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公开(公告)号：US12289943B2
公开(公告)日：2025-04-29
申请号：US17465698
申请日：2021-09-02
Inventor： Dong Li , Yichi Zhang
IPC: H10K50/115 , C09K11/06 , H10K85/30
Abstract: Disclosed are a quantum dot material, a quantum dot light emitting device, a display apparatus and a manufacturing method. The quantum dot material includes: a quantum dot, an anionic ligand, and a linking group linking the quantum dot and the anionic ligand, wherein the anionic ligand is configured to bind to a ring molecule by electrostatic force.
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公开(公告)号：US20240412695A1
公开(公告)日：2024-12-12
申请号：US18813271
申请日：2024-08-23
Inventor： Tuo Sun , Ying Zhou , Yichi Zhang
IPC: G09G3/3233 , G09G3/32 , H10K59/121 , H10K59/131
Abstract: The display panel and a light emitting base plate are provided. The display panel includes a pixel circuit disposed on a base plate, wherein the pixel circuit includes a first driving circuit, a first light emitting device, a second light emitting device and a second driving circuit that are sequentially connected in series; the first driving circuit includes a first driving transistor, a source electrode of the first driving transistor is connected to a first power-supply terminal, and a drain electrode of the first driving transistor is connected to a first electrode of the first light emitting device; the second driving circuit includes a second driving transistor, a source electrode of the second driving transistor is connected to a second power-supply terminal, and a drain electrode of the second driving transistor is connected to a first electrode of the second light emitting device.
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公开(公告)号：US12031071B2
公开(公告)日：2024-07-09
申请号：US17246833
申请日：2021-05-03
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wenhai Mei , Yichi Zhang
IPC: C09K11/56 , G02B1/04 , G02B5/20 , B82Y20/00 , B82Y30/00 , B82Y40/00 , G03F7/039 , H10K50/115 , H10K50/15 , H10K50/16
CPC classification number: C09K11/565 , G02B1/04 , G02B5/20 , B82Y20/00 , B82Y30/00 , B82Y40/00 , G03F7/0392 , H10K50/115 , H10K50/15 , H10K50/16
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：US11981845B2
公开(公告)日：2024-05-14
申请号：US17421223
申请日：2020-10-30
Inventor： Dong Li , Yichi Zhang
IPC: C09K11/02 , B82Y20/00 , B82Y40/00 , H10K50/115
CPC classification number: C09K11/025 , H10K50/115 , B82Y20/00 , B82Y40/00
Abstract: Embodiments of the present disclosure disclose a quantum dot material and related applications. The quantum dot material includes: quantum dots, and ligands connected with the quantum dots, and further includes isolation units, wherein the isolation units are cyclic molecules, and the ligands are configured to bond with the cyclic molecules through electrostatic force, so that the quantum dots and the ligands are wrapped with the multiple isolation units; and the isolation units are configured to isolate the quantum dots.
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公开(公告)号：US20230037592A1
公开(公告)日：2023-02-09
申请号：US17790333
申请日：2021-09-01
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wei Huang , Shi Shu , Wei Li , Zhongyuan Sun , Qian Jin , Guangcai Yuan , Lu Wang , Yichi Zhang
Abstract: A display panel having a base substrate, a light emitting layer on a side of the base substrate, and a wavelength converting layer on a side of light emitting layer away from the base substrate is provided.The light emitting layer includes light emitting units and a first pixel defining layer defining the plurality of light emitting units, the wavelength converting layer includes wavelength converting units and a second pixel defining layer defining the wavelength converting units, each of the of wavelength converting units converts a wavelength of a light emitted by at least one of the light emitting units, wherein in a direction perpendicular to the base substrate, the second pixel defining layer has a thickness twice or more that of the first pixel defining layer. A method for manufacturing the display panel and a display device are also provided.
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Patent Agency Ranking
公开(公告)号：US20250160111A1
公开(公告)日：2025-05-15
申请号：US18729123
申请日：2023-11-13
Inventor： Yichi Zhang , Zhigao Lu , Jian Xu
IPC: H10K50/125
Abstract: A light emitting device is provided. The light emitting device includes a first electrode; a second electrode; and a first functional layer, a first quantum dots layer of a first color, a first auxiliary quantum dots layer, and a second functional layer between the first electrode and the second electrode. One or more first quantum dots of the first quantum dots layer of the first color is at least partially embedded in the first functional layer. A first functional material in the first functional layer is at least partially cross-linked.
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公开(公告)号：US11974448B2
公开(公告)日：2024-04-30
申请号：US17458782
申请日：2021-08-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jingwen Feng , Yichi Zhang
IPC: H10K50/16 , H10K50/115 , H10K71/00 , H10K102/00
CPC classification number: H10K50/166 , H10K50/115 , H10K71/00 , H10K2102/00 , H10K2102/351
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, at least one electron transport layer between the quantum dot light emitting layer and the first electrode, and an electron contribution layer between the electron transport layer of the at least one electron transport layer closest to the first electrode and the quantum dot light emitting layer; a material of the electron contribution layer includes a metal material. The embodiment of the present disclosure also provides a method for manufacturing the quantum dot light emitting diode and a display panel.
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公开(公告)号：US11968852B2
公开(公告)日：2024-04-23
申请号：US17427582
申请日：2020-09-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wenhai Mei , Yichi Zhang
IPC: H10K50/16 , H10K50/11 , H10K50/165 , H10K59/35 , H10K71/00 , H10K50/115 , H10K59/12 , H10K101/00 , H10K101/30 , H10K101/40 , H10K102/00
CPC classification number: H10K50/165 , H10K50/11 , H10K59/35 , H10K71/00 , H10K50/115 , H10K59/1201 , H10K2101/30 , H10K2101/40 , H10K2101/80 , H10K2102/00 , H10K2102/331
Abstract: A light-emitting device includes: a first electrode and a second electrode that are superposed; an emitting layer (EML) located between the first electrode and the second electrode; and an electron transport layer (ETL) located between the first electrode and the EML. The ETL includes a first surface proximate to the EML and a second surface proximate to the first electrode, oxygen vacancies is formed in the ETL, and a concentration of oxygen vacancies in the ETL gradually increases from the second surface to the first surface.
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公开(公告)号：US11877461B2
公开(公告)日：2024-01-16
申请号：US17296839
申请日：2020-08-20
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wenhai Mei , Yichi Zhang
CPC classification number: H10K50/115 , C09K11/06 , H10K50/15 , H10K50/16 , H10K71/80 , H10K85/141 , H10K85/40 , C09K2211/14
Abstract: Embodiments of the present disclosure provide a light emitting diode device, a display panel, a display device, and a manufacturing method. The light emitting diode device includes: a base substrate; a first electrode disposed on one side of the base substrate; a carrier functional layer disposed on one side, facing away from the base substrate, of the first electrode; a quantum dot light emitting layer disposed on one side, facing away from the first electrode, of the carrier functional layer, having a molecular chain structure inside, where the molecular chain structure is formed by atom transfer radical polymerization of a first reactant and a modified molecule, the first reactant undergoes atom transfer radical polymerization with the modified molecule through a ligand molecule A, and in an initial state, the modified molecule is connected to one surface, facing the quantum dot light emitting layer, of the carrier functional layer; and a second electrode disposed on one side, facing away from the carrier functional layer, of the quantum dot light emitting layer.
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公开(公告)号：US11069268B2
公开(公告)日：2021-07-20
申请号：US16639108
申请日：2019-03-08
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yanan Niu , Lei Chen , Zhongyuan Sun , Hongwei Tian , Wei Huang , Zhiqiang Jiao , Kuanjun Peng , Yichi Zhang
Abstract: A flexible display panel includes a plurality of light-emitting regions separated from each other, a respective one of the plurality of light-emitting regions including a light emitting element and an encapsulating structure encapsulating the light emitting element; and a plurality of dummy regions connecting the plurality of light-emitting regions, a respective one of the plurality of light-emitting regions having a larger thickness than a respective dummy region and including a plurality of driving wires. The flexible display panel further includes a detecting wire in the plurality of dummy regions and the plurality of light emitting regions.
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