ALEXANDRIA, Va., March 24 -- United States Patent no. 12,586,741, issued on March 24, was assigned to Darfon Electronics Corp. (Taoyuan City, Taiwan).
"Backlight module for lighting keyboard" was invented by Yen-Chang Chen (Taoyuan City, Taiwan) and Heng-Yi Huang (Taoyuan City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A backlight module for a lighting keyboard comprises a lighting board including light emitting units, a light guide panel disposed on the lighting board and including light guide holes, and a shielding sheet disposed on the light guide panel. Each light emitting unit is located in each light guide hole. The backlight module is divided into regions including a middle region and two ...