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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：US20210304979A1
公开(公告)日：2021-09-30
申请号：US17216707
申请日：2021-03-30
Applicant: DARFON ELECTRONICS CORP.
Inventor： Po-Chun Hou , Chin-Hung Lin , Liang-Ta Yeh , Ling-Hsi Chao
Abstract: A keyswitch support connection structure incudes a bottom plate portion, a cantilever plate, and a joining portion. The cantilever plate extends upward from a joining hole of the bottom plate portion and has a holding structure. The joining portion and the joining hole are firmly engaged with each other. The joining portion encapsulates the holding structure. The joining portion and the bottom plate portion jointly form or the joining portion alone forms a support connection portion. A keyswitch structure includes a base, a keycap above the base, and first and second keyswitch supports connected to and between the keycap and the base. The base includes the above keyswitch support connection structure. The first keyswitch support is rotatably connected to the support connection portion.
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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.
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公开(公告)号：US11009971B2
公开(公告)日：2021-05-18
申请号：US16541194
申请日：2019-08-15
Applicant: DARFON ELECTRONICS CORP.
Inventor： Ching-Chin Chang , Wen-Yu Tsai , Feng-Wei Su , Chun-Chieh Chen
IPC: G06F3/0354 , G06F3/0362
Abstract: An input device includes a wheel supporting structure, a scroll wheel, a hook part, a linking part, and a switching mechanism. The scroll wheel is rotatably supported by the wheel supporting structure, is exposed from the input device, and has a rotary shaft with a plurality of toothed slots thereon. The hook part is disposed biased on the wheel supporting structure to selectively engage with the toothed slots. The linking part is pivotally connected to the wheel supporting structure. The switching mechanism includes an abutting part and a switching part. The abutting part abuts against the linking part. The switching part is coupled to the abutting part. Therein, the switching mechanism is operable to move the abutting part through the switching part to rotate the linking part to abut against and move the hook part to disengage from the toothed slots.
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公开(公告)号：US10978261B2
公开(公告)日：2021-04-13
申请号：US16897384
申请日：2020-06-10
Applicant: Darfon Electronics Corp.
Inventor： Zheng-Hong Lai , Chih-Ho Hsu , Che-Wei Lee , Jin-Long Chan , Yuan-bao Chen , Chang-En Sun
IPC: H01H13/86 , H01H13/705 , H01H13/06
Abstract: A method for fabricating a keyboard covering film is provided. The method includes steps of: coating a transparent plastic material on an upper surface of a fabric layer before the transparent plastic material is cured; treating the fabric layer and the transparent plastic material by a hot press process to cure the transparent plastic material to form a transparent layer and to make the transparent layer and the fabric layer jointly form a number of keycap receiving sections; forming a mask layer on a lower surface of the fabric layer; removing a portion of the mask layer and a portion of the fabric layer located within each of the keycap receiving sections to form a number of hollow patterns.
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公开(公告)号：US10971314B2
公开(公告)日：2021-04-06
申请号：US16880920
申请日：2020-05-21
Applicant: DARFON ELECTRONICS CORP.
Inventor： Chih-Hsiang Chiang , Cheng-Min Su , Chin-Lung Chan , Yu-Chih Chang
Abstract: A key switch includes a base, a key cap, a first support member and a second support member. The key cap is disposed with respect to the base. The first support member and the second support member are disposed between the key cap and the base. The first support member has a first linkage structure. The second support member has a second linkage structure. The first linkage structure and the second linkage structure abut against each other, such that the first support member and the second support member rotate synchronously with respect to a horizontal axis. When one of the first support member and the second support member horizontally moves with respect to the other one of the first support member and the second support member within a predetermined range along the horizontal axis, the first linkage structure and the second linkage structure keep abutting against each other.
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公开(公告)号：US10930450B2
公开(公告)日：2021-02-23
申请号：US16691533
申请日：2019-11-21
Applicant: DARFON ELECTRONICS CORP.
Inventor： Ling-Hsi Chao
Abstract: A keyswitch includes a keycap, first and second base plate, a supporting device, and a bracket. The keycap moves between an upward position and a downward position through the supporting device. The bracket is movably disposed between the keycap and the first base. The second base plate is disposed opposite to the first base plate and moves between an operation position and a storage position. When the second base plate is located at the operation position, the bracket abuts against a supporting portion of the second base plate, and a magnetic attraction force produced by two magnetic areas of the first base plate and the bracket respectively keeps the keycap at the upward position. When the second base plate is located at the storage position, the bracket is separated from the supporting portion, and the magnetic attraction force keeps the keycap at the downward position.
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公开(公告)号：US10895372B2
公开(公告)日：2021-01-19
申请号：US16263017
申请日：2019-01-31
Applicant: Darfon Electronics Corp.
Inventor： Heng-Yi Huang , Hsin-Cheng Ho , Tsai-Yu Chen , Hung-Chuan Cheng
Abstract: A light source board includes a substrate; a metal reactive layer disposed on the substrate; a metal conductive layer disposed on the metal reactive layer; a metal alloy layer disposed on the metal conductive layer; and at least one light source disposed on the metal alloy layer. A material of the metal reactive layer is a Sn—Bi type alloy or a Sn—Ag—Cu type alloy, and arrangements of materials of the metal reactive layer and the metal conductive layer are respectively an arrangement of silver paste and copper, an arrangement of silver paste and nickel, an arrangement of silver paste and silver, an arrangement of copper paste and copper, an arrangement of copper paste and nickel, or an arrangement of copper paste and silver.
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49.发明申请
公开(公告)号：US20190371538A1
公开(公告)日：2019-12-05
申请号：US16208657
申请日：2018-12-04
Applicant: Darfon Electronics Corp.
Inventor： Heng-Yi HUANG , Hsin-Cheng HO , Tsai-Yu CHEN , Hung-Chuan CHENG
Abstract: A light source board includes a substrate, a composite circuit layer on the substrate, a first protective layer on the composite circuit layer, and a plurality of light sources on the pad portions, respectively. The substrate has a long side, a first short side, and a second short side. The composite circuit layer includes a first conductive trace layer and a second conductive trace layer stacked on the first conductive trace layer. A conductivity of the second conductive trace layer is higher than a conductivity of the first conductive trace layer. The composite circuit layer has a wire portion formed of at least the first conductive trace layer and a plurality of pad portions each formed of at least the first conductive trace layer and the second conductive trace layer. The wire portion is electrically coupled to the pad portions. The first protective layer exposes the pad portions.
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公开(公告)号：US10148216B2
公开(公告)日：2018-12-04
申请号：US14736286
申请日：2015-06-11
Applicant: DARFON ELECTRONICS CORP.
Inventor： Frank O'Young , Yen-Jen Chen
Abstract: A package of a supporting device for photovoltaic panels includes a container and components, for forming the supporting device, packed in the container. The components include at least two frame supports, of which at least one is provided with an inverter attached thereon in advance. Thereby, a user can quickly assemble the supporting device. Furthermore, the inverter is substantially positioned in the container, which is conducive to stabilization in the weight distribution of the components in the container and facilitates the transport of the package. In addition, a kit for forming a supporting device for at least one photovoltaic panel includes components for forming the supporting device. The kit can be provided without a container for accommodating the components. Similarly, the components include at least two frame supports, of which at least one is provided with an inverter attached thereon in advance, which facilitates the assembly of the supporting device.
