An illuminated glass keycap having a glyph diffuser layer that may diffuse light through a glyph window opened in a background layer. The background layer may be opaque and the glyph window may be transparent. The keycap is adhered to a scissor mechanism positioned above electrical switch circuitry. Included within, below, or adjacent to the scissor mechanism may be one or more light sources positioned to emit light through the keycap, around the perimeter of the keycap, and/or through the background layer.

In some examples, a computing device may include a first housing and a second housing. The first housing may include a first set of components, such as a display device. The second housing may include a second set of components, such as a keyboard having a plurality of keys. An individual key of the plurality of keys may include a keycap, an organic light emitting diode (OLED) film (or sheet), a key mechanism, and a base. When power is provided to contacts on the base of the individual key, the power may travel across conductive traces (or wires) in the key mechanism to pads on the OLED film, causing the OLED film to emit light. The light from the OLED film may illuminate a character or symbol embedded into the keycap or the OLED film may be shaped into the character or the symbol and embedded into the keycap.

A control device includes a button assembly having one or more buttons and a button carrier that includes a plurality of resilient, independently deflectable spring arms. The control device may be configured as a wall-mounted keypad to control a load control device, or as a thermostat to control a temperature regulation appliance. The button carrier may be configured to prevent interference between the buttons during operation of the control device. The button assembly may be captured between a faceplate of the control device and a housing that is attached to a rear side of the faceplate. The control device may include one or more button retainers that are attached to the buttons and that are configured to align respective outer surfaces of the buttons relative to each other, and relative to the faceplate of the control device, when the buttons are in respective rest positions.

A keyboard structure, including: a keycap; a transparent membrane layer; and an elastic element, disposed between the keycap and the transparent membrane layer and having a press portion, where the transparent membrane layer includes: a first opening corresponding to the keycap; a hard membrane layer, having an extension portion that is formed at an inner edge of the first opening inner edge; and a spacer layer, disposed under the hard membrane layer and used for forming a gap. When the keycap is pressed with an external force, the elastic element is deformed to enable the press portion to move downward and abut against the extension portion, so that the extension portion generates a bending deformation in the gap; and when the external force is released, the elastic element and the extension portion are elastically recovered and the extension portion generates a sound.

A keyboard device includes a base plate, a connecting element and a keycap. The connecting element is connected with a hook of the keycap and the base plate. The keycap includes an elastic structure, a first hooking part and a second hooking part. The elastic structure hook is installed on an inner surface of the keycap. The first hooking part is arranged beside a first side of the elastic structure. The second hooking part is arranged beside a second side of the elastic structure. While the connecting element is assembled with the keycap, the first hooking part and the second hooking part are pushed by the connecting element and the keycap is bent in response to the elasticity of the elastic structure. Consequently, the first hooking part is moved away from the second hooking part.

A key and a switch housing for a keyboard assembly is disclosed. A switch housing for the keyboard assembly may include a body having a switch opening and a light source recess formed adjacent the switch opening. The switch opening may house or receive a dome switch for the keyboard assembly and the light source recess may house or receive a light source assembly configured to illuminate a keycap of the keyboard assembly. The switch housing also can include a top panel integrally formed and molded to a portion of the body. The top panel covers the switch opening formed in the body and the top panel is a light guide.

A keyswitch device includes a base plate, a membrane circuit board, a light source, and a keyswitch assembly. The membrane circuit board is disposed on the base plate and includes a reflective film layer, a transmissive film layer, and a light guide spacer. The reflective film layer is located on the base plate. The transmissive film layer is located over the reflective film layer. The light guide spacer has an accommodating space. The reflective film layer and the transmissive film layer are respectively located at opposite sides of the light guide spacer. The light source is disposed between the reflective film layer and the transmissive film layer and located in the accommodating space. The keyswitch assembly is disposed on the membrane circuit board.

Methods for assembling low-profile, singulated keyboards by prefabricating key assemblies onto a chassis strip that is divided into individual key assemblies only after the substrate is affixed to a feature plate of keyboard. For example, a row of key assemblies is fabricated onto a chassis strip. The row corresponds to a partial or complete row of keys of the keyboard. The chassis strip is thereafter affixed to a feature plate in a specific location, thereby aligning each prefabricated key assembly to a precise location on the feature plate. While connected, each prefabricated key assembly is independently affixed to the feature plate. Thereafter, interconnecting portions of the chassis strip between the prefabricated key assemblies are removed, thereby singulating each key assembly.

A locking arrangement for a plurality of toggle switches is provided, which facilitates independent locking and independent actuation of the toggle switches. The locking arrangement restricts the movement of a lever associated with a toggle switch of the plurality of toggle switches so as to maintain the lever of the toggle switch in at least one predetermined position. The locking arrangement is adapted to receive a locking device that restricts the movement of the lever in at least one predetermined position defined by the periphery of a locking plate or a base plate of the locking arrangement.

A keyboard switch for a keyboard includes a base secured to a plunger that reciprocates with respect to the base and is biased away from the base. An electrical contact assembly is positioned within a cavity defined by the base and the plunger. The electrical contact assembly remains in an electrically open state when the plunger is furthest from the base, but the electrical contact assembly enters an electrically closed state when the plunger is longitudinally moved downwardly by force towards the base. In this regard, a cam protruding from a side portion of a body of the plunger has a profile surface that contacts the electrical contact assembly as the plunger is longitudinally moved towards the base. A curved profile of the cam that incorporates a concave arc uniquely changes the amount of force experienced by the typist at different points of the downward motion of the plunger.