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公开(公告)号：US20240397799A1
公开(公告)日：2024-11-28
申请号：US18272690
申请日：2022-09-28
Applicant: BOE Technology Group Co., Ltd.
Inventor： Cheng Han , Qixiao Wu , Songquan Wu , Xu Li , Yanming Wang , Xiangmin Wen , Yansong Li
Abstract: A light-emitting panel and a manufacturing method thereof, and a light-emitting apparatus are provided, which relate to the technical field of photoelectric technology. The light-emitting panel includes: a light-emitting substrate including a light-emitting area and a non-light-emitting area surrounding the light-emitting area; a first packaging layer disposed at a light emitting side of the light-emitting substrate; a low refractive index layer disposed at a side of a first packaging layer away from the light-emitting substrate, the low refractive index layer being arranged around the light-emitting area; a high refractive index layer disposed at sides of the low refractive index layer and the first packaging layer away from the light-emitting substrate, an orthographic projection of the high refractive index layer on the light-emitting substrate covering the light-emitting area, and the high refractive index layer covering a side surface of the low refractive index layer facing the light-emitting area.
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公开(公告)号：US11882721B2
公开(公告)日：2024-01-23
申请号：US17483253
申请日：2021-09-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: H10K50/844 , H10K50/85
CPC classification number: H10K50/844 , H10K50/85
Abstract: The present disclosure provides a display panel and a display device. The display panel includes: a substrate; and a light-emitting device and a packaging structure on the substrate, the packaging structure sealing the light-emitting device on the substrate. The light-emitting device includes a cathode, an anode, and a light-emitting layer between the cathode and the anode; the packaging structure includes a first inorganic packaging layer, and the first inorganic packaging layer includes a first inorganic packaging sublayer, a second inorganic packaging sublayer, and a third inorganic packaging sublayer that are sequentially stacked; and a refractive index of the second inorganic packaging sublayer is greater than a refractive index of the first inorganic packaging sublayer, and a difference between the refractive index of the second inorganic packaging sublayer and the refractive index of the first inorganic packaging sublayer is greater than 0.1, the refractive index of the second inorganic packaging sublayer is greater than a refractive index of the third inorganic packaging sublayer, and a difference between the refractive index of the second inorganic packaging sublayer and the refractive index of the third inorganic packaging sublayer is greater than 0.1.
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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：US20250008805A1
公开(公告)日：2025-01-02
申请号：US18264066
申请日：2022-11-24
Applicant: BOE Technology Group Co., Ltd.
Inventor： Cheng Han , Qixiao Wu , Zhihui Zhang , Yanqiang Wang , Songquan Wu , Yanming Wang , Xu Li , Le Wang , Lihui Luo , Yansong Li
IPC: H10K59/38 , H10K59/40 , H10K59/80 , H10K102/00
Abstract: A display substrate includes a light emitting element on a base substrate; and a light modulating structure on a side of the light emitting element away from the base substrate. The light modulating structure includes a color filter layer and a substantially transparent layer on a side of the color filter layer away from the base substrate. The color filter layer includes a plurality of color filter units, a respective color filter unit of the plurality of color filter units being in an individual subpixel. Adjacent color filter units are spaced apart by a portion of the substantially transparent layer that extends into a region between the adjacent color filter units. An orthographic projection of the respective color filter unit on the base substrate at least partially overlaps with an orthographic projection of a light emitting layer of the light emitting element on the base substrate.
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公开(公告)号：US12219849B2
公开(公告)日：2025-02-04
申请号：US17772245
申请日：2021-05-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xing Fan , Xin Li , Cheng Han , Yansong Li
IPC: H10K59/35 , H10K59/124 , H10K102/00
Abstract: An array substrate and a display apparatus are provided The array substrate includes: at least one adjusting portion on the base substrate and having a first cross section in a plane perpendicular to the base substrate; first cross section includes top and bottom sides, first and second lateral sides; the bottom side is closer to the base substrate than the top side, an orthographic projection of the top side on the base substrate is within an orthographic projection of the bottom side on the base substrate; the first and/or second lateral sides is/are stepped; a buffer layer on a side of the adjusting portion away from the base substrate; light-emitting devices on a side of the buffer layer away from the base substrate and each including a first electrode, a light-emitting layer and a second electrode sequentially arranged along a direction away from the base substrate.
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Patent Agency Ranking
公开(公告)号：US20240292665A1
公开(公告)日：2024-08-29
申请号：US18025735
申请日：2022-04-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Cheng Han , Kaijia Jin , Xing Fan , Yanming Wang , Qixiao Wu , Xiangmin Wen , Bingwei Yang , Shun Wang , Songquan Wu , Yansong Li
IPC: H10K59/122 , H10K59/12 , H10K59/80
CPC classification number: H10K59/122 , H10K59/1201 , H10K59/876
Abstract: Provided are a display panel and a manufacturing method thereof and a display device. The display panel includes: a base substrate; a pixel defining layer including first openings defining sub-pixels; an encapsulation layer; and a light modulation layer. The light modulation layer is configured such that light from each of at least one sub-pixel propagates along a direction away from the base substrate after total reflection upon incidence on an interface between the first light modulation portion in a corresponding second opening and the first light modulation sub-layer. The display panel satisfies at least one of a first condition or a second condition. The first condition is that at least a part of edge of the first orthographic projection has a recess. The second condition is that at least a part of edge of the second orthogonal projection has at least one of a recess or a protrusion.
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公开(公告)号：US20240292719A1
公开(公告)日：2024-08-29
申请号：US18025992
申请日：2022-04-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Cheng Han , Xing Fan , Qixiao Wu , Songquan Wu , Yanming Wang , Xu Li , Yansong Li
IPC: H10K59/80 , H10K59/12 , H10K59/122
CPC classification number: H10K59/879 , H10K59/1201 , H10K59/122
Abstract: Provided are a display panel and a manufacturing method thereof, and a display device. The display panel includes: a base substrate; a pixel defining layer on one side of the base substrate and having a plurality of first openings for defining a plurality of sub-pixels, the plurality of first openings being in one-to-one correspondence to the plurality of sub-pixels; and an encapsulation layer on one side of the pixel defining layer away from the base substrate. The encapsulation layer includes: a first inorganic layer; a second inorganic layer on one side of the first inorganic layer away from the base substrate; an organic layer between the first inorganic layer and the second inorganic layer; and at least one first optical structure between the first inorganic layer and the organic layer. A refractive index of each first optical structure is greater than that of the organic layer.
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公开(公告)号：US12016205B2
公开(公告)日：2024-06-18
申请号：US17458193
申请日：2021-08-26
Applicant: BOE Technology Group Co., Ltd.
IPC: H10K71/00 , H10K59/121 , H10K59/12
CPC classification number: H10K59/121 , H10K71/00 , H10K59/1201
Abstract: The application provides a manufacturing method for a display panel, a display panel, and a display device. The manufacturing method includes: providing a substrate; forming a driving circuit layer on the substrate; forming a planarization layer on the side of the driving circuit layer facing away from the substrate; forming a composite material layer on the side of the planarization layer facing away from the substrate with a polymerization-induced phase separation method to the composite material layer including a polymer and liquid crystal phase molecules dispersed in the polymer; removing the liquid crystal phase molecules in the composite material layer to obtain an auxiliary structure layer, the side of the auxiliary structure layer facing away from the substrate having a plurality of protrusion structures; and forming a pixel structure on the side of the auxiliary structure layer facing away from the substrate, wherein the auxiliary structure layer makes the pixel structure uneven, and the pixel structure includes a first electrode, an organic light emitting material, and a second electrode that are sequentially formed on the side of the auxiliary structure layer facing away from the substrate.
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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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10.发明授权公开(公告)号：US11825671B2
公开(公告)日：2023-11-21
申请号：US17334466
申请日：2021-05-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Songquan Wu , Xiaobo Du , Guanyin Wen , Cheng Han
IPC: H10K50/11 , H10K50/16 , H10K71/00 , H10K85/30 , H10K85/60 , H10K101/40 , H10K101/30 , H10K102/00
CPC classification number: H10K50/11 , H10K50/166 , H10K71/00 , H10K85/324 , H10K85/6572 , H10K2101/30 , H10K2101/40 , H10K2102/351
Abstract: The present disclosure provides an electroluminescent device and a method for preparing the same, a display panel and a display device. The electroluminescent device includes a light emitting layer, a cathode layer, and an electron transport layer arranged between the light emitting layer and the cathode layer. The electron transport layer includes at least a first electron transport material and a second electron transport material that have different LUMO energy levels, and a ratio EM1/EM2 of the weight content of the first electron transport material to that of the second electron transport material decreases in a direction from a surface thereof proximate to the cathode layer to a surface thereof proximate to the light emitting layer. The electroluminescent device of the present disclosure can improve its efficiency and lifetime.
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