ALEXANDRIA, Va., June 10 -- United States Patent no. 12,293,883, issued on May 6, was assigned to DARFON ELECTRONICS CORP. (Taoyuan, Taiwan).
"Backlight keyswitch and backlight module thereof" was invented by Heng-Yi Huang (Taoyuan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A backlight keyswitch includes a keyswitch body, a board connected to the keyswitch body, a backlight module and a membrane disposed between the keyswitch body and the board. The backlight module is disposed under the board and includes a backlight circuit board, a light-blocking sheet, a first reflecting ink layer, and a light guide plate disposed between the light-blocking sheet and the backlight circuit board. The first ref...