Patents Assigned to Darfon Electronics Corp.
  • Patent number: 11018667
    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.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: May 25, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Chen Yang, Yu-Chun Hsieh, Yung-Chih Wang, Chia-Hung Liu
  • Patent number: 11009971
    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.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: May 18, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Ching-Chin Chang, Wen-Yu Tsai, Feng-Wei Su, Chun-Chieh Chen
  • Patent number: 10994620
    Abstract: An electric bicycle and a battery lift mechanism and a battery carrying device thereof are disclosed. The battery lift mechanism includes a bracket, a carrier for carrying a battery, an upward-force device coupling with the carrier, and a locking device selectively in an unlocked state or a locked state. The carrier is movable relative to the bracket along an up-down path; the upward-force device is capable of applying an upward force to the carrier. When the locking device is in the locked state, the locking device interferes with the battery to limit the relative movement between the battery and the bracket. When the locking device is in the unlocked state, the interference between the locking device and the battery is removed, so that the upward-force device drives the carrier carrying the battery to move upward relative to the bracket.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: May 4, 2021
    Assignees: DARFON ELECTRONICS (SUZHOU) CO., LTD., DARFON ELECTRONICS CORP.
    Inventor: Yu-Chang Shieh
  • Patent number: 10984968
    Abstract: A keyswitch structure includes a base plate, a keycap, and two supports connected to the base plate and the keycap. The keycap is movable relative to the base plate through the two supports. In an embodiment, the support is pivotally connected to the base plate through a pivotal connection structure that includes a guiding slot and a protruding shaft oppositely disposed on the support and the base plate. The guiding slot has an indentation portion and can guide the protruding shaft to fit in the indentation portion. In another embodiment, the support includes a support body connected to the base plate, and an abutting arm extending from the support body. The base plate structurally constrains the support through a hook and a limitation post thereof. The abutting arm of one support extends under the other support, so that the two supports can move each other through the abutting arms.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: April 20, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Cheng-Min Su, Chin-Lung Chan, Yu-Chih Chang
  • Patent number: 10978261
    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.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: April 13, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Zheng-Hong Lai, Chih-Ho Hsu, Che-Wei Lee, Jin-Long Chan, Yuan-bao Chen, Chang-En Sun
  • Patent number: 10971314
    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.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: April 6, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Chih-Hsiang Chiang, Cheng-Min Su, Chin-Lung Chan, Yu-Chih Chang
  • Patent number: 10950394
    Abstract: A key switch includes a base, a key cap, a supporting mechanism, a link bar and a buffer member. The key cap is disposed above the base. The supporting mechanism is connected to the key cap and the base to allow the key cap to move relative to the base upwardly and downwardly. The link bar includes a lower linking end. The buffer member and the base are two independent components. The buffer member is disposed on the base and made of material softer than material of the base. A restraining structure is formed on the buffer member. The lower linking end movably passes through the restraining structure. When the key cap moves relative to the base upwardly and downwardly, the lower linking end is driven to move within the restraining structure correspondingly, so as to reduce noise during movement of the lower linking end relative to the base.
    Type: Grant
    Filed: June 16, 2019
    Date of Patent: March 16, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Pen-Hui Liao, Chin-Hung Lin, Yen-Hsiao Lin, Hsin-Hung Liu, Chia-Fu Cheng
  • Patent number: 10937610
    Abstract: A keyboard includes a plurality of keyswitch structures and an adjusting plate movably disposed under the keyswitch structures. Each of the keyswitch structures includes a tactile feedback member. The adjusting plate includes a plate body and a plurality of adjusting bars protruding from the plate body toward the keyswitch structures and respectively corresponding to the tactile feedback members of the keyswitch structures. When the adjusting plate moves relative to the keyswitch structures, the adjusting bars drive the tactile feedback members to change tactile feedback of the keyswitch structures.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: March 2, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Yung-Chih Wang, Chia-Hung Liu, Yu-Chun Hsieh, Chen Yang, Chih-Yao Chi
  • Patent number: 10930450
    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.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: February 23, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventor: Ling-Hsi Chao
  • Patent number: 10930451
    Abstract: A keyswitch structure includes a base having a positioning means, an cover combined with the base, a plunger with an cam portion movably coupling with the cover relative to the base, a restoring unit disposed between the base and the plunger to provide a restoring force to enable the plunger to move along a direction away from the base, a tactile feedback member having a positioning portion positioned by the positioning means and an extending arm extending across a moving path of the cam portion, and an adjusting unit being movable to drive the positioning portion to shift, so that the tactile feedback member has a first deformation or a second deformation, and a pressing force required for the cam portion to pass the extending arm when the plunger moves toward the base is changed.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: February 23, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Yung-Chih Wang, Chia-Hung Liu, Yu-Chun Hsieh, Chen Yang
  • Patent number: 10895372
    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.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: January 19, 2021
    Assignee: Darfon Electronics Corp.
    Inventors: Heng-Yi Huang, Hsin-Cheng Ho, Tsai-Yu Chen, Hung-Chuan Cheng
  • Patent number: 10892121
    Abstract: A light-emitting keyswitch includes a board, a lifting mechanism and a cap structure. The cap structure is assembled with the lifting mechanism to be movable upward and downward relative to the board and includes a cap and a light-emitting layer. The light-emitting layer includes first and second pad layers disposed on a lateral contour surface of the cap and spaced from each other, a lower electrode layer, a dielectric layer, an electroluminescent layer, an upper electrode layer and a transparent pattern layer stacked on a top surface of the cap, and an external trace structure. The lower and upper electrode layers are connected to the first and second pad layers respectively. The external trace structure is connected to the first and second pad layers for transmitting power to the upper and lower electrode layers, so as to drive the electroluminescent layer to emit light to the transparent pattern layer.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: January 12, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Wei-Yan You, Tsai-Jung Hu
  • Patent number: 10866640
    Abstract: A keyswitch with adjustable tactile feedback is adjusted by an adjusting method. The keyswitch includes a baseplate, an upper housing, an upper bushing component, a lower bushing component, a keycap and a recovering component. The baseplate has an electrode module, the upper housing is disposed on the baseplate, the upper bushing component is movably disposed on the upper housing, the lower bushing component is movably located between the baseplate and the upper housing, and the keycap is connected to a connecting portion of the upper bushing component. The lower bushing component can rotate relative to the baseplate to switch between a first position and a second position. The lower bushing component has a first lateral surface and a second lateral surface with different shapes. The recovering component is disposed between the baseplate and the lower bushing component to upwardly push the lower bushing component.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: December 15, 2020
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Chen Yang, Chia-Hung Liu, Yung-Chih Wang, Yu-Chun Hsieh
  • Patent number: 10868398
    Abstract: A connector module for an electric bicycle is disclosed. The electric bicycle has a first tube and a second tube. The connector module is disposed on intersection between the first tube and the second tube. The connector module includes a first connector and a second connector. The first connector is connected to a first electronic device disposed inside the first tube. The second connector is jointed with the second connector and connected to a second electronic device disposed inside the second tube.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: December 15, 2020
    Assignee: DARFON ELECTRONICS CORP.
    Inventor: An-Yi Ma
  • Patent number: 10867759
    Abstract: A keyswitch structure includes a keycap, a base, and two supports pivotally connected to each other relative to a rotation axis and connected to and between the keycap and the base. One of the supports includes a first shaft recess, a first shaft portion, and a division slot formed therebetween; the other support includes a second shaft recess, a second shaft portion, and a division wall therebetween. The two supports are pivotally connected relative to the rotation axis by the first shaft portion and the second shaft portion rotatably disposed in the first shaft recess and the second shaft recess respectively. Therein, the division wall is inserted into the division slot. The keycap can move up and down relative to the base through the two supports.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: December 15, 2020
    Assignee: DARFON ELECTRONICS CORP.
    Inventor: Ling-Hsi Chao
  • Patent number: 10804049
    Abstract: 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: Grant
    Filed: February 13, 2020
    Date of Patent: October 13, 2020
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Ming-Yuan Hsieh, Liang-Ta Yeh, Po-Chun Hou, Chin-Hung Lin
  • Patent number: 10795565
    Abstract: The present disclosure discloses a method of accelerating scrolling input and a mouse using the method. The mouse detects a scrolling operation through a scrolling input receiving device thereof and determines whether a trigger condition is satisfied. If the trigger condition is satisfied, the mouse operates in an accelerating output state and outputs a scrolling count value in accordance with the corresponding predetermined accelerating output relation.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: October 6, 2020
    Assignee: DARFON ELECTRONICS CORP.
    Inventor: Xi-Sheng Chen
  • Patent number: 10795447
    Abstract: A keyswitch with adjustable tactile feedback is adjusted by an adjusting method. The keyswitch includes a baseplate, an upper housing, an upper bushing component, a lower bushing component, a keycap and a recovering component. The baseplate has an electrode module, the upper housing is disposed on the baseplate, the upper bushing component is movably disposed on the upper housing, the lower bushing component is movably located between the baseplate and the upper housing, and the keycap is connected to a connecting portion of the upper bushing component. The lower bushing component can rotate relative to the baseplate to switch between a first position and a second position. The lower bushing component has a first lateral surface and a second lateral surface with different shapes. The recovering component is disposed between the baseplate and the lower bushing component to upwardly push the lower bushing component.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: October 6, 2020
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Chen Yang, Chia-Hung Liu, Yung-Chih Wang, Yu-Chun Hsieh
  • Patent number: 10770246
    Abstract: A keyboard covering film including a fabric layer, a transparent layer and a mask layer is disclosed. The transparent layer is disposed on an upper surface of the fabric layer. The mask layer is disposed on a lower surface of the fabric layer. The transparent layer and the fabric layer are treated by a hot pressing process to form a number of keycap receiving sections. The keycap receiving sections, the fabric layer and the mask layer are located on the same side of the transparent layer. The fabric layer and the mask layer have hollow patterns within the keycap receiving sections, wherein the hollow patterns are formed by removing a portion of the fabric layer and the mask layer.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: September 8, 2020
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Zheng-Hong Lai, Chih-Ho Hsu, Che-Wei Lee, Jin-Long Chan, Yuan-bao Chen, Chang-En Sun
  • Patent number: 10739639
    Abstract: 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 plurality of first light sources to light individually according to the first data stream. The second light source driver controls the plurality of 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: Grant
    Filed: January 7, 2019
    Date of Patent: August 11, 2020
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Ming-Yen Wu, Yen-Fu Chou, Wen-Jui Chiang