US Patent Issued to The Hong Kong University of Science and Technology on April 15 for "Electrically switchable liquid crystal grating cell based on photoalignment with an amplitude mask" (Chinese Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,884, issued on April 15, was assigned to The Hong Kong University of Science and Technology (Hong Kong).

"Electrically switchable liquid crystal grating cell based on photoalignment with an amplitude mask" was invented by Yuechu Cheng (Hong Kong) and Abhishek Kumar Srivastava (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "A switchable liquid crystal grating cell, and methods for manufacturing the above. The switchable liquid crystal grating cell comprises a pair of switchable liquid crystal grating parts, each switchable liquid crystal grating part comprises a substrate; a conductive layer on the substrate; and a photoalignment layer with ...