Disclosed is a switch device including a push operation part having a light transmitting portion, a control board installed in a push operation direction of the push operation part, a fingerprint sensor provided on the push operation part to detect a fingerprint of a user pushing the push operation part, a controller provided on one surface of the control board to control the fingerprint sensor, a flexible board provided to electrically connect the fingerprint sensor and the controller, and a plurality of light sources installed on opposite surfaces of the control board and closer to the push operation part than the controller to illuminate the light transmitting portion.

A seat belt attachment/detachment detection switch comprises: a printed circuit board including a circuit for detecting attachment/detachment of a seat belt; a movable plate configured to slidably move along with insertion of a tongue plate of the seat belt; a rotor including a lever coupled to the movable plate, the rotor being rotatably attached to the printed circuit board to rotate as the tongue plate is pushed into a buckle; and an electric brush attached to the surface of the rotor that faces the printed circuit board, the electric brush having leg parts that change a state of contact/non-contact with a conductive part of the circuit in accordance with a rotating state of the rotor.

An electrical switch (120) includes an insulative housing (121), the operation part (150) disposed in the housing (121), and the metallic cover (160) enclosing the housing (121). The metallic cover (160) includes a front plate (161), a pair of side plates (164) extending rearwardly from two opposite lateral sides of the front plate (161). The side plate (164) include a main body (165) to cover the corresponding side wall (125) of the housing and an extension (167) extending beyond a rear face of the housing (121) and adapted to be soldered upon a printed circuit board (110) on which the housing (121) is seated.

A seat belt attachment/detachment detection switch including a printed circuit board including a circuit for detecting attachment/detachment of a seat belt; a movable plate configured to slidably move along with insertion of a tongue plate of the seat belt; a rotor including a lever coupled to the movable plate, the rotor being rotatably attached to the printed circuit board to rotate as the tongue plate is pushed into a buckle; and an electric brush attached to the surface of the rotor that faces the printed circuit board, the electric brush having leg parts that change a state of contact/non-contact with a conductive part of the circuit in accordance with a rotating state of the rotor.

A switch includes: a first electrode sheet including a first electrode; a second electrode sheet including a second electrode that faces the first electrode sheet; and an adhesive that includes a first opening through which the first electrode faces the second electrode sheet and that attaches the first electrode sheet to the second electrode sheet. The first electrode sheet includes: a first substrate on which the first electrode is disposed; a first spacer between the first substrate and the second electrode sheet that includes a second opening at a position corresponding to the first electrode; and a first base between the first substrate and the first spacer that overlaps at least a portion of an edge of the first opening of the adhesive. The first spacer is attached to the second electrode sheet by the adhesive.

A switch includes: a first electrode sheet including a first electrode; a second electrode sheet including a second electrode that faces the first electrode sheet; and an adhesive that includes a first opening through which the first electrode faces the second electrode sheet and that attaches the first electrode sheet to the second electrode sheet. The first electrode sheet includes: a first substrate on which the first electrode is disposed; a first spacer between the first substrate and the second electrode sheet that includes a second opening at a position corresponding to the first electrode; and a first base between the first substrate and the first spacer that overlaps at least a portion of an edge of the first opening of the adhesive. The first spacer is attached to the second electrode sheet by the adhesive.

A membrane switch device includes first and second membrane layers, a spacing layer between the membrane layers, and a flexible printed circuit board. The first membrane layer includes a first surface and first conductive wires on the first surface and extending to a first wire area to form first contact pads. The second membrane layer includes a second surface and second conductive wires on the second surface and extending to a second wire area to form second contact pads. A wire-connecting end of the flexible printed circuit board is between the first membrane layer and the second membrane layer. A first protection layer of the flexible printed circuit board and the first contact pads are not overlapped with each other, and a second protection layer of the flexible printed circuit board and the second contact pads are not overlapped with each other.

A membrane switch device includes first and second membrane layers, a spacing layer between the membrane layers, and a flexible printed circuit board. The first membrane layer includes a first surface and first conductive wires on the first surface and extending to a first wire area to form first contact pads. The second membrane layer includes a second surface and second conductive wires on the second surface and extending to a second wire area to form second contact pads. A wire-connecting end of the flexible printed circuit board is between the first membrane layer and the second membrane layer. A first protection layer of the flexible printed circuit board and the first contact pads are not overlapped with each other, and a second protection layer of the flexible printed circuit board and the second contact pads are not overlapped with each other.

A novel conducting structure and conducting method for an upper sheet and a lower sheet of a film button circuit. A first upper sheet conducting layer and a second upper sheet conducting layer are coated in sequence on an upper sheet conducting contact point. A first lower sheet conducting layer and a second lower sheet conducting layer are coated in sequence on a lower sheet conducting contact point. The first upper sheet conducting layer, the second upper sheet conducting layer, the second lower sheet conducting layer and the first lower sheet conducting layer are overlapped in sequence, thereby forming a composite conducting layer that is slightly greater than a back glue layer in thickness. The present invention can simplify assembly processes and can improve the production efficiency.

A control board drivers with polycarbonate membrane that includes drivers with an adhesive polycarbonate membrane and electronic circuits, with an opening for passing a connection FLET between the membrane and a SLAVE module, and a five-way cable projecting from the SLAVE module. The five-way cable has two data communication wires, two feeding wires and one spare wire that connects the SLAVE module and a MASTER module. The adhesive membrane, along with the SLAVE module and the MASTER module, allow for the replacement of all components (drivers) in an electric control board.