Key structure

A key structure, comprising:

• a keycap comprising a first light-transmissible area, a second light-transmissible area, a third light-transmissible area and a fourth light-transmissible area;
• a backlight module located under the keycap, and comprising a first light-emitting element, a second light-emitting element, a third light-emitting element and a fourth light-emitting element, wherein the first light-emitting element corresponds to the first light-transmissible area, the second light-emitting element corresponds to the second light-transmissible area, the third light-emitting element corresponds to the third light-transmissible area, and the fourth light-emitting element corresponds to the fourth light-transmissible area;
• an elastic element made of an opaque material, wherein the keycap is permitted to be elastically restored to an original position through the elastic element;
• and
• a switch layer and a base plate, wherein the switch layer is located over the base plate, and the switch layer and the base plate are arranged between the elastic element and the backlight module, wherein the switch layer comprises at least one opening, and the base plate comprises at least one clearance hole, wherein the at least one opening and the at least one clearance hole are in communication with each other, and the first light-emitting element, the second light-emitting element, the third light element and the third light-emitting element are accommodated within the at least one opening and the at least one clearance hole,
• wherein the keycap has a keycap orthographic projection area on the backlight module, and the keycap orthographic projection area is divided into a first region, a second region, a third region and a fourth region by the elastic element, wherein the first light-emitting element is included in the first region, the second light-emitting element is included in the second region, the third light-emitting element is included in the third region, and the fourth light-emitting element is included in the fourth region.

A key structure, comprising:

• a keycap comprising a first light-transmissible area;
• a backlight module located under the keycap, and comprising a first light-emitting element, wherein the first light-emitting element is misaligned with the first light-transmissible area;
• an elastic element arranged between a first light propagation path of the first light-emitting element and the first light-transmissible area, wherein the keycap is permitted to be elastically restored to an original position through the elastic element, and the elastic element is made of an opaque material, wherein the elastic element comprises:
• a top part upwardly contacted with the keycap, and comprising a first surface and a second surface, wherein the first surface and the second surface are opposed to each other, and the first surface and the second surface are strip-shaped;
• a bottom part located near the backlight module;
• and
• a lateral wall part connected with the top part and the bottom part,
• wherein the keycap has a keycap orthographic projection area on the backlight module, and the keycap orthographic projection area is divided into a first region and a second region by the elastic element;
• and
• a second light-transmissible area, and the backlight module further comprises a second light-emitting element, wherein the second light-transmissible area is directly located over the first light-emitting element, and the second light-emitting element is directly located under the first light-transmissible area.

A key structure, comprising:

• a keycap comprising a first light-transmissible area, a second light-transmissible area, a third light-transmissible area and a fourth light-transmissible area;
• a backlight module located under the keycap, and comprising a first light-emitting element, a second light-emitting element, a third light-emitting element and a fourth light-emitting element, wherein the first light-emitting element corresponds to the first light-transmissible area, the second light-emitting element corresponds to the second light-transmissible area, the third light-emitting element corresponds to the third light-transmissible area, and the fourth light-emitting element corresponds to the fourth light-transmissible area;
• and
• an elastic element made of an opaque material, wherein the keycap is permitted to be elastically restored to an original position through the elastic element, wherein the elastic element comprises a central portion, a first extension portion, a second extension portion, a third extension portion and a fourth extension portion, wherein the central portion is arranged between the first light-emitting element, the second light-emitting element, the third light-emitting element and the fourth light-emitting element, the first extension portion is arranged between the first light-emitting element and the second light-emitting element, the second extension portion is arranged between the second light-emitting element and the third light-emitting element, the third extension portion is arranged between the third light-emitting element and the fourth light-emitting element, and the fourth extension portion is arranged between the fourth light-emitting element and the first light-emitting element,
• wherein the keycap has a keycap orthographic projection area on the backlight module, and the keycap orthographic projection area is divided into a first region, a second region, a third region and a fourth region by the elastic element, wherein the first light-emitting element is included in the first region, the second light-emitting element is included in the second region, the third light-emitting element is included in the third region, and the fourth light-emitting element is included in the fourth region.