An apparatus for identifying coordinates of a touch area on a touch screen panel (310, 710, 810, 1110) based on a capacitive scheme, the apparatus comprising: the touch screen panel (310, 710, 810, 1110) comprising a first electrode layer having first electrode lines (313-1,.., 313-n, 713-1,.., 713-n, 813-1,.., 813-n, 1113-1,.., 1113-n) (311-1,.., 311-n, 711-1,.., 711-n, 811-1,.., 811-n, 1111-1,.., 1111-n) aligned in a first direction and a second electrode layer having second electrode lines aligned in a second direction, wherein the second direction is different from the first direction, and wherein an electric field exists between the first electrode layer and the second electrode layer; a signal generation unit (320, 720, 820, 1120) for generating a spread spectrum signal and supplying the spread spectrum signal to the first electrode layer; a signal restoration unit (330, 730, 830, 1130) for processing a band restoration for a signal input from the second electrode layer; and a touch area coordinate identification unit (340, 740, 840, 1140) for identifying the coordinates of the touch area on the touch screen panel (310, 710, 810, 1110) from a signal input from the signal restoration unit (330, 730, 830, 1130), wherein the signal generation unit (320, 720, 820, 1120) comprises: an input signal generator for generating an input signal required for identifying the coordinates of the touch area; a spread spectrum code generator (323, 723, 823, 1123) for generating a spread spectrum code with a higher frequency than the frequency of the input signal; and a spread spectrum processor (325, 725, 825, 1125) for combining the input signal and the spread spectrum code to generate the spread spectrum signal, wherein the signal generation unit (320, 720, 820, 1120) further comprises an electrode selector that sequentially supplies the spread spectrum signal to the first electrode lines (313-1,.., 313-n, 713-1,.., 713-n, 813-1,.., 813-n, 1113-1,.., 1113-n) (311-1,.., 311-n, 711-1,..,711-n, 811-1,.., 811-n, 1111-1,.., 1111-n). the touch screen panel (310, 710, 810, 1110) comprising a first electrode layer having first electrode lines (313-1,.., 313-n, 713-1,.., 713-n, 813-1,.., 813-n, 1113-1,.., 1113-n) (311-1,.., 311-n, 711-1,.., 711-n, 811-1,.., 811-n, 1111-1,.., 1111-n) aligned in a first direction and a second electrode layer having second electrode lines aligned in a second direction, wherein the second direction is different from the first direction, and wherein an electric field exists between the first electrode layer and the second electrode layer; a signal generation unit (320, 720, 820, 1120) for generating a spread spectrum signal and supplying the spread spectrum signal to the first electrode layer; a signal restoration unit (330, 730, 830, 1130) for processing a band restoration for a signal input from the second electrode layer; and a touch area coordinate identification unit (340, 740, 840, 1140) for identifying the coordinates of the touch area on the touch screen panel (310, 710, 810, 1110) from a signal input from the signal restoration unit (330, 730, 830, 1130), wherein the signal generation unit (320, 720, 820, 1120) comprises: an input signal generator for generating an input signal required for identifying the coordinates of the touch area; a spread spectrum code generator (323, 723, 823, 1123) for generating a spread spectrum code with a higher frequency than the frequency of the input signal; and a spread spectrum processor (325, 725, 825, 1125) for combining the input signal and the spread spectrum code to generate the spread spectrum signal, wherein the signal generation unit (320, 720, 820, 1120) further comprises an electrode selector that sequentially supplies the spread spectrum signal to the first electrode lines (313-1,.., 313-n, 713-1,.., 713-n, 813-1,.., 813-n, 1113-1,.., 1113-n) (311-1,.., 311-n, 711-1,..,711-n, 811-1,.., 811-n, 1111-1,.., 1111-n). an input signal generator for generating an input signal required for identifying the coordinates of the touch area; a spread spectrum code generator (323, 723, 823, 1123) for generating a spread spectrum code with a higher frequency than the frequency of the input signal; and a spread spectrum processor (325, 725, 825, 1125) for combining the input signal and the spread spectrum code to generate the spread spectrum signal, wherein the signal generation unit (320, 720, 820, 1120) further comprises an electrode selector that sequentially supplies the spread spectrum signal to the first electrode lines (313-1,.., 313-n, 713-1,.., 713-n, 813-1,.., 813-n, 1113-1,.., 1113-n) (311-1,.., 311-n, 711-1,..,711-n, 811-1,.., 811-n, 1111-1,.., 1111-n).