公开(公告)号：US20220393121A1

公开(公告)日：2022-12-08

申请号：US17773022

申请日：2021-06-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Penghao GU ,  Yonghong ZHOU ,  Hao GAO ,  Song ZHANG

IPC: H01L51/00 ,  H01L51/56

Abstract: A supporting member of flexible display module and a preparation method therefor, the flexible display module, and a display device. The supporting member includes a substrate made of a metal material, a first planarization layer, and a second planarization layer; a plurality of through holes are formed on the substrate; the plurality of through holes run through a first surface and a second surface of the substrate which are opposite to each other; the first planarization layer is provided on the first surface; the second planarization layer is provided on the second surface and is filled into the plurality of through holes. The preparation method for the supporting member includes: forming a first planarization layer on a first surface of a substrate made of a metal material; forming a plurality of through holes on the substrate; and forming a second planarization layer on the second surface of the substrate.

公开(公告)号：US20210408177A1

公开(公告)日：2021-12-30

申请号：US16639039

申请日：2019-07-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xing FAN ,  Hao GAO ,  Lujiang HUANGFU ,  Yan FAN ,  Xiangmin WEN

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A display back panel may include a substrate, an insulating layer disposed on one side of the substrate and including a plurality of recesses, the plurality of recesses including a bottom surface, a first electrode disposed on a surface of the insulating layer away from the substrate, a pixel defining layer disposed on a surface of the first electrode away from the substrate and including a plurality of openings, a light-emitting layer disposed in the plurality of openings and covering the first electrode, and a second electrode disposed on a surface of the light-emitting layer away from the substrate. Therein, the first electrode may reflect waveguide light laterally propagated by the light-emitting layer, thereby improving a light-emitting efficiency of the light-emitting layer. Further, the reflected waveguide light may not be absorbed by the second electrode, thereby enhancing an external quantum effect of the light-emitting layer.

公开(公告)号：US20220269125A1

公开(公告)日：2022-08-25

申请号：US17628160

申请日：2021-01-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Hao GAO ,  Yansong LI

IPC: G02F1/1335

Abstract: A color film structure includes a black matrix, a color film layer and a reflective layer. The black matrix has a plurality of openings. The color film layer includes a plurality of filter portions, and at least a portion of each filter portion is located in an opening of the black matrix. The reflective layer is located on a side of the black matrix configured to be proximate to a light-emitting substrate, and an orthographic projection of the reflective layer on a plane where the black matrix is located is covered by the black matrix. The reflective layer is configured to reflect at least a part of light emitted from the light-emitting substrate to the black matrix back to the light-emitting substrate, so that at least a part of the light reflected back to the light-emitting substrate is emitted through the color film layer.

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.

公开(公告)号：US20240389439A1

公开(公告)日：2024-11-21

申请号：US18693533

申请日：2023-06-06

Applicant: BOE Technology Group Co., Ltd.

Inventor： Qixiao WU ,  Xu LI ,  Cheng HAN ,  Hao GAO ,  Zhihui ZHANG ,  Weiye ZHENG

IPC: H10K59/80 ,  H10K59/38 ,  H10K59/40

Abstract: A display panel comprises: a base substrate; a display function layer, comprising multiple light-emitting elements; a light-exit angle limiting layer, comprising a first light-blocking region and multiple first light-exit regions corresponding to multiple light-emitting elements on a one-to-one basis, an orthographic projection of each first light-exit region on the base substrate overlapping with an orthographic projection of a corresponding light-emitting element on the base substrate; a dimming function layer, comprising multiple dimming structures corresponding to multiple light-emitting elements on a one-to-one basis, an orthographic projection of each dimming structure on the base substrate not overlapping with an orthographic projection of a corresponding light-emitting element on the base substrate, the dimming structure being configured to change a direction of propagation of part of the light that is emitted by the corresponding light-emitting element and directed toward the first light-blocking region into a direction toward the corresponding first light-exit region.

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

IPC: H10K59/80 ,  H10K50/13 ,  H10K59/35

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.

公开(公告)号：US20230363208A1

公开(公告)日：2023-11-09

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 ,  H10K59/80 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/873 ,  H10K59/1201 ,  H10K2102/351

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.

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

IPC: H01L51/50 ,  H01L51/00

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.

公开(公告)号：US20240397771A1

公开(公告)日：2024-11-28

申请号：US18694301

申请日：2021-11-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xueyan TIAN ,  Yibing FAN ,  Xuliang ZHAO ,  Jianchao ZHU ,  Hao GAO ,  Shiming SHI

IPC: H10K59/131 ,  H10K59/12 ,  H10K59/122

Abstract: A display panel includes: a substrate; a driving layer, arranged on one side of the substrate and including multiple circuit units distributed in an array, multiple row wiring harnesses, and multiple column wiring harnesses; where the circuit unit includes multiple pixel circuits; the row wiring harness includes multiple row wirings distributed at intervals along a column direction, the column wiring harness includes multiple column wirings distributed at intervals along a row direction; orthographic projections of the row wiring harnesses and the column wiring harnesses on the substrate cross and separate multiple transparent regions, and a region of the driving layer corresponding to the transparent region is a transparent structure; and a light emitting layer, arranged on a surface of the driving layer away from the substrate, and including multiple device units distributed in an array; where the device units correspond to the transparent regions.

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

IPC: H01L51/52 ,  H01L51/56

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.