An illuminated touch key uses a chamfer structure of a light guide panel disposed on a sensing module or a light guide panel adjacent to a sensing module to guide light emitted by a light source to a hollow area of a keycap to emit light, thereby forming an illuminated pattern corresponding to the hollow area. Accordingly, a user can accurately find the location of the illuminated touch key according to the illuminated pattern. Since there is no need to add a light guide structure above the sensing module, the height of the illuminated touch key will not be increased, such that it is conducive to make the illuminated touch key thinner.

A key configured to be included in a keyboard is provided. The key includes a body having an upper surface that is contacted to provide input to a computer. The upper surface of the body has one or more openings. The key also includes one or more pins positioned in the body and aligned with the one or more openings, and one or more actuators coupled with the one or more pins. The one or more actuators configured to move the one or more pins to move through the one or more openings and project out from the upper surface of the body.