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.:
Date of Patent:
Dec. 02, 2025
Filed:
Jul. 31, 2024
Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong, CN;
Tianxu Xie, Guangdong, CN;
Abstract
An optical film structure, a backlight module, and a display device are provided. The optical film structure includes a base layer and a viewing angle adjustment layer positioned on a light-emitting side of the base layer. The optical film structure features a narrow viewing angle mode and a wide viewing angle mode. In the narrow viewing angle mode, the viewing angle adjustment layer is configured to narrow the light's emission angle to a first emission angle. In the wide viewing angle mode, the viewing angle adjustment layer is configured to adjust the light's emission angle to a second emission angle, which is greater than the first emission angle. The optical film structure achieves the switching between narrow and wide viewing angle modes by adjusting the configuration of the viewing angle adjustment layer.