US Patent Issued to DARFON ELECTRONICS on April 8 for "Luminous keyboard and optical module thereof" (Taiwanese Inventor)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,271,021, issued on April 8, was assigned to DARFON ELECTRONICS CORP. (Taoyuan, Taiwan).

"Luminous keyboard and optical module thereof" was invented by Chao-Yu Chen (Taoyuan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical module for a luminous keyboard includes a mask film having a mask pattern, a patterned layer disposed on the mask film, and a light guide sheet disposed on one side of the mask film. The mask pattern defines a plurality of light-transparent regions respectively corresponding to a plurality of keyswitches of the luminous keyboard. The patterned layer has a light transmittance larger than that of the mask pattern. The li...