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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 12477932 B1

PDFFull Text
Date of Patent:
Nov. 18, 2025

Filed:

Nov. 29, 2021

Display substrate and preparation method thereof, and display apparatus each including partition region provides with at least one partition dam surrounding function hole

Applicants:

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

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

Inventors:

Nan Du, Beijing, CN;

Guowei Su, Beijing, CN;

Chiehhsing Chung, Beijing, CN;

Yongyi Fu, Beijing, CN;

Yong Zhou, Beijing, CN;

Feng Bai, Beijing, CN;

Saijun Sun, Beijing, CN;

Kaihao Chen, Beijing, CN;

Suoping Peng, Beijing, CN;

Kechao Song, Beijing, CN;

Zhengping Xu, Beijing, CN;

Sa Liu, Beijing, CN;

Hexiong Li, Beijing, CN;

Assignees:

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

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

Attorneys:

Ling Wu

Stephen Yang

Ling and Yang Intellectual Property

Primary Examiner:

Michael Jung

Int. Cl.
CPC ...
H10K 59/80 (2023.01); H10K 59/12 (2023.01);
U.S. Cl.
CPC ...
H10K 59/873 (2023.02); H10K 59/1201 (2023.02);
Abstract

Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a display region and at least one hole region located in the display region, the hole region includes a function hole and a partition region surrounding the function hole, the partition region is provided with at least one partition dam surrounding the function hole; the partition dam includes a first partition layer disposed on a base substrate and a second partition layer disposed on a side of the first partition layer away from the base substrate, at least one partition layer includes a second sub-layer and a third sub-layer disposed on a side of the second sub-layer away from the base substrate, the third sub-layer has a protrusion with respect to a sidewall of the second sub-layer, and the protrusion and the sidewall of the second sub-layer form an inwardly recessed structure.

Find Patent Forward Citations

Du, Nan. (2025). Display substrate and preparation method thereof, and display apparatus each including partition region provides with at least one partition dam surrounding function hole (U.S. Patent No. 12477932). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12477932

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