Display device
A display device capable of reducing a non-display area includes a substrate hole surrounded by light emitting elements, and a moisture penetration preventing layer disposed between an inner dam surrounded by the light emitting elements and the substrate hole. Accordingly, it is possible to prevent damage to light emitting stacks caused by external moisture or oxygen. Since the substrate hole is disposed within an active area, a reduction in non-display area is achieved.
1. A display device comprising:
a plurality of light emitting elements disposed on a substrate, each of the light emitting elements comprising a respective light emitting stack;
a substrate hole passing through the substrate while being surrounded by the light emitting elements;
an inner dam disposed between the substrate hole and the light emitting elements; and
a moisture penetration preventing layer disposed only between the inner dam and the substrate hole while covering an outer side surface of the light emitting stacks.
2. The display device according to claim 1 , further comprising:
a blocking groove disposed between the inner dam and the substrate hole while overlapping with the moisture penetration preventing layer, the blocking groove having a reversed taper shape.
3. The display device according to claim 1 , further comprising:
a through hole disposed to surround the substrate hole while passing through the light emitting stacks,
wherein the moisture penetration preventing layer is disposed on side surfaces of the light emitting stacks exposed through the through hole.
4. The display device according to claim 1 , further comprising:
a black layer disposed to cover upper and side surfaces of the moisture penetration preventing layer.
5. The display device according to claim 1 , wherein the moisture penetration preventing layer is formed to have a single-layer structure or a multilayer structure, using at least one of W, Mo, Co, Ag, Al, Cu, MoTi, Ta, or Ti.
6. The display device according to claim 1 , further comprising:
a side cover layer made of a frit-based sealant, the side cover layer covering the moisture penetration preventing layer.
7. The display device according to claim 1 , further comprising:
an encapsulation unit disposed on the light emitting elements; and
a touch sensor disposed on the encapsulation unit, the touch sensor comprising a touch electrode and a bridge.
8. The display device according to claim 7 , wherein the moisture penetration preventing layer is made of the same material as at least one of the touch electrode or the bridge, and is disposed on a same plane as the at least one of the touch electrode or the bridge.
9. The display device according to claim 7 , further comprising:
a touch buffer film disposed between the touch sensor and the encapsulation unit; and
a touch insulating film disposed between the touch electrode and the bridge.
10. The display device according to claim 9 , further comprising:
a side cover layer disposed on the moisture penetration preventing layer while extending from at least one of the touch buffer film or the touch insulating film.
11. The display device according to claim 9 , further comprising:
a bank disposed without covering anode electrodes of the light emitting elements such that the anode electrodes are exposed;
a black matrix disposed over the touch sensor while overlapping with the bank; and
a black layer disposed on upper and side surfaces of the moisture penetration preventing layer.
12. The display device according to claim 11 , wherein the black layer is made of the same material as the black matrix.
13. The display device according to claim 11 , wherein the black layer contacts the moisture penetration preventing layer.
14. The display device according to claim 11 , wherein at least one of the touch insulating film or the touch buffer film is disposed between the black layer and the moisture penetration preventing layer.
15. The display device according to claim 1 , further comprising:
a camera module disposed within the substrate hole.
16. The display device according to claim 1 , wherein the moisture penetration preventing layer covers the outer side surface of the light emitting stacks exposed through the substrate hole.