The disclosure provides a keyboard including a bottom plate, a key unit and a shielding layer. The bottom plate includes a through hole. The key unit is disposed on the bottom plate. The shielding layer covering a portion of the bottom plate includes a main part and an extension part extending from the main part toward the through hole. The shielding layer is provided with a black surface, and an orthographic projection of the key unit on the shielding layer overlaps the black surface.

The disclosure provides a keyboard including a bottom plate, a key unit and a shielding layer. The bottom plate includes a through hole. The key unit is disposed on the bottom plate. The shielding layer covering a portion of the bottom plate includes a main part and an extension part extending from the main part toward the through hole. The shielding layer is provided with a black surface, and an orthographic projection of the key unit on the shielding layer overlaps the black surface.

A keyswitch device includes a bottom plate, a membrane circuit board, a keyswitch assembly, and at least one spacer structure. The membrane circuit board is located over the bottom plate and has a trigger zone. The membrane circuit board is configured to generate a trigger signal when the trigger zone is pressed. The keyswitch assembly is disposed over the membrane circuit board and configured to press the trigger zone. The spacer structure is disposed between the bottom plate and the membrane circuit board and substantially aligned with the peripheral edge of the trigger zone. The spacer structure is configured to separate the bottom plate and the membrane circuit board by a distance.

A keyswitch device includes a bottom plate, a membrane circuit board, a keyswitch assembly, and at least one spacer structure. The membrane circuit board is located over the bottom plate and has a trigger zone. The membrane circuit board is configured to generate a trigger signal when the trigger zone is pressed. The keyswitch assembly is disposed over the membrane circuit board and configured to press the trigger zone. The spacer structure is disposed between the bottom plate and the membrane circuit board and substantially aligned with the peripheral edge of the trigger zone. The spacer structure is configured to separate the bottom plate and the membrane circuit board by a distance.

A key device includes a bottom plate, a light guiding membrane switch, and a keycap. The light guiding membrane switch is disposed on the bottom plate and includes a lower membrane layer, an upper membrane layer, a light guiding spacing layer, a reflective layer, and an adhering layer. The upper membrane layer is disposed above the lower membrane layer and farer from the bottom plate than the lower membrane layer. The light guiding spacing layer is disposed between the lower membrane layer and the upper membrane layer and includes opposite upper and lower surfaces. The reflective layer is securely fastened on the upper surface. The adhering layer is adhered between the reflective layer and the upper membrane layer, and a position and a shape of the adhering layer correspond to a position and a shape of the reflective layer.

A key device includes a bottom plate, a light guiding membrane switch, and a keycap. The light guiding membrane switch is disposed on the bottom plate and includes a lower membrane layer, an upper membrane layer, a light guiding spacing layer, a reflective layer, and an adhering layer. The upper membrane layer is disposed above the lower membrane layer and farer from the bottom plate than the lower membrane layer. The light guiding spacing layer is disposed between the lower membrane layer and the upper membrane layer and includes opposite upper and lower surfaces. The reflective layer is securely fastened on the upper surface. The adhering layer is adhered between the reflective layer and the upper membrane layer, and a position and a shape of the adhering layer correspond to a position and a shape of the reflective layer.

An electric lock includes a housing, a keypad module and a lock assembly. The keypad module is arranged on the housing. The keypad module includes a key panel, an electrode pad, a circuit board and a spacer. The key panel is marked with a plurality of key characters. The electrode pad is arranged on an inner side of the key panel, and the electrode pad has a plurality of key electrodes corresponding to the plurality of key characters respectively. The circuit board includes a plurality of key circuits. Each of the key circuits is configured to generate a key signal when contacting a corresponding key electrode. The spacer is configured to form a gap between each of the key circuits and the corresponding key electrode. The lock assembly is electrically connected to the keypad module for performing locking and unlocking operations according to the key signal.

An electric lock includes a housing, a keypad module and a lock assembly. The keypad module is arranged on the housing. The keypad module includes a key panel, an electrode pad, a circuit board and a spacer. The key panel is marked with a plurality of key characters. The electrode pad is arranged on an inner side of the key panel, and the electrode pad has a plurality of key electrodes corresponding to the plurality of key characters respectively. The circuit board includes a plurality of key circuits. Each of the key circuits is configured to generate a key signal when contacting a corresponding key electrode. The spacer is configured to form a gap between each of the key circuits and the corresponding key electrode. The lock assembly is electrically connected to the keypad module for performing locking and unlocking operations according to the key signal.

The disclosure provides a keyboard including a bottom plate, a key unit and a shielding layer. The bottom plate includes a through hole. The key unit is disposed on the bottom plate. The shielding layer covering a portion of the bottom plate includes a main part and an extension part extending from the main part toward the through hole. The shielding layer is provided with a black surface, and an orthographic projection of the key unit on the shielding layer overlaps the black surface.

The disclosure provides a keyboard including a bottom plate, a key unit and a shielding layer. The bottom plate includes a through hole. The key unit is disposed on the bottom plate. The shielding layer covering a portion of the bottom plate includes a main part and an extension part extending from the main part toward the through hole. The shielding layer is provided with a black surface, and an orthographic projection of the key unit on the shielding layer overlaps the black surface.