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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 12226985 B1

PDFFull Text
Date of Patent:
Feb. 18, 2025

Filed:

Nov. 17, 2021

Supporting back film and manufacturing method therefor, and flexible display device

Applicants:

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

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

Inventors:

Huiqiang Song, Beijing, CN;

Lei Yang, Beijing, CN;

Fengping Wu, Beijing, CN;

Assignees:

CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan, CN;

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

Attorney:

XSENSUS LLP

Primary Examiner:

Elizabeth E Mulvaney

Int. Cl.
CPC ...
B32B 3/02 (2006.01); B32B 3/26 (2006.01); B32B 15/082 (2006.01); B32B 15/09 (2006.01); B32B 15/18 (2006.01); B32B 27/30 (2006.01); B32B 27/36 (2006.01); G06F 1/16 (2006.01);
U.S. Cl.
CPC ...
B32B 27/365 (2013.01); B32B 3/266 (2013.01); B32B 15/082 (2013.01); B32B 15/09 (2013.01); B32B 15/18 (2013.01); B32B 27/308 (2013.01); B32B 2307/7376 (2023.05); B32B 2311/30 (2013.01); B32B 2333/12 (2013.01); B32B 2457/20 (2013.01); G06F 1/1652 (2013.01);
Abstract

A supporting back film includes a first supporting structure and a second supporting structure arranged on at least one side of the first supporting structure in a second direction. The second direction intersects with the first direction. An orthographic projection of the first supporting structure on the flexible display panel covers the bendable region, and the first supporting structure is bendable. The volume of the second supporting structure is greater than or equal to the volume of the first supporting structure, and the density of the second supporting structure is less than the density of the first supporting structure. Alternatively, the volume of the first supporting structure is greater than or equal to the volume of the second supporting structure, and the density of the first supporting structure is less than the density of the second supporting structure.

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