Keypad assembly for electronic device

Abstract

A keypad assembly (100) includes a first soft layer (10), a stiff layer (20) mounted to the first soft layer, an optical layer (40) located under the stiff layer, and a second soft layer (50) mounted to the optical layer. The first soft layer has at least one protrusion (112) formed thereon. The stiff layer has at least one icon (222) formed thereon. The at least one icon corresponds to the at least one protrusion. The optical layer has at least one focusing unit (42) formed thereon. The at least one focusing unit corresponds to the at least one icon. The second soft layer has at least one switch point (522). The at least one switch point corresponds to the at least one protrusion.

Dependencies are inferred from the claim text.