A backlight module includes a cover plate, a light guide plate, a circuit board, a reflective layer, and a light source. The light guide plate is disposed under the cover plate and has a first hole corresponding to a light-shielding region of the cover plate. The circuit board is disposed under the light guide plate and includes a first substrate and a conductive layer having a through hole. The reflective layer is disposed between the light guide plate and the circuit board and has a second hole. The first substrate is in contact with the reflective layer. The conductive layer is disposed between the first substrate and the reflective layer having a recess recessed into the through hole. The light source is disposed on the circuit board, accommodated in the first hole and the second hole corresponding thereto, and in contact with the conductive layer.

Multilayer switchdome systems and methods are presented that may enable improved tactile and strength properties and enhanced action. Embodiments may utilize a first layer of spring material (1) and at least a second layer of spring material (2) to form a switchdome component (4). In certain embodiments, the spring material layers may be conjoined by utilizing a switchdome bond (3) to create an integrated bonded composite spring sheet material (7). Various forming processes (8) may be employed in performing the varying embodiments of a method of switchdome component (4) forming. The varying forming processes (8) may improve the physical properties of the tactile switchdome component (4). The varying processes, spring materials, and switchdome bond types may be optimized for a particular application.

Low-profile keysets and input devices having such low-profile keysets are described. In one example, the input device includes a support structure having a first and second surface; a bezel having a first and second surface, wherein the first surface of the bezel is adjacent to the first surface of the support structure, and the bezel comprises at least one opening; at least one key cap positioned within the at least one opening of the bezel, wherein each key cap is configured to move between a first and second position to trigger a function of the input device; and a fabric cover layer positioned adjacent to the second surface of the bezel, such that the bezel and the at least one key cap are positioned between the fabric cover layer and the support structure, the fabric cover layer is only adhered to the second surface of the bezel.

A method for manufacturing a membrane switch member that can be manufactured easily and that can be caused to function as an electrostatic sensor even when a protruding portion is pressed. Injection molding by injecting a material including a supercritical fluid gas and a resin material in a mixed state; and, after the injection molding, removing a first mold from a second mold, causing gas produced within the injection molded resin to grow in concave portions, thereby causing the concave portions to invert to a protruding state; and manufacturing a membrane switch member in which voids are formed between the protruding portions and a molding resin layer, and portions other than the portions corresponding to the protruding portions are adhered to the resin layer by an adhesion layer.

A base element and at least one switching element are included in an operator control device which may be disposed in a vehicle. By closing at least one electrical contact, the switching element is moveable from a first position into a second position relative to the base element. The operator control device can also include at least one pushbutton switch moveable relative to the base element between a position of rest and at least one activation position. The operator control device can further include at least one restoring element, formed of silicone and supported on the base element and on the pushbutton switch, which can be elastically deformed by moving the pushbutton switch from the position of rest into the activation position. Using the restoring element, the pushbutton switch can be moved from the activation position into the position of rest by relaxing the restoring element.

An electromagnetic relay (100) has high wear resistance, high corrosion resistance, and good magnetic properties. The electromagnetic relay (100) includes a magnetic component including an alloy layer on its surface formed by diffusion-coating of at least one element selected from the group consisting of Cr, V, Ti, and Al. The alloy layer has a thickness of 5 to 60 μm, inclusive.

A functional component having a button function includes a support component, a film, and an electrical switching element. The support component has a recess. The film covers the recess. The electrical switching element is situated below the recess and is actuatable by pressure being exerted on the film in the area above the recess. A ring-shaped or hollow cylindrical body is situated along an inner edge surface of the recess and is in contact with the film.

An irreversible power switch which is operational from the outside after lamination of laminated communication device and the like, includes a substrate, electrodes disposed on the substrate, a brittle member disposed so as to face the electrodes and apart from the electrodes and a conductive adhesive portion disposed on the brittle member at a side to face the electrodes thereof. The electrodes and the conductive adhesive portion are irreversibly and electrically bonded by brittle fracture of the brittle member under the external pressing force in the thickness direction of the laminated communication device.

A functional component having a button function includes a support component, a film, and an electrical switching element. The support component has a recess. The film covers the recess. The electrical switching element is situated below the recess and is actuatable by pressure being exerted on the film in the area above the recess. A ring-shaped or hollow cylindrical body is situated along an inner edge surface of the recess and is in contact with the film.

An input device includes an operation unit to receive an operation, at least one load detection unit to detect a load on the operation unit and detect the load according to capacitance between a pair of conductors, and a substrate on which an electrode as one of the pair of conductors of the load detection unit is arranged. The load detection unit includes the electrode, an operation deformation portion to deform in response to an operation on the operation unit, and a detection electrode as the other of the pair of conductors. The electrode, the operation deformation portion and the detection electrode are located between the substrate and the operation unit and arranged in this order from the substrate.