A backlight module including a light guide plate, a circuit board, an electronic component, a reflective sheet, a light-shielding sheet, and a light-emitting component is provided. The light guide plate includes an escape opening and a light-source opening. The circuit board is disposed under the light guide plate. The electronic component is electrically connected to the circuit board, and at least a part of the electronic component is located in the escape opening. The reflective sheet is disposed on a rear surface of the light guide plate and between the light guide plate and the circuit board. The light-shielding sheet is disposed on a light emitting surface of the light guide plate opposite to the rear surface. The light-emitting component is disposed in the light-source opening. A luminous keyboard using this backlight module is also provided.

A key structure includes a keycap, a scissors-type connecting element, a first knocking part, a resilience element and a second knocking part. The scissors-type connecting element is coupled to a bottom surface of the keycap. The scissors-type connecting element includes an inner frame and an outer frame. The first knocking part is disposed within a space surrounded by the inner frame. The resilience element is located under the first knocking part. The second knocking part is coupled to the bottom surface of the keycap and faces the first knocking part. While the keycap is pressed down, the second knocking part knocks on the first knocking part, and the first knocking part is moved downwardly. When the keycap is not pressed down, the first knocking part is moved upwardly and returned to an original position in response to an elastic force of the resilience element.

A key structure includes a keycap, a base plate and a connecting element. The keycap includes a sliding groove located at a bottom side the keycap. A top surface of the sliding groove faces a portion of the bottom surface of the keycap. Moreover, at least one of the top surface of the sliding groove and the portion of the bottom surface of the keycap is a slant surface. The base plate is located under the keycap. The connecting element is connected between the keycap and the base plate.

An operation panel provided on a vehicle is provided with: a panel member exposed to an interior of a vehicle cabin of the vehicle; an operation part provided on the panel member; and a load sensor provided so as to face a back surface of the panel member, the a load sensor being configured to detect that the operation part has been operated based on a load caused by a displacement of the panel member, wherein the load sensor is provided at a position where the displacement of the panel member is greater than a displaced amount of the operation part when the operation part is operated, the panel member has a projected portion projecting out from the back surface such that a tip end portion faces the load sensor, and the projected portion is formed of divided projected portions, the divided projected portions being provided by being divided into a plurality of parts.

A magnetic type keyswitch includes an actuating member and a switch unit. The actuating member is movable in response to a pressing force. The switch unit includes a circuit board, a Hall sensor electrically connected to the circuit board, and a magnet spaced apart from the Hall sensor by a fixed distance. When the pressing force is not applied, the magnet enables the Hall sensor to output a first voltage, and when the pressing force is applied, the actuating member moves relative to the magnet and the Hall sensor in response to the pressing force, so that the Hall sensor outputs a second voltage different from the first voltage, and the magnetic type keyswitch generates a triggering signal.

A remote control device may control electrical loads and/or load control devices of a load control system without accessing electrical wiring. The remote control device may be configured to be mounted over an installed mechanical switch having a paddle actuator and may include a base and a control unit that is configured to be removably attached to the base. The base may include a frame, a clamp arm, a screw, and/or a sleeve. The clamp arm may be configured to secure the base to a protruding portion of the paddle actuator. The clamp arm may be attached to the frame at a pivot joint. The clamp arm may be configured to pivot about the pivot joint. The pivot joint may be located proximate to an endpoint or a midpoint of the frame.

A remote control device may control electrical loads and/or load control devices of a load control system without accessing electrical wiring. The remote control device may be configured to be mounted over an installed mechanical switch having a paddle actuator and may include a base and a control unit that is configured to be removably attached to the base. The base may include a frame, a clamp arm, a screw, and/or a sleeve. The clamp arm may be configured to secure the base to a protruding portion of the paddle actuator. The clamp arm may be attached to the frame at a pivot joint. The clamp arm may be configured to pivot about the pivot joint. The pivot joint may be located proximate to an endpoint or a midpoint of the frame.

A button structure (708) comprises a base (709) comprising a slot (203) and a sensing element (710) inserted into the slot. A pressure concentration element (711) is fixedly connected to the sensing element and a key cap (712) is mounted to the base. The key cap comprises a core member (503) fixedly connected to a lower surface of a top plate (504) of the key cap. The core member comprises a lower surface (506) configured to be brought into contact with the pressure concentration element on application of a pressure to an upper surface of the top plate, such that the applied pressure is transmitted to the sensing element through the core member and the pressure concentration part.

The disclosure provides a key structure, including a bottom plate, a switch element, a keycap, a positioning element, and a linkage rod. The switch element is disposed on the bottom plate. The keycap is disposed on the switch element, and the switch element is located between the bottom plate and the keycap. The positioning element is connected to the bottom plate and located between the bottom plate and the keycap. The linkage rod is disposed between the keycap and the positioning element. The linkage rod has a portion disposed at a position corresponding to a groove, and two opposite sides of the linkage rod are each in contact with the keycap and the positioning element.

A key structure, including a base plate, a thin film circuit, a dome switch, a scissor structure, an elastic piece, and a keycap, is provided. The thin film circuit is disposed on the base plate. The dome switch is disposed on the thin film circuit. The scissor structure is disposed on the base plate, wherein the scissor structure includes a first support and a second support pivotally connected to the first support, and the second support surrounds the first support. The first support has a trigger part, and the second support has a chamber disposed corresponding to the trigger part. The elastic piece is engaged inside the chamber, wherein the elastic piece has an interfering part located outside the chamber, and the interfering part is located on a moving path of the trigger part. The keycap is disposed on the scissor structure and the dome switch.