ALEXANDRIA, Va., June 17 -- United States Patent no. 12,315,286, issued on May 27, was assigned to Japan Display Inc. (Tokyo).
"Detection device" was invented by Shigesumi Araki (Tokyo), Kazuki Matsunaga (Tokyo) and Akio Takimoto (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to an aspect, a detection device includes: a photosensor including light-receiving elements; a front light including a light guide plate and a light source configured to emit light to a first side surface of the light guide plate; and an optical filter layer provided between the light-receiving elements and the front light. The optical filter layer includes light guide paths and a light-blocking portion. A first opening...