A control device for controlling power delivered to an electrical load includes a faceplate subassembly and a main control module. The faceplate subassembly includes a faceplate, a button, a circuit board, and a back cover. The faceplate includes a front surface and an opposed rear surface, and an opening extending therebetween with the button disposed in the opening in the faceplate. The back cover is positioned adjacent to the circuit board and defines a plurality of holes. A shaft of a post extending from the faceplate is disposed in one of the holes in the back cover and an end of the post is enlarged such that the back cover is captured between the end of the post and the rear surface of the faceplate. The main control module is configured to cause power delivered to the electrical load to be adjusted in response to depression of the button.

A key stabilizer is provided, in which the key stabilizer includes a keycap and a balance bar. The keycap has a bottom surface and two protruding portions disposed thereon. The keycap moves back and forth along a vertical direction between a top position and a bottom position. Each of the two protruding portions has an engaging portion at the end thereof. The bottom surface faces the bottom position, and the two protruding portions are arranged along a horizontal direction that is perpendicular to the vertical direction. The balance bar has a hinge portion and two side portions respectively connected to both ends of the hinge portion. The hinge portion is positioned on a rotation axis parallel to the horizontal direction. The end of each of the two side portions that is away from the hinge portion is inserted into the engaging portion.

System and methods for providing a keyframe module for a input device are disclosed. In an embodiment, the input device includes a keyframe having a key opening, and a key disposed within the key opening. The key includes a keycap having a bottom surface, a plurality of tabs that extend laterally from the bottom surface of the keycap, and a protrusion extending from the bottom surface of the keycap. A compressible dome structure is disposed underneath the protrusion, and a plate is coupled to the keyframe and disposed underneath the compressible dome structure. A plurality of openings is disposed within the plate, where a location of the plurality of openings corresponds to a location of the plurality of tabs such that one or more of the plurality of tabs pass through one or more of the plurality of openings in response to the depression of the key.

A thin keyboard device is described herein. In one or more implementations, a keyboard device includes a plurality of keys, and a housing that includes a structural printed circuit board (PCB). The structural PCB includes, for each of the plurality of keys, a first conductive trace and a second conductive trace. The keyboard device further includes a key-switch mechanism for each of the plurality of keys. The key-switch mechanism includes a conductive material oriented towards the first conductive trace and the second conductive trace, and is configured to cause the conductive material to move downwards, when the key is depressed, to electrically connect the first conductive trace and the second conductive trace of the depressed key.

An illuminated film-covered keyboard includes: a backlit keyboard module which includes a plurality of keys that are light-permeable, and at least one backlight source; a frame body disposed on the backlit keyboard module, the frame body including a key area, wherein the top surface of each of the plurality of keys is exposed at the key area; and a cover film disposed at the key area and on top of the top surface of each of the plurality of keys, wherein the cover film includes a light-permeable film, a base color layer, a light-shielding layer that is opaque, and a protection layer disposed on a side of the light-shielding layer opposing the base color layer, and wherein the portions of the light-shielding layer that respectively correspond to each of the plurality of keys are removed so as to form a plurality of light-transparent patterns.

System and methods for providing a keyframe module for a input device are disclosed. In an embodiment, the input device includes a keyframe having a key opening, and a key disposed within the key opening. The key includes a keycap having a bottom surface, a plurality of tabs that extend laterally from the bottom surface of the keycap, and a protrusion extending from the bottom surface of the keycap. A compressible dome structure is disposed underneath the protrusion, and a plate is coupled to the keyframe and disposed underneath the compressible dome structure. A plurality of openings is disposed within the plate, where a location of the plurality of openings corresponds to a location of the plurality of tabs such that one or more of the plurality of tabs pass through one or more of the plurality of openings in response to the depression of the key.

A key structure includes a key, a key sheet and a supporting portion. The key displaces in a direction. The key sheet is disposed at a side of the key toward which the key displaces and comprises a sheet base portion and a contacting portion that displaces in the displacing direction of the key in accordance with a displacement of the key. The supporting portion is disposed between the key and the sheet base portion and supports one end portion of the key by contacting a member disposed opposite to the supporting portion while the other end portion of the key displaces in the displacing direction of the key.

Disclosed is a mobile terminal including a terminal body; a first module detachable from a back surface of the terminal body; and a printed circuit board, wherein the back surface of the terminal body includes a first recess to receive the first module, and wherein the first module includes a contact terminal configured to contact the printed circuit board through a connector having one or more electrode regions such that the first module is electrically connected to the printed circuit board when the first module is received in the first recess.

The present invention relates to a linkage structure of a key switch. A second key and a fourth key share one bridge and are connected by a first connecting rod. When the second key or the fourth key is pressed down, the first connecting rod is pushed, so that a first bridge metal dome deforms and is connected to a common contact piece for conduction. A third key and a fifth key share one bridge and are connected by a second connecting. When the third key or the fifth key is pressed down, the second connecting rod is pushed, so that a second bridge metal dome deforms and is connected to the common contact piece for conduction. An input terminal is connected in series to a fuse, and the second key and the fourth key are connected in series to a diode so as to output a rectification half-wave.

Presently provided is a keyboard, key stabilizer mechanism, and method. At least one of the keys on the keyboard has a stabilizer mechanism with spaced apart bases. A stem is supported on each of the bases with perpendicularly disposed hinges. A wire is disposed to cooperate with a hinge supporting each of the stems.