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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 12349555 B1

PDFFull Text
Date of Patent:
Jul. 01, 2025

Filed:

Jan. 11, 2021

Display substrate, method for manufacturing the same, and display device

Applicants:

Chengdu Boe Optoelectronics Technology Co., Ltd., Sichuan, CN;

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

Inventors:

Li Jia, Beijing, CN;

Tao Gao, Beijing, CN;

Zubin Lv, Beijing, CN;

Assignees:

Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan, CN;

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

Attorney:

IPro, PLLC

Primary Examiner:

Alia Sabur

Int. Cl.
CPC ...
H10K 59/124 (2023.01); H10K 50/80 (2023.01); H10K 50/844 (2023.01); H10K 59/12 (2023.01); H10K 59/80 (2023.01); H10K 71/00 (2023.01);
U.S. Cl.
CPC ...
H10K 59/124 (2023.02); H10K 50/844 (2023.02); H10K 59/1201 (2023.02); H10K 59/873 (2023.02); H10K 71/00 (2023.02); H10K 50/80 (2023.02); H10K 59/80 (2023.02);
Abstract

A display substrate, a method for manufacturing the display substrate and a display device are provided in this disclosure. The display substrate includes a substrate film layer and functional film layers, the display substrate includes a display region and a hole-forming region, and the method includes: forming a plurality of functional film layers on the substrate film layer; etching at least one of the functional film layers in the hole-forming region to form a first via-hole penetrating the at least one of the functional film layers; forming a transition layer that covers the display region and reveals the first via-hole; forming a second via-hole in the hole-forming region by using the transition layer as a mask, the second via-hole penetrating the substrate film layer and all the functional film layers apart from the at least one of the functional film layers; and removing the transition layer.

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