ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,511, issued on May 27, was assigned to Shanjin Optoelectronics (Suzhou) Co. LTD. (China).

"Mask film and method for manufacturing polarizing plate by using same" was invented by Byung Sun Lee (Daejeon, South Korea), Jaehong Park (Daejeon, South Korea), Kyun Il Rah (Daejeon, South Korea) and Du Jin Choi (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a mask film used for manufacturing a polarizing plate having a locally bleached area, and a polarizing plate manufactured using the same."

The patent was filed on Aug. 22, 2019, under Application No. 17/259,487.

*For further information, including ...