Display apparatus and manufacturing method thereof

1. A display apparatus comprising:

a substrate comprising a display area and a pad area located outside the display area;

a plurality of data lines in the display area;

a plurality of connection wires in the display area, wherein the plurality of connection wires is connected to the plurality of data lines and transfers data signals from the pad area to the plurality of data lines; and

an insulating film covering the plurality of connection wires,

wherein each of the plurality of connection wires comprises a plurality of branches that diverge from a body of each of the plurality of connection wires,

wherein the insulating film comprises a protrusion overlapping a gap between adjacent branches of the plurality of branches,

wherein the adjacent branches of the plurality of branches are electrically isolated from each other.

2. The display apparatus of claim 1 , wherein:

the plurality of connection wires is arranged in parallel,

wherein the adjacent branches comprise distal ends that extend toward each other, and

wherein the gap is a distance between the distal ends of the adjacent branches spaced apart from each other.

3. The display apparatus of claim 1 , wherein the plurality of data lines and the plurality of connection wires are arranged on different layers from each other.

4. The display apparatus of claim 1 , wherein:

the display area includes a first region and a second region that are adjacent to each other; and

the plurality of connection wires is arranged on the first region of the display area;

wherein a plurality of dummy wires is arranged on a same layer as the plurality of connection wires on the second region of the display area.

5. The display apparatus of claim 4 , wherein:

the plurality of connection wires comprises a U-shape; and

the plurality of dummy wires comprises a straight-line shape.

6. The display apparatus of claim 1 , further comprising a metal layer covering the protrusion.

7. The display apparatus of claim 1 , wherein:

a thickness of a region of the insulating film that includes the protrusion is about 1.5 times to about 2.5 times greater than a thickness of a region of the insulating film that does not include the protrusion.

8. The display apparatus of claim 1 , wherein:

the gap between the adjacement branches of the plurality of branches is arranged in a regular pattern,

wherein the protrusion overlapping the gap is arranged in the regular pattern.

9. The display apparatus of claim 1 , wherein:

the gap between the adjacement branches of the plurality of branches is arranged in an irregular pattern,

wherein the protrusion overlapping the gap is arranged in the irregular pattern.

10. The display apparatus of claim 1 , wherein the protrusion is further arranged on a portion of the insulating film that covers the body of the connection wire without the gap.

11. A display apparatus comprising:

a substrate comprising a display area and a pad area located outside the display area;

a plurality of data lines in the display area on a first layer;

a plurality of connection wires in the display area on a second layer, the plurality of connection wires including:

a first area in which the connection wires extend in a first direction and include branches that extend in a second direction that is perpendicular to the first direction; and

a second area in which the connection wires extend in the second direction and include branches that extend in the first direction; and

an insulating film covering the plurality of connection wires,

wherein the insulating film comprises a protrusion between adjacent branches of the plurality of connection wires.