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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 12382783 B1

PDFFull Text
Date of Patent:
Aug. 05, 2025

Filed:

Nov. 15, 2021

Display device and method for manufacture the same

Applicants:

Hefei Boe Joint Technology Co., Ltd., Anhui, CN;

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

Inventors:

Yue Hu, Beijing, CN;

Koji Hanawa, Beijing, CN;

Dacheng Zhang, Beijing, CN;

Meixiu Zhang, Beijing, CN;

Assignees:

Hefei BOE Joint Technology Co. , Ltd., Anhui, CN;

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

Attorney:

MUNCY, GEISSLER, OLDS & LOWE, P.C.

Primary Examiner:

Anthony Ho

Int. Cl.
CPC ...
H10K 50/17 (2023.01); H10K 50/826 (2023.01); H10K 59/80 (2023.01); H10K 71/60 (2023.01); H10K 85/60 (2023.01); H10K 50/15 (2023.01); H10K 50/818 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01); H10K 102/00 (2023.01); H10K 102/10 (2023.01);
U.S. Cl.
CPC ...
H10K 50/171 (2023.02); H10K 50/826 (2023.02); H10K 59/80 (2023.02); H10K 71/611 (2023.02); H10K 85/631 (2023.02); H10K 85/654 (2023.02); H10K 85/6565 (2023.02); H10K 50/15 (2023.02); H10K 50/818 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02); H10K 2102/103 (2023.02); H10K 2102/351 (2023.02);
Abstract

A display device and method for manufacturing the same. The display device includes an anode layer, hole injection layer, hole transport layer, light-emitting material layer, electron transport layer, electron injection layer and cathode layer arranged in sequence. The electron injection layer includes at least one electron injection layer. At least one high impedance layer is further arranged between at least one of the electron injection layers and the cathode layer. The resistivity of the electron injection layer and resistivity of the cathode layer are both smaller than the resistivity of the high impedance layer. The display device and the method for manufacturing the same can solve the problem of short circuit between cathode and anode of the display device caused by particles, significantly reduce the number of dark spots on the panel of the display device, and improve the panel yield of the display device.

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