A keyboard device includes a bottom cover, a supporting plate, a flexible circuit board and plural key structures. The supporting plate is installed on the bottom cover. The supporting plate has a curved arc-shaped profile that is bent upwardly in a direction away from the bottom cover. The supporting plate includes plural perforations. The flexible circuit board is arranged between the bottom cover and the supporting plate. The plural key structures are installed on the supporting plate. The plural key structures are penetrated through the corresponding perforations and contacted with the flexible circuit board.

A keyboard device includes a bottom cover, a supporting plate, a flexible circuit board and plural key structures. The supporting plate is installed on the bottom cover. The supporting plate has a curved arc-shaped profile that is bent upwardly in a direction away from the bottom cover. The supporting plate includes plural perforations. The flexible circuit board is arranged between the bottom cover and the supporting plate. The plural key structures are installed on the supporting plate. The plural key structures are penetrated through the corresponding perforations and contacted with the flexible circuit board.

A button structure and a terminal using the same are provided. The button structure includes a connecting element, a press element, and at least one elastic element connected to the connecting element and the press element. The elastic element is configured to provide a restoring force after the press element is pressed toward the connecting element. The connecting element is provided with an instruction transmission port and at least one of a current transmission port and a data transmission port. The press element is provided with an instruction triggering port and at least one of a current transmission pin and a data transmission pin. The current transmission pin is electrically connected to the current transmission port to output or input current. The data transmission pin is electrically connected to the data transmission port to output or input data.

A switch unit includes: a tactile switch; a cable which transmits an operation signal generated when the tactile switch is operated; a formed part where a fitting engagement portion which is disposed on an operation section exterior member at a predetermined position, a recessed surface which is formed on a side of a first end portion with respect to the fitting engagement portion and where the tactile switch is mounted, a cable fixing portion which is disposed on a side of a second end portion which is a side opposite to the first end portion with the fitting engagement portion positioned between the first end portion and the second end portion and to which the cable is connected, and a circuit which electrically connects the recessed surface and the cable fixing portion to each other and transmits an operation signal generated by the tactile switch to the cable are formed.

A keyboard includes a backlight module, a base plate, a membrane circuit disposed on the base plate, and a plurality of key structures disposed on the membrane circuit. The backlight module includes a light source, a reflective layer, a light guide layer, and a shielding layer. The light source is disposed corresponding to the light guide layer. The light guide layer is located between the shielding layer and the reflective layer. The light guide layer has a through-hole. The shielding layer and the reflective layer are in contact with each other in the through-hole of the light guide layer. The base plate is disposed on the shielding layer. The base plate has a positioning portion disposed corresponding to the through-hole of the light guide layer, which protrudes toward the reflective layer or the membrane circuit.

A keyboard includes a backlight module, a base plate, a membrane circuit disposed on the base plate, and a plurality of key structures disposed on the membrane circuit. The backlight module includes a light source, a reflective layer, a light guide layer, and a shielding layer. The light source is disposed corresponding to the light guide layer. The light guide layer is located between the shielding layer and the reflective layer. The light guide layer has a through-hole. The shielding layer and the reflective layer are in contact with each other in the through-hole of the light guide layer. The base plate is disposed on the shielding layer. The base plate has a positioning portion disposed corresponding to the through-hole of the light guide layer, which protrudes toward the reflective layer or the membrane circuit.

A keyboard with wire aging self-adaption, a self-adaption method for keyboard, an electronic computing device readable medium with a stored program, and an electronic computing device program product are provided. In the keyboard, a processor feeds a scanning signal to each scanning line in turn during a scanning round. In response to the conduction state of one of switching elements, the processor detects a return signal on the corresponding return line and selects one or more scanning lines as a testing line. During a first duration in which the testing line maintains the scanning signal, according to the time difference between the starting points of the first duration and the return signal and the response time parameter corresponding to the testing line that is stored in the memory, the processor determines whether to update the response time parameter corresponding to the testing line that is stored in the memory.

Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for using electrical button matrix scanning techniques to detect remote control buttons pressed by users. An example embodiment operates by detecting, using an electrical matrix scanning technique, an actuated electrical switch corresponding to a remote control action for a media device. The actuated electrical switch includes a first actuated electrode coupled to a first actuated electrical line of an electrical matrix, a second actuated electrode coupled to a second actuated electrical line of the electrical matrix, and a third actuated electrode coupled to a third actuated electrical line of the electrical matrix. In response to detecting the actuated electrical switch, the example embodiment operates by triggering an execution of the remote control action corresponding to the actuated electrical switch.

Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for using electrical button matrix scanning techniques to detect remote control buttons pressed by users. An example embodiment operates by detecting, using an electrical matrix scanning technique, an actuated electrical switch corresponding to a remote control action for a media device. The actuated electrical switch includes a first actuated electrode coupled to a first actuated electrical line of an electrical matrix, a second actuated electrode coupled to a second actuated electrical line of the electrical matrix, and a third actuated electrode coupled to a third actuated electrical line of the electrical matrix. In response to detecting the actuated electrical switch, the example embodiment operates by triggering an execution of the remote control action corresponding to the actuated electrical switch.

A key structure which is adjustable in pressing force required and in duration of key pushback includes a circuit board, a keycap, a first magnetic member, an elastic member, a membrane switch, and a second magnetic member. The keycap includes an extending portion. The membrane switch is spaced apart from the first magnetic member, and the elastic member buffers the first magnetic member against the membrane switch. The second magnetic member is disposed between the membrane switch and the circuit board. When energized, the second magnetic member generates magnetic attraction or magnetic repulsion to the first magnetic member. A pressing force required on the key structure and a rebound force and a delay of rebound can be dynamically adjusted by a direction and magnitude of a current applied to the second magnetic member. A key device including the key structure is also disclosed.