Abstract: A key switch disposed on a base of a keyboard includes a key cap, a linkage bar, an edge plate and a recess portion. The key cap is disposed above the base. The linkage bar connects the key cap and the base. The edge plate is connected to the base. A slot is formed on the edge plate, and an end of the linkage bar is slidably latched in the slot. The recess portion is formed on the base and adjacent to the slot. A step is between a holding surface of the recess portion and a top surface of the base. The end of the linkage bar is caved in the recess portion and held on the holding surface of the recess portion when the end of the linkage bar is slidably latched in the slot.

Abstract: A keyswitch assembly includes a movable keycap having a space provided in a bottom of the keycap; a metal support plate having an opening, the metal including a cantilever bridge; a switch located under the opening of the metal support plate; a magnet disposed within the space of the keycap; wherein as the keycap is undepressed, the keycap is in an initial state and the keyswitch assembly is OFF, and the magnet draws in the cantilever bridge, and as the keycap is depressed downward, the magnet is forced to depart from the cantilever bridge and actuates the switch making the keyswitch assembly to turn ON. As the forced is released, the magnetic force between the cantilever bridge and the magnet forces the keycap to return its initial state.

Abstract: A key switch disposed on a base of a keyboard includes a key cap, a linkage bar, an edge plate and a recess portion. The key cap is disposed above the base. The linkage bar connects the key cap and the base. The edge plate is connected to the base. A slot is formed on the edge plate, and an end of the linkage bar is slidably latched in the slot. The recess portion is formed on the base and adjacent to the slot. A step is between a holding surface of the recess portion and a top surface of the base. The end of the linkage bar is caved in the recess portion and held on the holding surface of the recess portion when the end of the linkage bar is slidably latched in the slot.

Abstract: A membrane switch has two membranes. Each membrane includes a substrate section and a tail section extending from the substrate section. Each membrane has a circuit surface and a back surface opposite to each other. The two substrate sections overlap with the two circuit surfaces facing to each other. One of the two tail sections has a bypass portion at least partially avoiding the projection of the other tail section in the normal direction of the other circuit surface. The distal ends of the two tail sections overlap with the two back surfaces facing to each other.

Abstract: A keyswitch assembly includes a movable keycap having a space provided in a bottom of the keycap; a metal support plate having an opening, the metal including a cantilever bridge; a switch located under the opening of the metal support plate; a magnet disposed within the space of the keycap; wherein as the keycap is undepressed, the keycap is in an initial state and the keyswitch assembly is OFF, and the magnet draws in the cantilever bridge, and as the keycap is depressed downward, the magnet is forced to depart from the cantilever bridge and actuates the switch making the keyswitch assembly to turn ON. As the forced is released, the magnetic force between the cantilever bridge and the magnet forces the keycap to return its initial state.

Abstract: A light-emitting keyboard is disclosed, which comprises: a light guide plate, configured with a light entrance surface, a light emitting surface and a via hole; a light source, disposed next to the light entrance surface of the light guide plate; a frame, disposed on the light emitting surface of the light guide plate; an opaque material disposed on the via hole. With the aforesaid structure, light from the light source can be prevented from being emitting out from the via hole and thus can be evenly emitted out of the light guide plate.

Abstract: A keyboard includes a base, a plurality of keyswitches and a protective cover. The keyswitches are disposed on the base. Each of the keyswitches includes a key cap. The protective cover includes a plurality of hollow protruding portions and a plurality of surface structures. Each of the surface structures is formed on one of the hollow protruding portions. When the protective cover is disposed on the base, each of the hollow protruding portions covers one of the key caps correspondingly.

Abstract: A keyboard includes a base, a plurality of keyswitches, a transparent protective cover and a light emitting module. The keyswitches are disposed on the base and each keyswitch includes a transparent key cap. The transparent protective cover includes a plurality of hollow protruding portions. When the transparent protective cover is disposed on the base, each of the hollow protruding portions covers one of the transparent key caps. The light emitting module is selectively disposed on or below the base. The color of light emitted by the light emitting module is different from the color of the transparent protective cover.

Abstract: A keyswitch includes a key cap, a base, a circuit board, a film, a resilient member and a pressure sensing member. The circuit board is disposed on the base. The film is disposed on the circuit board. The resilient member is disposed between the film and the key cap. The pressure sensing member is disposed at a position selected from a group consisting of a position between the resilient member and the film, a position between the film and the circuit board, and a position between the circuit board and the base. When the key cap is pressed by an external force, the pressure sensing member senses a magnitude of the external force.

Abstract: The invention discloses a key structure including a keycap, a base plate, and a support member. The keycap includes a slide part; the base plate includes an engagement part; the support member includes a first end and a second end for engaging the keycap and the base plate. The first end slides on the slide part, and the second end is engaged to the engagement part. Therein, the second end thereon defines a first direction and a second direction perpendicular to the first direction. The first and second directions are substantially parallel to the base plate. The engagement part restrains the second end from sliding along the first direction. The second end includes two block parts. The block parts are deposited on two sides of the engagement part for restraining the second end from sliding along the second direction.

Abstract: A spray painting tool for painting key caps is disclosed, which comprises: a platform, having a plurality of columns formed on a top surface of the same; a panel, having a plurality of holes formed thereon at positions corresponding to the plural columns for allowing the plural columns to pass through the panel therefrom; a diaphragm, disposed on the panel while aligning a plurality of holes formed thereon with the plural columns for allowing the plural columns to pass through the diaphragm therefrom; and at least a holding unit, each being arranged on the panel at a position corresponding to one of the plural column for fixedly securing a key cap. As the diaphragm can be easily replaced, the spray painting tool can be used repetitively without worrying the stacking of residue paint on its panel. Moreover, as the spray painting tool is simple in structure and ease to use, painting key caps can be achieved with lower cost and less time.

Abstract: The invention discloses a key module which includes a touch device, several navigation keys, and a control device. Therein the touch device includes a touchable surface for being touched by an object. When the object touches the touch device, the touch device generates a touch signal according the state of the touch of the object. The several navigation keys are set around the touch device. The control device is electrically connected to the touch device and the navigation keys respectively for receiving the touch signal from the touch device and determining the location the touch device is touched, the times of the object touching the touch device, or how long the touching device is touched.

Abstract: A light-emitting keyboard is disclosed, which comprises: a light guide plate, configured with a light entrance surface, a light emitting surface and a via hole; a light source, disposed next to the light entrance surface of the light guide plate; a frame, disposed on the light emitting surface of the light guide plate; an opaque material disposed on the via hole. With the aforesaid structure, light from the light source can be prevented from being emitting out from the via hole and thus can be evenly emitted out of the light guide plate.

Abstract: A keyboard with a wobble prevention structure, which is substantially a substrate having at least one press key arranged thereon while enabling each press key to be driven to move in a reciprocating manner following a specific direction, and having a plurality of position limit devices disposed on the substrate and beneath the periphery of a corresponding press key. In a preferred aspect, each position device is integrally formed with the substrate, or can be formed on the substrate by stamp forming technique, that each is used to confine the corresponding press key to move following only the specific direction, such that the wobbling of the press keys is prevented.

Abstract: The invention discloses a keyswitch and a keyboard. The keyboard includes a base plate assembly and a plurality of keyswitches. The base plate assembly includes a first base plate and a second base plate. The second base plate is riveted to the first base plate. Each keyswitch includes a keyswitch module. Each keyswitch module is pivotally connected on the base plate assembly. The first base plate includes a hole. The circumference of the hole forms a protrusion structure. When the second base plate is riveted to the first base plate via the hole, the protrusion structure will be compressed and inserted in the second base plate tightly.

Abstract: The present invention provides an illuminated keyboard. The keyboard includes a base plate; a membrane switch above the base plate; at least one key member above the membrane switch; an electroluminescent sheet between the key member and the membrane switch; and at least one elastic member positioned on the electroluminescent sheet, the electroluminescent sheet supporting the elastic member, wherein when pressing the key member, the elastic member will be pushed to trigger the membrane switch.

Abstract: A keyboard and a light-emitting module therefore are provided. The light-emitting module includes a first light source, a first light guide element, a first reflecting element and a second light source. The first light guide element has a first cavity, and the first light source is disposed in the first cavity. The first reflecting element having at least one opening is disposed under the first light guide element. The second light source is disposed under the first reflecting element, and the light emitted from the second light source passes through the opening.

Abstract: The present invention provides a keyboard and a light-emitting module thereof. The light-emitting module includes a light guide element, a first light source and a second light source. The light guide element includes a first light guide region, a second light guide region, and a masking region located between the first light guide region and the second light guide region. The first light source emits a first color light to the first light guide region. The second light source emits a second color light to the second light guide region. The first light guide region and the second light guide region are separated by the masking region, so that the first color light and the second color light are not mixed.

Abstract: The invention discloses a key structure including a keycap, a base plate, and a support member. The keycap includes a slide part; the base plate includes an engagement part; the support member includes a first end and a second end for engaging the keycap and the base plate. The first end slides on the slide part, and the second end is engaged to the engagement part. Therein, the second end thereon defines a first direction and a second direction perpendicular to the first direction. The first and second directions are substantially parallel to the base plate. The engagement part restrains the second end from sliding along the first direction. The second end includes two block parts. The block parts are deposited on two sides of the engagement part for restraining the second end from sliding along the second direction.

Abstract: A key cap structure is disclosed, which comprises: a key cap, a connection structure, and a reinforcement element, wherein, the reinforcement element is arranged beneath the bottom of the key cap by the connection structure. Preferably, the key cap and the reinforcement element are separately formed so that the manufacturing of such key cap structure can be simplified while avoiding the disposition of the connection structure from causing the shrinking of key cap's surface during formation, and also as the reinforcement elements can be made of various alignments, thickness, height, materials according to the specification of the key cap structure or actual requirements, the key cap structure can be sufficiently strengthened.