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公开(公告)号：US20220293698A1
公开(公告)日：2022-09-15
申请号：US17539095
申请日：2021-11-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Hao GAO , Zhihui ZHANG , Xu LI , Xing FAN , Penghao GU
IPC: H01L27/32 , G02F1/1335 , G02F1/1343 , G02F1/137 , G02F1/01
Abstract: Embodiments of the disclosure provide a display panel and a display device. The display panel includes a substrate, a plurality of light emitting elements and at least one transmissive-reflective module, where the light emitting elements are arranged on the substrate; each of the light emitting elements includes a first electrode, a light emitting functional layer and a second electrode arranged along a direction vertical to the substrate and away from the substrate; the at least one transmissive-reflective module is arranged on a side, close to the substrate, of the first electrode of at least one of the light emitting elements, and/or on a side, away from the substrate, of the second electrode of at least one of the light emitting elements; the transmissive-reflective module is configured to switch between a transmissive state and a reflective state.
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公开(公告)号：US20210296415A1
公开(公告)日：2021-09-23
申请号：US17057027
申请日：2020-03-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Lujiang HUANGFU , Xing FAN , Hao GAO , Hao ZHANG , Qiuhua MENG , Na LI , Yansong LI
IPC: H01L27/32
Abstract: A pixel structure includes: a pixel definition layer having a first side and a second side which are opposite to each other in a thickness direction of the pixel definition layer, the pixel definition layer including a pixel opening having sidewalls; an island-shaped portion disposed in the pixel opening of the pixel definition layer and spaced apart from the sidewalls of the pixel opening, the island-shaped portion having sidewalls, and the sidewalls of the pixel opening and the sidewalls of the island-shaped portion defining a ring-shaped pixel groove; and a light emitting unit, at least a part of which is disposed in the ring-shaped pixel groove.
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公开(公告)号：US20210226152A1
公开(公告)日：2021-07-22
申请号：US16632191
申请日：2018-11-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Lujiang HUANGFU , Xing FAN , Zheng LIU , Yan FAN , Liangjian LI , Hao GAO
Abstract: A pixel structure includes a base substrate and a light emitting element on the base substrate. The light emitting element includes a reflective electrode, a light emitting layer on the reflective electrode, and a substantially transparent electrode on a side of the light emitting layer away from the reflective electrode. The reflective electrode has a reflective ridge configured to reflect light laterally transmitted through the light emitting layer to exit from a light emitting surface of the pixel structure. The reflective ridge has a first concave reflective sidewall extending from a peak of the reflective ridge to a base of the reflective ridge, and a second concave reflective sidewall extending from the peak of the reflective ridge to the base of the reflective ridge. The first concave reflective sidewall faces away from the second concave reflective sidewall.
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公开(公告)号：US20210057671A1
公开(公告)日：2021-02-25
申请号：US16925665
申请日：2020-07-10
Applicant: BOE Technology Group Co., Ltd.
Abstract: The present disclosure discloses an organic electroluminescent substrate and an organic electroluminescent display panel. The organic electroluminescent substrate includes a planarization layer, an insulating layer, a first electrode, a pixel definition layer, an organic light-emitting layer and a second electrode, wherein a surface of the pixel definition layer away from the planarization layer is flush with a surface of the insulating layer away from the planarization layer.
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公开(公告)号：US20250133920A1
公开(公告)日：2025-04-24
申请号：US19007614
申请日：2025-01-02
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 a 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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Patent Agency Ranking
公开(公告)号：US20240397782A1
公开(公告)日：2024-11-28
申请号：US18693970
申请日：2023-07-05
Applicant: BOE Technology Group Co., Ltd.
IPC: H10K59/35
Abstract: A display panel and a display apparatus. The display panel comprises at least one repeat region (10), wherein the repeat region (10) comprises n pixel regions (21, 22, 23, 24), n being a natural number greater than or equal to 3; the pixel region (21, 22, 23, 24) at least comprises a first sub-pixel region (31); the first sub-pixel region (31) has a first central axis (60); and in a repeat region (10), an included angle formed between first central axes (60) of first sub-pixel regions (31) in adjacent pixel regions (21, 22, 23, 24) is 360 degrees/n.
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公开(公告)号：US20240224584A1
公开(公告)日：2024-07-04
申请号：US17914155
申请日：2021-10-26
Applicant: BOE Technology Group Co., Ltd.
Inventor： Hao GAO , Yan FAN , Xing FAN , Xu LI , Zhihui ZHANG , Xiangmin WEN
IPC: H10K50/858 , H10K50/15 , H10K50/16 , H10K50/18 , H10K102/00
CPC classification number: H10K50/858 , H10K50/15 , H10K50/16 , H10K50/181 , H10K2102/3026
Abstract: A display device and a display panel thereof, and an OLED display device are provided. The OLED display device includes: a red light-emitting structure, a green light-emitting structure, and a blue light-emitting structure, where (n3z-n3xy)-(n1z-n1xy)≥a first preset value, and (n3z-n3xy)-(n2z-n2xy)≥a second preset value, where ranges of both the first preset value and the second preset value are 0.1˜0.3; n1z is a sum of refractive indexes of respective layers of the red light-emitting structure in a thickness direction; n1xy is a sum of refractive indexes of the respective layers of the red light-emitting structure in a vertical thickness direction; n2z is a sum of refractive indexes of respective layers of the green light-emitting structure in the thickness direction; n2xy is a sum of refractive indexes of the respective layers of the green light-emitting structure in the vertical thickness direction; n3z is a sum of refractive indexes of respective layers of the blue light-emitting structure in the thickness direction; and n3xy is a sum of refractive indexes of the respective layers of the blue light-emitting structure in the vertical thickness direction. According to embodiments of the present disclosure, a reflectance of an interface between the blue light-emitting structure and outside at a large angle of view can be reduced, a light transmittance can be increased, a brightness can be enhanced, and further a color shift can be improved.
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公开(公告)号：US20240215367A1
公开(公告)日：2024-06-27
申请号：US17916148
申请日：2021-11-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xing FAN , Lujiang HUANGFU , Hao GAO , Qiuhua MENG , Hao ZHANG , Na LI , Yansong LI
IPC: H10K59/35
CPC classification number: H10K59/353
Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate and a first insulation layer. The first insulation layer includes a plurality of first openings, the first opening is configured to expose a first electrode to form an effective light emitting region, at least one effective light emitting region at least partially surrounds at least one island region; a second insulation pattern, the first electrode, a first insulation pattern of the first insulation layer, a light emitting layer and a second electrode are sequentially provided in the island region along a direction facing away from the base substrate, a distance between a portion of the first electrode in the island region and a main surface of the base substrate is greater than a distance between a portion of the first electrode in the effective light emitting region and the main surface of the base substrate.
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公开(公告)号：US20230403908A1
公开(公告)日：2023-12-14
申请号：US17915755
申请日：2021-11-11
Applicant: BOE Technology Group Co., Ltd.
Inventor： Hao GAO , Xin LI , Xing FAN , Cheng HAN , Yansong LI
CPC classification number: H10K59/873 , H10K59/879 , H10K59/1201 , H10K2102/351
Abstract: This invention provides an OLED display substrate, a method for manufacturing the same, and a display device, which belongs to the technical field of displays. The OLED display substrate includes: a drive substrate, the drive substrate being provided with a light-emitting unit; and an encapsulation structure covering the light-emitting unit. The encapsulation structure comprises a first inorganic structure, an organic layer and a second inorganic structure arranged in sequence along a direction away from the drive substrate. A refractive index of the first inorganic structure is higher than a refractive index of the organic layer, the first inorganic structure comprises at least one inorganic layer, and a thickness of one inorganic layer of the at least one inorganic layer is not larger than 500 nm. With the technical solution of this invention, the display effect of the OLED display substrate can be improved.
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公开(公告)号：US20220310969A1
公开(公告)日：2022-09-29
申请号：US17483253
申请日：2021-09-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: H01L51/52
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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