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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.
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公开(公告)号：US20240379303A1
公开(公告)日：2024-11-14
申请号：US18780572
申请日：2024-07-23
Applicant: Darfon Electronics Corp.
Inventor： Yen-Chang CHEN , Po-Yueh CHOU
Abstract: A backlight module for a lighting keyboard including at least two heat-dissipating keys comprises a reflective layer, a light guide panel and a shielding sheet and has at least two penetration channels. The reflective layer, the light guide panel and the shielding sheet are stacked up and down. The penetration channels symmetrically correspond to the heat-dissipating keys respectively and penetrate the reflective layer, the light guide panel and the shielding sheet. The penetration channels are respectively provided with one light-reducing pattern at their periphery for blocking light. At least two diffusion patterns are arranged adjacent to the light-reducing patterns for guiding light to illuminate the heat-dissipating keys. The light-reducing patterns and the diffusion patterns form at least two heat-reducing optical pattern groups respectively. The heat-reducing optical pattern groups respectively corresponding to the heat-dissipating keys have identical patterns.
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公开(公告)号：US20240274379A1
公开(公告)日：2024-08-15
申请号：US18398285
申请日：2023-12-28
Applicant: Darfon Electronics Corp.
Inventor： Yen-Chang CHEN , Po-Yueh CHOU
CPC classification number: H01H13/023 , G02B6/0035 , G02B6/0085 , G06F3/0202 , H01H2219/056 , H01H2219/06 , H01H2219/062
Abstract: A backlight module for a lighting keyboard including at least two heat-dissipating keys comprises a reflective layer, a light guide panel and a shielding sheet and has at least two penetration channels. The reflective layer, the light guide panel and the shielding sheet are stacked up and down. The penetration channels symmetrically correspond to the heat-dissipating keys respectively and penetrate the reflective layer, the light guide panel and the shielding sheet. The penetration channels are respectively provided with one light-reducing pattern at their periphery for blocking light. At least two diffusion patterns are arranged adjacent to the light-reducing patterns for guiding light to illuminate the heat-dissipating keys. The light-reducing patterns and the diffusion patterns form at least two heat-reducing optical pattern groups respectively. The heat-reducing optical pattern groups respectively corresponding to the heat-dissipating keys have identical patterns.
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公开(公告)号：US20210357037A1
公开(公告)日：2021-11-18
申请号：US17308245
申请日：2021-05-05
Applicant: Darfon Electronics Corp.
Inventor： Chih-Hsiang CHIANG , Chen YANG , Yu-Chun HSIEH , Po-Yueh CHOU
IPC: G06F3/02 , G06F3/01 , H01H13/7065
Abstract: A keyboard includes a cover plate having a plurality of first keyholes, an adjustment mechanism disposed under the cover plate, and a plurality of keyswitches. The adjustment mechanism includes an adjustment frame and a plurality of adjustment portions. The adjustment frame includes a plurality of ribs defining a plurality of second keyholes corresponding to the plurality of first keyholes, respectively. Each of the adjustment portions is proximate to a corresponding one of the second keyholes. Each of the keyswitches includes a tactile feedback member and is located in corresponding first and second keyholes, so that the adjustment portion corresponds to the tactile feedback member of its corresponding keyswitch. The adjustment frame is movable relative to the cover plate, so that each of the adjustment portions drives a portion of the tactile feedback member to move, to change tactile feedback of the keyswitches.
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公开(公告)号：US20230353149A1
公开(公告)日：2023-11-02
申请号：US18350787
申请日：2023-07-12
Applicant: Darfon Electronics Corp.
Inventor： Chen Yang , Yu-Chun HSIEH , Li-Te CHANG , Po-Yueh CHOU
IPC: H03K17/968 , H01H13/705 , H01H13/14
CPC classification number: H03K17/968 , H01H13/705 , H01H13/14 , 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.
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Patent Agency Ranking
公开(公告)号：US20220385288A1
公开(公告)日：2022-12-01
申请号：US17812785
申请日：2022-07-15
Applicant: Darfon Electronics Corp.
Inventor： Chen YANG , Yu-Chun HSIEH , Li-Te CHANG , Po-Yueh CHOU
IPC: H03K17/968 , H01H13/705 , H01H13/14
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.
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公开(公告)号：US20250093570A1
公开(公告)日：2025-03-20
申请号：US18890846
申请日：2024-09-20
Applicant: Darfon Electronics Corp.
Inventor： Yi-Jui PAN , Po-Yueh CHOU
IPC: F21V8/00 , H01H13/02 , H01H13/702
Abstract: A backlit circuit board for supporting a keycap is provided. The backlit circuit board includes a substrate having a plurality of ribs configured to define a plurality of openings penetrating through the substrate and a plurality of coupling members disposed on the substrate and configured to directly or indirectly connect the keycap, a lighting circuit disposed on the substrate at a same side as the coupling members and extending over the plurality of ribs, and an illuminant electrically connected to the lighting circuit and disposed on one of the plurality of ribs, wherein the illuminant vertically corresponds to a light impermeable region of the keycap, and a vertical projection of the light impermeable region at least partially overlaps the plurality of ribs.
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公开(公告)号：US20250093569A1
公开(公告)日：2025-03-20
申请号：US18884569
申请日：2024-09-13
Applicant: Darfon Electronics Corp.
Inventor： Yi-Jui PAN , Po-Yueh CHOU
Abstract: A lighting board for supporting at least one keycap is provided. The lighting board includes a substrate having an insulation surface, a plurality of openings penetrating through the substrate, and a plurality of coupling members disposed on the substrate and configured to directly or indirectly connect the at least one keycap, a lighting circuit disposed on the insulation surface at a side opposite to the coupling members, an illuminant electrically connected to the lighting circuit, and a protective layer disposed on the insulation surface and covering the lighting circuit.
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公开(公告)号：US20230052943A1
公开(公告)日：2023-02-16
申请号：US17819649
申请日：2022-08-15
Applicant: Darfon Electronics Corp.
Inventor： Yu-Chun HSIEH , Chen YANG , Shao-Lun HSIAO , Po-Yueh CHOU
IPC: G06F3/01 , H01H13/85 , G06F3/0354 , G06F3/02
Abstract: A mute-able input device with keystroke tactile feedback includes: a plurality of keys, each including a tactile structure and a sound-generating structure for respectively generating operational tactile feedback and operating sounds; a plurality of adjusting mechanisms, each including an adjusting portion corresponding to one of the keys; at least one switching unit including an operating portion and a switch member, the operating portion connecting the switch member and the adjusting mechanism, the switch member generating a switching signal involving a mode switching between different tactile modes or different sound modes for one or more keys. When the operating portion moves in response to a force, the switch member is triggered to achieve the mode switching; meanwhile, the adjusting portion moves to interfere with at least one of the tactile structure or the sound-generating structure along with the movement of the operating portion.
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公开(公告)号：US20210349548A1
公开(公告)日：2021-11-11
申请号：US17316762
申请日：2021-05-11
Applicant: Darfon Electronics Corp.
Inventor： Chin-Lung CHAN , Wei-Yan YOU , Po-Yueh CHOU
Abstract: A luminous touch keyboard includes a baseplate, a plurality of keycaps, a plurality of support mechanisms connected between the baseplate and the keycaps, and a keyboard composite electrode module disposed between the baseplate and the keycaps and configured to sense a non-pressing movement over the keycaps and to provide light emitting through the keycaps. The support mechanism supports the keycap to move relative to the baseplate and the keyboard composite electrode module. The keyboard composite electrode module includes a light source circuit and a plurality of electrode matrices arranged along a first direction and a second direction. Two of the electrode matrices adjacent in the second direction are mis-aligned. The light source circuit includes a plurality of light sources disposed in the plurality of electrode matrices in a one-to-one manner, and the position of the light source in the electrode matrix is correspondingly the same.
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