A key includes a cap, a spring, a magnet, a spring supporting device, an upper limit device, a lower limit device, a displacement detection device, and a displacement determination device; the spring is located below the cap and, the spring is disposed on the spring supporting device; the magnet is placed on either of the upper limit device or lower limit device; the spring is magnetically pressed against the magnet; the displacement detection device is mounted on the spring and moves between the upper limit device and lower limit device following deformation of the spring; the cap is configured to generate a click motion; the displacement determination device is located at one side of the displacement detection device; the device moves back and forth with respect to the displacement determination device following the movement of the spring; and the displacement determination device is electrically connected with an external circuit.

A key includes a cap, a spring, a magnet, a spring supporting device, an upper limit device, a lower limit device, a displacement detection device, and a displacement determination device; the spring is located below the cap and, the spring is disposed on the spring supporting device; the magnet is placed on either of the upper limit device or lower limit device; the spring is magnetically pressed against the magnet; the displacement detection device is mounted on the spring and moves between the upper limit device and lower limit device following deformation of the spring; the cap is configured to generate a click motion; the displacement determination device is located at one side of the displacement detection device; the device moves back and forth with respect to the displacement determination device following the movement of the spring; and the displacement determination device is electrically connected with an external circuit.

A switch assembly including a socket, a top cap, and an intermediate cart located in the socket. The intermediate cart is slidable with the socket. The top cap is in a spherical or pivot engagement with the intermediate cart. An activation force of the sliding movement is lower than an activation force of the spherical or pivot movement.

A switch assembly including a socket, a top cap, and an intermediate cart located in the socket. The intermediate cart is slidable with the socket. The top cap is in a spherical or pivot engagement with the intermediate cart. An activation force of the sliding movement is lower than an activation force of the spherical or pivot movement.

An apparatus for providing a switch mechanism comprises a housing and a pressure sensitive device mounted to the housing. An actuator is moveably connected to the housing to enable the actuator to move along an axis towards and away from the pressure sensitive device. A resilient member has a first end connected to the actuator and a second end connected to the pressure sensitive device.

An apparatus for providing a switch mechanism comprises a housing and a pressure sensitive device mounted to the housing. An actuator is moveably connected to the housing to enable the actuator to move along an axis towards and away from the pressure sensitive device. A resilient member has a first end connected to the actuator and a second end connected to the pressure sensitive device.

A button composite structure according to an embodiment includes a display panel including a first substrate, a second substrate on the first substrate, and a liquid crystal layer between the first substrate and the second substrate, a member on the second substrate, a first coupling member that couples the display panel and one surface of the member, a button structure disposed on the other surface opposite to the one surface of the member, and a second coupling member that couples the other surface of the member and the button structure. The member includes a third substrate, and the button structure is directly coupled to the third substrate by the second coupling member.

A button composite structure according to an embodiment includes a display panel including a first substrate, a second substrate on the first substrate, and a liquid crystal layer between the first substrate and the second substrate, a member on the second substrate, a first coupling member that couples the display panel and one surface of the member, a button structure disposed on the other surface opposite to the one surface of the member, and a second coupling member that couples the other surface of the member and the button structure. The member includes a third substrate, and the button structure is directly coupled to the third substrate by the second coupling member.

A key structure includes a base, a movable mechanism movably positioned on the base, a sound generating member positioned on the base, and an adjusting unit movable relative to the base to be at a first position or a second position. The sound generating member has a hitting portion, which extends corresponding to an impact surface. When the adjusting unit is at the first position, and a pressing force is applied to the movable mechanism, the movable mechanism moves relative to the base and drives the sound generating member to move, so the hitting portion moves to hit the impact surface to generate a hitting sound. When the adjusting unit is at the second position, the adjusting unit restricts movement of the hitting portion, so the hitting portion cannot move to hit the impact surface.

A key structure includes a base, a movable mechanism movably positioned on the base, a sound generating member positioned on the base, and an adjusting unit movable relative to the base to be at a first position or a second position. The sound generating member has a hitting portion, which extends corresponding to an impact surface. When the adjusting unit is at the first position, and a pressing force is applied to the movable mechanism, the movable mechanism moves relative to the base and drives the sound generating member to move, so the hitting portion moves to hit the impact surface to generate a hitting sound. When the adjusting unit is at the second position, the adjusting unit restricts movement of the hitting portion, so the hitting portion cannot move to hit the impact surface.