A display device comprising: a first insulating substrate; a main pixel (I, II) formed on the first insulating substrate having a plurality of sub-pixels (R, G, B) and a single sensing electrode (S.E) per main pixel (I, II); a second insulating substrate facing the first insulating substrate; a sensing spacer formed on the second insulating substrate which faces the sensing electrode (S.E); and a contact electrode formed on the sensing spacer; wherein each sub-pixel (R, G, B) comprises: a gate line (G.L; 320); a data line (D.L; 350) which intersects the gate line (G.L; 320); a thin film transistor connected to the gate line (G.L; 320) and the data line (D.L; 350); and a pixel electrode electrically connected to the thin film transistor, wherein the main pixel (I, II) comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel; characterized in that the display device further comprises: a first sensing line (X-S.L) formed parallel with the gate line (G.L; 320); a second sensing line (Y-S.L) formed parallel with the data line (D.L; 350); and an extending part which extends from the second sensing line (Y-S.L) and overlaps with the sensing electrode (S.E); and the main pixel (I, II) comprises: a first main pixel which comprises a Y-sensing electrode connected to the first sensing line (X-S.L); and a second main pixel which comprises an X-sensing electrode connected to the second sensing line (Y-S.L), wherein the first main pixel and the second main pixel are disposed alternately. a first insulating substrate; a main pixel (I, II) formed on the first insulating substrate having a plurality of sub-pixels (R, G, B) and a single sensing electrode (S.E) per main pixel (I, II); a second insulating substrate facing the first insulating substrate; a sensing spacer formed on the second insulating substrate which faces the sensing electrode (S.E); and a contact electrode formed on the sensing spacer; a gate line (G.L; 320); a data line (D.L; 350) which intersects the gate line (G.L; 320); a thin film transistor connected to the gate line (G.L; 320) and the data line (D.L; 350); and a pixel electrode electrically connected to the thin film transistor, wherein the main pixel (I, II) comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel; characterized in that the display device further comprises: a first sensing line (X-S.L) formed parallel with the gate line (G.L; 320); a second sensing line (Y-S.L) formed parallel with the data line (D.L; 350); and an extending part which extends from the second sensing line (Y-S.L) and overlaps with the sensing electrode (S.E); and the main pixel (I, II) comprises: a first main pixel which comprises a Y-sensing electrode connected to the first sensing line (X-S.L); and a second main pixel which comprises an X-sensing electrode connected to the second sensing line (Y-S.L), wherein the first main pixel and the second main pixel are disposed alternately. a first sensing line (X-S.L) formed parallel with the gate line (G.L; 320); a second sensing line (Y-S.L) formed parallel with the data line (D.L; 350); and an extending part which extends from the second sensing line (Y-S.L) and overlaps with the sensing electrode (S.E); and the main pixel (I, II) comprises: a first main pixel which comprises a Y-sensing electrode connected to the first sensing line (X-S.L); and a second main pixel which comprises an X-sensing electrode connected to the second sensing line (Y-S.L), wherein the first main pixel and the second main pixel are disposed alternately. a first main pixel which comprises a Y-sensing electrode connected to the first sensing line (X-S.L); and a second main pixel which comprises an X-sensing electrode connected to the second sensing line (Y-S.L), wherein the first main pixel and the second main pixel are disposed alternately.