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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11765920 B1

PDFFull Text
Date of Patent:
Sep. 19, 2023

Filed:

Aug. 05, 2021

Organic electroluminescent display panel, manufacturing method thereof, and display device

Applicant:

Boe Technology Group Co., Ltd., Beijing, CN;

Inventors:

Huifeng Wang, Beijing, CN;

Wang Zhang, Beijing, CN;

Jingang Fang, Beijing, CN;

Assignee:

BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;

Attorney:

DINSMORE & SHOHL LLP

Primary Examiner:

Anthony Ho

Int. Cl.
CPC ...
H01L 51/50 (2006.01); H10K 50/13 (2023.01); H10K 50/822 (2023.01); H10K 59/122 (2023.01); H10K 71/00 (2023.01); H10K 71/60 (2023.01); H10K 71/16 (2023.01); H10K 71/20 (2023.01); H10K 59/12 (2023.01);
U.S. Cl.
CPC ...
H10K 50/131 (2023.02); H10K 50/822 (2023.02); H10K 59/122 (2023.02); H10K 71/00 (2023.02); H10K 71/164 (2023.02); H10K 71/166 (2023.02); H10K 71/233 (2023.02); H10K 71/60 (2023.02); H10K 59/1201 (2023.02);
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.

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