公开(公告)号：US10950394B2

公开(公告)日：2021-03-16

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：US09966202B2

公开(公告)日：2018-05-08

申请号：US15650982

申请日：2017-07-17

Applicant: DARFON ELECTRONICS CORP.

Inventor： Pen-Hui Liao ,  Chin-Hung Lin ,  Hsin-Hung Liu ,  I-Chu Kuo ,  Yu-Ming Huang

IPC: H01H3/12 ,  H01H13/88 ,  G06F3/02

CPC classification number: H01H3/12 ,  G06F3/0202 ,  H01H13/88

Abstract: A keyswitch includes a cap, a support structure, a first magnet, and a baseplate having a bending arm protruding from the baseplate and a support rib extending horizontally to form a receiving space with the bending arm. The support structure includes a first support member pivoted to the baseplate and against the cap and a magnetic permeable plate extending from the first support member and being above the receiving space. The first magnet is inserted into the receiving space to be supported by the support rib and be pressed by the bending arm. When the cap is pressed to make the magnetic permeable plate away from the first magnet as the first support member rotates, the cap moves to a pressed position. When the cap is released, a magnetic attraction force between the magnetic permeable plate and the first magnet drives the magnetic permeable plate to approach the first magnet.

公开(公告)号：US20180350537A1

公开(公告)日：2018-12-06

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: H01H13/84 ,  H01H13/88

CPC classification number: H01H13/84 ,  H01H13/705 ,  H01H13/85 ,  H01H13/88 ,  H01H2221/062

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：US09837221B2

公开(公告)日：2017-12-05

申请号：US15049153

申请日：2016-02-22

Applicant: Darfon Electronics Corp.

Inventor： Pen-Hui Liao ,  Liang-Ta Yeh

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

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.

公开(公告)号：US10332695B2

公开(公告)日：2019-06-25

申请号：US16027395

申请日：2018-07-05

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 plurality of superimposed sublayers disposed above the baseplate and having a through hole structure passing through the sublayers; a portion of one of the sublayers extends in the through hole structure over the first through hole and forms a resilient portion neighboring to the hook. Two sides of the resilient portion connect to the circuit layer. 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, movably connecting to the keycap, and a second portion, engaged with the hook. The resilient portion extends beneath and abuts against the second portion for buffering a collision between the second portion and the baseplate.

公开(公告)号：US20180025856A1

公开(公告)日：2018-01-25

申请号：US15650982

申请日：2017-07-17

Applicant: DARFON ELECTRONICS CORP.

Inventor： Pen-Hui Liao ,  Chin-Hung Lin ,  Hsin-Hung Liu ,  I-Chu Kuo ,  Yu-Ming Huang

IPC: H01H3/12 ,  G06F3/02 ,  H01H13/88

CPC classification number: H01H3/12 ,  G06F3/0202 ,  H01H13/88

Abstract: A keyswitch includes a cap, a support structure, a first magnet, and a baseplate having a bending arm protruding from the baseplate and a support rib extending horizontally to form a receiving space with the bending arm. The support structure includes a first support member pivoted to the baseplate and against the cap and a magnetic permeable plate extending from the first support member and being above the receiving space. The first magnet is inserted into the receiving space to be supported by the support rib and be pressed by the bending arm. When the cap is pressed to make the magnetic permeable plate away from the first magnet as the first support member rotates, the cap moves to a pressed position. When the cap is released, a magnetic attraction force between the magnetic permeable plate and the first magnet drives the magnetic permeable plate to approach the first magnet.

公开(公告)号：US20180315555A1

公开(公告)日：2018-11-01

申请号：US16027395

申请日：2018-07-05

Applicant: DARFON ELECTRONICS CORP.

Inventor： Pen-Hui Liao ,  Liang-Ta Yeh

IPC: H01H3/12 ,  H01H13/705

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 plurality of superimposed sublayers disposed above the baseplate and having a through hole structure passing through the sublayers; a portion of one of the sublayers extends in the through hole structure over the first through hole and forms a resilient portion neighboring to the hook. Two sides of the resilient portion connect to the circuit layer. 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, movably connecting to the keycap, and a second portion, engaged with the hook. The resilient portion extends beneath and abuts against the second portion for buffering a collision between the second portion and the baseplate.

公开(公告)号：US20180053606A1

公开(公告)日：2018-02-22

申请号：US15796473

申请日：2017-10-27

Applicant: Darfon Electronics Corp.

Inventor： Pen-Hui Liao ,  Liang-Ta Yeh

IPC: H01H3/12 ,  H01H13/705

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.

公开(公告)号：US20170330707A1

公开(公告)日：2017-11-16

申请号：US15485234

申请日：2017-04-12

Applicant: DARFON ELECTRONICS CORP.

Inventor： Pen-Hui Liao ,  Chin-Hung Lin

IPC: H01H13/14 ,  H01H3/12

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：US20160189892A1

公开(公告)日：2016-06-30

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

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.

Abstract translation: 提供了一种光源键盘及其方法。 多个彼此平行的突出壁设置在透明板的上表面，透明板的下表面和平面光源的上表面之一上。 突出的壁可以是I形，L形，U形或正方形。 当突出的壁由不透明材料制成时，突出的壁可以有效地降低围绕透明键帽的晕圈的强度。 当突出的壁由具有指定颜色的透明材料制成时，围绕键帽的光环将以指定的颜色进行调制。