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.

公开(公告)号：US12035554B2

公开(公告)日：2024-07-09

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: H10K50/16 ,  H10K71/16 ,  H10K85/30 ,  H10K85/60 ,  H05B33/22 ,  H10K50/155 ,  H10K101/30

CPC classification number: H10K50/16 ,  H10K71/164 ,  H05B33/22 ,  H10K50/155 ,  H10K85/324 ,  H10K85/6572 ,  H10K2101/30

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：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.

Inventor： Cheng Han ,  Xin Li ,  Xing Fan ,  Songquan Wu ,  Meng Sun ,  Erli Li

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.

公开(公告)号：US11502143B2

公开(公告)日：2022-11-15

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：US11387297B2

公开(公告)日：2022-07-12

申请号：US16092895

申请日：2018-01-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lujiang Huangfu ,  Xing Fan ,  Dan Wang ,  Xiaowei Xu ,  Liangjian Li

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

Abstract: An OLED display substrate, a manufacturing method thereof and a display device are provided. The OLED display substrate includes a TFT array layer, a first electrode, a pixel definition layer, an OEL layer and a second electrode arranged on a base substrate. The pixel definition layer is configured to define a plurality of subpixel regions. A reflection structure surrounds each subpixel region and is capable of reflecting light beams from the OEL layer and beyond an escaping cone in such a manner as to enable at least parts of the light beams to enter the escaping cone.

公开(公告)号：US11196016B2

公开(公告)日：2021-12-07

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

IPC: H01L51/52 ,  H01L51/56

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.

公开(公告)号：US10680196B1

公开(公告)日：2020-06-09

申请号：US16409369

申请日：2019-05-10

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yan Fan ,  Xing Fan ,  Hao Gao ,  Xiangmin Wen

IPC: H01L51/52 ,  H01L51/56

Abstract: A display panel and a method for manufacturing the same and a display device are disclosed. The display substrate includes: a base substrate having a plurality of pixel areas, at least one of the plurality of pixel areas including a first electrode layer, an organic functional layer and a second electrode layer stacked in sequence on the base substrate; and a third electrode layer on a side of the second electrode layer facing away from the base substrate; wherein the third electrode layer is electrically connected to the second electrode layer.

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.

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.

公开(公告)号：US12069923B2

公开(公告)日：2024-08-20

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 ,  G09G3/3216 ,  G09G3/3225 ,  H10K59/131 ,  H10K59/80 ,  H10K59/90

CPC classification number: H10K59/179 ,  G09G3/3216 ,  G09G3/3225 ,  H10K59/131 ,  H10K59/80515 ,  H10K59/80521 ,  H10K59/90 ,  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.