US Patent Issued to Guangzhou China Star Optoelectronics Semiconductor Display Technology on Dec. 2 for "Optical film structure, backlight module, and display device" (Chinese Inventor)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,480, issued on Dec. 2, was assigned to Guangzhou China Star Optoelectronics Semiconductor Display Technology Co. Ltd. (Guangdong, China).

"Optical film structure, backlight module, and display device" was invented by Tianxu Xie (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 a...