Patent ID: 8692145

Claim:
A keyboard, comprising: a membrane circuit board; a luminous key for triggering a membrane switch of said membrane circuit board, wherein said luminous key has a keycap with a light-transmissible part; a light-emitting element disposed on said membrane circuit board and arranged under said light-transmissible part for emitting a light beam; a plastic film layer disposed on the membrane circuit board, and comprising a convex structure, which is integrally formed with said plastic film layer, wherein said convex structure has a light-transmissible zone aligned with said light-emitting element; and a light shade with a second light-transmissible zone, and said light-transmissible zone of said convex structure includes a first opening, wherein said light shade is fixed between said convex structure and said membrane circuit board, and protruded upwardly out of said first opening.