ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,452,399, issued on Oct. 21, was assigned to STAR ASIA VISION Corp. (Hsinchu, Taiwan).

"Display device with movable grid structure" was invented by Ching-Tien Lien (Hsinchu, Taiwan), Kai-Wen Chen (Hsinchu, Taiwan), Chi-Tseng Chang (Hsinchu, Taiwan) and Kuo-Shu Huang (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a display device which comprises a light source, a grid structure and a photo interrupter. The grid structure is disposed above the light source and can move left and right relative to the light source. When the grid structure does not block the photo interrupter, the light source receives a first signal,...