公开(公告)号：US10991775B2

公开(公告)日：2021-04-27

申请号：US16417819

申请日：2019-05-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ying Cui

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56

Abstract: A display substrate and a fabrication method thereof, and a display panel are disclosed. The display substrate includes: a base substrate; a pixel defining layer, on the base substrate and configured to define a plurality of sub-pixel regions, each sub-pixel region including a first electrode layer and a second electrode layer; an auxiliary electrode layer, on at least a portion of the pixel defining layer, the auxiliary electrode layer having a hydrophobic surface, and the hydrophobic surface being configured to be in contact with and electrically connected with the second electrode layer.

公开(公告)号：US10833136B2

公开(公告)日：2020-11-10

申请号：US16151621

申请日：2018-10-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ying Cui

IPC: H01L29/08 ,  H01L27/32 ,  H01L51/52 ,  H01L51/50

Abstract: This disclosure provides a pixel defining layer, a display panel and a display device. The pixel defining layer comprises a pixel partition wall, wherein the pixel partition wall encloses a plurality of openings; wherein the pixel partition wall comprises a first layer, wherein the first layer is disposed on a base substrate, and wherein a sidewall of the first layer has a concave wall portion concave inward towards the pixel partition wall.

公开(公告)号：US10141510B2

公开(公告)日：2018-11-27

申请号：US15321554

申请日：2016-03-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wenjun Hou ,  Ying Cui

IPC: H01L51/56 ,  H01L51/00 ,  H01L27/32 ,  H01L51/50

Abstract: An organic light emitting diode display panel, a manufacturing method thereof and a display device are disclosed, for reducing the number of inkjet heads used in inkjet printing or alleviating the swath mura at printing interfaces. The method comprises manufacturing an anode layer, a light emitting layer and a cathode layer on a base substrate, and the method can further comprise manufacturing by an entire-surface coating process a function layer having a first preset thickness between the anode layer and the light emitting layer; and in a first preset region of the function layer that has been manufactured, manufacturing by an inkjet printing process a function layer having a second preset thickness.

公开(公告)号：US10044001B2

公开(公告)日：2018-08-07

申请号：US15321211

申请日：2016-04-12

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ying Cui ,  Chunjing Hu

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

Abstract: Provided are a display substrate and a manufacturing method therefor, and a display device. The display substrate includes: a base substrate, a pixel defining layer (40, 40′) formed on the base substrate, and a light emitting layer located in a sub-pixel region (P) defined by the pixel defining layer (40, 40′), wherein, the pixel defining layer (40, 40′) includes: a reflecting layer (41, 41′), configured such that light emitted from the light emitting layer to the reflective layer (41, 41′) is reflected to a light outgoing side of the display substrate. The display device adopting the display substrate not only can effectively solve the problems of light leakage and light color interference, but also can effectively improve light out-coupling efficiency and color purity.

公开(公告)号：US11968859B2

公开(公告)日：2024-04-23

申请号：US17501332

申请日：2021-10-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ying Cui

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  H10K50/84 ,  H10K59/122 ,  H10K71/00 ,  H10K59/12 ,  H10K59/35 ,  H10K59/80 ,  H10K102/00

CPC classification number: H10K59/122 ,  H10K50/84 ,  H10K71/00 ,  H10K59/1201 ,  H10K59/35 ,  H10K59/873 ,  H10K2102/351

Abstract: An array substrate includes a base and a pixel defining layer and light-emitting layers that are disposed on the base. The pixel defining layer includes defining strips extending in a first direction and defining portions extending in a second direction, the defining strips and the defining portions define openings, defining portions located between two adjacent defining strips are spaced apart in the first direction, a defining portion includes at least two second sub-portions and first sub-portion(s) connected to the two adjacent defining strips through the at least two second sub-portions, thickness of a defining strip is greater than a thickness of a first sub-portion, and the thickness of the first sub-portion is greater than a thickness of a second sub-portion. Portion(s) of a light-emitting layer is disposed in a corresponding opening, and at least two light-emitting layers between the two adjacent defining strips are connected to form a one-piece structure.

公开(公告)号：US11937461B2

公开(公告)日：2024-03-19

申请号：US17487296

申请日：2021-09-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ying Cui

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  H10K50/80 ,  H10K59/122 ,  H10K71/00 ,  H10K59/12 ,  H10K59/35 ,  H10K71/12 ,  H10K71/13 ,  H10K71/16

CPC classification number: H10K59/122 ,  H10K50/80 ,  H10K71/00 ,  H10K59/1201 ,  H10K59/35 ,  H10K71/12 ,  H10K71/135 ,  H10K71/164

Abstract: An array substrate, including: a plurality of first pixel defining portions and a plurality of second pixel defining portions arranged on a base substrate and jointly define a plurality of pixel openings; and a light emitting functional layer arranged on the base substrate and includes a first light emitting portion and a second light emitting portion that emit different colors of light, at least a part of the first light emitting portion and the second light emitting portion is respectively located in a first pixel opening and a second pixel opening. An orthographic projection of a combination of two adjacent pixel openings separated by the second pixel defining portion on a base substrate has a first size in a first direction and a second size in a second direction, and a ratio of the first size to the second size is within a range of 0.8 to 1.2.

公开(公告)号：US11678525B2

公开(公告)日：2023-06-13

申请号：US17711269

申请日：2022-04-01

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ying Cui

IPC: H01L27/32

CPC classification number: H10K59/122 ,  H10K71/00 ,  H10K71/135 ,  H10K59/1201

Abstract: Embodiments of the present application provide a display substrate comprising a plurality of first banks distributed in a first direction and a plurality of second banks distributed in a second direction. Two adjacent first banks define a group of sub-pixel units of the display substrate, and two adjacent second banks define one sub-pixel unit. The first bank has a height greater than a height of the second bank. Embodiments of the present application also disclose a manufacturing method of a display substrate and a display device.

公开(公告)号：US20220278181A1

公开(公告)日：2022-09-01

申请号：US17487296

申请日：2021-09-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ying Cui

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

Abstract: An array substrate, including: a plurality of first pixel defining portions and a plurality of second pixel defining portions arranged on a base substrate and jointly define a plurality of pixel openings; and a light emitting functional layer arranged on the base substrate and includes a first light emitting portion and a second light emitting portion that emit different colors of light, at least a part of the first light emitting portion and the second light emitting portion is respectively located in a first pixel opening and a second pixel opening. An orthographic projection of a combination of two adjacent pixel openings separated by the second pixel defining portion on a base substrate has a first size in a first direction and a second size in a second direction, and a ratio of the first size to the second size is within a range of 0.8 to 1.2.

公开(公告)号：US20220262879A1

公开(公告)日：2022-08-18

申请号：US17597758

申请日：2021-04-09

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ying Cui

IPC: H01L27/32

Abstract: Disclosed are an array substrate, a preparation method, a display panel, and a display device. A pixel limiting layer includes a first limiting sublayer and a second limiting sublayer which contact each other, and a first height of the first limiting sublayer in a direction perpendicular to a plane where a base substrate is located is greater than a second height of the second limiting sublayer in the direction perpendicular to the plane where the base substrate is located. Thus, when light emitting layers are formed in pixel openings by an ink jet printing process, light emitting layers having different colors can be spaced apart by the first limiting sublayer.

公开(公告)号：US20200091254A1

公开(公告)日：2020-03-19

申请号：US16380602

申请日：2019-04-10

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ying Cui

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/56

Abstract: Embodiments of the present application provide a display substrate comprising a plurality of first banks distributed in a first direction and a plurality of second banks distributed in a second direction. Two adjacent first banks define a group of sub-pixel units of the display substrate, and two adjacent second banks define one sub-pixel unit. The first bank has a height greater than a height of the second bank. Embodiments of the present application also disclose a manufacturing method of a display substrate and a display device.