Patent ID: 8168904

Claim:
An illumination button switch assembly for an electronic device, comprising: a substrate; a switch element, disposed on the substrate to be triggered to generate a switching signal, and the switch element comprising two printed wires insulated from each other; a flexible and light-pervious supporting member, having a top end and a bottom end opposite to the top end, a concave hollow portion formed on the bottom end, and the bottom end being disposed above the switch element and spaced from the switch element, wherein the printed wires of the switch element are contacted by the bottom end of the supporting member to be short-circuit to generate the switching signal; a light source, disposed on the substrate and corresponding to the bottom end of the supporting member and located between the two printed wires, for projecting light to the hollow portion; and a button cap, fixed on the top end of the supporting member to be pressed to push the supporting member to contact the switch element with the bottom end, at least a part of the button cap being light-pervious for the light passing through the hollow portion to penetrate the button cap.