ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,754, issued on Aug. 11, was assigned to Shanghai Tianma Microelectronics Co. Ltd. (Shanghai).

"Liquid crystal grating and display device" was invented by Yang Zeng (Shanghai) and Yuan Ding (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a liquid crystal grating and a display device. The liquid crystal grating is configured to modulate incident light beams of multiple colors. The light beams include first color light. The liquid crystal grating includes a first substrate, a liquid crystal layer and a second substrate. The liquid crystal layer is located between the first substrate and the second substrate and includes multiple l...