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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：US20250040342A1
公开(公告)日：2025-01-30
申请号：US18279063
申请日：2022-11-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiangmin WEN , Na BI , Yansong LI , Haidong WU , Yan FAN , Hao GAO , Cheng HAN
IPC: H10K50/852 , H10K59/80 , H10K102/00
Abstract: The present disclosure provides a display panel, and belongs to the technical field of display. The display panel in the present application includes a base substrate and a plurality of pixel units on the base substrate. Each of the pixel units includes a plurality of light-emitting units emitting light in different colors. Each of the the plurality of light-emitting unit includes a first electrode, an organic functional layer and a second electrode stacked sequentially along a direction away from the base substrate. Among the plurality of light-emitting units emitting light in different colors in each pixel unit, the second electrode of the light-emitting unit emitting light with a shortest wavelength has a smallest thickness along a direction perpendicular to the base substrate.
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公开(公告)号：US20240381728A1
公开(公告)日：2024-11-14
申请号：US18780651
申请日：2024-07-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yan FAN , Yipeng CHEN , Yang WANG , Yansong LI , Xing FAN
IPC: H10K59/179 , G09G3/3216 , G09G3/3225 , H10K59/131 , H10K59/80 , H10K59/90
Abstract: A display substrate, a display panel, an electronic device and a display method. The display substrate includes first electrodes in a first display region and second electrodes in a second display region, a first light-emitting portion in the first display region and a second light-emitting portion in the second display region, and the first electrodes being of strip shapes extending along a first direction and being spaced apart from each other along a second direction; third electrodes in the first display region and a fourth electrode in the second display region, the third electrode being of strip shapes extending along the second direction and being spaced apart from each other along the first direction.
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公开(公告)号：US20240260411A1
公开(公告)日：2024-08-01
申请号：US18020420
申请日：2022-06-21
Applicant: BOE Technology Group Co., Ltd.
Inventor： Zhihui ZHANG , Bei WANG , Hao GAO , Yan FAN , Xiangmin WEN
CPC classification number: H10K59/875 , H10K50/13 , H10K59/35
Abstract: A light emitting substrate includes: a first base substrate, a plurality of light emitting devices located on the first base substrate, wherein the light emitting devices include a first light emitting device, a second light emitting device and a third light emitting device, each of the light emitting devices includes a first electrode layer, a light emitting functional layer and a second electrode layer which are stacked, the light emitting functional layer includes an emitting layer including a first emitting layer in the first light emitting device, a second emitting layer in the second light emitting device and a third emitting layer in the third light emitting device; the material of the first emitting layer is different from the material of the second emitting layer, and the material of the first emitting layer is different from the material of the third emitting layer.
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公开(公告)号：US20220231251A1
公开(公告)日：2022-07-21
申请号：US17483290
申请日：2021-09-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiangmin WEN , Xing FAN , Yan FAN , Hao GAO
Abstract: The present disclosure provides an organic electroluminescent device and a manufacturing method thereof. The organic electroluminescent device includes an anode, an electron transport layer and a cathode. The material of the electron transport layer includes a mixture of a first electron transport material and a second electron transport material, the lowest unoccupied molecular orbital energy level of the first electron transport material is higher than that of the second electron transport material, and the ratio of the first electron transport material to the second electron transport material first decreases and then increases in the direction from the cathode to the anode.
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Patent Agency Ranking
公开(公告)号：US20240057363A1
公开(公告)日：2024-02-15
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: H10K50/11 , H10K71/12 , H10K50/16 , H10K50/858
CPC classification number: H10K50/11 , H10K71/12 , H10K50/16 , H10K50/858 , H10K2101/90
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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公开(公告)号：US20220302416A1
公开(公告)日：2022-09-22
申请号：US17509760
申请日：2021-10-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhihui ZHANG , Yan FAN , Hao GAO , Xing FAN
Abstract: Provided are a light-emitting device and a manufacturing method thereof, a display panel and a display device. The light-emitting device includes a plurality of light-emitting units including a first, a second, and a third light-emitting unit. Each light-emitting unit includes a micro-cavity structure including an anode, a hole transport layer, a functional layer, and a cathode. The functional layer of the first light-emitting unit includes a first light-emitting layer, a first buffer layer between the first light-emitting layer and the hole transport layer of the first light-emitting unit, and a second buffer layer between the first buffer layer and the first light-emitting layer. The material of the second buffer layer is different from that of the first buffer layer, the second buffer layer has a physical thickness less than or equal to 30 nanometers and an optical thickness less than or equal to 60 nanometers.
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公开(公告)号：US20210257421A1
公开(公告)日：2021-08-19
申请号：US17251863
申请日：2020-05-07
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaoyun LIU , Liangliang KANG , Xiaofen WANG , Qian JIN , Tun LIU , Yan FAN
Abstract: The present disclosure relates to the technical field of display, and provided thereby are a display device, a flexible display panel and a manufacturing method therefor. The flexible display panel comprises a flexible substrate and a plurality of pixel islands arranged in an array on the flexible substrate; the pixel islands have a display region and a peripheral region surrounding the display region, and each pixel island comprises a driving layer, a first electrode layer, a light emitting layer and a second electrode layer that are sequentially stacked on the flexible substrate; the first electrode layer comprises a first electrode located in the display region and a peripheral electrode located in the peripheral region; the peripheral electrode surrounds the display region, and a surface of the peripheral electrode away from the flexible substrate is provided with a barrier structure surrounding the display region, a preset spacing being present between the barrier structure and the display region; and the light emitting layer is intermittently provided in a region directly opposite to the barrier structure and a region located within a range of the preset spacing.
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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：US20230189600A1
公开(公告)日：2023-06-15
申请号：US17800462
申请日：2021-05-19
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yan FAN , Yipeng CHEN , Yang WANG , Yansong LI , Xing FAN
IPC: H10K59/179 , H10K59/131 , H10K59/90 , H10K59/80 , G09G3/3225 , G09G3/3216
CPC classification number: H10K59/179 , H10K59/131 , H10K59/90 , H10K59/80515 , H10K59/80521 , G09G3/3225 , G09G3/3216 , G09G2300/0426 , G09G2300/06 , G09G2300/08
Abstract: A display substrate, a display panel, an electronic device and a display method. The display substrate includes first electrodes in a first display region and second electrodes in a second display region, a first light-emitting portion in the first display region and a second light-emitting portion in the second display region, and the first electrodes being of strip shapes extending along a first direction and being spaced apart from each other along a second direction; third electrodes in the first display region and a fourth electrode in the second display region, the third electrode being of strip shapes extending along the second direction and being spaced apart from each other along the first direction.
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