Touch display device and display panel

1. A touch display device comprising:

a display panel having disposed therein:

a plurality of X-touch electrode lines, which extend in a first direction and to which a touch driving signal is transmitted through a plurality of X-touch lines, an X-touch line of the plurality of X-touch lines being connected to an X-touch electrode line of the plurality of X-touch electrode lines, the X-touch electrode line being located in a non-square area; and

a plurality of Y-touch electrode lines, which extend in a second direction and transmit a touch sensing signal through a plurality of Y-touch lines, a Y-touch line of the plurality of Y-touch lines being connected to a Y-touch electrode line of the plurality of Y-touch electrode lines, the Y-touch electrode line being located in the non-square area; and

a touch driving circuit configured to supply the touch driving signal to the plurality of X-touch electrode lines and receive the touch sensing signal from the Y-touch electrode line to sense a touch,

wherein a plurality of overlapping areas in which at least some of the plurality of X-touch lines overlap at least some of the plurality of Y-touch lines are different from each other, a first overlapping area of the plurality of overlapping areas that is associated with the X-touch line and the Y-touch line having an area that is larger than respective areas of other overlapping areas associated with other X-touch lines and other Y-touch lines.

2. The touch display device of claim 1 , wherein at least some of the plurality of X-touch lines overlap at least some of the plurality of Y-touch lines in a bezel area of the display panel.

3. The touch display device of claim 1 , wherein at least some of the plurality of X-touch lines overlap at least some of the plurality of Y-touch lines in a printed circuit board on which the touch driving circuit is disposed.

4. The touch display device of claim 1 , wherein at least some of the plurality of X-touch lines overlap at least some of the plurality of Y-touch lines in a printed circuit board for compensation located between the touch driving circuit and the display panel.

5. The touch display device of claim 4 , wherein the plurality of X-touch lines and the plurality of Y-touch lines are in a plurality of groups according to positions of the plurality of X-touch electrode lines and the plurality of Y-touch electrode lines, and overlapping areas between the plurality of X-touch lines and the plurality of Y-touch lines are determined for each group of the plurality of groups.

6. The touch display device of claim 1 , wherein the first overlapping area is proportional to a difference between a capacitance value of the non-square area and a capacitance value of the square area.

7. The touch display device of claim 1 , wherein the plurality of overlapping areas are determined by varying widths of at least some of the plurality of X-touch lines.

8. The touch display device of claim 1 , wherein the plurality of overlapping areas are determined by varying widths of at least some of the plurality of Y-touch lines.

9. The touch display device of claim 1 , wherein the plurality of overlapping areas are determined by varying widths of at least some of the plurality of X-touch lines and widths of at least some of the plurality of Y-touch lines.

10. The touch display device of claim 1 , wherein each of the plurality of X-touch electrode lines includes:

a plurality of X-touch electrodes disposed in the same row; and

one or more X-touch electrode connection lines for electrically connecting the plurality of X-touch electrodes to each other, and

wherein the plurality of Y-touch electrode lines include a plurality of Y-touch electrodes disposed in the same column and one or more Y-touch electrode connection lines for electrically connecting the plurality of Y-touch electrodes to each other.

11. The touch display device of claim 10 , wherein the plurality of X-touch electrode connection lines are located on different layers than the plurality of Y-touch electrode connection lines.

12. The touch display device of claim 1 , wherein an area of the X-touch electrode line to which the touch driving signal is applied and an area of the Y-touch electrode line which transmits the touch sensing signal are formed at a ratio ranging from 5:1 to 2:1.

13. The touch display device of claim 1 , wherein the touch driving circuit includes:

a differential amplifier which is electrically connected to a first Y-touch line and a second Y-touch line among the plurality of Y-touch lines, and generates an output signal proportional to a difference between a first touch sensing signal received from a first Y-touch electrode line among the plurality of Y-touch electrode lines through the first Y-touch line and a second touch sensing signal received from a second Y-touch electrode line among the plurality of Y-touch electrode lines through the second Y-touch line; and

an integrator for integrating an output signal transmitted from the differential amplifier or integrating a signal in which the output signal is processed.

14. The touch display device of claim 13 , wherein an integral value output from the integrator is a value proportional to a difference between the first touch sensing signal and the second touch sensing signal.

15. The touch display device of claim 1 , wherein each of the plurality of X-touch lines is electrically connected to a respective one of the plurality of X-touch electrode lines through a contact hole, and a position at which each of the plurality of X-touch lines is electrically connected to the respective one of the plurality of X-touch electrode lines through the contact hole is disposed to have a constant separation distance from a corresponding Y-touch electrode line.

16. The touch display device of claim 15 , wherein the plurality of X-touch lines have a shifting structure in a shifting area, and the shifting area corresponds to edge areas of the plurality of X-touch electrode lines for uniform arrangement with respect to a corresponding Y-touch electrode line.

17. A touch display device comprising:

a plurality of X-touch electrode lines, which extend in a first direction and to which a touch driving signal is transmitted through a plurality of X-touch lines; and

a plurality of Y-touch electrode lines, which extend in a second direction and transmit a touch sensing signal through a plurality of Y-touch lines; and

a touch driving circuit configured to supply the touch driving signal to the plurality of X-touch electrode lines and receive the touch sensing signal from the Y-touch electrode line to sense a touch,

wherein a plurality of overlapping areas in which at least some of the plurality of X-touch lines overlap at least some of the plurality of Y-touch lines are different from each other, and

wherein distances between contact holes and Y-touch electrode lines adjacent thereto are the same as each other, the contact holes electrically connecting the plurality of X-touch lines to respective ones of the plurality of X-touch electrodes.

18. A display panel comprising:

a plurality of X-touch electrode lines which extend in a first direction and to which a touch driving signal is transmitted through a plurality of X-touch lines; and

a plurality of Y-touch electrode lines which extend in a second direction and transmit a touch sensing signal through a plurality of Y-touch lines,

wherein overlapping areas in which at least some of the plurality of X-touch lines overlap at least some of the plurality of Y-touch lines are different, and

wherein each of the plurality of X-touch lines is electrically connected to a respective one of the plurality of X-touch electrode lines through a contact hole, and respective positions at which each of the plurality of X-touch lines is electrically connected to the respective one of the plurality of X-touch electrode lines through the contact hole are disposed to have a same separation distance from a corresponding Y-touch electrode line.

19. The display panel of claim 18 , wherein at least some of the plurality of X-touch lines overlap at least some of the plurality of Y-touch lines in a bezel area.

20. The display panel of claim 18 , wherein at least some of the plurality of X-touch lines overlap at least some of the plurality of Y-touch lines in a printed circuit board for compensation.

21. The display panel of claim 20 , wherein the plurality of X-touch lines and the plurality of Y-touch lines are in a plurality of groups according to positions of the plurality of X-touch electrode lines and the plurality of Y-touch electrode lines, and overlapping areas between the plurality of X-touch lines and the plurality of Y-touch lines are determined for each group.

22. The display panel of claim 18 , wherein a first overlapping area of the plurality of overlapping areas is associated with an X-touch line and a Y-touch line, the X-touch line being connected to an X-touch electrode line located in a non-square area among the plurality of X-touch electrode lines, the Y-touch line being connected to a Y-touch electrode line located in the non-square area among the plurality of Y-touch electrode lines, the first overlapping area being larger than other overlapping areas associated with other X-touch lines and other Y-touch lines.

23. The display panel of claim 22 , wherein the first overlapping area is proportional to a difference between a capacitance value of the non-square area and a capacitance value of the square area.

24. The display panel of claim 18 , wherein the plurality of overlapping areas are determined by varying widths of at least some of the plurality of X-touch lines.

25. The display panel of claim 18 , wherein the plurality of overlapping areas are determined by varying widths of at least some of the plurality of Y-touch lines.

26. The display panel of claim 18 , wherein the plurality of overlapping areas are determined by varying widths of at least some of the plurality of X-touch lines and widths of at least some of the plurality of Y-touch lines.

27. The display panel of claim 18 , wherein the plurality of X-touch lines have a shifting structure in a shifting area, and the shifting area corresponds to edge areas of the plurality of X-touch electrode lines for uniform arrangement with respect to a corresponding Y-touch electrode line.

28. A touch display device, comprising:

a display panel having disposed therein:

a plurality of X-touch electrode lines, which extend in a first direction and to which a touch driving signal is transmitted through a plurality of X-touch lines; and

a plurality of Y-touch electrode lines, which extend in a second direction and transmit a touch sensing signal through a plurality of Y-touch lines; and

a touch driving circuit configured to supply the touch driving signal to the plurality of X-touch electrode lines and receive the touch sensing signal from the plurality of Y-touch electrode lines to sense a touch, the touch driving circuit including:

a differential amplifier which is electrically connected to a first Y-touch line and a second Y-touch line among the plurality of Y-touch lines, and generates an output signal proportional to a difference between a first touch sensing signal received from a first Y-touch electrode line among the plurality of Y-touch electrode lines through the first Y-touch line and a second touch sensing signal received from a second Y-touch electrode line among the plurality of Y-touch electrode lines through the second Y-touch line; and

an integrator for integrating an output signal transmitted from the differential amplifier or integrating a signal in which the output signal is processed;

wherein a plurality of overlapping areas in which at least some of the plurality of X-touch lines overlap at least some of the plurality of Y-touch lines have areas that are different in size from each other.

29. The touch display device of claim 28 , wherein:

the plurality of X-touch lines includes:

a first X-touch line that is connected to a first X-touch electrode line of the plurality of X-touch electrode lines; and

a second X-touch line that is connected to a second X-touch electrode line of the plurality of X-touch electrode lines;

the plurality of Y-touch lines includes a first Y-touch line that is connected to a first Y-touch electrode line of the plurality of Y-touch electrode lines;

the second X-touch electrode line has area that exceeds that of the first X-touch electrode line; and

the first Y-touch line includes:

a first overlapping area that overlaps the first X-touch line; and

a second overlapping area that overlaps the second X-touch line, the first overlapping area being larger than the second overlapping area.