A touch display device comprising: a display panel in which a plurality of data lines, a plurality of gate lines, a plurality of touch electrodes, and a plurality of touch lines connected to respective touch electrodes of subpixels disposed within the display panel are disposed, wherein the plurality of touch electrodes (TEi) is also used as a common electrode in the subpixels; and a touch driver circuit (STIC) configured to detect a change in capacitance between the plurality of touch electrodes and a finger or a change in capacitance between the plurality of touch electrodes and a pen, wherein the display panel is configured to operate in a pen search mode and a local scan mode, which are different from each other, each of the pen search mode and the local scan mode comprising a plurality of display sections, wherein during each of the pen search mode and the local scan mode, time slots of a display section (Display On) of a single frame, in which an image is updated and displayed, include pen sensing sections (PS1, PS2,..., PSk) and in addition finger sensing sections (FS1, FS2,..., FSn) which are divided by a time division scheme wherein the touch electrodes simultaneously act as the touch electrodes to sense touches while acting as the common electrodes, and a plurality of blank sections, in which no image is updated and in at least some of which a beacon section is performed in which the pen receives a pen communications information signal, and wherein the touch driver circuit (STIC) is configured to output the pen communications information signal to one or more of the touch electrodes for transmitting the pen communications information signal to the pen during one or more of the blank sections of the pen search mode and to sense a pen output signal output by the pen in response to the pen communications information signal during one or more of the pen sensing sections (PS1, PS2,..., PSk), and the touch driver circuit (STIC) is configured to supply a touch driving signal to the plurality of touch electrodes for sensing the change in capacitance between the plurality of touch electrodes and a finger during one or more of the finger sensing sections (FS1, FS2,..., FSn). a display panel in which a plurality of data lines, a plurality of gate lines, a plurality of touch electrodes, and a plurality of touch lines connected to respective touch electrodes of subpixels disposed within the display panel are disposed, wherein the plurality of touch electrodes (TEi) is also used as a common electrode in the subpixels; and a touch driver circuit (STIC) configured to detect a change in capacitance between the plurality of touch electrodes and a finger or a change in capacitance between the plurality of touch electrodes and a pen, wherein the display panel is configured to operate in a pen search mode and a local scan mode, which are different from each other, each of the pen search mode and the local scan mode comprising a plurality of display sections, wherein during each of the pen search mode and the local scan mode, time slots of a display section (Display On) of a single frame, in which an image is updated and displayed, include pen sensing sections (PS1, PS2,..., PSk) and in addition finger sensing sections (FS1, FS2,..., FSn) which are divided by a time division scheme wherein the touch electrodes simultaneously act as the touch electrodes to sense touches while acting as the common electrodes, and a plurality of blank sections, in which no image is updated and in at least some of which a beacon section is performed in which the pen receives a pen communications information signal, and wherein the touch driver circuit (STIC) is configured to output the pen communications information signal to one or more of the touch electrodes for transmitting the pen communications information signal to the pen during one or more of the blank sections of the pen search mode and to sense a pen output signal output by the pen in response to the pen communications information signal during one or more of the pen sensing sections (PS1, PS2,..., PSk), and the touch driver circuit (STIC) is configured to supply a touch driving signal to the plurality of touch electrodes for sensing the change in capacitance between the plurality of touch electrodes and a finger during one or more of the finger sensing sections (FS1, FS2,..., FSn).