公开(公告)号：US20240184151A1

公开(公告)日：2024-06-06

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: G02F1/13 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/1323 ,  G02F1/13378 ,  G02F1/13439 ,  G02F1/13475

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：US20230363209A1

公开(公告)日：2023-11-09

申请号：US17633589

申请日：2021-03-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Cheng HAN ,  Xin LI ,  Qixiao WU ,  Songquan WU ,  Meng SUN ,  Xing FAN ,  Yansong LI

IPC: H10K59/122 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/1201

Abstract: The present disclosure provides a display substrate, a manufacturing method thereof, and a display device. The display substrate includes a pixel define layer and a post spacer disposed on a driving structure layer, wherein the post spacer is disposed on a surface of the pixel define layer at one side away from the driving structure layer, and an orthographic projection of the post spacer on a substrate is within an orthographic projection of the pixel define layer on the substrate; there is a protrusion on a surface of the post spacer at one side away from the driving structure layer, a height of the protrusion being less than 0.2 µm.

公开(公告)号：US20230354636A1

公开(公告)日：2023-11-02

申请号：US17801623

申请日：2021-10-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yanjun HAO ,  Caiyu QU ,  Guanyin WEN ,  Songquan WU ,  Pengfei ZUO ,  Xiaobo DU ,  Yansong LI

IPC: H10K50/18 ,  H10K59/35 ,  H10K71/16 ,  H10K71/60

CPC classification number: H10K50/181 ,  H10K59/35 ,  H10K71/16 ,  H10K71/60

Abstract: An organic light emitting diode, a manufacturing method thereof, a display substrate and a display apparatus are disclosed. The organic light emitting diode includes: a first electrode and a second electrode opposite to each other and a first hole transport layer, a first electron blocking layer, a blue emission layer, at least one first hole blocking layer, and a first electron transport layer, which are between the first electrode and the second electrode and sequentially arranged in a direction approaching the second electrode, wherein a total thickness of all the at least one first hole blocking layer is greater than a thickness of the first electron blocking layer.

公开(公告)号：US20220115614A1

公开(公告)日：2022-04-14

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: H01L51/50 ,  H01L51/56

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：US20220123057A1

公开(公告)日：2022-04-21

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: H01L27/32 ,  H01L51/56

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.