公开(公告)号：US20240038462A1

公开(公告)日：2024-02-01

申请号：US18222487

申请日：2023-07-17

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Wei Tsai ,  Sheng-Yun Yang

IPC: H01H13/7065 ,  H01H13/83

CPC classification number: H01H13/7065 ,  H01H13/83 ,  H01H2219/054

Abstract: A keyboard includes a plurality of keyswitches, a plastic baseplate, and a membrane circuit board. Each keyswitch has a keycap, a lifting mechanism and an elastic member. The lifting mechanism is movably connected to the keycap. The elastic member abuts against the keycap. The plastic baseplate has a first hole formed corresponding to each elastic member and has a connecting structure corresponding to each lifting mechanism. The connecting structure is movably connected to the lifting mechanism to make the keycap movable relative to the plastic baseplate. The membrane circuit board is disposed under the plastic baseplate. Each elastic member passes through the first hole on the plastic baseplate to be disposed on the membrane circuit board. When the keycap is pressed, the elastic member deforms downward to trigger the membrane circuit board. When the keycap is released, the elastic member returns the keycap to its original position.

公开(公告)号：US20240038460A1

公开(公告)日：2024-02-01

申请号：US18222991

申请日：2023-07-17

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Wei Tsai ,  Sheng-Yun Yang

IPC: H01H13/702 ,  H01H13/10

CPC classification number: H01H13/702 ,  H01H13/10

Abstract: A keyboard is applied to mounting on a holding baseplate of a computer device and includes a plurality of keyswitches, a membrane circuit board and a baseplate. The membrane circuit board is disposed under the plurality of keyswitches. The baseplate is disposed between the plurality of keyswitches and the membrane circuit board and is connected to the plurality of keyswitches, so as to make the plurality of keyswitches movable relative to the baseplate for triggering the membrane circuit board. The baseplate has a plurality of hooks. The plurality of hooks passes through the membrane circuit board to be engaged with a plurality of engaging hole structures of the holding baseplate respectively, so as to detachably mount the keyboard on the computer device. A number of the plurality of hooks is greater than forty.

公开(公告)号：US12087522B2

公开(公告)日：2024-09-10

申请号：US18223031

申请日：2023-07-18

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Wei Tsai ,  Yen-Chang Chen ,  Sheng-Yun Yang

IPC: H01H3/12 ,  F21V8/00 ,  G06F3/02

CPC classification number: H01H3/125 ,  G02B6/0055 ,  G02B6/006 ,  G02B6/0061 ,  G02B6/0073 ,  G06F3/0202

Abstract: A backlight module is applied to providing light to a plurality of keyswitches of a keyboard. Each keyswitch has a keycap and an elastic member abutting against the keycap. The backlight module includes a membrane circuit board and a light guide plate. The membrane circuit board has a light emitting diode corresponding to the keyswitch. The light emitting diode is located at a side of the elastic member and emits light to the keycap. The light guide plate is disposed on the membrane circuit board. The light guide plate has a slot hole for containing the light emitting diode and has a hole corresponding to the elastic member. An optical microstructure is formed on the light guide plate for guiding light of the light emitting diode to be incident to the keycap. The elastic member passes through the hole to be disposed on the membrane circuit board.

公开(公告)号：US20240036245A1

公开(公告)日：2024-02-01

申请号：US18223031

申请日：2023-07-18

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Wei Tsai ,  Yen-Chang Chen ,  Sheng-Yun Yang

IPC: F21V8/00

CPC classification number: G02B6/0073 ,  G02B6/0055

Abstract: A backlight module is applied to providing light to a plurality of keyswitches of a keyboard. Each keyswitch has a keycap and an elastic member abutting against the keycap. The backlight module includes a membrane circuit board and a light guide plate. The membrane circuit board has a light emitting diode corresponding to the keyswitch. The light emitting diode is located at a side of the elastic member and emits light to the keycap. The light guide plate is disposed on the membrane circuit board. The light guide plate has a slot hole for containing the light emitting diode and has a hole corresponding to the elastic member. An optical microstructure is formed on the light guide plate for guiding light of the light emitting diode to be incident to the keycap. The elastic member passes through the hole to be disposed on the membrane circuit board.

公开(公告)号：US11495421B2

公开(公告)日：2022-11-08

申请号：US16814985

申请日：2020-03-10

Applicant: DARFON ELECTRONICS CORP.

Inventor： Jui-Yi Huang ,  Sheng-Yun Yang ,  Chin-Hung Lin

IPC: H01H13/705 ,  H01H13/85

Abstract: A keyswitch includes a bottom board, a cap structure, a lifting mechanism, and an elastic member. The lifting mechanism is detachably connected to the cap structure and the bottom board to make the cap structure movable upward and downward relative to the bottom board. The elastic member is connected to the cap structure so as to be detached from the lifting mechanism together with the cap structure when the cap structure is separate from the lifting mechanism.

公开(公告)号：US20220013309A1

公开(公告)日：2022-01-13

申请号：US17089747

申请日：2020-11-05

Applicant: DARFON ELECTRONICS CORP.

Inventor： Sheng-Yun Yang

IPC: H01H13/14 ,  H01H13/10 ,  H01H13/30

Abstract: A restoration assembly of a button switch includes first and second sleeves, and a spring disposed between the two sleeves. A first outer diameter of the first sleeve is less than a second inner diameter of the second sleeve to make the second sleeve movably jacket outside the first sleeve. The jacketed first and second sleeves are disposed between a key cap and a base of the button switch. The spring has a first end portion, a second end portion and a middle section. A middle outer diameter of the middle section of the spring is larger than a first inner diameter of the first sleeve. During the spring being compressed along with the key cap being pressed downward, the middle section is squeezed to shrink and slide into the first sleeve through an end edge of the first sleeve, thereby producing a tactile feedback and/or a first sound.

公开(公告)号：US12087518B2

公开(公告)日：2024-09-10

申请号：US18222487

申请日：2023-07-17

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Wei Tsai ,  Sheng-Yun Yang

IPC: H01H3/12 ,  F21V8/00 ,  G06F3/02 ,  H01H13/7065 ,  H01H13/83

CPC classification number: H01H13/7065 ,  H01H13/83 ,  H01H2219/054

Abstract: A keyboard includes a plurality of keyswitches, a plastic baseplate, and a membrane circuit board. Each keyswitch has a keycap, a lifting mechanism and an elastic member. The lifting mechanism is movably connected to the keycap. The elastic member abuts against the keycap. The plastic baseplate has a first hole formed corresponding to each elastic member and has a connecting structure corresponding to each lifting mechanism. The connecting structure is movably connected to the lifting mechanism to make the keycap movable relative to the plastic baseplate. The membrane circuit board is disposed under the plastic baseplate. Each elastic member passes through the first hole on the plastic baseplate to be disposed on the membrane circuit board. When the keycap is pressed, the elastic member deforms downward to trigger the membrane circuit board. When the keycap is released, the elastic member returns the keycap to its original position.

公开(公告)号：US12087517B2

公开(公告)日：2024-09-10

申请号：US18222991

申请日：2023-07-17

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Wei Tsai ,  Sheng-Yun Yang

IPC: H01H3/12 ,  F21V8/00 ,  G06F3/02 ,  H01H13/10 ,  H01H13/702

CPC classification number: H01H13/702 ,  H01H13/10

Abstract: A keyboard is applied to mounting on a holding baseplate of a computer device and includes a plurality of keyswitches, a membrane circuit board and a baseplate. The membrane circuit board is disposed under the plurality of keyswitches. The baseplate is disposed between the plurality of keyswitches and the membrane circuit board and is connected to the plurality of keyswitches, so as to make the plurality of keyswitches movable relative to the baseplate for triggering the membrane circuit board. The baseplate has a plurality of hooks. The plurality of hooks passes through the membrane circuit board to be engaged with a plurality of engaging hole structures of the holding baseplate respectively, so as to detachably mount the keyboard on the computer device. A number of the plurality of hooks is greater than forty.

公开(公告)号：US11264185B2

公开(公告)日：2022-03-01

申请号：US17089747

申请日：2020-11-05

Applicant: DARFON ELECTRONICS CORP.

Inventor： Sheng-Yun Yang

IPC: H01H13/14 ,  H01H13/30 ,  H01H13/10

Abstract: A restoration assembly of a button switch includes first and second sleeves, and a spring disposed between the two sleeves. A first outer diameter of the first sleeve is less than a second inner diameter of the second sleeve to make the second sleeve movably jacket outside the first sleeve. The jacketed first and second sleeves are disposed between a key cap and a base of the button switch. The spring has a first end portion, a second end portion and a middle section. A middle outer diameter of the middle section of the spring is larger than a first inner diameter of the first sleeve. During the spring being compressed along with the key cap being pressed downward, the middle section is squeezed to shrink and slide into the first sleeve through an end edge of the first sleeve, thereby producing a tactile feedback and/or a first sound.

公开(公告)号：US20200294737A1

公开(公告)日：2020-09-17

申请号：US16814985

申请日：2020-03-10

Applicant: DARFON ELECTRONICS CORP.

Inventor： Jui-Yi Huang ,  Sheng-Yun Yang ,  Chin-Hung Lin

IPC: H01H13/705 ,  H01H13/85

Abstract: A keyswitch includes a bottom board, a cap structure, a lifting mechanism, and an elastic member. The lifting mechanism is detachably connected to the cap structure and the bottom board to make the cap structure movable upward and downward relative to the bottom board. The elastic member is connected to the cap structure so as to be detached from the lifting mechanism together with the cap structure when the cap structure is separate from the lifting mechanism.