Display device

1 . A display device comprising:

a substrate including a display area having a plurality of pixels, a pad area having a plurality of pads, and a non-display area including a fan-out area between the display area and the pad area;

a first fan-out line in the fan-out area;

a second fan-out line in the fan-out area and electrically disconnected from the first fan-out line;

first, second, and third insulating layers sequentially arranged on the substrate; and

a first conductive layer between the substrate and the first insulating layer, a second conductive layer between the second insulating layer and the third insulating layer, and a third conductive layer on the third insulating layer,

wherein the first fan-out line is closer to an edge of the non-display area than the second fan-out line,

each of the first and second fan-out lines has a multi-layered stacking structure in which a first sub-line, a second sub-line, and a third sub-line provided in different layers are stacked, and

an amount of overlap between at least two of the first sub-line, the second sub-line, or the third sub-line of the second fan-out line is greater than an amount of overlap between at least two from among the first sub-line, the second sub-line, or the third sub-line of the first fan-out line such that the first fan-out line and the second fan-out line have a same length as each other and the first fan-out line and the second fan-out line have a same resistance.

2 . The display device of claim 1 , wherein

the first sub-line includes the first conductive layer, the second sub-line includes the second conductive layer, and the third sub-line includes the third conductive layer.

3 . The display device of claim 2 , wherein

in each of the first and second fan-out lines, the first sub-line and the second sub-line overlap each other with the first and second insulating layers therebetween, and the second sub-line and the third sub-line overlap each other with the third insulating layer therebetween.

4 . The display device of claim 3 , wherein

in each of the first and second fan-out lines, the first sub-line and the second sub-line are electrically connected through a first contact hole penetrating the first and second insulating layers, and

in each of the first and second fan-out lines, the second sub-line and the third sub-line are electrically connected through a second contact hole penetrating the third insulating layer.

5 . The display device of claim 4 , wherein

in each of the first and second fan-out lines, the second sub-line directly contacts the first sub-line through the first contact hole, and

in each of the first and second fan-out lines, the third sub-line directly contacts the second sub-line through the second contact hole.

6 . The display device of claim 5 , wherein

in each of the first and second fan-out lines, the first contact hole and the second contact hole do not correspond to each other.

7 . The display device of claim 5 , wherein

an overlapping area of the first sub-line and the second sub-line of the second fan-out line is larger than an overlapping area of the first sub-line and the second sub-line of the first fan-out line, and

an overlapping area of the second sub-line and the third sub-line of the second fan-out line is larger than an overlapping area of the second sub-line and the third sub-line of the first fan-out line.

8 . The display device of claim 7 , wherein

the pads include:

at least one first pad electrically connected to the first sub-line of the first fan-out line; and

at least one second pad electrically connected to the second sub-line of the second fan-out line, and

the first and second pads include one of the first conductive layer, the second conductive layer, and the third conductive layer.

9 . The display device of claim 8 , wherein

the first and second pads include the third conductive layer, and are on a same layer as the third sub-line of each of the first and second fan-out lines.

10 . The display device of claim 9 , wherein

the first sub-line of the first fan-out line and the first pad are electrically connected through a third contact hole penetrating the first insulating layer, the second insulating layer, and the third insulating layer; and

the first sub-line of the second fan-out line and the second pad are electrically connected through a fourth contact hole penetrating the first insulating layer, the second insulating layer, and the third insulating layer.

11 . The display device of claim 10 , wherein

the first pad is in direct contact with the first sub-line of the first fan-out line through the third contact hole, and

the second pad is in direct contact with the first sub-line of the second fan-out line through the fourth contact hole.

12 . The display device of claim 8 , wherein

the first and second pads include the second conductive layer, and are on a same layer as the second sub-line of each of the first and second fan-out lines.

13 . The display device of claim 12 , wherein

the first sub-line of the first fan-out line and the first pad are electrically connected through a third contact hole penetrating the first and second insulating layers, and

the first sub-line of the second fan-out line and the second pad are electrically connected through a fourth contact hole penetrating the first and second insulating layers.

14 . The display device of claim 8 , wherein

in the second fan-out line, each of the first sub-line, the second sub-line, and the third sub-line extends in one direction, and

a width of the first sub-line in a direction crossing the one direction is larger than that of the second and third sub-lines.

15 . The display device of claim 14 , wherein

in the second fan-out line, a size of an overlapping area of the first sub-line and the second sub-line is different from a size of an overlapping area of the second sub-line and the third sub-line.

16 . The display device of claim 14 , wherein

in the second fan-out line, the second sub-line completely overlaps the first sub-line with the first and second insulating layers therebetween.

17 . The display device of claim 14 , wherein

in the first fan-out line, the first sub-line, the second sub-line, and the third sub-line extend in an oblique direction inclined to the one direction.

18 . The display device of claim 7 , further comprising:

a driver positioned in the non-display area and electrically connected to each of the first and second fan-out lines; and

data lines electrically connected to the driver to transmit a data signal to each of the pixels, and

wherein the third sub-line of each of the first and second fan-out lines is integral with a corresponding one of the data lines.

19 . A display device comprising:

a substrate including a display area having a plurality of pixels, a pad area having a plurality of pads, and a non-display area including a fan-out area between the display area and the pad area;

a first fan-out line in the fan-out area;

a second fan-out line in the fan-out area and electrically disconnected from the first fan-out line;

first, second, and third insulating layers sequentially arranged on the substrate; and

a first conductive layer between the substrate and the first insulating layer, a second conductive layer between the second insulating layer and the third insulating layer, and a third conductive layer on the third insulating layer,

wherein the first fan-out line is closer to an edge of the non-display area than the second fan-out line,

each of the first and second fan-out lines has a multi-layered stacking structure in which a first sub-line, a second sub-line, and a third sub-line that are in different layers and electrically connected are stacked, and

in each of the first and second fan-out lines, the first sub-line and the second sub-line overlap each other, and the second sub-line and the third sub-line overlap each other

an amount of overlap between at least two of the first sub-line, the second sub-line, or the third sub-line of the second fan-out line is greater than an amount of overlap between at least two from among the first sub-line, the second sub-line, or the third sub-line of the first fan-out line such that the first fan-out line and the second fan-out line have a same resistance.

20 . The display device of claim 19 , wherein

a size of an overlapping area of the first sub-line and the second sub-line is different from a size of an overlapping area of the second sub-line and the third sub-line.