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公开(公告)号：US20240298510A1
公开(公告)日：2024-09-05
申请号：US17919286
申请日：2021-11-19
Inventor： Haowei WANG , Zhuo LI , Jingwen FENG
IPC: H10K71/12 , C09K11/06 , H10K50/115 , H10K59/35
CPC classification number: H10K71/12 , C09K11/06 , H10K50/115 , H10K59/35
Abstract: A quantum dot film includes a target color quantum dot film and a residual non-target color quantum dot film, wherein a ligand for the target color quantum dot of the target color quantum dot film is an oil-soluble ligand, and a ligand for the residual non-target color quantum dot of the residual non-target color quantum dot film is selected from any one or more of halogen ions and short-chain organic ligands whose carbon chain length is in a range of 2 to 18 carbons.
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公开(公告)号：US20240244954A1
公开(公告)日：2024-07-18
申请号：US17918568
申请日：2021-09-25
Inventor： Zhuo CHEN , Wenhai MEI , Zhuo LI
IPC: H10K85/30 , B82Y20/00 , B82Y40/00 , C07F19/00 , C09K11/02 , C09K11/88 , H10K50/115 , H10K59/35 , H10K71/13
CPC classification number: H10K85/381 , C07F19/005 , C09K11/025 , C09K11/883 , H10K71/13 , B82Y20/00 , B82Y40/00 , H10K50/115 , H10K59/35
Abstract: The present disclosure provides a quantum dot ligand, a quantum dot-ligand system and a quantum dot material, belonging to the field of display technology. The quantum dot ligand includes an X group, a Y group and a Z group. The Y group is configured to provide at least two binding sites, among which at least one binding site is configured to bind with the X group, and the remaining binding site is configured to bind with the Z group. The X group is a coordination group configured to form a coordination bond with a surface of a quantum dot. The Z group is a saturated 3- to 5-membered heterocyclic group containing O or S.
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公开(公告)号：US20250013147A1
公开(公告)日：2025-01-09
申请号：US18277589
申请日：2022-03-18
Abstract: The disclosure provides a quantum dot mixture, a quantum dot light emitting layer and a preparation method thereof, relates to the field of display technology. The preparation method of quantum dot light emitting layer includes: providing a substrate; forming a quantum dot film layer on one side of the substrate, which comprises a first quantum dot body-first ligand and a second quantum dot body-second ligand; exposing a predetermined region of the substrate to form a cross-linkage or a salt insoluble in the developer via a reaction between the first ligand and the second ligand in the predetermined region of the quantum dot film layer; and developing to remove the quantum dot film layer in the non-predetermined region of the substrate, and obtain the quantum dot light emitting layer. The disclosure provides a basis for the formation of the quantum dot light emitting layer using photolithography technology.
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公开(公告)号：US20240395993A1
公开(公告)日：2024-11-28
申请号：US18648499
申请日：2024-04-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ming YANG , Seungwoo HAN , Zhuo LI , Dingchang ZHANG , Xuan FENG , Hui ZHANG , Liwei LIU
IPC: H01L33/62 , G09G3/32 , G09G3/3233 , H01L25/16 , H01L27/12
Abstract: A pixel circuit includes a pixel driving circuit and a bonding unit connected thereto. The bonding unit includes a first bonding terminal group and at least one second bonding terminal group that are arranged in parallel, and the first bonding terminal group and a second bonding terminal group are configured to bond light-emitting devices. The first bonding terminal group includes a first terminal and a second terminal, and the second bonding terminal group includes a third terminal and a fourth terminal. The first terminal and the third terminal are connected, and are both connected to the pixel driving circuit; the second terminal and the fourth terminal are connected, and are both connected to a set voltage signal line.
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公开(公告)号：US20240221851A1
公开(公告)日：2024-07-04
申请号：US17996293
申请日：2021-11-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yunsik IM , Shunhang ZHANG , Fuqiang LI , Changfeng LI , Liwei LIU , Hehe HU , Ce NING , Hui ZHANG , Hongrun WANG , Zhuo LI
CPC classification number: G11C19/28 , G09G3/20 , G09G2310/0267 , G09G2310/0286
Abstract: The present disclosure provides a shift register unit, a gate driving circuit and a display device. The shift register unit provided by the present disclosure includes: an input sub-circuit, an output sub-circuit, at least one pull-down control sub-circuit, at least one pull-down sub-circuit, at least one first noise reduction sub-circuit, and a reverse bias sub-circuit; the reverse bias sub-circuit is configured to control transistors in at least part of sub-circuits connected to a pull-up node to be in a reverse bias state through a power voltage signal in response to a potential of the pull-up node, or control the transistors in at least part of the sub-circuits connected to the pull-up node to be in the reverse bias state through a cascade signal in response to a potential of a cascade signal terminal.
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Patent Agency Ranking
公开(公告)号：US20250081764A1
公开(公告)日：2025-03-06
申请号：US18279217
申请日：2022-11-28
Applicant: BOE Technology Group Co., Ltd.
Inventor： Ming YANG , Xuan FENG , Liwei LIU , Zhuo LI , Hui ZHANG , Seungwoo HAN , Yanliu SUN
IPC: H10K59/131
Abstract: A display panel and a display apparatus. The display panel includes a substrate, and pixel islands (Pi) arranged in an array on the substrate, and at least one pixel island (Pi) includes a plurality of pixel drive circuits (10) and a plurality of light emitting devices, wherein a light emitting device includes a first electrode (20), and at least one pixel drive circuit (10) is electrically connected with at least one light emitting device; first electrodes (20) of a plurality of light emitting devices on a same pixel island are arranged in a first direction, and an orthographic projection of a first electrode (20) of at least one light emitting device on the substrate is at least partially overlapped with an orthographic projection of at least two pixel drive circuits (10) on the substrate.
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公开(公告)号：US20240381751A1
公开(公告)日：2024-11-14
申请号：US18249556
申请日：2022-04-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xu YUAN , Xiaoyuan ZHANG , Zhuo CHEN , Zhuo LI , Di ZHANG
IPC: H10K59/95 , H10K50/115 , H10K71/12 , H10K71/20 , H10K71/60
Abstract: A light-emitting substrate includes a substrate and a first light-emitting device. The first light-emitting device includes a first electrode, a first functional layer, a first light-emitting pattern and a second electrode that are sequentially disposed in a direction away from the substrate. The first functional layer is in contact with the first light-emitting pattern. The first light-emitting pattern includes a first light-emitting material. The first light-emitting material includes first light-emitting particles and first ligands combined with the first light-emitting particles. The first functional layer includes a first functional material. The first functional material includes first functional particles and second ligands combined with the first functional particles. A development characteristic of the first ligands is same as a development characteristic of the second ligands.
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公开(公告)号：US20240267680A1
公开(公告)日：2024-08-08
申请号：US18021544
申请日：2022-05-27
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yanling HAN , Wenqu LIU , Qi YAO , Lei WANG , Hua HUANG , Zhuo LI , Yonggang CAO , Yue GOU , Yaqian JI , Qianyan LI , Yingzi WANG
CPC classification number: H04R7/10 , H04R31/003
Abstract: Provides are an ultrasonic transducer, a fabrication method thereof and an electronic device. The ultrasonic transducer includes: an array substrate having a groove, a bottom electrode and an insulation layer, wherein an orthographic projection of the groove on the array substrate is within an orthographic projection of the bottom electrode on the array substrate, and the insulation layer covers the bottom electrode; and an opposite substrate, the opposite substrate and the array substrate are oppositely arranged and are attached to each other, the opposite substrate and the array substrate form a cavity in the groove, the opposite substrate has a top electrode and a vibrating diaphragm layer which are arranged in stack, and an orthographic projection of the top electrode on the array substrate is within the orthographic projection of the bottom electrode on the array substrate.
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9.发明公开公开(公告)号：US20240237508A1
公开(公告)日：2024-07-11
申请号：US17801723
申请日：2021-09-24
Inventor： Jingwen FENG , Zhuo LI
CPC classification number: H10K85/381 , C09K11/025 , C09K11/0883 , C09K11/703 , C09K11/883 , H10K50/115 , B82Y20/00 , B82Y40/00
Abstract: The present application provides a quantum dot film layer, a quantum dot light emitting device and a manufacturing method therefor to improve the balance of carriers. The quantum dot film layer includes a first quantum dot layer and a second quantum dot layer. The first quantum dot layer includes first quantum dots, and first photosensitive ligands connected with surfaces of the first quantum dots. The second quantum dot layer includes second quantum dots, and second non-photosensitive ligands connected with surfaces of the second quantum dots. The second quantum dots are the same as the first quantum dots.
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公开(公告)号：US20240224559A1
公开(公告)日：2024-07-04
申请号：US17921087
申请日：2021-12-15
Inventor： Tieshi WANG , Zhuo CHEN , Zhuo LI , Xu YUAN , Di ZHANG
IPC: H10K50/115 , C09K11/06 , H10K59/35 , H10K71/15 , H10K85/10
CPC classification number: H10K50/115 , C09K11/06 , H10K59/35 , H10K71/15 , H10K85/141 , H10K85/151
Abstract: A light emitting device and a fabricating method thereof, and a light emitting apparatus. The light emitting device includes: a substrate, and an assisting layer and a quantum-dot layer that are provided in stack on one side of the substrate, and the assisting layer is close to the substrate; a material of the assisting layer includes a non-polar polymer; and the quantum-dot layer includes quantum dots and a first ligand material coordinated to the quantum dots, and a property of the first ligand material changes by an effect of illumination, so that a solubility of the quantum-dot layer in an organic solvent changes.
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