ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,542, issued on Sept. 8, was assigned to PIXART IMAGING INC. (Hsin-Chu, Taiwan).

"Capacitive touchpad with LED dies positioned to correspond with boundary between electrodes" was invented by Che-Chia Hsu (Hsin-Chu, Taiwan), Chi-Chieh Liao (Hsin-Chu, Taiwan) and Yu-Han Chen (Hsin-Chu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A capacitive touchpad is provided, which includes a substrate module, a plurality of sensing electrodes, a plurality of driving electrodes and a plurality of light-emitting diode (LED) dies. The plurality of sensing electrodes and the plurality of driving electrodes form a touch sensing region of the capacitive touchp...