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：US20240397799A1

公开(公告)日：2024-11-28

申请号：US18272690

申请日：2022-09-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Cheng Han ,  Qixiao Wu ,  Songquan Wu ,  Xu Li ,  Yanming Wang ,  Xiangmin Wen ,  Yansong Li

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/126 ,  H10K59/35 ,  H10K59/38 ,  H10K59/40

Abstract: A light-emitting panel and a manufacturing method thereof, and a light-emitting apparatus are provided, which relate to the technical field of photoelectric technology. The light-emitting panel includes: a light-emitting substrate including a light-emitting area and a non-light-emitting area surrounding the light-emitting area; a first packaging layer disposed at a light emitting side of the light-emitting substrate; a low refractive index layer disposed at a side of a first packaging layer away from the light-emitting substrate, the low refractive index layer being arranged around the light-emitting area; a high refractive index layer disposed at sides of the low refractive index layer and the first packaging layer away from the light-emitting substrate, an orthographic projection of the high refractive index layer on the light-emitting substrate covering the light-emitting area, and the high refractive index layer covering a side surface of the low refractive index layer facing the light-emitting area.

公开(公告)号：US20250008805A1

公开(公告)日：2025-01-02

申请号：US18264066

申请日：2022-11-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Cheng Han ,  Qixiao Wu ,  Zhihui Zhang ,  Yanqiang Wang ,  Songquan Wu ,  Yanming Wang ,  Xu Li ,  Le Wang ,  Lihui Luo ,  Yansong Li

IPC: H10K59/38 ,  H10K59/40 ,  H10K59/80 ,  H10K102/00

Abstract: A display substrate includes a light emitting element on a base substrate; and a light modulating structure on a side of the light emitting element away from the base substrate. The light modulating structure includes a color filter layer and a substantially transparent layer on a side of the color filter layer away from the base substrate. The color filter layer includes a plurality of color filter units, a respective color filter unit of the plurality of color filter units being in an individual subpixel. Adjacent color filter units are spaced apart by a portion of the substantially transparent layer that extends into a region between the adjacent color filter units. An orthographic projection of the respective color filter unit on the base substrate at least partially overlaps with an orthographic projection of a light emitting layer of the light emitting element on the base substrate.

公开(公告)号：US12135489B2

公开(公告)日：2024-11-05

申请号：US17785034

申请日：2021-08-04

Applicant: BOE Technology Group Co., Ltd.

Inventor： Cheng Han ,  Xin Li ,  Xing Fan ,  Qixiao Wu ,  Songquan Wu

IPC: G02F1/137 ,  G02F1/13 ,  G02F1/1334 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1347

Abstract: An anti-peeping panel, a preparation method, a driving method, and a display device. The anti-peeping panel includes: a first substrate; a second substrate; a composite material layer; first and second transparent electrode layers. The first and second transparent electrode layers includes first and second elongate electrodes respectively; orthographic projections of at least one first and second elongate electrode on the first substrate have a first overlapping region; the composite material layer includes first and second composite regions, the second composite region overlaps with the first overlapping region; when an electric field of first frequency exists between first and second elongate electrodes, the second composite region shades light, the first composite region transmits light; when an electric field of second frequency exists between first and second elongate electrodes, the second composite region transmits light, the first composite region transmits light; the first frequency is different from the second frequency.

公开(公告)号：US11825671B2

公开(公告)日：2023-11-21

申请号：US17334466

申请日：2021-05-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Songquan Wu ,  Xiaobo Du ,  Guanyin Wen ,  Cheng Han

IPC: H10K50/11 ,  H10K50/16 ,  H10K71/00 ,  H10K85/30 ,  H10K85/60 ,  H10K101/40 ,  H10K101/30 ,  H10K102/00

CPC classification number: H10K50/11 ,  H10K50/166 ,  H10K71/00 ,  H10K85/324 ,  H10K85/6572 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2102/351

Abstract: The present disclosure provides an electroluminescent device and a method for preparing the same, a display panel and a display device. The electroluminescent device includes a light emitting layer, a cathode layer, and an electron transport layer arranged between the light emitting layer and the cathode layer. The electron transport layer includes at least a first electron transport material and a second electron transport material that have different LUMO energy levels, and a ratio EM1/EM2 of the weight content of the first electron transport material to that of the second electron transport material decreases in a direction from a surface thereof proximate to the cathode layer to a surface thereof proximate to the light emitting layer. The electroluminescent device of the present disclosure can improve its efficiency and lifetime.

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：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.