Patent ID: 8431843

Claim:
A luminous keyboard, comprising: at least an illumination element for providing light beams for the luminous keyboard; a membrane circuit board, comprising: a lower board having a first circuit layout and a plurality of light guide points, the first circuit layout having a plurality of lower pads, and the light guide points being used to aggregate and scatter the light beams provided by the illumination element, wherein the lower board comprises a first membrane and a second membrane in order to increase an upward-scattering light quality of the light guide points; and an upper board having a second circuit layout, the second circuit layout having a plurality of upper pads corresponding to the lower pads, a distance formed between each of the upper pads and the corresponding one of the lower pads, and each of the upper pads and the corresponding one of the lower pads together forming a membrane switch; and a plurality of keys corresponding to the membrane switches for conducting the membrane switches.