Display device

1 . A display device comprising:

a substrate including a display area in which a plurality of subpixels are disposed and a non-display area surrounding the display area;

an external line and a first sub-diode, which are disposed in the non-display area; and

a light emitting element formed in each of the plurality of subpixels,

wherein the first sub-diode includes a first sub-electrode, an organic layer and a second sub-electrode,

the light emitting element includes a first electrode, a light emitting layer and a second electrode,

the first sub-electrode is connected to the external line, and

the second sub-electrode is connected to the second electrode.

2 . The display device of claim 1 , wherein the organic layer includes a first organic layer and a second organic layer disposed on the first organic layer,

the first organic layer includes at least one of a hole injection layer, a hole transport layer and a light emitting material layer, and

the second organic layer includes an electron transport layer.

3 . The display device of claim 2 , wherein the light emitting layer includes a first light emitting layer and a second light emitting layer disposed on the first light emitting layer,

the first light emitting layer has a same structure as the first organic layer, and

the second light emitting layer has a same structure as the second organic layer.

4 . The display device of claim 2 , wherein the light emitting layer includes a first light emitting layer and a second light emitting layer disposed on the first light emitting layer,

the first light emitting layer has a structure different from the first organic layer, and

the second light emitting layer has a same structure as the second organic layer.

5 . The display device of claim 2 , wherein the light emitting layer includes a first light emitting layer and a second light emitting layer disposed on the first light emitting layer,

the first organic layer and the first light emitting layer are formed by a solution process, and

the second organic layer and the second light emitting layer are formed by a deposition process.

6 . The display device of claim 5 , further comprising a bank surrounding each of the first organic layer and the first light emitting layer,

wherein each of the first organic layer and the first light emitting layer has a round shape on a side adjacent to the bank, and

each of the second organic layer and the second light emitting layer is formed along a shape of an upper surface of the first organic layer and the first light emitting layer.

7 . The display device of claim 2 , further comprising a second sub-diode formed in the non-display area,

wherein the second sub-diode includes a first sub-electrode, an organic layer and a second sub-electrode,

the first sub-electrode of the second sub-diode is connected to the external line, and

the second sub-electrodes of the first and second sub-diodes are connected to each other.

8 . The display device of claim 7 , wherein the first organic layers of the first and second sub-diodes have structures different from each other, and

the second organic layers of the first and second sub-diodes have a same structure.

9 . The display device of claim 7 , wherein the first organic layers of the first and second sub-diodes have a same structure, and the second organic layers of the first and second sub-diodes have a same structure.

10 . The display device of claim 1 , wherein the light emitting layer and the organic layer are continuously formed in the display area and the non-display area.

11 . The display device of claim 1 , wherein the external line is disposed to surround outside of the non-display area, and is formed in a mesh shape.

12 . The display device of claim 11 , wherein the external line is connected to a ground voltage.