A keyboard device includes plural key structures. Each key structure includes a keycap, a membrane circuit board, a key frame, an elastic conduction element and a connecting member. The membrane circuit board is located under the keycap. The key frame is arranged between the keycap and the membrane circuit board. The key frame includes a frame body and a bottom plate. The bottom plate is arranged between the key frame and the membrane circuit board. The bottom plate includes a perforation. The elastic conduction element is arranged between the keycap and the bottom plate of the key frame. The perforation is covered by the elastic conduction element. The connecting member is arranged between the keycap and the bottom plate of the key frame. The keycap is movable upwardly or downwardly relative to the bottom plate of the key frame through the connecting member.

A key device for a keyboard includes a circuit board, a keycap located over the circuit board, a supporting plate disposed under the circuit board, a first stabilizing member, a second stabilizing member and two supporting members. The supporting plate includes two first mounting seats cooperatively defining a rotating axis extending in a first direction. Each of the first stabilizing member and the second stabilizing member is made of a plastic material, slidably engages the keycap, and is rotatably mounted to the first mounting seats. When the keycap is pressed toward the supporting plate, the first stabilizing member and the second stabilizing member rotate relative to the supporting plate about the rotating axis.

A keyboard includes keys protruding from an upper surface of the keyboard. The keys includes switches. The keyboard includes a printed circuit electrically coupled to the switches of the keys. The printed circuit is configured to generate signals responsive to operation of the switches of the keys. The keyboard includes a display below the upper surface of the keyboard. The display includes a visual side facing the upper surface of the keyboard. The display is configured to present content on the visual side of the display such that at least some of the content is visible through the upper surface of the keyboard.

A tactile-adjustable keyboard includes plural keyswitches, an adjustment frame and a hybrid operation button. The adjustment frame is disposed corresponding to the keyswitches to move and interfere at least one of the keyswitches. The hybrid operation button includes a tactile switch, a non-tactile knob disposed at least partially surrounding the tactile switch, and a lens disposed at least partially surrounding the non-tactile knob. The tactile switch includes a switch shaft and a switch bar. The switch shaft is disposed in rotatable connection with the adjustment frame to move the adjustment frame. The switch bar extends externally from the switch shaft. A tactile feedback of said one keyswitch changes in response to the rotation of the tactile switch, while a non-tactile signal is generated in response to the rotation of the non-tactile knob, and the lens is illuminated in response to the rotation of the tactile switch.

A system may comprise a printed circuit board (PCB) including a top surface, and a bracket including a top surface configured to receive and couple to a key switch and a bottom surface including at least two protrusions that extend normal to the bottom surface of the bracket. The bracket can be configured to mount to the PCB such that the bottom surface of the bracket is coupled to the top surface of the PCB, and the at least two protrusions may each include conductive leads that couple to the top surface of the PCB. The bracket is configured to only cover a portion of a bottom surface of the key switch when coupled to the key switch. An LED can be mounted to the top surface of the PCB, laterally adjacent to the bracket, and under the key switch at a location not covered by the bracket.

A keyboard and a notebook computer with the keyboard are provided. The keyboard is installed on the notebook computer. The keyboard includes a membrane circuit board, a key frame, a key, a linking rod and a fixing plate. The linking rod is connected with the key frame. The fixing plate is disposed under the key frame. While the linking rod is rotated relative to the key frame to push the key frame, a position-limiting structure of the key frame is moved along a guiding structure of the fixing plate. Consequently, the key frame is limited to be moved in a first axial direction. Moreover, when the key frame is moved to a locked position at the same level with a keycap of the key, the keycap cannot be pressed down.

A switching system may include a body and a set of key elements. The body may be electrically connectable to a first electrical device and a second electrical device, and may have a keypad with key element attachment features to which the key elements can be attached. The key elements may be attachable in various positions and/or combinations on the keypad. The key elements may include one or more buttons of various sizes and/or a rocker. The keypad may have multiple positions to which key elements can be attached, with larger key elements requiring multiple positions. The key element attachment features may be domes, which may be inserted into holes in tabs extending from the key elements to pivotably attach the key elements to the keypad. Each key element may be retained on the keypad independently of any other component aside from the keypad and the key element.

Panel assemblies and button trees for panel assemblies are provided. In one embodiment, a button tree includes a frame, and a plurality of arms extending from the frame. At least one of the plurality of arms includes a plurality of branches. The button tree further includes a button connected to the frame by the plurality of arms, wherein each branch of the plurality of branches contacts the button. In another embodiment, a button tree includes a frame, and a plurality of arms extending from the frame. The button tree further includes a button defining a central axis, the button connected to the frame by the plurality of arms, the button including a face surface and an edge surface. The button tree further includes a locating feature extending on the edge surface generally co-axially with the central axis.

A keyboard device includes a membrane circuit board and a key structure over the membrane circuit board. The key structure includes a keycap, a plunger structure, a key pedestal and an elastic element. The plunger structure is arranged between the keycap and the elastic element. At least a portion of the keycap is disposed within a pedestal dust-storage chamber of the key pedestal. At least a portion of the plunger structure is disposed within a guiding chamber of the key pedestal. Due to the relative location between the keycap, the plunger structure and the key pedestal, the path of the dust to enter the guiding chamber is extended or blocked. Consequently, the dust-proof efficacy is enhanced.

Disclosed is a waterproof key module, including: a housing with a hollow inner chamber and an opening at an end, comprising a front housing portion and a bottom housing portion secured to each other, and the opening being provided on the front housing portion; a touch component limited in the inner chamber, comprising a touch plate extending out from the opening; and a waterproof adhesive film in a pre-tensioned status and isolating the touch component from the bottom housing portion, an edge of the film being secured to a position where the front housing portion is connected to the bottom housing portion, and the touch component being supported on the film; wherein at least one pressure sensor module is provided between the touch component and the bottom housing portion and configured to generate a pressure signal that represents a pressure degree according to a pressing on the touch component.