ALEXANDRIA, Va., April 15 -- United States Patent no. 12,602,135, issued on April 14, was assigned to LG Display Co. Ltd. (Seoul, South Korea).

"Display device and pen touch system" was invented by Jae Ho Lee (Paju-si, South Korea), Jisu Yoon (Paju-si, South Korea) and DongRyul Jung (Paju-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display device including a display panel comprises a transmissive area and a non-transmissive area, the display panel including: a first substrate, a pixel array layer located on the first substrate and including a plurality of subpixels and a plurality of signal lines in the non-transmissive area, and a code pattern layer including a plurality of code points ...