ALEXANDRIA, Va., June 4 -- United States Patent no. 12,321,540, issued on June 3, was assigned to CHICONY POWER TECHNOLOGY Co. LTD. (New Taipei, Taiwan).
"Light-emitting module for touchpad" was invented by Chun-Ming Huang (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting module includes a light-blocking sheet and a light guide sheet that are arranged on a circuit board. The circuit board includes a light-emitting element. The light-blocking sheet has a hollow portion and a light-blocking portion. The light guide sheet is arranged in the hollow portion, and has a light incident portion and a light guide portion, where the light incident portion includes a first side surface,...