A touch sensing device comprising: a display panel comprising multiple touch sensors, and a touch sensing circuit electrically coupled to the multiple touch sensors, comprising: a sensing signal detection unit configured to successively output a driving signal to be applied to multiple touch sensors and detect a sensing signal through the multiple touch sensors; and a selection circuit configured to electrically connect different numbers of touch sensors to the sensing signal detection unit with regard to a case of contact touch driving and a case of non-contact touch driving; wherein the selection circuit is configured to electrically connect a first number of touch sensors to the sensing signal detection unit in the case of contact touch driving and is configured to electrically connect a second number of touch sensors to the sensing signal detection unit in the case of non-contact touch driving, wherein the second number of touch sensors is larger than the first number of touch sensors; wherein the sensing signal detection unit is configured to output a first driving signal (Vf) during a contact touch driving period and to output a second driving signal (Vh) during a non-contact touch driving period, the second driving signal (Vh) comprising an overdriving voltage (Vover), compared with the first driving signal (Vf), during a predetermined overdriving period, wherein the overdriving period in connection with a pulse of the second driving signal (Vh) supplied to the second number of touch sensors during the non-contact touch driving period corresponds to a part of the width of the pulse. a display panel comprising multiple touch sensors, and a touch sensing circuit electrically coupled to the multiple touch sensors, comprising: a sensing signal detection unit configured to successively output a driving signal to be applied to multiple touch sensors and detect a sensing signal through the multiple touch sensors; and a selection circuit configured to electrically connect different numbers of touch sensors to the sensing signal detection unit with regard to a case of contact touch driving and a case of non-contact touch driving; wherein the selection circuit is configured to electrically connect a first number of touch sensors to the sensing signal detection unit in the case of contact touch driving and is configured to electrically connect a second number of touch sensors to the sensing signal detection unit in the case of non-contact touch driving, wherein the second number of touch sensors is larger than the first number of touch sensors; wherein the sensing signal detection unit is configured to output a first driving signal (Vf) during a contact touch driving period and to output a second driving signal (Vh) during a non-contact touch driving period, the second driving signal (Vh) comprising an overdriving voltage (Vover), compared with the first driving signal (Vf), during a predetermined overdriving period, wherein the overdriving period in connection with a pulse of the second driving signal (Vh) supplied to the second number of touch sensors during the non-contact touch driving period corresponds to a part of the width of the pulse. a sensing signal detection unit configured to successively output a driving signal to be applied to multiple touch sensors and detect a sensing signal through the multiple touch sensors; and a selection circuit configured to electrically connect different numbers of touch sensors to the sensing signal detection unit with regard to a case of contact touch driving and a case of non-contact touch driving; wherein the selection circuit is configured to electrically connect a first number of touch sensors to the sensing signal detection unit in the case of contact touch driving and is configured to electrically connect a second number of touch sensors to the sensing signal detection unit in the case of non-contact touch driving, wherein the second number of touch sensors is larger than the first number of touch sensors; wherein the sensing signal detection unit is configured to output a first driving signal (Vf) during a contact touch driving period and to output a second driving signal (Vh) during a non-contact touch driving period, the second driving signal (Vh) comprising an overdriving voltage (Vover), compared with the first driving signal (Vf), during a predetermined overdriving period, wherein the overdriving period in connection with a pulse of the second driving signal (Vh) supplied to the second number of touch sensors during the non-contact touch driving period corresponds to a part of the width of the pulse.