Patent ID: 8219166

Claim:
A mobile terminal comprising a back lighting structure for a key button, the back lighting structure comprising: at least one light emitting device, as a first layer, and configured to illuminate the key button; a case part formed of a light transmissive material, as a second layer, and configured to receive light from the light emitting device; a first coating layer, as a third layer, over the case part, excluding a specific region on the case part, and formed of a material having a transmittance different from a transmittance of the case part; and a first embossing coating layer, as a fourth layer, over the first coating layer and including at least one semi-transmissive material having a transmittance different from the transmittance of the first coating layer, scattered discretely and excluding a location of the key button, wherein the first, second, third and fourth layers are laminated in a series.