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公开(公告)号：US11778857B2
公开(公告)日：2023-10-03
申请号：US17486559
申请日：2021-09-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xing Fan , Lingjun Dai , Chao Kong
IPC: H01L51/50 , H10K50/858 , H10K50/13 , H10K50/814 , H10K50/824
CPC classification number: H10K50/858 , H10K50/13 , H10K50/814 , H10K50/824
Abstract: The present disclosure provides an organic electroluminescent device and a display panel. The organic electroluminescent device includes a first electrode, a second electrode and a light-emitting layer disposed between the first electrode and the second electrode; a functional electrode is disposed on a side of at least one of the first electrode and the second electrode away from the light-emitting layer; the functional electrode includes a first layer-stacked structure including a plurality of first light-transmitting layers and at least one second light-transmitting layer; the first and second light-transmitting layers are stacked alternately; in the first layer-stacked structure, both the layer closest to the light-emitting layer and the layer farthest from the light-emitting layer are the first light-transmitting layers; a refractive index of the first light-transmitting layer is greater than a refractive index of the second light-transmitting layer.
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公开(公告)号：US11296158B2
公开(公告)日：2022-04-05
申请号：US16632210
申请日：2018-11-28
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lujiang Huangfu , Xing Fan , Zheng Liu , Yan Fan , Liangjian Li
Abstract: A pixel structure. The pixel structure includes a base substrate; an insulating island on the base substrate; a light emitting element on a side of the insulating island away from the base substrate; an insulating layer on the base substrate and surrounding the insulating island, the insulating layer spaced apart from the insulating island by a groove; and a reflective layer on a lateral side of the insulating layer surrounding a periphery of the light emitting element, and configured to reflect light laterally emitted from the light emitting element to exit from a light emitting surface of the pixel structure. The insulating layer has a height relative to a main surface of the base substrate greater than a height of the insulating island relative to the main surface of the base substrate. The reflective layer is in direct contact with the base substrate in the groove.
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13.发明授权公开(公告)号：US10886495B2
公开(公告)日：2021-01-05
申请号：US16209260
申请日：2018-12-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yansong Li , Haidong Wu , Na Li , Xiaobo Du , Guanyin Wen , Xing Fan
Abstract: An OLED display substrate, a manufacturing method thereof, and a display device are provided. The OLED display substrate includes a reflective cathode layer, an organic light-emitting layer, a transparent anode layer and a high reflection layer sequentially arranged on a substrate, and the high reflection layer has reflectivity greater than a threshold.
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公开(公告)号：US10811491B2
公开(公告)日：2020-10-20
申请号：US16541315
申请日：2019-08-15
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xing Fan
Abstract: A display substrate and a method of manufacturing the same, and a display panel are provided. The display substrate includes: a base substrate, and a first electrode, a first auxiliary electrode, a boss, a pixel definition layer, an organic functional layer and a second electrode provided on the base substrate. The first auxiliary electrode includes a first conductive connection part contacting a side surface of the boss; the pixel definition layer is provided with a pixel accommodating hole and a slot; the organic functional layer is electrically connected with the first electrode through the pixel accommodating hole; and the second electrode is electrically connected with the first conductive connection part through the slot, so that the second electrode is connected with the first auxiliary electrode in parallel.
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公开(公告)号：US12232343B2
公开(公告)日：2025-02-18
申请号：US17638195
申请日：2021-04-26
Applicant: BOE Technology Group Co., Ltd.
Inventor： Zhihui Zhang , Yan Fan , Xing Fan , Shu Jing , Huameng Liu , Kuo Shen
IPC: H01L51/50 , H10K50/11 , H10K50/16 , H10K50/858 , H10K71/12 , H10K101/00 , H10K102/00
Abstract: An organic light emitting device, a preparation method therefor, and a display apparatus are provided. The organic light emitting device includes an anode, a cathode, and a light emitting layer and an electron transport layer arranged between the anode and the cathode. The electron transport layer is arranged between the light emitting layer and the cathode. The electron transport layer includes a first host material and a second host material. A mixing ratio of the first host material to the second host material of one side of the electron transport layer close to the light emitting layer is different from a mixing ratio of the first host material to the second host material of one side of the electron transport layer away from the light emitting layer.
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Patent Agency Ranking
公开(公告)号：US12219819B2
公开(公告)日：2025-02-04
申请号：US17633219
申请日：2021-04-26
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xing Fan , Shantao Chen , Xin Li , Hao Gao , Cheng Han , Yansong Li
IPC: H10K59/122 , H10K59/12 , H10K59/80 , H10K102/00
Abstract: A display substrate includes a first electrode layer, a pixel define layer, an organic light-emitting layer, a second electrode layer and a first encapsulation layer which are sequentially disposed away from an base substrate. The pixel define layer has a plurality of openings, at least one of which exposes the first electrode layer. The pixel define layer has a first climbing part and a second climbing part close to the edge of at least one opening, the distance from a surface of the second climbing part away from the base substrate to the base substrate is greater than the distance from a surface of the first climbing part away from the base substrate to the base substrate, and the slope angle of the first climbing part is different from that of the second climbing part.
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公开(公告)号：US10454073B2
公开(公告)日：2019-10-22
申请号：US15747838
申请日：2017-06-30
Applicant: BOE Technology Group Co., Ltd.
Abstract: An organic electroluminescence display substrate and a fabrication method thereof, a display panel and a display device are provided. The organic electroluminescence display substrate includes a pixel array and a light extraction layer. The pixel array includes a plurality of pixels, each pixel includes a first sub-pixel emitting light of a first color, and each first sub-pixel includes an organic electroluminescence element. The light extraction layer covers on the pixel array, and at least includes a plurality of first light extraction units and a plurality of second light extraction units having different optical properties. A cathode light-emission side of each first sub-pixel is covered by at least one first light extraction unit and at least one second light extraction unit, or the cathode light-emission sides of two adjacent first sub-pixels are respectively covered by at least one first light extraction unit and at least one second light extraction unit.
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18.发明申请公开(公告)号：US20190019991A1
公开(公告)日：2019-01-17
申请号：US15747838
申请日：2017-06-30
Applicant: BOE Technology Group Co., Ltd.
Abstract: An organic electroluminescence display substrate and a fabrication method thereof, a display panel and a display device are provided. The organic electroluminescence display substrate includes a pixel array and a light extraction layer. The pixel array includes a plurality of pixels, each pixel includes a first sub-pixel emitting light of a first color, and each first sub-pixel includes an organic electroluminescence element. The light extraction layer covers on the pixel array, and at least includes a plurality of first light extraction units and a plurality of second light extraction units arranged in parallel and having different optical properties. A cathode light-emission side of each first sub-pixel is covered by at least one first light extraction unit and at least one second light extraction unit, or the cathode light-emission sides of two adjacent first sub-pixels are respectively covered by at least one first light extraction unit and at least one second light extraction unit.
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公开(公告)号：US12150348B2
公开(公告)日：2024-11-19
申请号：US17598894
申请日：2020-12-23
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xin Li , Xing Fan , Jing Yang , Jiangnan Lu , Yansong Li
IPC: H10K71/00 , H10K50/86 , H10K59/122 , H10K59/12
Abstract: Provided are a display substrate, a preparation method thereof and a display apparatus. The display substrate includes a substrate and a plurality of pixel units disposed in matrix on the substrate, wherein each pixel unit includes a plurality of sub-pixels, and each sub-pixel includes a driving structure layer, a first electrode and a first pixel define layer on the driving structure layer, and a light absorption layer disposed on the first pixel define layer. The first pixel define layer includes a plurality of first barriers and first pixel openings disposed between the first barriers, the first pixel opening exposes at least part of the first electrode, and the first pixel opening includes a first surface close to the first electrode, a second surface opposite to the first surface and a first sidewall between the first and second surfaces.
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公开(公告)号：US12135489B2
公开(公告)日：2024-11-05
申请号：US17785034
申请日：2021-08-04
Applicant: BOE Technology Group Co., Ltd.
Inventor： Cheng Han , Xin Li , Xing Fan , Qixiao Wu , Songquan Wu
IPC: G02F1/137 , G02F1/13 , G02F1/1334 , G02F1/1337 , G02F1/1343 , G02F1/1347
Abstract: An anti-peeping panel, a preparation method, a driving method, and a display device. The anti-peeping panel includes: a first substrate; a second substrate; a composite material layer; first and second transparent electrode layers. The first and second transparent electrode layers includes first and second elongate electrodes respectively; orthographic projections of at least one first and second elongate electrode on the first substrate have a first overlapping region; the composite material layer includes first and second composite regions, the second composite region overlaps with the first overlapping region; when an electric field of first frequency exists between first and second elongate electrodes, the second composite region shades light, the first composite region transmits light; when an electric field of second frequency exists between first and second elongate electrodes, the second composite region transmits light, the first composite region transmits light; the first frequency is different from the second frequency.
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