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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.
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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.
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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.
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公开(公告)号：US20190221384A1
公开(公告)日：2019-07-18
申请号：US16245213
申请日：2019-01-10
Applicant: DARFON ELECTRONICS CORP.
Inventor： Chih-Hao Chen , Po-Wei Tsai , Chun-Yuan Wang , Kuan-Te Lin , Shao-Wei Yang , Ling-Hsi Chao
IPC: H01H13/7065 , H01H3/12 , H01H13/14
Abstract: A keyswitch structure includes a base plate, a keycap, a first support, and a second support. The keycap is located above the base plate. The first support is connected to and between the keycap and the base plate and has an upper connection portion, a lower connection portion, and a protruding limitation portion. The upper connection portion is located between the lower connection portion and the protruding limitation portion. The first support is rotatably connected to the keycap and the base plate through the upper connection portion and the lower connection portion respectively. The protruding limitation portion is located close to and under the cap body. The second support is connected to and between the keycap and the base plate. The keycap moves up and down relative to the base plate through the first support and the second support.
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公开(公告)号：US20240404770A1
公开(公告)日：2024-12-05
申请号：US18657796
申请日：2024-05-08
Applicant: DARFON ELECTRONICS CORP.
Inventor： Po-Wei Tsai
IPC: H01H13/70
Abstract: A plastic board suitable for a keyboard having first and second keyswitch sets includes first and second board portions and transverse dividing slots. The first and second board portions have first and second mounting areas respectively corresponding to the first and second keyswitch sets. First dividing slots of the first board portion extend sequentially along a periphery of at least one first mounting area to separate first and second board regions. Second dividing slots of the second board portion extend sequentially along a periphery of at least one second mounting area to separate third and fourth board regions. The transverse dividing slots are formed separately between the first and second board portions to separate the first and third board regions and separate the second and fourth board regions. The first, second, third, and fourth board regions have a feeding point, respectively, to be formed by an injection molding process.
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Patent Agency Ranking
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.
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公开(公告)号：US20140204556A1
公开(公告)日：2014-07-24
申请号：US14160485
申请日：2014-01-21
Inventor： Po-Wei Tsai
IPC: F21V8/00
CPC classification number: G02B6/0021 , G02B6/0055 , G02B6/0083 , G06F3/0202 , H01H3/125 , H01H13/83 , H01H2203/052 , H01H2215/004 , H01H2219/014 , H01H2219/036 , H01H2219/044 , H01H2219/06 , H01H2219/062 , H01H2227/036
Abstract: A back light structure for a keyboard with back light includes a supporting plate, a light guiding plate, a flexible circuit board, and a light-emitting component. Keyswitch structures of the keyboard are disposed on the supporting plate. The light guiding plate is disposed under the supporting plate and has a through hole and a lateral surface. The circuit board adheres onto both a lower surface of the light guiding plate and a bottom surface of the supporting plate and covers the lateral surface. The light-emitting component is disposed on the circuit board in the through hole. Thereby, the circuit board also performs as a light shading structure for the lateral surface. A light reflection sheet need not cover both the lateral surface and the circuit board for avoiding light leakage but adheres onto only the lower surface, conducive to reducing the structural thickness of the back light structure.
Abstract translation: 具有背光的键盘的背光结构包括支撑板，导光板，柔性电路板和发光部件。 键盘的钥匙开关结构设置在支撑板上。 导光板设置在支撑板的下方，具有通孔和侧面。 电路板粘附在导光板的下表面和支撑板的底表面上并覆盖侧表面。 发光部件设置在通孔中的电路板上。 由此，电路基板也作为侧面的遮光结构。 光反射片不需要覆盖侧表面和电路板以避免漏光，而仅粘附在下表面上，有利于减小背光结构的结构厚度。
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公开(公告)号：US20240120160A1
公开(公告)日：2024-04-11
申请号：US18372705
申请日：2023-09-26
Applicant: DARFON ELECTRONICS CORP.
Inventor： Po-Wei Tsai , Wun-Huei Wang , Kuei-Lin Teng
IPC: H01H13/20 , H01H13/14 , H01H13/702
CPC classification number: H01H13/20 , H01H13/14 , H01H13/702
Abstract: A keyswitch includes a board, a cap located above the board, a membrane circuit board disposed on the board to make first and second engaging structures of the board protrude from first and second holes of the membrane circuit board respectively, and a lifting device. The lifting device is connected to the cap and the board and includes first and second support members. The first support member is movably connected to the cap and has a pivot end portion. The pivot end portion is movably connected to the first and second engaging structures and has a first abutting portion extending toward edges of the first and second holes along a pivot axis of the first engaging structure. The first abutting portion abuts on the membrane circuit board. The second support member rotatably intersects with the first support member and is movably connected to the cap and the board.
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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.
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公开(公告)号：US10672570B2
公开(公告)日：2020-06-02
申请号：US16245213
申请日：2019-01-10
Applicant: DARFON ELECTRONICS CORP.
Inventor： Chih-Hao Chen , Po-Wei Tsai , Chun-Yuan Wang , Kuan-Te Lin , Shao-Wei Yang , Ling-Hsi Chao
IPC: H01H13/7065 , H01H13/14 , H01H3/12
Abstract: A keyswitch structure includes a base plate, a keycap, a first support, and a second support. The keycap is located above the base plate. The first support is connected to and between the keycap and the base plate and has an upper connection portion, a lower connection portion, and a protruding limitation portion. The upper connection portion is located between the lower connection portion and the protruding limitation portion. The first support is rotatably connected to the keycap and the base plate through the upper connection portion and the lower connection portion respectively. The protruding limitation portion is located close to and under the cap body. The second support is connected to and between the keycap and the base plate. The keycap moves up and down relative to the base plate through the first support and the second support.
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