Patent ID: 7905627

Claim:
A keypad device capable of symbol identification for an electronic product comprising: a substrate; a first light-emitting device electrically coupled to the substrate for generating a first colored light source; a second light-emitting device electrically coupled to the substrate for generating a second colored light source different from the first colored light source; a first transparent board made of a translucent material of a first color for displaying a first symbol, and deployed on the first light-emitting device and the second light-emitting device; a second transparent board made of a translucent material of a second color for displaying a second symbol, and deployed on the first light-emitting device and the second light-emitting device; and a transparent film deployed on the first transparent board and the second transparent board; wherein the first color is a complementary color to the first colored light source, and the second color is a complementary color to the second colored light source.