Display device including connection line connected to signal line

1 . A display device comprising:

a substrate comprising a display area comprising a plurality of pixels, and a non-display area at an outer periphery of the display area, the non-display area comprising a first non-display area and a second non-display area;

a plurality of signal lines extending from the non-display area in a first direction at the display area on the substrate; and

at least one connection line extending from the first non-display area to the second non-display area by passing through the display area on the substrate,

wherein the at least one connection line is connected to any one signal line from among the plurality of signal lines at the second non-display area, and

wherein at least a portion of the at least one connection line extends in a second direction crossing the first direction at the display area to overlap with at least one of the plurality of signal lines extending in the first direction at the display area.

2 . The display device of claim 1 , wherein:

the at least one connection line comprises a plurality of connection lines; and

the plurality of connection lines have different lengths from one another.

3 . The display device of claim 2 , wherein:

the second non-display area is adjacent to the first non-display area; and

a length of a first connection line from among the plurality of connection lines is longer than a length of a second connection line from among the plurality of connection lines.

4 . The display device of claim 2 , wherein the plurality of connection lines are spaced from each other, and do not cross each other at the display area.

5 . The display device of claim 1 , wherein:

the at least one connection line comprises a first portion extending in the first direction; and

the first portion overlaps with one signal line from among the signal lines in a thickness direction of the substrate.

6 . The display device of claim 5 , wherein the at least one connection line further comprises a second portion extending from one end of the first portion in the second direction, the second portion including the portion of the at least one connection line overlapping with the at least one of the plurality of signal lines at the display area.

7 . The display device of claim 6 , wherein:

the at least one connection line further comprises a third portion extending from one end of the second portion in the first direction; and

the third portion is spaced from the first portion.

8 . The display device of claim 1 , wherein:

the first non-display area comprises a corner protruding from an edge of the display area;

one end of a first signal line from among the signal lines is located at the corner;

a second signal line from among the signal lines is spaced from the corner; and the first signal line is longer than the second signal line.

9 . The display device of claim 1 , further comprising an insulating layer configured to insulate between the at least one connection line and the signal lines,

wherein the second non-display area has a contact hole penetrating the insulating layer to expose the any one signal line from among the signal lines, and

the at least one connection line is directly connected to the any one signal line from among the signal lines through the contact hole.

10 . The display device of claim 1 , further comprising a plurality of drive lines sequentially located along the second direction on a drive area of the substrate,

wherein the drive area is adjacent to the first non-display area, and is spaced from the display area,

at least one drive line from among the drive lines is directly connected to the at least one connection line, and

other remaining drive lines from among the drive lines are directly connected to at least one of the signal lines.

11 . The display device of claim 10 , further comprising:

a first insulating layer and a second insulating layer sequentially located between the at least one drive line and the other remaining drive lines; and

a power supply voltage line between the first insulating layer and the second insulating layer.

12 . The display device of claim 10 , further comprising:

an insulating layer on the drive lines on the substrate; and

a power supply voltage line on the insulating layer.

13 . The display device of claim 1 , further comprising power supply voltage lines between the signal lines on the substrate,

wherein the power supply voltage lines are electrically connected to each other, wherein the at least one connection line comprises a first portion extending in the first direction, and

wherein the first portion overlaps with one power supply voltage line from among the power supply voltage lines in a thickness direction of the substrate.

14 . The display device of claim 1 , wherein the at least one connection line comprises a plurality of connection lines, and

wherein the plurality of connection lines have the same length as each other.

15 . The display device of claim 14 , wherein:

the second non-display area is spaced from the first non-display area; and

the plurality of connection lines extend across the display area.

16 . The display device of claim 1 , further comprising a plurality of drive lines sequentially located along the second direction on a drive area of the substrate,

wherein the drive area is adjacent to the first non-display area, is spaced from the display area, and comprises pads connected to external devices,

wherein at least one drive line from among the drive lines is directly connected to the at least one connection line, and

wherein other remaining drive lines from among the drive lines are directly connected to at least one of the signal lines.

17 . The display device of claim 16 , wherein:

the at least one drive line is at a layer different from a layer of the other remaining drive lines to be insulated from the other remaining drive lines; and

the at least one drive line is electrically connected to the at least one connection line through a contact hole in the drive area.

18 . A display device, comprising:

a substrate;

a display area comprising a plurality of pixels;

a non-display area at an outer periphery of the display area;

a driving element layer on the substrate, and comprising a transistor at the display area;

a first insulating layer on the driving element layer;

a first conductive layer on the first insulating layer, and comprising a signal line electrically connected to a first electrode of the transistor;

a second insulating layer on the first conductive layer; and

a second conductive layer on the second insulating layer, and comprising a connection line electrically connected to the signal line,

wherein the signal line and the connection line are each disposed at both the display area and the non-display area, and

wherein the connection line is directly connected to the signal line through a contact hole penetrating the second insulating layer at the non-display area.

19 . A display device, comprising:

a substrate;

a display area;

a non-display area;

a driving element layer on the substrate, and comprising a transistor at the display area;

a first insulating layer on the driving element layer;

a first conductive layer on the first insulating layer, and comprising a signal line extending in a first direction, and electrically connected to a first electrode of the transistor;

a second insulating layer on the first conductive layer; and

a second conductive layer on the second insulating layer, and comprising a connection line electrically connected to the signal line,

wherein a portion of the connection line extending in the first direction is directly connected to the signal line through a contact hole penetrating the second insulating layer at the non-display area, and

wherein the portion of the connection line extending in the first direction extends to the display area to overlap with the signal line at the display area.

20 . The display device of claim 18 , wherein:

the first conductive layer further comprises a first power supply voltage line electrically connected to a second electrode of the transistor; and

the connection line overlaps with the first power supply voltage line at the display area.