A keyboard including a base plate, a plurality of keycaps, a plurality of supporting structures and a membrane switch element is provided. The base plate has a through hole. The keycaps are disposed on the base plate. The supporting structures are respectively disposed between the keycaps and the base plate. The membrane switch element is disposed on the base plate. The vertical projection of two adjacent keycaps of the keycaps relative to the base plate overlaps the through hole, and the membrane switch element has a shielding portion covering the through hole.

A keyboard including a base plate, a plurality of keycaps, a plurality of supporting structures and a membrane switch element is provided. The base plate has a through hole. The keycaps are disposed on the base plate. The supporting structures are respectively disposed between the keycaps and the base plate. The membrane switch element is disposed on the base plate. The vertical projection of two adjacent keycaps of the keycaps relative to the base plate overlaps the through hole, and the membrane switch element has a shielding portion covering the through hole.

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 portable electronic device may include a housing member defining a side surface of the portable electronic device, a portion of the housing member defining a side wall of a hole extending through the housing member, a button member positioned along the side surface and defining a chassis portion and a hollow post extending into the hole defined through the housing member, and a first waterproof seal defined between the hollow post and the side wall of the hole. The portable electronic device may also include a biometric sensing component coupled to the chassis portion, a flexible circuit element extending through the hollow post and conductively coupling the biometric sensing component to a component within the housing, and a second waterproof seal defined within the hollow post.

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 keyboard device includes a substrate, a membrane circuit board, a flexible printed circuit board, a first fixing board, and a second fixing board. The substrate includes a top surface, a bottom surface, and a side edge. The substrate further includes an offset protrusion protruding from the top surface and forms a recessed area on the bottom surface. The membrane circuit board is disposed on the top surface. The membrane circuit board includes an outlet area correspondingly disposed on the offset protrusion. The flexible printed circuit board is disposed on the bottom surface. The flexible printed circuit board includes a fixed portion, a folded portion, and an electrical connection end. The fixed portion is received in the recessed area. The first fixing board is correspondingly disposed on the offset protrusion. The second fixing board is correspondingly received in the recessed area and assembled with the first fixing board.

A keyboard device includes a substrate, a membrane circuit board, a flexible printed circuit board, a first fixing board, and a second fixing board. The substrate includes a top surface, a bottom surface, and a side edge. The substrate further includes an offset protrusion protruding from the top surface and forms a recessed area on the bottom surface. The membrane circuit board is disposed on the top surface. The membrane circuit board includes an outlet area correspondingly disposed on the offset protrusion. The flexible printed circuit board is disposed on the bottom surface. The flexible printed circuit board includes a fixed portion, a folded portion, and an electrical connection end. The fixed portion is received in the recessed area. The first fixing board is correspondingly disposed on the offset protrusion. The second fixing board is correspondingly received in the recessed area and assembled with the first fixing board.

Apparatuses and systems that include a keyboard baseplate including a concave structure with a logic substrate housed therein are disclosed. One apparatus includes a keyboard baseplate including a concave structure formed thereon and a lower surface having a side. The apparatus further includes a logic substrate provided on the side of the lower surface of the baseplate and housed within the concave structure. The logic substrate is configured to receive an analog signal generated by a sensor and convert the analog signal to a digital signal.

Apparatuses and systems that include a keyboard baseplate including a concave structure with a logic substrate housed therein are disclosed. One apparatus includes a keyboard baseplate including a concave structure formed thereon and a lower surface having a side. The apparatus further includes a logic substrate provided on the side of the lower surface of the baseplate and housed within the concave structure. The logic substrate is configured to receive an analog signal generated by a sensor and convert the analog signal to a digital signal.