)号：US20230039681A1
公开(公告)日：2023-02-09
申请号：US17628145
申请日：2021-03-02
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wenhai MEI
Abstract: Provided are a display substrate, a preparation method thereof, and a display apparatus. A portion of a pixel definition layer that is in contact with a light-emitting functional layer is configured to have the performance of switching between hydrophilicity and hydrophobicity when an external condition changes. When film layers of the light-emitting functional layer are formed, due to the inconsistent hydrophilicity or hydrophobicity of the film layers of the light-emitting functional layer, when a hydrophilic light-emitting functional layer is formed, the pixel definition layer switches, under processing via the external condition, the portion of the pixel definition layer that is in contact with the light-emitting functional layer to be hydrophobic, and when a hydrophobic light-emitting functional layer is formed, the pixel definition layer switches, under processing via the external condition, the portion of the pixel definition layer that is in contact with the light-emitting functional layer to be hydrophilic.
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公开(公告)号：US20220384758A1
公开(公告)日：2022-12-01
申请号：US16982063
申请日：2020-03-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wenhai MEI , Zhenqi ZHANG , Aidi ZHANG
Abstract: A quantum dot light-emitting device, a manufacturing method and a display device are provided. The quantum dot light-emitting device includes a substrate and a cathode arranged on the substrate; an electron transport layer arranged on one side of the cathode, away from the substrate, 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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30.发明申请公开(公告)号：US20220251446A1
公开(公告)日：2022-08-11
申请号：US17628594
申请日：2021-04-15
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wenhai MEI
Abstract: A quantum dot light-emitting structure, a manufacturing method thereof and a display apparatus. The manufacturing method includes: providing quantum dot solution, the quantum dot solution including a first quantum dot which surface is modified with a first ligand and a photo-ligand remover, and the first ligand being dissolved in a rinsing solvent; coating the quantum dot solution on a base substrate to form a first quantum dot light-emitting material layer; partially exposing the first quantum dot light-emitting material layer, so that the first quantum dot light-emitting material layer includes an exposed portion and an unexposed portion, the photo-ligand remover being configured to release a ligand remover under irradiation, to remove the first ligand in the exposed portion of the first quantum dot light-emitting material layer; and developing and rinsing the exposed first quantum dot light-emitting material layer by using the rinsing solvent, to form the first quantum dot light-emitting layer.
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