公开(公告)号：US20210351773A1

公开(公告)日：2021-11-11

申请号：US17383678

申请日：2021-07-23

Applicant: Darfon Electronics Corp.

Inventor： Chen Yang ,  Yu-Chun HSIEH ,  Li-Te CHANG ,  Po-Yueh CHOU

IPC: H03K17/968 ,  H01H13/14 ,  H01H13/705

Abstract: An optical keyswitch includes a keycap, a support mechanism, and a switch module. The support mechanism is disposed below the keycap and configured to support the keycap moving upward and downward, the support mechanism comprising a first frame and a second frame, the first frame having a sliding end. The switch module includes a circuit board, an emitter, and a receiver, the emitter and the receiver are electrically connected to the circuit board, and the emitter emitting an optical signal to the receiver. When the keycap is pressed, the first frame is driven by the keycap to slide substantially parallel to the circuit board and block the optical signal with the sliding end, so the switch module is triggered to generate a triggering signal.

公开(公告)号：US11018667B2

公开(公告)日：2021-05-25

申请号：US16240139

申请日：2019-01-04

Applicant: Darfon Electronics Corp.

Inventor： Chen Yang ,  Yu-Chun Hsieh ,  Yung-Chih Wang ,  Chia-Hung Liu

IPC: H03K17/96 ,  H03K17/969 ,  H03K17/968

Abstract: An optical keyswitch includes a keycap, a supporting mechanism having a protrusion disposed under the keycap to support the keycap to move downward or upward, and a switch module including a circuit board, an emitter, and a receiver. The emitter and the receiver are electrically connected to the circuit board. The emitter emits an optical signal to the receiver. When the keycap is not pressed, the receiver receives the optical signal of a first intensity. When the keycap is pressed, the protrusion moves along with the keycap, and the protrusion changes the optical signal received by the receiver to have a second intensity different from the first intensity, so the switch module is triggered to generate a triggering signal.

公开(公告)号：US20190244770A1

公开(公告)日：2019-08-08

申请号：US16260066

申请日：2019-01-28

Applicant: DARFON ELECTRONICS CORP.

Inventor： Yu-Chun Hsieh ,  Yung-Chih Wang ,  Chen Yang ,  Chia-Hung Liu ,  Yen-Hsiao Lin

IPC: H01H13/14 ,  H01H1/24 ,  H01H13/705 ,  H01H13/10 ,  H01H13/28 ,  H01H3/46

Abstract: A button switch includes a base having a pillar, a cover disposed on the base, a sleeve, an arm adjacent to the pillar and an elastic member having upward-force-applying, extending-rod, and flexible-rod portions. The sleeve jackets the pillar, passes through the cover, and has first and second ribs. The upward-force-applying portion jackets the pillar and abuts against the sleeve and the base to drive the sleeve to move away from the base. The extending-rod portion extends from the upward-force-applying portion to be connected to the flexible-rod portion located under the first rib. When the sleeve is located at a high position, the second rib biases the arm to deform. When the sleeve is located at a low position, the second rib is misaligned with the arm. The flexible-rod portion crosses the first rib to be released and then collides with the cover to make sound as the sleeve is pressed.

公开(公告)号：US20190214988A1

公开(公告)日：2019-07-11

申请号：US16240139

申请日：2019-01-04

Applicant: Darfon Electronics Corp.

Inventor： Chen Yang ,  Yu-Chun Hsieh ,  Yung-Chih Wang ,  Chia-Hung LIU

IPC: H03K17/968

CPC classification number: H03K17/968

Abstract: An optical keyswitch includes a keycap, a supporting mechanism having a protrusion disposed under the keycap to support the keycap to move downward or upward, and a switch module including a circuit board, an emitter, and a receiver. The emitter and the receiver are electrically connected to the circuit board. The emitter emits an optical signal to the receiver. When the keycap is not pressed, the receiver receives the optical signal of a first intensity. When the keycap is pressed, the protrusion moves along with the keycap, and the protrusion changes the optical signal received by the receiver to have a second intensity different from the first intensity, so the switch module is triggered to generate a triggering signal.

公开(公告)号：US12020873B2

公开(公告)日：2024-06-25

申请号：US17894254

申请日：2022-08-24

Applicant: Darfon Electronics Corp.

Inventor： Yu Chun Hsieh ,  Chen Yang ,  Chia Hung Liu ,  Shao Lun Hsiao

IPC: H01H13/14 ,  G06F1/3296 ,  G06F3/02 ,  H01H13/70

CPC classification number: H01H13/14 ,  G06F1/3296 ,  G06F3/0202 ,  H01H13/70

Abstract: A sensing keyswitch including a key body, a key-sensing switch and an enabling switch is provided. The key body includes a key top, and a key driver and an enabler which can move with the key top in the same keystroke cycle. The key-sensing switch electrically connected to a key circuit is in a disabled mode to save power and cannot sense the change of the sensing intensity caused by the movement of the driver. The enabling switch is electrically connected to an enabling circuit, wherein when the enabling switch is triggered by the enabler, the enabling switch outputs an enabling signal through the enabling circuit for enabling the key-sensing switch to enter an enabled mode, so that the key-sensing switch can sense the change of the sensing intensity caused by the movement of the key driver to trigger a key signal.

公开(公告)号：US11770123B2

公开(公告)日：2023-09-26

申请号：US17383678

申请日：2021-07-23

Applicant: Darfon Electronics Corp.

Inventor： Chen Yang ,  Yu-Chun Hsieh ,  Li-Te Chang ,  Po-Yueh Chou

IPC: H01H3/12 ,  H03K17/968 ,  H01H13/705 ,  H01H13/14

CPC classification number: H03K17/968 ,  H01H13/14 ,  H01H13/705 ,  H03K2217/9653

Abstract: An optical keyswitch includes a keycap, a support mechanism, and a switch module. The support mechanism is disposed below the keycap and configured to support the keycap moving upward and downward, the support mechanism comprising a first frame and a second frame, the first frame having a sliding end. The switch module includes a circuit board, an emitter, and a receiver, the emitter and the receiver are electrically connected to the circuit board, and the emitter emitting an optical signal to the receiver. When the keycap is pressed, the first frame is driven by the keycap to slide substantially parallel to the circuit board and block the optical signal with the sliding end, so the switch module is triggered to generate a triggering signal.

公开(公告)号：US11705294B2

公开(公告)日：2023-07-18

申请号：US17841795

申请日：2022-06-16

Applicant: Darfon Electronics Corp.

Inventor： Yu-Chun Hsieh ,  Ling-Hsi Chao ,  Shao-Lun Hsiao ,  Chen Yang

IPC: H01H13/20 ,  H01H13/14 ,  H01H13/10 ,  H01H13/70

CPC classification number: H01H13/20 ,  H01H13/10 ,  H01H13/14 ,  H01H13/70 ,  H01H2215/03

Abstract: A key structure includes a base, a movable mechanism movably positioned on the base, a sound generating member positioned on the base, and an adjusting unit movable relative to the base to be at a first position or a second position. The sound generating member has a hitting portion, which extends corresponding to an impact surface. When the adjusting unit is at the first position, and a pressing force is applied to the movable mechanism, the movable mechanism moves relative to the base and drives the sound generating member to move, so the hitting portion moves to hit the impact surface to generate a hitting sound. When the adjusting unit is at the second position, the adjusting unit restricts movement of the hitting portion, so the hitting portion cannot move to hit the impact surface.

公开(公告)号：US20230197372A1

公开(公告)日：2023-06-22

申请号：US18071533

申请日：2022-11-29

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen Yang ,  Ling-Hsi Chao ,  Shao-Lun Hsiao ,  Yu-Chun Hsieh

IPC: H01H13/52 ,  H01H13/02

CPC classification number: H01H13/52 ,  H01H13/023 ,  H01H2013/525 ,  H01H2013/026

Abstract: A keyswitch structure includes a base, a keycap, a lift mechanism and a light-emitting part. The lift mechanism includes a first support, a second support, and a spring structure. The first support and the second support are connected to and between the base and the keycap, so that the keycap can move relative to the base in a vertical direction. The spring structure is a single structural part and is connected to the first support and the second support and drives the first support and the second support to lift the keycap in the vertical direction. The lift mechanism as a whole defines a central space that extends through the whole lift mechanism in the vertical direction. The spring structure does not enter the central space. The light-emitting part is disposed on the base corresponding to the central zone, and emits light to illuminate the keycap.

公开(公告)号：US11108393B2

公开(公告)日：2021-08-31

申请号：US16240096

申请日：2019-01-04

Applicant: Darfon Electronics Corp.

Inventor： Chen Yang ,  Yu-Chun Hsieh ,  Yung-Chih Wang ,  Chia-Hung Liu ,  Ching-Yu Wang ,  Li-Te Chang

IPC: H03K17/969 ,  H03K17/968

Abstract: An optical keyswitch includes a keycap, a supporting mechanism having a protrusion disposed under the keycap to support the keycap to move downward or upward, and a switch module including a circuit board, an emitter, and a receiver. The emitter and the receiver are electrically connected to the circuit board. The emitter emits an optical signal to the receiver. When the keycap is not pressed, the receiver receives the optical signal of a first intensity. When the keycap is pressed, the protrusion moves along with the keycap, and the protrusion changes the optical signal received by the receiver to have a second intensity different from the first intensity, so the switch module is triggered to generate a triggering signal.

公开(公告)号：US20200117277A1

公开(公告)日：2020-04-16

申请号：US16708465

申请日：2019-12-10

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen Yang ,  Chia-Hung Liu ,  Yung-Chih Wang ,  Yu-Chun Hsieh

IPC: G06F3/01 ,  H01H13/7057 ,  H01H13/85 ,  G06F3/023 ,  G06F3/02

Abstract: A keyswitch with adjustable tactile feedback is adjusted by an adjusting method. The keyswitch includes a baseplate, an upper housing, an upper bushing component, a lower bushing component, a keycap and a recovering component. The baseplate has an electrode module, the upper housing is disposed on the baseplate, the upper bushing component is movably disposed on the upper housing, the lower bushing component is movably located between the baseplate and the upper housing, and the keycap is connected to a connecting portion of the upper bushing component. The lower bushing component can rotate relative to the baseplate to switch between a first position and a second position. The lower bushing component has a first lateral surface and a second lateral surface with different shapes. The recovering component is disposed between the baseplate and the lower bushing component to upwardly push the lower bushing component.