公开(公告)号：US12185560B2

公开(公告)日：2024-12-31

申请号：US18446065

申请日：2023-08-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Huifeng Wang ,  Wang Zhang ,  Jingang Fang

IPC: H01L51/50 ,  H10K50/13 ,  H10K50/822 ,  H10K59/122 ,  H10K71/00 ,  H10K71/16 ,  H10K71/20 ,  H10K71/60 ,  H10K59/12

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：US11114636B2

公开(公告)日：2021-09-07

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：US11765920B2

公开(公告)日：2023-09-19

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 ,  H10K50/13 ,  H10K50/822 ,  H10K59/122 ,  H10K71/00 ,  H10K71/60 ,  H10K71/16 ,  H10K71/20 ,  H10K59/12

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

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：US20210225903A1

公开(公告)日：2021-07-22

申请号：US16305451

申请日：2018-04-27

Applicant: BOE Technology Group Co., Ltd. ,  Hefei Xinsheng Optoelectronics Technology Co., Ltd.

Inventor： Shengping Du ,  Tongshang Su ,  Zhengfeng Huang ,  Yu Yang ,  Wang Zhang ,  Lei Wang ,  Yun Ma ,  Lihua Liu ,  Guangdong Liu ,  Wen Guo

IPC: H01L27/12

Abstract: The present disclosure provides an etching method, a manufacturing method of a thin film transistor, a process device and a display device. The etching method includes: forming a patterned photoresist layer on the surface of a material to be etched, the patterned photoresist layer exposing an area to be etched on the surface of the material to be etched; curing the photoresist layer by adopting a plasma process; and etching the material to be etched by adopting an etching solution corresponding to the material to be etched. The present disclosure can help to solve the problem of undercutting and improve the product yield and product performances.