Patent ID: 8890008
Filing Date: 2014-11-18
Classification: H01H

Abstract:
1. A keyboard comprising: a keyboard shell; a supporting panel arranged to the keyboard shell and having a plurality of elastomer holes therein; a plurality of keycaps arranged on the corresponding elastomer holes; a plurality of keycap supports between the supporting panel and the corresponding keycaps; a plurality of elastomers through the corresponding elastomer holes and being exposed out of the supporting panel; light emitting members arranged on the light emitting substrate and corresponding to each of the keycap; and an FPC sheet arranged between the light emitting substrate and the supporting panel, the FPC sheet comprising a key signal pads corresponding to each of the elastomer holes; the light emitting substrate arranged under the FPC sheet; the cross-section area of the elastomer hole is greater than that of the elastomer; the elastomer comprises a top part, an elastic supporting part which extends from the top part and defines a pressure enhancing protrusion under the top part, and a conductive layer arranged on the bottom surface of the pressure enhancing protrusion; the pressure enhancing protrusion is opposite to the key signal pad, when pressure is applied on the keycap, the pressure enhancing protrusion is forced to reach the key signal pad with conductive layer and electrically connected to the key signal pad, the pressure enhancing protrusion is supported on the FPC sheet by the elastic supporting part; the light emitting members are arranged on the light emitting substrate, and the light beams from the light emitting members go through the elastomer holes and reach the upper side of the supporting panel.