公开(公告)号：US20220293050A1

公开(公告)日：2022-09-15

申请号：US17509822

申请日：2021-10-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xing FAN ,  Chao KONG ,  Xiangmin WEN

IPC: G09G3/3225 ,  H01L27/32 ,  H01L51/52

Abstract: The disclosure provides a display panel, a compensation of brightness method and a displaying device. The display panel comprises an array substrate, a luminescent layer, a plurality of optical film layers and a photoelectric sensor, wherein the luminescent layer is located on one side of the array substrate, the array substrate is used for driving the luminescent layer to emit light, the optical film layers are located on a side, away from the array substrate, of the luminescent layer, light emitted by the luminescent layer forms optical waveguide on the array substrate and/or the optical film layers, and the photoelectric sensor is used for acquiring the optical waveguide to perform compensation of brightness on the light emitted by the luminescent layer according to data of the optical waveguide.

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：US20250133931A1

公开(公告)日：2025-04-24

申请号：US18693340

申请日：2023-01-03

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yansong LI ,  Haidong WU ,  Jingbo XU ,  Xiaobo DU ,  Pengfei ZUO ,  Na BI ,  Xiangmin WEN

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/38 ,  H10K71/60 ,  H10K102/00

Abstract: The present disclosure provides a display substrate, a method for manufacturing the display substrate and a display apparatus, wherein the display substrate includes: a base substrate; an anode layer arranged on the base substrate and comprising a plurality of anodes arranged at intervals; a pixel defining layer disposed on the base substrate, the pixel defining layer defining a plurality of pixel areas and covering an edge area of each of the anodes; a light-emitting functional layer arranged on a side of the anode layer away from the base substrate, the light-emitting functional layer at least covering the pixel areas; and a cathode layer and a metal patterning layer arranged on a side of the light-emitting functional layer away from the base substrate.

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.

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：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：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.