A system may comprise a printed circuit board (PCB) including a top surface, and a bracket including a top surface configured to receive and couple to a key switch and a bottom surface including at least two protrusions that extend normal to the bottom surface of the bracket. The bracket can be configured to mount to the PCB such that the bottom surface of the bracket is coupled to the top surface of the PCB, and the at least two protrusions may each include conductive leads that couple to the top surface of the PCB. The bracket is configured to only cover a portion of a bottom surface of the key switch when coupled to the key switch. An LED can be mounted to the top surface of the PCB, laterally adjacent to the bracket, and under the key switch at a location not covered by the bracket.

An input device comprises an operation key arranged in an opening of a panel; and a light source and a push button switch each arranged in a position opposite to the opening on a board, wherein the operation key includes: a key top having a pressing part extending toward the push button switch, wherein the pressing part is arranged in a position separated from a center position in planar view of the key top on a line that is parallel to a line connecting connection parts of the key top, which are connected with one pair out of one or more pairs of arms, and passes through the center position, and wherein the push button switch is arranged in a position on the board opposite to an arrangement position of the pressing part,

A system may comprise a printed circuit board (PCB) including a top surface, and a bracket including a top surface configured to receive and couple to a key switch and a bottom surface including at least two protrusions that extend normal to the bottom surface of the bracket. The bracket can be configured to mount to the PCB such that the bottom surface of the bracket is coupled to the top surface of the PCB, and the at least two protrusions may each include conductive leads that couple to the top surface of the PCB. The bracket is configured to only cover a portion of a bottom surface of the key switch when coupled to the key switch. An LED can be mounted to the top surface of the PCB, laterally adjacent to the bracket, and under the key switch at a location not covered by the bracket.

An input device including an operation key arranged in an opening of a panel is provided. The input device also includes a light source and a push button switch each being arranged in a position opposite an opening on a board. The operation key includes: a key top having a pressing part extending toward the push button switch. The pressing part is arranged in a position separated from a center position in planar view of the key top on a line that is parallel to a line connecting connection parts of the key top, which are connected with one pair out of one or more pairs of arms, and passes through the center position. The push button switch is arranged in a position on the board opposite an arrangement position of the pressing part.

A system may comprise a printed circuit board (PCB) including a top surface, and a bracket including a top surface configured to receive and couple to a key switch and a bottom surface including at least two protrusions that extend normal to the bottom surface of the bracket. The bracket can be configured to mount to the PCB such that the bottom surface of the bracket is coupled to the top surface of the PCB, and the at least two protrusions may each include conductive leads that couple to the top surface of the PCB. The bracket is configured to only cover a portion of a bottom surface of the key switch when coupled to the key switch. An LED can be mounted to the top surface of the PCB, laterally adjacent to the bracket, and under the key switch at a location not covered by the bracket.

A modular frame including a push-button area is provided. The push-button area has a function key hole group, an alphabet key hole group, a number key hole group, a shift key hole, a space key hole, a backspace key hole, and an enter key hole. The shift key hole is located at one side of the alphabet key hole group and has a first processing region. The space key hole is disposed at a bottom end of the push-button area and has second, third, and fourth processing regions. The backspace key hole has a fifth processing region. The enter key hole is located below the backspace key hole and has sixth and seventh processing regions. The first to seventh processing regions may be selectively performed with a process to switch the modular frame to a first, second, or third configuration.

A mechanical keyboard includes printed circuit boards (PCBs), each having a pin holder; and a hole; mechanical switches to removably engage with the printed circuit boards, each of the mechanical switches having a body; a pin extending from the body to engage with the pin holder; a pillar extending from the body to engage with the hole; and a compressible switch extending upward from the body and associated with the pillar; a plurality of keys to engage with the compressible switch of the mechanical switches; the plurality of mechanical switches are to be removed from the PCBs by hand.

A modular frame including a push-button area is provided. The push-button area has a function key hole group, an alphabet key hole group, a number key hole group, a shift key hole, a space key hole, a backspace key hole, and an enter key hole. The shift key hole is located at one side of the alphabet key hole group and has a first processing region. The space key hole is disposed at a bottom end of the push-button area and has second, third, and fourth processing regions. The backspace key hole has a fifth processing region. The enter key hole is located below the backspace key hole and has sixth and seventh processing regions. The first to seventh processing regions may be selectively performed with a process to switch the modular frame to a first, second, or third configuration.

A key switch includes a key top; a pair of links that support the key top such that the key top is capable of being elevated and lowered; and a switch that opens and closes a contact point with respect to an elevating operation of the key top, wherein each of the links includes two arms, a connection portion that connects the two arms, two first shafts respectively formed at outer portions of the two arms, and two second shafts respectively formed at inner portions of the two arms, and wherein the key top includes at least four first support portions each being provided with a first guide groove in which the respective first shaft is slidable, and at least four second support portions each being provided with a second guide groove in which the respective second shaft is slidable.

A key switch includes a key top; a pair of links that support the key top such that the key top is capable of being elevated and lowered; and a switch that opens and closes a contact point with respect to an elevating operation of the key top, wherein each of the links includes two arms, a connection portion that connects the two arms, two first shafts respectively formed at outer portions of the two arms, and two second shafts respectively formed at inner portions of the two arms, and wherein the key top includes at least four first support portions each being provided with a first guide groove in which the respective first shaft is slidable, and at least four second support portions each being provided with a second guide groove in which the respective second shaft is slidable.