公开(公告)号：US20240379308A1

公开(公告)日：2024-11-14

申请号：US18644074

申请日：2024-04-23

Applicant: Darfon Electronics Corp.

Inventor： Chih-Hung Chien ,  Chih-Chung Yen

IPC: H01H13/7073 ,  H01H13/02

Abstract: A backlight keyswitch includes a keyswitch body, a membrane circuit board disposed under the keyswitch body, a backlight module and an elastic body having a bridge structure, a central pillar, and a ring-shaped base disposed on the membrane circuit board. The keyswitch body has a keycap with a symbol. The backlight module is disposed under the membrane circuit board for emitting light to the symbol. The elastic body is disposed between the keycap and the membrane circuit board for returning the keycap to its original position. The bridge structure extends from the ring-shaped base toward the keycap to connect to the central pillar for supporting the central pillar, such that the central pillar is suspended relative to the membrane circuit board and abuts against the keycap. A projection of the central pillar on the keycap completely covers the symbol.