ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,297, issued on April 7, was assigned to TD ELECTROOPTIC FILMS (TDEF) INC. (Suzhou, China).

"Transparent projection screen with Fresnel structure and projection system using the same" was invented by Jun Ma (Suzhou, China) and Jiuzhi Xue (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a transparent projection screen having a Fresnel structure. The projection screen is provided with Fresnel structure units having a specific structure, such that incident light irradiated to each Fresnel structure unit can be corrected by a Fresnel microstructure at this position and is reflected in the direction of an obse...