Keypad and manufacturing method thereof

Abstract

A method for manufacturing a keypad is provided. First, a patterned metallic sheet is provided. This patterned metallic sheet has a front surface and a rear surface and includes a plurality of key units that can be operated independently. These key units have a plurality of hollow structures thereon. Then, an adhesion-enhancing layer is formed on the rear surface of the patterned metallic sheet. Next, a color layer is formed on the adhesion-enhancing layer. A protruding point layer is formed on the adhesion-enhancing layer to cover the color layer. The protruding point layer has a plurality of protruding points that correspond to the positions of the key units. Finally, a light emitting device layer is disposed on the protruding point layer. The keypad manufactured according the disclosed method has a better light transmitting uniformity.

Dependencies are inferred from the claim text.