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公开(公告)号：US20240397739A1
公开(公告)日：2024-11-28
申请号：US18694414
申请日：2023-08-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Abstract: A light-emitting device comprises a first electrode, at least two light-emitting units and a second electrode which are sequentially stacked in a first direction. The at least two light-emitting units comprise a first light-emitting unit and a second light-emitting unit, the second light-emitting unit being located between the first light-emitting unit and the second electrode. At least one light-emitting unit comprises a light-emitting layer and an exciton blocking layer located on the side of the light-emitting layer close to the first electrode; the exciton blocking layer comprises a first sub-layer and a second sub-layer which are stacked in the first direction; the first sub-layer is located between the second sub-layer and the light-emitting layer; and in the first direction, the thickness of the first sub-layer is smaller than that of the second sub-layer, and the highest occupied molecular orbital energy level of the first sub-layer is higher than the highest occupied molecular orbital energy level of the second sub-layer. The light-emitting device provided by the present disclosure can enable exciton recombination regions of the light-emitting layer corresponding to each light-emitting unit to get close as much as possible, thereby improving light-emitting efficiency of the light-emitting device.
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42.发明公开公开(公告)号：US20240138180A1
公开(公告)日：2024-04-25
申请号：US17768265
申请日：2021-05-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Congcong JIA , Lei CHEN , Kun MA
CPC classification number: H10K50/181 , C09K11/02 , C09K11/06 , H10K50/17 , H10K71/12 , H10K85/111 , H10K85/311 , H10K85/324 , H10K85/60 , H10K85/615 , H10K85/631 , H10K85/654 , H10K85/6572 , H10K2102/351
Abstract: The present disclosure provides an organic light-emitting diode, a method of manufacturing the same, and an organic light-emitting diode display apparatus. The organic light-emitting diode includes an anode; a hole injection layer; a hole transport layer; an electron blocking layer; an organic luminescent layer; a hole blocking layer; an electron transport layer; and a cathode, wherein a first composite layer is provided between the electron blocking layer and the organic luminescent layer, and the first composite layer includes a material of the electron blocking layer and a host material of the organic luminescent layer.
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公开(公告)号：US20230269957A1
公开(公告)日：2023-08-24
申请号：US17921318
申请日：2021-07-05
Applicant: BOE Technology Group Co., Ltd.
CPC classification number: H10K50/16 , H10K50/12 , H10K50/18 , H10K59/35 , H10K2101/30
Abstract: An organic electroluminescent device, a display panel and a display apparatus. The organic electroluminescent device comprises: an anode and a cathode, which are arranged opposite each other; an organic electroluminescent layer, which is located between the anode and the cathode; a hole blocking layer, which is located between the organic electroluminescent layer and the cathode; and an electron transport layer, which is located between the hole blocking layer and the cathode, wherein the organic electroluminescent layer comprises: an exciplex formed by means of mixing an electron-type light-emitting host material and a hole-type light-emitting host material, and a light-emitting guest material doped in the exciplex; and the electron mobility of the electron transport layer is greater than that of the hole blocking layer, and the electron mobility of the hole blocking layer is greater than that of the electron-type light-emitting host material.
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公开(公告)号：US20230141206A1
公开(公告)日：2023-05-11
申请号：US17920686
申请日：2021-06-08
Applicant: BOE Technology Group Co., Ltd.
CPC classification number: H10K85/615 , H10K85/6574 , H10K85/6576 , H10K85/6572 , H10K85/636 , H10K85/40 , H10K2101/30
Abstract: The present disclosure provides an organic light-emitting diode structure and a display device. The electron blocking layer, the luminescent layer and the hole blocking layer in the organic light-emitting diode structure satisfy: HOMOhost−HOMOEBL≤0.3 eV, LUMOhost>LUMOHBL, and HOMOHBL−HOMOhost≥0.1 eV, wherein HOMO is the highest occupied molecular orbital, LUMO is the lowest unoccupied molecular orbital, host refers to the host material, EBL refers to the electron blocking layer, and HBL refers to the hole blocking layer.
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公开(公告)号：US20230125001A1
公开(公告)日：2023-04-20
申请号：US17610690
申请日：2021-01-26
Applicant: BOE Technology Group Co., Ltd.
Inventor： Kun MA , Lei CHEN , Rongrong GAO
Abstract: The present disclosure provides an organic light emitting device, including a first electrode, a second electrode and an emitting layer disposed between the first electrode and the second electrode. A hole transporting layer is disposed between the first electrode and the emitting layer. An electron transporting layer is disposed between the second electrode and the emitting layer. The ratio of the hole mobility of the hole transporting layer to the electron mobility of the electron transporting layer is about 10 to 500.
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Patent Agency Ranking
公开(公告)号：US20220367826A1
公开(公告)日：2022-11-17
申请号：US17432161
申请日：2020-11-19
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Abstract: The present disclosure provides an organic light-emitting diode and a display panel, the organic light-emitting diode including: a first electrode, a second electrode, a light-emitting layer, a hole blocking layer and an electron transport layer; the first electrode and the second electrode are oppositely arranged; the light-emitting layer is between the first electrode and the second electrode; the hole blocking layer is between the light-emitting layer and the second electrode; the electron transport layer is between the hole transport layer and the second electrode, wherein the energy level difference between the HOMO energy level of the hole blocking layer and the HOMO energy level of the light-emitting layer is larger than or equal to 0.1 eV, and the energy level difference between the HOMO energy level of the electron transport layer and the HOMO energy level of the hole blocking layer is larger than or equal to 0.1 eV.
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公开(公告)号：US20220320468A1
公开(公告)日：2022-10-06
申请号：US17526867
申请日：2021-11-15
Inventor： Junming ZHU , Lei CHEN , Kun MA , Rongrong GAO , Juncong LI
IPC: H01L51/52
Abstract: A display substrate and a display device are provided. The display substrate includes: a base substrate; and a light-emitting element arranged on the base substrate, and including a first electrode, an organic functional layer and a second electrode arranged sequentially in that order in a direction away from the base substrate. The light-emitting element includes a first surface proximate to the base substrate, a second surface distal to the base substrate, and a side surface arranged between the first surface and the second surface. The display substrate further includes a reflection layer covering at least a part of the side surface and configured to reflect light from the organic functional layer.
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公开(公告)号：US20220320451A1
公开(公告)日：2022-10-06
申请号：US17512547
申请日：2021-10-27
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lei CHEN , Xueqin CHEN , Yuqian SUN
IPC: H01L51/50
Abstract: The present disclosure provides a light emitting device, a display substrate and a display equipment. The light emitting device includes a hole injection layer, a hole transport layer, an electron blocking layer, a light emitting layer and an electron injection layer that are stacked in sequence; the light emitting layer includes a plurality of light emitting units, and the wavelengths of lights emitted by at least two of the plurality of light emitting units are different from each other; a hole mobility of the electron blocking layer is greater than or equal to a hole mobility of the hole injection layer or the hole transport layer; and a square resistance of the hole injection layer and a square resistance of the hole transport layer are both greater than or equal to 5×1010 Ω/sq.
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公开(公告)号：US20210151435A1
公开(公告)日：2021-05-20
申请号：US16642723
申请日：2019-03-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhi WANG , Feng GUAN , Guangcai YUAN , Chen XU , Lei CHEN
IPC: H01L27/092 , H01L29/786 , H01L29/66 , H01L21/8238
Abstract: The disclosure relates to a CMOS structure and a manufacturing method thereof. The CMOS structure includes a substrate and an N-type TFT and a P-type TFT on the substrate. The N-type TFT includes a first gate electrode, a first active layer, and a first gate dielectric layer therebetween. The first active layer includes a first semiconductor layer, a second semiconductor layer of the N-type, and a third semiconductor layer of the N-type which are located at opposite ends of the first semiconductor layer and sequentially stacked in a direction away from the first gate dielectric layer. An N-type doping concentration of the second semiconductor layer is smaller than that of the third semiconductor layer. The P-type TFT includes a fifth semiconductor layer and a sixth semiconductor layer. A P-type doping concentration of the fifth semiconductor layer is smaller than that of the sixth semiconductor layer.
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公开(公告)号：US20200381192A1
公开(公告)日：2020-12-03
申请号：US16495276
申请日：2019-04-24
Inventor： Lei CHEN
Abstract: The present disclosure relates to a button structure and a display device having the button structure. The button structure includes a housing, a function control substrate, a mechanical button and a remote control module. The housing has a reception space and a connection structure, is detachably connected to an electronic device through the connection structure, and has an installation surface to be docked to the electronic device, the installation surface is provided with a cable hole which communicates with the reception space, the electronic device is provided with a hole corresponding to the cable hole. The function control substrate is provided within the reception space and is connected with a cable, which extends into the electronic device via the cable hole and the hole and is connected to an electronic element inside the electronic device.
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