Display device including a touch sensing unit
A display device includes a display panel including pixels and a scan driver for driving the pixels. The pixels are in a display area and the scan driver is in a non-display area. A touch sensing unit is disposed on the display panel and includes touch electrodes disposed in a sensing area and touch sensing lines connected to the touch electrodes. The non-display area includes at least one multiplexer, the touch sensing lines are electrically connected to input terminals of the at least one multiplexer through touch contact holes formed on the display panel. Sensing channels electrically connected to output terminals of the multiplexer are parallel to the scan driver. The at least one multiplexer is disposed between the sensing channels and the scan driver.
1. A display device, comprising:
a display panel including pixels and a scan driver for driving the pixels, the pixels being disposed within a display area and the scan driver being disposed in a non-display area; and
a touch sensing unit disposed on the display panel and including touch electrodes disposed in a sensing area and touch sensing lines connected to the touch electrodes;
wherein at least one multiplexer is disposed within the non-display area,
wherein the touch sensing lines are electrically connected to input terminals of the at least one multiplexer through touch contact holes formed in the display panel,
wherein sensing channels electrically connected to output terminals of the at least one multiplexer run parallel to the scan driver, and
wherein the at least one multiplexer is disposed between the scan driver and the sensing channels.
2. The display device of claim 1 , wherein
the at least one multiplexer includes a plurality of switching elements, and gate control lines for controlling the plurality of switching elements are disposed on one side of the at least one multiplexer.
3. The display device of claim 2 , wherein
a number of the touch sensing lines is greater than a number of the sensing channels.
4. The display device of claim 2 , wherein
the sensing channels and the gate control lines are disposed on opposite sides of the at least one multiplexer.
5. The display device of claim 2 , wherein
the gate control lines are disposed in parallel to the sensing channels.
6. The display device of claim 2 , wherein
the scan driver includes stages for providing a scan signal to each of the pixels.
7. The display device of claim 6 , wherein
scan control lines for driving the stages are disposed on one side of the stages.
8. The display device of claim 7 , wherein
the scan control lines include a first clock signal line, a second clock signal line, and a scan start signal line.
9. The display device of claim 7 , wherein
the scan control lines are disposed between the sensing channels and the stages.
10. The display device of claim 9 , further comprising:
a second power voltage line extending in parallel to the scan control lines, wherein a second power voltage supplied through the second power voltage line is a DC voltage.
11. The display device of claim 10 , wherein
the second power voltage line is disposed between the gate control lines and the scan control lines.
12. The display device of claim 10 , wherein
the sensing channels are disposed between the second power voltage line and the scan control lines.
13. The display device of claim 7 , further comprising:
a touch driving voltage line and a touch ground voltage line disposed between the scan control lines and the gate control lines.
14. The display device of claim 1 , wherein
the touch sensing unit includes a conductive layer and an insulating layer.
15. The display device of claim 14 , wherein
the conductive layer includes the touch electrode and the touch sensing lines.
16. A display device, comprising:
a display panel including pixels and a scan driver for driving the pixels, the pixels being disposed within a display area and the scan driver being disposed in a non-display area; and
a touch sensing unit disposed on the display panel and including touch electrodes disposed in a sensing area and touch sensing lines connected to the touch electrodes;
wherein at least one multiplexer is disposed within the non-display area,
wherein the touch sensing lines are electrically connected to input terminals of the at least one multiplexer through a touch contact hole formed in the display panel,
wherein sensing channels electrically connected to output terminals of the at least one multiplexer are connected to touch signal pads formed in one area of the non-display area,
wherein scan control lines for controlling the scan driver are connected to display signal pads formed in one area of the non-display area, and
wherein the touch signal pads and the display signal pads are disposed on opposite sides of the display panel.
17. The display device of claim 16 , wherein
the at least one multiplexer includes a plurality of switching elements, and gate control lines for controlling the plurality of switching elements are disposed on one side of the at least one multiplexer.
18. The display device of claim 17 , wherein
the sensing channels and the gate control lines are disposed on opposite sides of the at least one multiplexer.
19. The display device of claim 18 , further comprising:
a second power voltage line connected to the display signal pads, wherein the gate control lines are disposed between the second power voltage line and the at least one multiplexer.
20. The display device of claim 16 , wherein
the scan control lines include a first clock signal line, a second clock signal line, and a scan start signal line.
21. A display device, comprising:
a display panel including pixels and a scan driver for driving the pixels, the pixels being disposed in a display area and the scan driver being disposed in a non-display area; and
a touch sensing unit disposed on the display panel and including touch electrodes disposed in a sensing area and touch sensing lines connected to the touch electrodes;
wherein the non-display area includes at least one multiplexer,
wherein the touch sensing lines are electrically connected to input terminals of the at least one multiplexer through touch contact holes formed in the display panel,
wherein sensing channels electrically connected to output terminals of the at least one multiplexer are parallel to the scan driver, and
wherein a second power voltage line is disposed between the sensing channels and the scan driver and is parallel to the sensing channels and the scan driver.
22. The display device of claim 21 , wherein
the at least one multiplexer includes a plurality of switching elements, and gate control lines for controlling the plurality of switching elements are disposed on one side of the at least one multiplexer.
23. The display device of claim 22 , wherein
the sensing channels and the gate control lines are disposed on opposite sides of the at least one multiplexer.
24. The display device of claim 23 , further comprising:
a touch driving voltage line and a touch ground voltage line disposed between the gate control lines and the at least one multiplexer.
25. The display device of claim 21 , wherein
the scan driver includes stages for providing a scan signal to each of the pixels,
scan control lines for driving the stages are disposed on one side of the stages, and
the scan control lines include a first clock signal line, a second clock signal line, and a scan start signal line.
26. The display device of claim 25 , wherein
the scan control lines are disposed between the second power voltage line and the stages.
27. The display device of claim 21 , wherein
a second power voltage supplied through the second power voltage line is a DC voltage.