Abstract: A key structure includes a keycap, a scissors-type connecting element, a membrane module, a light-emitting element and a base plate. The light-emitting element is used for emitting light beams. The keycap has a protrusion structure for blocking the light beams and preventing the light beams from leaking out through the gap between said keycap and said base plate. The base plate has a slot corresponding to the protrusion structure. When the keycap is depressed, the membrane module is pressed by the protrusion structure to be subject to deformation, so that a deformed part of the membrane module is inserted into the slot of the base plate. In such way, the hand feel of depressing the keycap is not adversely affected.

Abstract: A key structure includes a keycap, a scissors-type connecting element, a membrane module, a light-emitting element and a base plate. The light-emitting element is used for emitting light beams. The keycap has a protrusion structure for blocking the light beams and preventing the light beams from leaking out through the gap between said keycap and said base plate. The base plate has a slot corresponding to the protrusion structure. When the keycap is depressed, the membrane module is pressed by the protrusion structure to be subject to deformation, so that a deformed part of the membrane module is inserted into the slot of the base plate. In such way, the hand feel of depressing the keycap is not adversely affected.

Abstract: A key structure with a scissors-type connecting member is provided. The scissors-type connecting member includes a first frame and a second frame. The first frame includes a rotating shaft and a pushing bulge. After the first frame is stacked on the second frame, if the second frame may be pushed by the pushing bulge, the second frame is subject to deformation to facilitate combining the first frame and the second frame together.