公开(公告)号：US20210005835A1

公开(公告)日：2021-01-07

申请号：US16076420

申请日：2018-02-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Huifeng WANG ,  Wang ZHANG ,  Jingang FANG

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56

Abstract: The present disclosure relates to an organic electroluminescent display panel, a method of manufacturing the same, and a display device that can alleviate or avoid the occurrence of pixel crosstalk problems due to lateral conduction of the charge generation layer. An organic electroluminescent display panel is provided which comprises: a substrate; an anode layer and a pixel defining layer over the substrate, the pixel defining layer defining pixel units, wherein a recess is provided in the pixel defining layer between adjacent pixel units; a stack of organic electroluminescent units over the anode layer and the pixel defining layer, the stack comprising at least two organic electroluminescent units and a charge generation layer disposed between organic electroluminescent units which are adjacent to each other; a cathode layer over the stack, wherein the corresponding charge generation layers of the adjacent pixel units are disconnected at the recesses, and wherein the cathode layer is continuous at the recess.

公开(公告)号：US20230389349A1

公开(公告)日：2023-11-30

申请号：US18446065

申请日：2023-08-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Huifeng WANG ,  Wang ZHANG ,  Jingang FANG

IPC: H10K50/13 ,  H10K50/822 ,  H10K59/122 ,  H10K71/00 ,  H10K71/60 ,  H10K71/16 ,  H10K71/20

CPC classification number: H10K50/131 ,  H10K50/822 ,  H10K59/122 ,  H10K71/00 ,  H10K71/60 ,  H10K71/164 ,  H10K71/166 ,  H10K71/233 ,  H10K59/1201

Abstract: An organic electroluminescent display panel, a method of manufacturing the same, and a display device that can alleviate or avoid the occurrence of pixel crosstalk problems due to lateral conduction of the charge generation layer are disclosed. An organic electroluminescent display panel is provided which comprises: a substrate; an anode layer and a pixel defining layer over the substrate, the pixel defining layer defining pixel units, wherein a recess is provided in the pixel defining layer between adjacent pixel units; a stack of organic electroluminescent units over the anode layer and the pixel defining layer, the stack comprising at least two organic electroluminescent units and a charge generation layer disposed between organic electroluminescent units which are adjacent to each other; a cathode layer over the stack. The corresponding charge generation layers of the adjacent pixel units are disconnected at the recesses. The cathode layer is continuous at the recess.

公开(公告)号：US20210367179A1

公开(公告)日：2021-11-25

申请号：US17395179

申请日：2021-08-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Huifeng WANG ,  Wang ZHANG ,  Jingang FANG

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56

Abstract: The present disclosure relates to an organic electroluminescent display panel, a method of manufacturing the same, and a display device that can alleviate or avoid the occurrence of pixel crosstalk problems due to lateral conduction of the charge generation layer. An organic electroluminescent display panel is provided which comprises: a substrate; an anode layer and a pixel defining layer over the substrate, the pixel defining layer defining pixel units, wherein a recess is provided in the pixel defining layer between adjacent pixel units; a stack of organic electroluminescent units over the anode layer and the pixel defining layer, the stack comprising at least two organic electroluminescent units and a charge generation layer disposed between organic electroluminescent units which are adjacent to each other; a cathode layer over the stack, wherein the corresponding charge generation layers of the adjacent pixel units are disconnected at the recesses, and wherein the cathode layer is continuous at the recess.