A touch screen device for a portable terminal includes an Indium Tin Oxide (ITO) film providing a touch screen feature; a light guide film attached onto one surface of the ITO film; and a light emitting device attached onto one surface of the ITO film and disposed in one side of the light guide film, wherein light output from the light emitting device provides lighting to an area where the light guide film is attached, while passing through the light guide film, and wherein the light guide film and the light emitting device are installed on the ITO film by a surface mounting process, thus reducing manufacturing costs and making it possible to secure more space capable of mounting other parts which in turn contribute in miniaturizing portable terminals.