公开(公告)号：US20190304717A1

公开(公告)日：2019-10-03

申请号：US16442531

申请日：2019-06-16

Applicant: DARFON ELECTRONICS CORP.

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

IPC: H01H13/14

Abstract: A key switch includes a base, a key cap, a supporting mechanism, a link bar and a buffer member. The key cap is disposed above the base. The supporting mechanism is connected to the key cap and the base to allow the key cap to move relative to the base upwardly and downwardly. The link bar includes a lower linking end. The buffer member and the base are two independent components. The buffer member is disposed on the base and made of material softer than material of the base. A restraining structure is formed on the buffer member. The lower linking end movably passes through the restraining structure. When the key cap moves relative to the base upwardly and downwardly, the lower linking end is driven to move within the restraining structure correspondingly, so as to reduce noise during movement of the lower linking end relative to the base.

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：US10049828B2

公开(公告)日：2018-08-14

申请号：US15796473

申请日：2017-10-27

Applicant: Darfon Electronics Corp.

Inventor： Pen-Hui Liao ,  Liang-Ta Yeh

IPC: H01H13/70 ,  H01H3/12 ,  H01H13/705

Abstract: A key switch includes a baseplate, a circuit layer, a keycap and a support rod. The baseplate has a hook and a first through hole neighboring to the hook. The circuit layer includes a first sublayer disposed above the baseplate and having a second through hole, and a second sublayer disposed above the first sublayer and having a third through hole; a portion of the second sublayer extends over the second through hole and forms a first resilient portion; the first resilient portion has four sides, two of which connect to the second sublayer; and the first resilient portion is neighboring to the hook. The keycap is disposed above the baseplate and can move upward and downward in respect to the baseplate. The support rod has a first portion and a second portion; the first portion movably connects to the keycap and the second portion engages the hook.

公开(公告)号：US09953776B2

公开(公告)日：2018-04-24

申请号：US15485234

申请日：2017-04-12

Applicant: DARFON ELECTRONICS CORP.

Inventor： Pen-Hui Liao ,  Chin-Hung Lin

IPC: H01H36/00 ,  H01H13/14 ,  H01H3/12 ,  H01H13/84

CPC classification number: H01H13/14 ,  H01H3/122 ,  H01H3/125 ,  H01H13/84 ,  H01H36/0073 ,  H01H2221/04

Abstract: A keyswitch includes a base plate, a cap having a longitudinal axis, a returning device, a support mechanism, and a lifting mechanism including first and second support plates. The first support plate has first and second edges parallel to the longitudinal axis for respectively abutting against the base plate and the cap. The second support plate has third and fourth edges parallel to the longitudinal axis for respectively abutting against the base plate and the cap. The base plate is disposed through openings of the first and second support plates to make the first and second support plates movably connected to the base plate. The returning device drives the cap to a non-pressed position with rotation of the first and second support plates. The support mechanism has first and second support members pivoted to each other to be movably connected to the cap and the base plate.

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.

公开(公告)号：US20160284484A1

公开(公告)日：2016-09-29

申请号：US15049153

申请日：2016-02-22

Applicant: Darfon Electronics Corp.

Inventor： Pen-Hui Liao ,  Liang-Ta Yeh

IPC: H01H3/12

CPC classification number: H01H3/125 ,  H01H13/705 ,  H01H2209/046 ,  H01H2221/062

Abstract: A key switch includes a baseplate, a circuit layer, a keycap and a support rod. The baseplate has a hook and a first through hole neighboring to the hook. The circuit layer includes a first sublayer disposed above the baseplate and having a second through hole, and a second sublayer disposed above the first sublayer and having a third through hole; a portion of the second sublayer extends over the second through hole and forms a first resilient portion; the first resilient portion has four sides, two of which connect to the second sublayer; and the first resilient portion is neighboring to the hook. The keycap is disposed above the baseplate and can move upward and downward in respect to the baseplate. The support rod has a first portion and a second portion; the first portion movably connects to the keycap and the second portion engages the hook.

Abstract translation: 键开关包括底板，电路层，键帽和支撑杆。 底板具有钩和与钩相邻的第一通孔。 电路层包括设置在基板上方并具有第二通孔的第一子层和设置在第一子层上方并具有第三通孔的第二子层; 第二子层的一部分在第二通孔上延伸并形成第一弹性部分; 第一弹性部分具有四个侧面，其中两个连接到第二子层; 并且第一弹性部分与钩相邻。 键帽设置在基板上方，并可相对于底板向上和向下移动。 支撑杆具有第一部分和第二部分; 第一部分可移动地连接到键帽，并且第二部分接合钩。