ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,894, issued on April 21, was assigned to Coretronic Corp. (Hsin-Chu, Taiwan).

"Electrically controlled optical screen" was invented by Ping-Yen Chen (Hsin-Chu, Taiwan), Wen-Chun Wang (Hsin-Chu, Taiwan), Chung-Yang Fang (Hsin-Chu, Taiwan), Jing-Yu Wu (Hsin-Chu, Taiwan), Ching-Chuan Wei (Hsin-Chu, Taiwan), Wei-Ting Wu (Hsin-Chu, Taiwan) and Tzu-Hung Lin (Hsin-Chu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electrically controlled optical screen including a switchable scattering element and an electrically controlled decorating module is provided. The switchable scattering element is disposed on a side of the electrically controlled deco...