Key structure

A key structure, comprising:

• a base;
• an elastic member, disposed on the base;
• a scissors structure, movably disposed on the base;
• and
• a keycap module, having a carrier and a light source, wherein the carrier is detachably assembled to the scissors structure and abuts the elastic member, the light source is disposed in the carrier, the light source is electrically connected to a bottom portion of the base through a flexible circuit member penetrating the carrier, passing the scissors structure, and penetrating the base, and a top portion of the carrier has light transmittance so that light from the light source can pass through the top portion to be projected from the key structure,
• wherein the carrier comprises a bearing seat and an upper cover, the light source is disposed inside the bearing seat, the upper cover is assembled to the bearing seat to cover the light source, the flexible circuit member penetrates the bearing seat, and the upper cover has light transmittance,
• wherein the key structure further comprises a heat dissipation pad disposed in the bearing seat and configured to transfer heat generated by the light source to the bearing seat.