Patent ID: 7119296
Filing Date: 2006-10-10
Classification: H01H

Abstract:
1. A keypad, comprising: a patterned thin plastic sheet, having a first surface and a second surface, and the patterned thin plastic sheet comprising a plurality of touch buttons that are independently operated, wherein a plurality of hollow patterned structures are on the touch buttons; a metal layer, disposed on the first surface of the patterned thin plastic sheet and on the sidewall of the hollow patterned structures; an adhesion enhancing layer, disposed on the second surface of the patterned thin plastic sheet; a colored layer, disposed on the adhesion enhancing layer; and a protruding point layer, disposed on the adhesion enhancing layer and covering the colored layer, wherein the protruding point layer has a plurality of protrusions and positions of the protrusions correspond to the touch buttons respectively.