Organic light emitting display module and organic light emitting display device having the same
Provided is an organic light emitting display module including an active area, a pad area, and a boundary area between the active area and the pad area. Unlike the active area and the pad area, since the boundary area does not include an inorganic layer, less stress is applied to the boundary area when the boundary area is bent. Display panel pads and touch sensing member pads are disposed at the same height without having a height difference therebetween. Thus, a dummy pad may be added to remove the height difference between the display panel pads and the touch sensing member pads.
1. A display device comprising:
a base layer including a display area and a non-display area;
a display element layer disposed on the base layer to overlap the display area;
an encapsulation layer disposed on the display element layer;
a touch sensor disposed on the encapsulation layer;
a first pad disposed on the base layer to overlap the non-display area; and
a second pad disposed on the first pad,
wherein one of the first pad and the second pad is electrically connected to one of the display element layer and the touch sensor,
wherein the touch sensor comprises a touch insulation layer overlapping the display area and the non-display area, and
wherein the touch insulation layer is disposed between the first pad and the second pad.
2. The display device of claim 1 , wherein the display element layer includes a pixel and the one of the first pad and the second pad is electrically connected to the pixel, and
wherein the touch sensor includes a conductive pattern and the other one of the first pad and the second pad is electrically connected to the conductive pattern.
3. The display device of claim 1 , wherein the other one of the first pad and the second pad includes a floating dummy electrode.
4. The display device of claim 1 , wherein the one of the first pad and the second pad connected to the display device layer is disposed on the same layer as the display device layer and the other one of the first pad and the second pad connected to the touch sensor is disposed on the same layer as the touch sensor.
5. The display device of claim 1 , wherein the first pad includes a first lower pad and a second lower pad disposed adjacent to the first lower pad, the second pad includes a first upper pad and a second upper pad disposed adjacent to the first upper pad, and the first upper pad is disposed on the first lower pad and the second upper pad is disposed on the second lower pad.
6. The display device of claim 5 , wherein the first lower pad is connected to the display element layer, the second lower pad includes a floating dummy electrode, the first upper pad includes a floating dummy electrode, and the second upper pad is connected to the touch sensor.
7. The display device of claim 5 , wherein the first upper pad is electrically connected to the first lower pad.
8. The display device of claim 5 , further comprising an insulating layer disposed between the first upper pad and the first lower pad,
wherein the first upper pad and the first lower pad are electrically connected to each other through a through hole that passes through the insulating layer.
9. The display device of claim 5 , wherein the second upper pad and the second lower pad constitute a sensing pad, and the first upper pad and the first lower pad constitute a display pad, and
wherein a thickness of the sensing pad and a thickness of the display pad are the same.
10. The display device of claim 9 , wherein the sensing pad comprises a first sensing pad and a second sensing pad spaced apart from each other in one direction in a plan view, and the display pad is disposed between the first sensing pad and the second sensing pad.
11. The display device of claim 9 , wherein the sensing pad and the display pad have the same lamination structure.
12. The display device of claim 1 , wherein the touch sensor is directly disposed on the encapsulation layer.