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1.发明公开公开(公告)号：US20240315129A1
公开(公告)日：2024-09-19
申请号：US18273262
申请日：2021-12-22
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lei CHEN , Dan WANG , Bingyan LIANG , Xueqin CHEN , Dongxu ZHANG
IPC: H10K85/60 , C07D235/18 , C07D263/57 , C07D277/66 , C07D409/14 , C07D413/12 , C07D413/14 , C07D417/14 , C09K11/06 , H10K50/858
CPC classification number: H10K85/636 , C07D235/18 , C07D263/57 , C07D277/66 , C07D409/14 , C07D413/12 , C07D413/14 , C07D417/14 , C09K11/06 , H10K85/633 , C09K2211/1018 , H10K50/858 , H10K85/615 , H10K85/626 , H10K85/654 , H10K85/657 , H10K85/6572 , H10K85/6574 , H10K85/6576
Abstract: A structural general formula of a diarylamine compound is formula (I):
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公开(公告)号：US20240147751A1
公开(公告)日：2024-05-02
申请号：US18023691
申请日：2022-03-03
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yuqian SUN , Dongxu ZHANG
CPC classification number: H10K50/15 , H10K50/16 , H10K50/171 , H10K50/181 , H10K71/12 , H10K85/615 , H10K85/631 , H10K85/6572 , H10K85/6574 , H10K2101/30
Abstract: Disclosed in the embodiments of the present disclosure are a blue-light-emitting device and a manufacturing method therefor, and a display apparatus. The blue-light-emitting device comprises a hole transport layer, an electron blocking layer and a light-emitting layer, which are arranged in a stacked manner, wherein the electron blocking layer comprises a first material and a second material, the mobility of the first material is a first mobility, and the mobility of the second material is a second mobility; and the mobility of the hole transport layer is greater than the mobility of the first material, and the mobility of the hole transport layer is greater than the mobility of the second material; and the general structural formula of the material of the hole transport layer is formula (I), the general structural formulae of the first material and the second material are both formula (II), the first material and the second material have different bond energies, and n is equal to 0 or 1.
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公开(公告)号：US20230413666A1
公开(公告)日：2023-12-21
申请号：US18249997
申请日：2020-12-08
Applicant: BOE Technology Group Co., Ltd.
Inventor： Rongrong GAO , Xinghua LIU , Dongxu ZHANG
CPC classification number: H10K85/654 , H10K71/16 , H10K85/6574 , H10K85/615 , H10K85/624 , H10K85/40 , H10K85/6576 , H10K85/657 , H10K50/16
Abstract: Embodiments of the present invention provide an OLED device and a manufacturing method. The OLED device comprises: an anode; a hole transport layer; a light-emitting layer; an electron transport layer comprising a first electron transport body and a second electron transport body, wherein the first electron transport body has a spiral structure, the second electron transport body has a continuous π conjugated system formed by fusing a dioxin structure and a benzoheterocyclic structure, the electron mobility of the first electron transport body is less than the electron mobility of the second electron transport body, the electron mobility of the second electron transport body is 10−5-10−8 cm2V−1s−1@5000 V1/2/m1/2, the triplet-state energy level of the first electron transport body is greater than the triplet-state energy level of the second electron transport body, and the triplet-state energy level of the first electron transport body is greater than 2.4 eV; and a cathode.
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4.发明公开公开(公告)号：US20230413591A1
公开(公告)日：2023-12-21
申请号：US18036153
申请日：2020-11-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yang LIU , Xueqin CHEN , Yuqian SUN , Lixia QIU , Dongxu ZHANG
CPC classification number: H10K50/12 , H10K50/181 , H10K71/60 , H10K85/633 , H10K85/622 , H10K85/6574 , H10K2101/40
Abstract: An organic light-emitting diode includes: an anode, a cathode and a light-emitting layer between the anode and the cathode. The light-emitting layer has a blue light host material; on the side of the light-emitting layer facing the anode, an electron blocking layer is provided in the direction away from the light-emitting layer; the electron blocking layer has a hole material; and the hole material has a structural formula as shown in the following formula (I), and the blue light host material has a structural formula as shown in the following formula (II).
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公开(公告)号：US20230018040A1
公开(公告)日：2023-01-19
申请号：US17631371
申请日：2020-12-15
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Bingyan LIANG , Siqi WANG , Dongxu ZHANG
Abstract: A D-A type organic light-emitting material includes a donor moiety and an acceptor moiety. The donor moiety is represented as follows: L is selected from any of aryl, heteroaryl, fused aryl and fused heteroaryl. When L is selected from any of aryl and heteroaryl, aryl and heteroaryl each have one or more substituents each selected from any of deuterium, tert-butyl, phenyl, cyano and methylimino, and at least one substituent is selected from cyano and methylimino. When L is selected from any of fused aryl and fused heteroaryl, fused aryl and fused to heteroaryl each have or do not have a substituent. When fused aryl and fused heteroaryl each have a substituent, the substituent is selected from any of deuterium, tert-butyl, phenyl, cyano and methylimino. The acceptor moiety is selected from any of a substituted or unsubstituted fused aromatic rings and a substituted or unsubstituted fused heterocyclic ring.
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Patent Agency Ranking
公开(公告)号：US20240425535A1
公开(公告)日：2024-12-26
申请号：US18703729
申请日：2023-05-18
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lei CHEN , Xueqin CHEN , Bingyan LIANG , Dongxu ZHANG
Abstract: A phosphoryl derivative, the use, an organic light-emitting diode, and a display apparatus. A phosphoryl group of the phosphoryl derivative is directly bonded to two substituted or unsubstituted aryl groups, and at least is directly bonded to or is indirectly bonded via a bridge group to a non-conjugated substituent group.
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公开(公告)号：US20240334817A1
公开(公告)日：2024-10-03
申请号：US18577245
申请日：2022-07-01
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lixia QIU , Lei CHEN , Dongxu ZHANG , Bingyan LIANG
IPC: H10K85/60 , H10K50/12 , H10K50/125 , H10K85/30 , H10K101/25 , H10K101/30 , H10K101/40 , H10K102/00
CPC classification number: H10K85/633 , H10K50/12 , H10K50/125 , H10K85/324 , H10K85/342 , H10K85/346 , H10K85/371 , H10K85/623 , H10K85/636 , H10K85/6574 , H10K85/6576 , H10K2101/25 , H10K2101/30 , H10K2101/40 , H10K2102/351
Abstract: An organic electroluminescent device, a display panel, and a display device are disclosed. The organic electroluminescent device includes: an anode and a cathode disposed opposite to each other, a light emitting layer located between the anode and the cathode, an electron blocking layer located between the light emitting layer and the anode, and a hole transport layer located between the electron blocking layer and the anode. The light emitting layer includes an exciplex formed by mixing an electron-type host material and a hole-type host material, and a guest material with which the exciplex is doped. The electron mobility of the hole transport layer is greater than that of the electron blocking layer.
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公开(公告)号：US20230255107A1
公开(公告)日：2023-08-10
申请号：US18014378
申请日：2021-11-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu ZHANG , Yuqian SUN , Rongrong GAO
IPC: H10K85/60 , H10K50/18 , H10K50/858
CPC classification number: H10K85/6572 , H10K50/181 , H10K85/633 , H10K85/658 , H10K85/636 , H10K85/657 , H10K50/858 , H10K2101/30
Abstract: A light-emitting device, comprising: a first electrode and a second electrode arranged in a stacked manner; and multiple functional layers provided between the first electrode and the second electrode. The multiple functional layers comprise a light-emitting layer, at least two material layers having a hole transport function between the light-emitting layer and the first electrode, and at least one material layer having an electron transport function between the light-emitting layer and the second electrode. The at least two material layers having the hole transport function comprise an electron blocking layer, and the material of the light-emitting layer comprises a guest material. The difference between the LUMO energy level of the material of the electron blocking layer and the LUMO energy level of a host material is greater than or equal to a threshold. Under the same test condition, the ratio of the magnitude of the value of a hole mobility of the material of the electron blocking layer to the magnitude of the value of an electron mobility of the material of the at least one material layer having the electron transport function is greater than or equal to 1.
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公开(公告)号：US20220418059A1
公开(公告)日：2022-12-29
申请号：US17606840
申请日：2020-12-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu ZHANG , Rongrong GAO , Lixia QIU , Yang LIU
Abstract: The present disclosure provides a blue organic electroluminescence device, a display panel, and a display apparatus. A blue organic electroluminescence device includes a light-emitting layer having a matrix material and a blue fluorescent doping material doped in the matrix material, where dipole moments of the matrix material and the blue fluorescent doping material are both 0 to 1 D, which can ensure higher energy transfer efficiency and charge balance, ensure that an emission spectrum is a narrow spectrum, and thus have better color purity and higher external quantum Efficiency (EQE) to obtain the blue organic electroluminescence devices with high color purity and high luminous efficiency.
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公开(公告)号：US20220085314A1
公开(公告)日：2022-03-17
申请号：US17344864
申请日：2021-06-10
Applicant: BOE Technology Group Co., Ltd.
Inventor： Rongrong GAO , Dongxu ZHANG , Yuqian SUN
Abstract: A light emitting device and a displaying device. The light emitting device includes a luminescent layer, wherein the luminescent layer includes a thermally activated delayed-fluorescence material; the thermally activated delayed-fluorescence material includes a donor group, a receptor group and a linking group; the donor group and the receptor group bond to the linking group; and a torsion angle between a plane where the donor group is located and a plane where the linking group is located is θ1, and a torsion angle between a plane where the receptor group is located and the plane where the linking group is located is θ2; wherein θ1 and θ2 enable an energy-level difference between a singlet-state energy level of the thermally activated delayed-fluorescence material and a triplet-state energy level of the thermally activated delayed-fluorescence material to be less than a constant quantity T, wherein 0 eV
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