公开(公告)号：US10373779B2

公开(公告)日：2019-08-06

申请号：US15993628

申请日：2018-05-31

Applicant: DARFON ELECTRONICS CORP.

Inventor： Pen-Hui Liao ,  Chin-Hung Lin ,  Yen-Hsiao Lin ,  Hsin-Hung Liu ,  Chia-Fu Cheng

IPC: H01H13/85 ,  H01H13/705 ,  H01H13/84 ,  H01H13/88

Abstract: A key switch includes a base, a key cap, a link bar and a buffer member. A first hook of a first extending arm of the base and a second hook of a second extending arm of the base extend toward opposite directions respectively. An upper linking end of the link bar is movably connected to the key cap. The buffer member is made of material softer than material of the base. When the first hook and the second hook engage with a first engaging portion and a second engaging portion of the buffer member respectively, a recess structure of the buffer member is adjacent to the base to form a restraining structure. A lower linking end of the link bar is movably disposed through the restraining structure. Therefore, the key switch of the present invention has noise reduction capability.

公开(公告)号：US09847193B2

公开(公告)日：2017-12-19

申请号：US14979502

申请日：2015-12-27

Applicant: Darfon Electronics Corp.

Inventor： Hsin-Hung Liu ,  Pen-Hui Liao

IPC: H01H13/83 ,  G06F3/02 ,  H01H3/12

CPC classification number: H01H13/83 ,  G06F3/0202 ,  H01H3/125 ,  H01H2219/044 ,  H01H2219/058 ,  H01H2219/062 ,  H01H2219/0622 ,  H01H2219/064

Abstract: An illuminant keyboard and a method thereof are provided. A plurality of protruding walls substantially parallel to each other are disposed on one of an upper surface of the transparent plate, a lower surface of the transparent plate and an upper surface of the planar light source. The protruding walls may be either I-shaped, L-shaped, U-shaped or square-shaped. When the protruding walls are made of an opaque material, the protruding walls can effectively reduce the intensity of the halo light surrounding a transparent keycap. When the protruding walls are made of a transparent material with a designated color, the halo light surrounding the keycap will be modulated with the designated color.