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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 12453257 B1

PDFFull Text
Date of Patent:
Oct. 21, 2025

Filed:

Aug. 10, 2021

Display substrate, preparation method therefor, and display device

Applicants:

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

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

Inventors:

Wei Xia, Beijing, CN;

Tao Gao, Beijing, CN;

Yuanzheng Guo, Beijing, CN;

Huaisen Ren, Beijing, CN;

Jie Li, Beijing, CN;

Yongzhan Han, 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:

Britt D Hanley

Assistant Examiner:

Victor V Barzykin

Int. Cl.
CPC ...
H10K 59/131 (2023.01); H01L 23/00 (2006.01); H01L 25/16 (2023.01); H01L 25/18 (2023.01); H10K 59/124 (2023.01); H10K 71/00 (2023.01); H05K 1/18 (2006.01); H05K 3/34 (2006.01); H10K 59/12 (2023.01); H10K 59/121 (2023.01); H10K 71/80 (2023.01);
U.S. Cl.
CPC ...
H10K 59/131 (2023.02); H01L 24/03 (2013.01); H01L 24/05 (2013.01); H01L 24/32 (2013.01); H01L 25/167 (2013.01); H01L 25/18 (2013.01); H10K 59/124 (2023.02); H10K 71/00 (2023.02); H01L 2224/03002 (2013.01); H01L 2224/05558 (2013.01); H01L 2224/05573 (2013.01); H05K 1/181 (2013.01); H05K 3/3426 (2013.01); H10K 59/1201 (2023.02); H10K 59/1213 (2023.02); H10K 71/80 (2023.02);
Abstract

Disclosed are a display substrate, a preparation method therefor, and a display device. The display substrate includes a display region and a binding region on one side of the display region. The binding region includes a binding structure layer disposed on a base. The binding structure layer includes a composite insulating layer disposed on the base. The binding region further includes a step structure formed by the base and the composite insulating layer. Heights of steps in the step structure decrease sequentially in the direction away from the display region. In the step structure, the base forms a first step having the smallest height. The binding structure layer further includes a signal connection wire having at least a portion thereof disposed on the step structure and located on the first step. An opening exposing the signal connection wire is provided on the base at the first step.

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