Systems and methods for forming button assemblies for electronic devices are disclosed. According to some embodiments, the button assemblies include one or more sound improvement features to improve the sound that the button assemblies make when pressed by users of the electronic devices. According to some embodiments, the button assemblies include shims that provide proper alignment of the various components of the button assemblies and to accommodate any tolerance stack up of the various components of the button assemblies. The shims can include alignment features to prevent the shims from shifting within the button assemblies. According to some embodiments, thicknesses of the shims are customized to accommodate varying tolerance stack ups of the components of the button assemblies. In some embodiments, the button assemblies include a combination of sound improvement features and shims.

Systems and methods for forming button assemblies for electronic devices are disclosed. According to some embodiments, the button assemblies include one or more sound improvement features to improve the sound that the button assemblies make when pressed by users of the electronic devices. According to some embodiments, the button assemblies include shims that provide proper alignment of the various components of the button assemblies and to accommodate any tolerance stack up of the various components of the button assemblies. The shims can include alignment features to prevent the shims from shifting within the button assemblies. According to some embodiments, thicknesses of the shims are customized to accommodate varying tolerance stack ups of the components of the button assemblies. In some embodiments, the button assemblies include a combination of sound improvement features and shims.

A keyswitch structure includes a base plate, a key cap, a key base, a recovering member and a linkage mechanism having linkage members. The key base is disposed between the key cap and the base plate. The recovering member is disposed between the key cap and the base plate. The linkage members are physically separated from each other, and are respectively inclinedly disposed between the key base and the key cap, and collectively surround the recovering member. One end of each of the linkage members is pivotally connected to the key base, and the other end of each of the linkage members is slidably connected to the key cap.

A keyswitch structure includes a base plate, a key cap, a key base, a recovering member and a linkage mechanism having linkage members. The key base is disposed between the key cap and the base plate. The recovering member is disposed between the key cap and the base plate. The linkage members are physically separated from each other, and are respectively inclinedly disposed between the key base and the key cap, and collectively surround the recovering member. One end of each of the linkage members is pivotally connected to the key base, and the other end of each of the linkage members is slidably connected to the key cap.

A linkage mechanism includes a left wing having two left arms, two left supporting rods that are respectively formed on the left arms, and two left sliding rods that are respectively formed on the left arms, a right wing having two right arms, two right supporting rods that are respectively formed on the right arms, and two right connecting rods that are respectively formed on the right arms, and a hinge unit having two left hinge pins, two right hinge pins, two left hinge holes and two right holes. Each left hinge hole is formed in a respective left arm and is engaged with a respective right hinge pin. Each right hinge hole is formed in a respective right arm and is engaged with a respective left hinge pin.

A linkage mechanism includes a left wing having two left arms, two left supporting rods that are respectively formed on the left arms, and two left sliding rods that are respectively formed on the left arms, a right wing having two right arms, two right supporting rods that are respectively formed on the right arms, and two right connecting rods that are respectively formed on the right arms, and a hinge unit having two left hinge pins, two right hinge pins, two left hinge holes and two right holes. Each left hinge hole is formed in a respective left arm and is engaged with a respective right hinge pin. Each right hinge hole is formed in a respective right arm and is engaged with a respective left hinge pin.

A keyswitch includes a board, a cap, and a support device. The board has first and second bending members and a main body extending along X and Y axes perpendicular to each other. An included angle between a first abutting surface of the first bending member and the X-axis and an included angle between a second abutting surface of the second bending member and the X-axis are greater than 0°. The support device includes first and second support members having first and second hook structures respectively. When the cap is pressed, the first and second hook structures slide on the first and second abutting surfaces respectively to deform the first and second hook structures. When the cap is released, the deformed first and second hook structures drive the first and second support members to slide relatively for making the cap return to a non-pressed position.

A keyswitch includes a board, a cap, and a support device. The board has first and second bending members and a main body extending along X and Y axes perpendicular to each other. An included angle between a first abutting surface of the first bending member and the X-axis and an included angle between a second abutting surface of the second bending member and the X-axis are greater than 0°. The support device includes first and second support members having first and second hook structures respectively. When the cap is pressed, the first and second hook structures slide on the first and second abutting surfaces respectively to deform the first and second hook structures. When the cap is released, the deformed first and second hook structures drive the first and second support members to slide relatively for making the cap return to a non-pressed position.

A button assembly for an electronic device is disclosed. The button assembly integrates a biometric sensor below a top surface of the button. The button assembly is positioned relative to a secondary display of an electronic device. The secondary display can be positioned relative to a keyboard, such as above a top row of keys of the keyboard.

A button assembly for an electronic device is disclosed. The button assembly integrates a biometric sensor below a top surface of the button. The button assembly is positioned relative to a secondary display of an electronic device. The secondary display can be positioned relative to a keyboard, such as above a top row of keys of the keyboard.