Display device

1. A display device, comprising:

a substrate that includes a display area and a peripheral area;

a transistor in the display area;

a first electrode electrically connected to the transistor;

a second electrode that overlaps the first electrode;

a light emitting layer that is between the first electrode and the second electrode;

an organic insulation layer that is between the first electrode and the transistor and overlaps at least a part of the peripheral area; and

a valley penetrating the organic insulation layer and overlapping the peripheral area, the valley being wider at a top of the organic insulation layer than at a bottom of the organic insulation layer, the bottom of the valley directly contacting an electrically insulative layer, wherein

the transistor includes a semiconductor layer on the substrate, a gate electrode overlapping the semiconductor layer, and a source electrode and a drain electrode that are connected to the semiconductor layer, and

a first thickness of the organic insulation layer disposed in the display area is greater than a second thickness of the organic insulation layer disposed in the peripheral area.

2. The display device as claimed in claim 1 , further comprising:

a first connection member that is between the drain electrode and the first electrode, wherein

the organic insulation layer overlaps the first connection member, and

the organic insulation layer directly contacts the first connection member.

3. The display device as claimed in claim 1 , wherein another insulation layer at least partially penetrates the valley.

4. The display device as claimed in claim 3 , wherein the another insulation layer is organic.

5. The display device as claimed in claim 3 , wherein the another insulation layer includes an organic insulation layer and an inorganic insulation layer.

6. A display device, comprising:

substrate that includes a display area and a peripheral area;

a transistor in the display area;

a first electrode electrically connected to the transistor;

a second electrode that overlaps the first electrode;

a light emitting layer that is between the first electrode and the second electrode; and

an organic insulation layer that is between the first electrode and the transistor and overlaps at least a part of the peripheral area,

a valley penetrating the organic insulation layer and overlapping the peripheral area, wherein

the transistor includes a semiconductor liver on the substrate, a gate electrode overlapping the semiconductor layer, and a source electrode and a drain electrode that are connected to the semiconductor layer,

a first thickness of the oceanic insulation layer disposed in the display area is greater than a second thickness of the organic insulation layer disposed in the peripheral area,

the display device further comprises an encapsulation layer that is on the second electrode and overlaps the display area and the peripheral area, and

the encapsulation layer includes:

a first inorganic layer and a second inorganic layer; and

an organic layer between the first inorganic layer and the second inorganic layer.

7. The display device as claimed in claim 6 , wherein the valley overlaps the organic layer of the encapsulation layer.

8. The display device as claimed in claim 6 , further comprising:

touch lines disposed on the encapsulation layer that overlap the peripheral area, wherein

at least one of the touch lines overlap the valley.

9. The display device as claimed in claim 6 , further comprising:

a metal layer disposed on the same layer as the first electrode, wherein

the metal layer is disposed on a side surface of the valley.

10. The display device as claimed in claim 9 , wherein the metal layer directly contacts the first inorganic layer of encapsulation layer.

11. The display device as claimed in claim 6 , wherein a portion of the encapsulation layer at least partially penetrates the valley.

12. The display device as claimed in claim 11 , wherein the organic layer of the encapsulation layer at least partially penetrates the valley.

13. The display device as claimed in claim 6 , further comprising a valley penetrating the organic insulation layer and overlapping the peripheral area, the valley being wider at a top of the organic insulation layer than at a bottom of the organic insulation layer, the bottom of the valley directly contacting an electrically insulative layer.

14. A display device, comprising:

a substrate that includes a display area and a peripheral area;

a transistor in the display area;

a first electrode electrically connected to the transistor;

a second electrode that overlaps the first electrode;

a light emitting layer that is between the first electrode and the second electrode; and

an organic insulation layer that is between the first electrode and the transistor and overlaps at least a part of the peripheral area, wherein

the transistor includes a semiconductor layer on the substrate, a gate electrode overlapping the semiconductor layer, and a source electrode and a drain electrode that are connected to the semiconductor layer,

a first connection member is disposed between the drain electrode and the first electrode,

a first thickness of the organic insulation layer disposed in the display area is greater than a second thickness of the organic insulation layer disposed in the peripheral area,

the organic insulation layer overlaps the first connection member,

the organic insulation layer directly contacts the first connection member, and

the organic insulation layer includes:

a first organic insulation layer that is between the source electrode and the first connection member and between the drain electrode and the first connection member; and

a second organic insulation layer that is between the first connection member and the first electrode.