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公开(公告)号：US12046426B2
公开(公告)日：2024-07-23
申请号：US17863222
申请日：2022-07-12
Inventor： Chun-Lin Chen , Jui-Yu Wu , Po-Hsiang Yu
IPC: H01H13/06 , H01H3/12 , H01H13/10 , H01H13/14 , H01H13/20 , H01H13/702 , H01H13/705 , H01H13/7073 , H01H13/83
CPC classification number: H01H13/20 , H01H3/125 , H01H13/10 , H01H13/14 , H01H13/702 , H01H13/705 , H01H13/7073 , H01H13/83 , H01H2219/06 , H01H2233/07
Abstract: A key module includes a base plate, a circuit layer and a lifting mechanism. The circuit layer is disposed on the base plate. The lifting mechanism is pivotally connected with the base plate relative to the circuit layer, and the lifting mechanism has an abutment element. The abutment element could interfere with the circuit layer to reduce the noise generated by the key module during operation.
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公开(公告)号：US11450493B2
公开(公告)日：2022-09-20
申请号：US17306950
申请日：2021-05-04
Applicant: Lite-On Technology Corporation
Inventor： Chun-Lin Chen , Jui-Yu Wu
IPC: H01H13/705
Abstract: A key assembly includes a bottom plate, a keycap disposed on the bottom plate, an elastic member disposed between the bottom plate and the keycap, a link member, and a protruding member. The keycap has an inner surface facing the bottom plate and includes a link member pivoting portion protruding from the inner surface. The link member pivoting portion has a pivot hole and an opening communicating with the pivot hole and away from the inner surface. A size of the opening is smaller than a size of the pivot hole. The link member is rotatably disposed in the pivot hole. The protruding member is disposed between the inner surface of the keycap and the link member. The link member is supported by the protruding member and contacts a part of the link member pivoting portion near the opening on a wall surface surrounding the pivot hole.
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13.发明授权公开(公告)号：US10607794B2
公开(公告)日：2020-03-31
申请号：US16004249
申请日：2018-06-08
Inventor： Chun-Lin Chen , Jui-Yu Wu
IPC: H01H13/85 , H01H13/7065 , H01H13/704 , H01H13/79 , H01H13/88 , H01H11/06 , H01H13/83
Abstract: A keyboard includes a plurality of key modules. Each key module includes a baseplate, a circuit membrane disposed on the baseplate, a metal dome disposed on the circuit membrane, an elastic member disposed on the metal dome, and a keycap. The elastic member and the linkage member are configured to be a movable switch mechanism. The circuit membrane has a conductive circuit. The metal dome has an opening corresponding to the conductive circuit of the circuit membrane. A trigger portion protrudes from an underside of the elastic member. When the keycap is pressed, the trigger portion passes through the opening of the metal dome, and moves downwards to abut against the conductive circuit to induce a conducting signal. The movable switch mechanism can be made by a double injection molding method.
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公开(公告)号：US10388473B2
公开(公告)日：2019-08-20
申请号：US16124333
申请日：2018-09-07
Applicant: LITE-ON TECHNOLOGY CORPORATION
Inventor： Chun-Lin Chen
IPC: H01H13/83 , F21V8/00 , H01H13/705
Abstract: A unit type backlight module including a circuit board, a plurality of light emitting units and a plurality of light guide plates is provided. The circuit board is disposed under the key structures. The light emitting units is disposed on the circuit board. The light guide plates are disposed on the circuit board and are separated from each other. The light emitting units and their corresponding light guide plates are disposed under the key structures for each key structure.
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公开(公告)号：US10236138B2
公开(公告)日：2019-03-19
申请号：US15618602
申请日：2017-06-09
Applicant: LITE-ON TECHNOLOGY CORPORATION
Inventor： Chun-Lin Chen , Hsin-Fu Liu
Abstract: A key structure includes a key cap, a bridge assembly, a first supporting part, a second supporting part, an attractable element and a magnet. The bridge assembly includes first and second hinge parts. The first hinge part has a first pivot coupling portion and a first connecting portion. The second hinge part has a second pivot coupling portion and a second connecting portion, wherein the first and second connecting portions are connected on an axis, and the first and second hinge parts rotate with respect to the axis. The first and second supporting parts are coupled to two ends of the first and second pivot coupling portions, respectively. The attractable element is disposed on the second hinge part. The magnet is correspondingly located under the attractable element for providing a magnetic force, so that the attractable element is attracted and positioned by the magnetic force.
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Patent Agency Ranking
公开(公告)号：US09972462B1
公开(公告)日：2018-05-15
申请号：US15643568
申请日：2017-07-07
Inventor： Chun-Lin Chen , Ko-Hsiang Lin
CPC classification number: H01H13/52 , H01H13/04 , H01H13/14 , H01H13/70 , H01H2233/07 , H01H2235/01
Abstract: A mechanical switch structure includes a keycap, a base plate formed with a guiding opening, a scissor unit disposed on the base plate, and a receiving housing. The receiving housing has a first accommodation and a second accommodation. A guiding unit is received in the first accommodation along a pressing direction of the keycap, and is formed with a hillside portion. A first elastic element provides the guiding unit with an elastic force. A resistance module has an abutting unit which is abutted against the hillside portion of the guiding unit, and a second elastic unit to provide the abutting unit with an elastic force toward the guiding unit. The hillside portion is undulate-shaped and faces the guiding unit. The abutting unit is abutted against the hillside portion so as to provide different resistances during a pressing stroke of the keycap.
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公开(公告)号：US09697965B2
公开(公告)日：2017-07-04
申请号：US14842935
申请日：2015-09-02
Applicant: LITE-ON TECHNOLOGY CORPORATION
Inventor： Chun-Lin Chen
IPC: H01H13/705 , H01H13/704 , H01H3/12
CPC classification number: H01H13/705 , H01H3/125 , H01H13/704 , H01H2209/024 , H01H2221/062
Abstract: A key structure with reduced resonant noise includes a base plate formed with a first supporting portion and a second supporting portion, a conductive film layer, an elastic conducting element, a linking rod, and a keycap on the linking rod. The linking rod has a main portion, a first arm extended from one end of the main portion and pivotally connected to the first supporting portion, and a second arm extended from the other end of the main portion and pivotally connected to the second supporting portion. The key cap has a bottom surface pivotally connected to the main portion of the linking rod. The base plate has openings under the linking rod and adjacent to the first supporting portion and the second supporting portion. The openings can reduce resonant effect of clapping sound in the keycap, when the keycap is pressed.
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公开(公告)号：US12255028B2
公开(公告)日：2025-03-18
申请号：US18168579
申请日：2023-02-14
Applicant: Lite-On Technology Corporation
Inventor： Ko-Hsiang Lin , Chun-Lin Chen
Abstract: A key structure including a carrier, a keycap, a lifting member, and an elastic member is provided. The carrier includes a carrier body and multiple positioning hooks. The carrier body has multiple vias, and the positioning hooks are respectively disposed corresponding to the vias. Orthographic projection of each of the positioning hooks falls in the corresponding via. Each of the positioning hooks includes a first positioning portion and a second positioning portion respectively connected to two inner wall surfaces in the corresponding via. The keycap is disposed above the carrier body. The lifting member is disposed between the carrier body and the keycap. One end of the lifting member is connected to the keycap, and an other end of the lifting member is connected to the positioning hooks. The elastic member is disposed between the carrier body and the keycap.
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公开(公告)号：US20220076906A1
公开(公告)日：2022-03-10
申请号：US17306950
申请日：2021-05-04
Applicant: Lite-On Technology Corporation
Inventor： Chun-Lin Chen , Jui-Yu Wu
IPC: H01H13/705
Abstract: A key assembly includes a bottom plate, a keycap disposed on the bottom plate, an elastic member disposed between the bottom plate and the keycap, a link member, and a protruding member. The keycap has an inner surface facing the bottom plate and includes a link member pivoting portion protruding from the inner surface. The link member pivoting portion has a pivot hole and an opening communicating with the pivot hole and away from the inner surface. A size of the opening is smaller than a size of the pivot hole. The link member is rotatably disposed in the pivot hole. The protruding member is disposed between the inner surface of the keycap and the link member. The link member is supported by the protruding member and contacts a part of the link member pivoting portion near the opening on a wall surface surrounding the pivot hole.
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公开(公告)号：US11048119B2
公开(公告)日：2021-06-29
申请号：US16513711
申请日：2019-07-17
Inventor： Chun-Lin Chen , Chin-Fa Wu , Wen-Tong Liu , Er-Hao Chen , Ming-Fu Yen
IPC: H01H13/83 , G02F1/13357
Abstract: A keyboard device and an operating method thereof are provided. The keyboard device includes a microcontroller, a drive circuit, a backlight module, and a plurality of key units. The microcontroller is coupled to a computer device. A detection module of the computer device detects an input mode of the computer device. The plurality of key units is disposed on the backlight module. The plurality of key units each has a plurality of character symbols corresponding to different input modes. The microcontroller outputs a control signal to the drive circuit according to the input mode. The drive circuit drives the backlight module according to the control signal to selectively illuminate one of the plurality of character symbols of each of at least a portion of the plurality of key units.
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