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公开(公告)号：US20220293702A1
公开(公告)日：2022-09-15
申请号：US17537622
申请日：2021-11-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaobo DU , Yansong LI , Guanyin WEN
Abstract: A light-emitting substrate includes a base substrate, a pixel defining layer, a first electrode layer and a light-emitting functional layer. The pixel defining layer has a plurality of opening portions; the first electrode layer includes a plurality of first electrodes, at least a part of each first electrode is exposed to one of the opening portions and constitutes an accommodating portion with the opening portion; the light-emitting functional layer includes a plurality of functional sub-layers, at least one of which is a first functional sub-layer, the first functional sub-layer includes a plurality of functional patterns, each of which is located in one of the accommodating portions and is conformal to a surface of the accommodating portion, and a distance from an edge of the functional pattern to the base substrate is smaller than or equal to a distance from an edge of the accommodating portion to the base substrate.
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2.发明申请公开(公告)号：US20190326546A1
公开(公告)日：2019-10-24
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：US20180246259A1
公开(公告)日：2018-08-30
申请号：US15758095
申请日：2015-06-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaobo DU
Abstract: A display panel producing frame-free image displays is provided. The display panel includes a display substrate (1) and an optical device (2) in a light illuminating side of the display substrate (1). The display substrate (1) includes frame edge regions (11) and a display region (12) abutting the frame edge regions (11). The display substrate (1) is curved at the frame edge regions (11). The optical device (2) is above the display region (12) and the frame edge regions (11), and changes a direction of light illuminated by the display substrate (1) such that images displayed through the display region produce a frame-free display.
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公开(公告)号：US20240389379A1
公开(公告)日：2024-11-21
申请号：US18693532
申请日：2023-07-31
Applicant: BOE Technology Group Co., Ltd.
Inventor： Hui ZHOU , Yansong LI , Xiaobo DU , Guanyin WEN , Shuyun XU
IPC: H10K50/19 , H10K50/16 , H10K50/165 , H10K85/30 , H10K101/30 , H10K101/40
Abstract: Disclosed is a light-emitting device including a first electrode; a second electrode; a plurality of light-emitting units; and a charge separation/generation unit disposed between adjacent light-emitting units. Each charge separation/generation unit includes a first charge transmission sub-unit, a first charge generation sub-unit, a second charge generation sub-unit, and a second charge transmission sub-unit, sequentially arranged in a direction from the first electrode to the second electrode, the charge separation/generation unit satisfies that a transmittance is greater than 50% for visible light having a wavelength ranging from 380 nm to 480 nm, satisfies that a transmittance is greater than 70% for visible light having a wavelength ranging from 480 nm to 580 nm, and satisfies that a transmittance is greater than 75% for visible light having a wavelength ranging from 580 nm to 680 nm.
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5.发明公开公开(公告)号：US20230354698A1
公开(公告)日：2023-11-02
申请号：US17927542
申请日：2021-11-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yansong LI , Haidong WU , Bei WANG , Xiaobo DU
CPC classification number: H10K85/631 , H10K59/1201 , H10K59/35 , H10K50/17
Abstract: A material with a hole injection function and/or a hole transport function includes a host material and a crystallisation inhibitor doped in the host material. The crystallisation inhibitor is capable of inhibiting crystallisation of the host material during evaporation, and the crystallisation inhibitor has a hole injection function and/or a hole transport function.
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Patent Agency Ranking
公开(公告)号：US20220310931A1
公开(公告)日：2022-09-29
申请号：US17519722
申请日：2021-11-05
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shu JING , Xiaobo DU , Zhihui ZHANG
IPC: H01L51/00
Abstract: An organic light-emitting device, a manufacturing method and a display device are provided. The organic light-emitting device includes: a first electrode and a second electrode that are arranged oppositely; at least two light-emitting layers located between the first electrode and the second electrode, the at least two light-emitting layers include a first light-emitting layer and a second light-emitting layer that are stacked alternately. The first light-emitting layer is a blue light-emitting layer, the first light-emitting layer is doped with a first dopant material, and the second light-emitting layer is doped with a second dopant material. The first dopant material includes a blue light-emitting material with triplet-triplet annihilation effect, and the triplet energy level of the first dopant material is higher than the triplet energy level of the second dopant material.
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7.发明申请公开(公告)号：US20220238834A1
公开(公告)日：2022-07-28
申请号：US17516402
申请日：2021-11-01
Applicant: BOE Technology Group Co., Ltd.
Abstract: The present application provides a light-emitting component and a method for manufacturing the same, a display substrate, and a display device. The light-emitting component comprises: an anode layer stacked on one side of a base, a first functional layer group including a plurality of functional layers, an organic light-emitting layer, a second functional layer group including a plurality of functional layers, and a cathode layer; the first functional layer group comprises a hole injection delaying layer close to the organic light-emitting layer, and the hole injection delaying layer is used for reducing a hole transport rate; and/or the second functional layer group comprises an electron injection delaying layer close to the organic light-emitting layer, and the electron injection delaying layer is used for reducing an electron transport rate.
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公开(公告)号：US20250113704A1
公开(公告)日：2025-04-03
申请号：US18729992
申请日：2023-09-26
Applicant: BOE Technology Group Co., Ltd.
Inventor： Hui ZHOU , Yansong LI , Xiaobo DU , Guanyin WEN , Lihui MA
IPC: H10K50/19
Abstract: A light-emitting device includes a first electrode and a second electrode opposite to each other, and at least two light-emitting units in a stack between the first electrode and the second electrode. The light-emitting device further includes a charge generation unit between adjacent light-emitting units. The charge generation unit includes a first charge generation unit and a second charge generation unit sequentially arranged in a direction from the second electrode to the first electrode. The first charge generation unit is made of a material including a first host material, and a first guest material doped in the first host material, the first charge generation unit is configured to generate a first charge, and the first guest material is configured to absorb light emitted from the light-emitting units to cause the first charge generation unit to generate the first charge.
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公开(公告)号：US20250081718A1
公开(公告)日：2025-03-06
申请号：US18282849
申请日：2023-01-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaobo DU , Yansong LI , Erli LI , Shu JING , Yonghong CHEN , Mingli LIU
IPC: H10K50/12 , H10K50/15 , H10K50/16 , H10K50/17 , H10K101/00 , H10K101/10 , H10K101/25 , H10K102/00
Abstract: The present disclosure provides a light emitting device and a display panel, which belong to the field of display technology. The light emitting device includes a first electrode, a second electrode, and at least one light emitting unit between the first electrode and the second electrode; the at least one light emitting unit each at least includes a light emitting layer; the light emitting layer includes a host material, a phosphorescent guest material and a fluorescent guest material which are doped together; a lowest triplet energy level of at least one material in the host material is greater than a lowest triplet energy level of the phosphorescent guest material.
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公开(公告)号：US20220376001A1
公开(公告)日：2022-11-24
申请号：US17771824
申请日：2021-07-07
Applicant: BOE Technology Group Co., Ltd.
Inventor： Haidong WU , Xiaobo DU , Xiaojin ZHANG , Guanyin WEN
Abstract: An OLED display panel, a preparation method therefor, and a display apparatus. The display panel includes a display area including a first sub-pixel, a second sub-pixel and a third sub-pixel displaying different colors; the display area includes a first electrode layer, a pixel defining layer, an organic functional layer and a second electrode layer sequentially arranged on a substrate; the organic functional layer includes a first light-emitting layer in the first sub-pixel, a second light-emitting layer in the second sub-pixel, and a third light-emitting layer covering the display area and having an integrated structure; the orthographic projection, on the substrate, of each of the first light-emitting layer and the second light-emitting layer includes the orthographic projection of an opening on the substrate, which defines a corresponding sub-pixel, of the pixel defining layer and does not overlap with orthographic projections of remaining openings of the pixel defining layer on the substrate.
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