ALEXANDRIA, Va., July 30 -- United States Patent no. 12,373,043, issued on July 29, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).
"Optical pen" was invented by Ivan Maidanchuk (Yongin-si, South Korea), Jin Yong Sim (Yongin-si, South Korea), Chang Min Park (Yongin-si, South Korea) and Kyu Shik Shin (Yongin-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical pen includes a body, a protrusion connected to the body and protruding in a first direction, a first light source configured to output light in the first direction, a second light source configured to output light in the first direction, a third light source configured to output light in a second direction crossin...