Patents Assigned to Darfon Electronics Corp.
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Patent number: 11551889Abstract: A key switch is provided, which includes a base, a cap, a first linkage rod, a second linkage rod, an elastic contraction element, at least one activate member and a thin film circuit unit. The base includes a plurality of first connection portions and a plurality of second connection portions. The first linkage rod is movably connected to the first connection portions and the cap. The second linkage rod is movably connected to the second connection portions and the cap. One end of the elastic contraction element is connected to the first linkage rod, and the other end thereof is connected to the second linkage rod. The activate member is disposed on one of the first linkage rod, the second linkage rod and the cap. The thin film circuit unit includes an activate portion.Type: GrantFiled: January 16, 2020Date of Patent: January 10, 2023Assignee: DARFON ELECTRONICS CORP.Inventors: Yu-Chih Chang, Chin-Lung Chan, Cheng-Min Su
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Publication number: 20220412541Abstract: An illuminating circuit structure includes a film sheet, an illuminant, a printed baseline layer, and a printed pad layer. The printed baseline layer includes a first baseline segment and a second baseline segment printed on the film sheet, while the printed pad layer includes a first bar pad and a second bar pad. For a first baseline head of the first baseline layer and a first pad head of the first bar pad, one of which extends along a first direction and the other of which extends along a second direction not parallel to the first direction. Therefore, the first baseline segment and the first bar pad achieve electrical connection despite of an existed print shifting. Similarly, a second baseline head of the second baseline layer and a second pad head of the second bar pad also can achieve electrical connection despite of an existed print shifting.Type: ApplicationFiled: August 28, 2022Publication date: December 29, 2022Applicant: DARFON ELECTRONICS CORP.Inventors: Hsin-Cheng Ho, Heng-Yi Huang, Yi-Tung Lo
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Patent number: 11538644Abstract: A keyswitch structure includes a keycap, a base, and two supports that are pivotally connected to each other and connected to and between the keycap and the base. The keycap can move up and down relative to the base through the two supports. In an embodiment, the two supports are pivotally connected through an engagement of a shaft with a C-shaped shaft hole. In another embodiment, each support is provided in a form of an n-shaped structure and includes a semi-shaft hole and a shaft portion at two ends of the n-shaped structure respectively. The two supports are pivotally connected by the shaft portions rotatably abutting the corresponding semi-shaft holes.Type: GrantFiled: March 16, 2020Date of Patent: December 27, 2022Assignee: DARFON ELECTRONICS CORP.Inventor: Ling-Hsi Chao
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Patent number: 11531404Abstract: 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.Type: GrantFiled: May 11, 2021Date of Patent: December 20, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Chin-Lung Chan, Wei-Yan You, Po-Yueh Chou
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Patent number: 11520101Abstract: A luminous keyboard and an optical module thereof are provided. The optical module includes a light guide sheet, a reflective film on one side of the light guide sheet, and an optical film on another side of the light guide sheet opposite to the reflective film. The optical film has a mask pattern. The mask pattern defines a light-transparent region, a light-shielding region, and a light modulation region extending from the light-shielding region to the light-transparent region. The light-transparent region allows light to pass therethrough. The light-shielding region blocks light. The light modulation region partially allows light to pass therethrough and partially blocks light, so that an average light-transmitting rate per unit area of the light modulation region is smaller than that of the light-transparent region and larger than that of the light-shielding region.Type: GrantFiled: January 27, 2022Date of Patent: December 6, 2022Assignee: DARFON ELECTRONICS CORP.Inventor: Chao-Yu Chen
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Patent number: 11495421Abstract: 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.Type: GrantFiled: March 10, 2020Date of Patent: November 8, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Jui-Yi Huang, Sheng-Yun Yang, Chin-Hung Lin
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Publication number: 20220336165Abstract: A key structure is provided. The key structure includes a base plate, a key cap and a lifting mechanism is provided. The base plate includes a first bottom wall. The key cap is disposed opposite to the base plate and includes a first cap wall. The lifting mechanism is movably connected between the key cap and the base plate, so that the key cap could reciprocate with respect to the base plate. The lifting mechanism includes a first lower shaft portion and a first upper shaft portion, which are respectively movably connected on the same side of the key cap and the base plate. When the key cap is in a released state, the first upper shaft portion presses against the first cap wall, but the first lower shaft portion is separated from the bottom wall by a maintaining gap.Type: ApplicationFiled: April 11, 2022Publication date: October 20, 2022Applicant: Darfon Electronics Corp.Inventors: Po-Chun HOU, Chin-Hung LIN
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Patent number: 11469474Abstract: A battery assembly includes a battery holding unit and a battery unit removably held by the battery holding unit. The battery unit includes a battery, a first engaging portion, and a second engaging portion. The battery holding unit includes a holding member selectively engaged with the first engaging portion or the second engaging portion to hold the battery unit at a first position or a second position. When the holding member and the first engaging portion relatively move away from each other along a disengagement direction, the battery unit moves along a detachment direction from the first position to the second position at which the holding member engages with the second engaging portion, and the second engaging portion is allowed to move to disengage from the holding member, so that the battery unit moves again along the detachment direction to be removed from the battery holding unit.Type: GrantFiled: March 3, 2020Date of Patent: October 11, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Chia-Hung Liu, Chien-Hung Chen
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Patent number: 11463090Abstract: A touch keyboard includes a keyboard touch electrode module and keyswitches arranged along lengthwise and widthwise directions. The keyboard touch electrode module includes plural key electrode matrixes one-to-one corresponding to plural key projection areas for the keyswitches. The key electrode matrixes are arranged along the lengthwise direction and the widthwise direction. At least two key electrode matrixes unaligned in the widthwise direction are identical to each other. The key electrode matrix includes plural electrodes arranged alternately at an electrode interval. A size of the electrode in the widthwise direction is defined by a function of the electrode interval, a key pitch between two widthwise-adjacent ones of the key projection areas, and an electrode row number covered within the key pitch.Type: GrantFiled: May 5, 2021Date of Patent: October 4, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Wei-Yan You, Chin-Lung Chan, Po-Yueh Chou
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Patent number: 11424090Abstract: A keyswitch support connection structure incudes a bottom plate portion and a joining portion firmly joined with a joining hole of a bottom plate portion to form a support connection portion. In an embodiment, a cantilever plate extends upward from the joining hole. The joining portion encapsulates a holding structure of the cantilever plate. In another embodiment, a protruding bridge portion connected across two sides of the joining hole. The joining portion encapsulates the protruding bridge portion. In another embodiment, the joining portion has a wing portion protruding from a bottom surface of the bottom plate portion and extending parallel to the bottom surface. A keyswitch structure includes a base with the keyswitch support connection structure, a keycap, and two keyswitch supports. The two keyswitch supports are connected to and between the keycap and the base; therein, one of the keyswitch supports is rotatably connected to the support connection portion.Type: GrantFiled: March 30, 2021Date of Patent: August 23, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Po-Chun Hou, Chin-Hung Lin, Liang-Ta Yeh, Ling-Hsi Chao
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Patent number: 11416083Abstract: A keyboard overlay film forming a plurality of keycap accommodating cavities and a key-gap space, the key-gap space surrounding the keycap accommodating cavities, and the keycap accommodating cavities respectively including a key projection surface, wherein the keyboard overlay film includes a top protective layer; a character layer located on a side of the top protective layer forming the keycap accommodating cavities, and the character layer includes a plurality of light-transparent characters respectively corresponding to the key projection surface of the keycap accommodating cavities; a set of touch electrodes located on a side of the character layer opposite to the top protective layer; and a lower protective layer located on a side of the set of touch electrodes opposite to the character layer.Type: GrantFiled: December 29, 2021Date of Patent: August 16, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Chin-Lung Chan, Wei-Yan You
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Publication number: 20220199339Abstract: A backlight keyboard includes a keyswitch assembly, a base and a light guide plate. The keyswitch assembly and the base are suitable for several language keyboards. A first keyswitch and a second keyswitch of a first keyswitch assembly correspond to a third keyswitch of a second keyswitch assembly. A first base and a second base respectively have at least one hole. The light guide plate has a light guide substrate and a light extracting portion. Union of the holes is set as a difference region on the light guide substrate. The light extracting portion is disposed on the difference region and used to guide light through the corresponding hole toward the corresponding keyswitch when the light guide substrate is disposed under the specific base.Type: ApplicationFiled: December 6, 2021Publication date: June 23, 2022Applicant: DARFON ELECTRONICS CORP.Inventor: Chao-Yu Chen
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Patent number: 11367582Abstract: A keyswitch includes a base, a keycap, a lift mechanism, a touch circuitry portion, and an outer covering layer. The keycap is connected to the base through the lift mechanism so as to move up and down relative to the base. The touch circuitry portion is disposed on the top surface of the keycap. A connection circuitry portion extends from the touch circuitry portion. The outer covering layer covers the touch circuitry portion and at least a portion of the connection circuitry portion. Thereby, the keyswitch can provide touch function without excessively increasing the whole thickness of the keyswitch. A keyboard includes a plurality of the keyswitches and therefore can provide touch function without excessively increasing the whole thickness of the keyboard.Type: GrantFiled: March 4, 2020Date of Patent: June 21, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Che-Wei Lee, Chih-Ho Hsu, Zheng-Hong Lai
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Patent number: 11367580Abstract: A keyswitch structure includes a keycap, a baseplate having a buffer space, a support movably disposed between the baseplate and the keycap, a magnetic member having a front section coupling the support, a middle section and a tail end, a magnetic unit disposed below the magnetic member, a switch film having a flexible portion extending over the buffer space. When the keycap is pressed, the support enables the magnetic member to move away from the magnetic unit, so the tail end is away from the flexible portion. When the keycap is released, a magnetic attraction force between the magnetic member and the magnetic unit enables the magnetic member to move toward the magnetic unit, so the tail end firstly contacts and pushes the flexible portion to deform toward the buffer space, and then the middle section contacts the magnetic unit to drive the support to support the keycap upward.Type: GrantFiled: May 8, 2020Date of Patent: June 21, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Sung-Fu Yang, Po-Chun Hou
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Publication number: 20220189714Abstract: A keyswitch support connection structure is a combined structure which includes a structural plate and a joining portion. The joining portion and the structural plate are firmly engaged with each other through a joining structure of the structural plate. The joining structure includes at least one of a protruding portion, a through hole, a side hole, a joining hole, a cantilever plate, and a protruding bridge portion. The joining portion includes at least one hook arm, configured to forma support connection portion. A keyswitch structure includes a base, a keycap above the base, two keyswitch supports connected to and between the base and the keycap, and the keyswitch support connection structure structurally integrated into the base or the keycap. The keycap is vertically movable relative to the base through the two keyswitch supports. One of the two keyswitch supports is connected to the support connection portion.Type: ApplicationFiled: March 2, 2022Publication date: June 16, 2022Applicant: DARFON ELECTRONICS CORP.Inventors: Po-Chun Hou, Chin-Hung Lin
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Publication number: 20220164038Abstract: A backlight keyboard includes a first language keyswitch set having adjacent first and second keyswitches, a first backlight module disposed under the first language keyswitch set, and a masking sheet. The masking sheet is suitable for the backlight keyboard and a second backlight keyboard including a second backlight module and a second language keyswitch set. The first and second keyswitches on the backlight keyboard coincide with a third keyswitch in the second language keyswitch set on the second backlight keyboard. The masking sheet has a first light-exit region layout corresponding to the first, second, and third keyswitches for allowing light to be incident to symbols on the first, second, and third keyswitches. In other words, the masking sheet of the present invention can be applied to different backlight keyboards having different language keyswitch sets.Type: ApplicationFiled: November 24, 2021Publication date: May 26, 2022Applicant: DARFON ELECTRONICS CORP.Inventor: Chao-Yu Chen
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Patent number: 11334172Abstract: A keyboard with light-emitting and touch functions includes a keyswitch, a backlight module having a light source and a light guide plate, a membrane, a capacitive touch sensing sheet disposed on the membrane and the light guide plate, and a board. The keyswitch includes a cap and a support mechanism movably connected to the cap. Light of the light source is incident into the light guide plate and is emitted toward the cap. The membrane has a switch and is selectively disposed on or under the backlight module. The board is disposed under the backlight module and the membrane and has first and second connection members. The first and second connection members pass through the membrane, the light guide plate and the capacitive touch sensing sheet to be movably connected to the support mechanism, so as to make the cap movable downward relative to the board for triggering the switch.Type: GrantFiled: March 8, 2021Date of Patent: May 17, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Chin-Lung Chan, Hsin-Hung Liu, Chih-Ho Hsu
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Publication number: 20220148530Abstract: A backlight apparatus includes a circuit board, a control board, and a connection cable connecting the above components. A first light source driver and a second light source driver are disposed on the circuit board and are electrically connected to a plurality of first light sources and a plurality of second light sources respectively. A connector is disposed on the circuit board. The first and second light source drivers are individually electrically coupled in series to the connector. The control board outputs electrical power, a first data stream, and a second data stream. The first light source driver controls the first light sources to light individually according to the first data stream. The second light source driver controls the second light sources to light individually according to the second data stream. Thereby, the circuit board can control the operation of the light sources individually.Type: ApplicationFiled: January 26, 2022Publication date: May 12, 2022Applicant: DARFON ELECTRONICS CORP.Inventor: Yen-Fu Chou
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Patent number: 11327573Abstract: 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.Type: GrantFiled: May 5, 2021Date of Patent: May 10, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Chih-Hsiang Chiang, Chen Yang, Yu-Chun Hsieh, Po-Yueh Chou
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Patent number: 11328879Abstract: A keyswitch structure includes a base plate, a keycap, a scissors support connecting the keycap and the base plate, a linking support rotatably disposed on the base plate, a movable part movably disposed relative to the base plate, and a magnetic part on the movable part. The linking support includes a magnetic portion and a driving portion. The magnetic part and the magnetic portion produce a magnetic attraction force therebetween. When the movable part is located at a first position, the magnetic part is located under the magnetic portion, and the magnetic attraction force drives the keycap through the linking support to move away relative to the base plate. When the movable part moves from the first position to a second position, the magnetic part moves away relative to the magnetic portion, so that the magnetic attraction force decreases so as to make the keycap move toward the base plate.Type: GrantFiled: July 15, 2019Date of Patent: May 10, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Ming-Yuan Hsieh, Liang-Ta Yeh