ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,815, issued on Dec. 16, was assigned to PIXART IMAGING INC. (Hsin-Chu, Taiwan).
"Lighting touchpad with recessed protective layer and multiple substrates" was invented by Chi-Chieh Liao (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lighting touchpad is provided, which includes a substrate module, a sensing electrode layer formed on the substrate module, a driving electrode layer including a plurality of driving electrodes formed on the substrate module, a plurality of light emitting diode (LED) dies, a protective layer, and a controller. The protective layer covers the sensing electrodes, the driving electrodes, and the LED dies...