Display device
A display device includes a substrate including a display area and a non-display area configured to surround the display area, an inorganic insulating layer on the substrate, a metal layer on the inorganic insulating layer, a dam structure on the metal layer in the non-display area and including a first dam and a second dam positioned to be closer to an outer side of the substrate than be the first dam and a sealing part configured to cover a part of the display area and a part of the non-display area and cover a surface of the dam structure, wherein the metal layer is patterned between the first dam and the second dam.
1 . A display device comprising:
a substrate including a display area and a non-display area surrounding the display area;
an inorganic insulating layer disposed on the substrate;
a metal layer disposed on the inorganic insulating layer;
a dam structure disposed on the metal layer in the non-display area and including a first dam and a second dam positioned to be closer to an outer side of the substrate than the first dam; and
a sealing part covering a part of the display area and a part of the non-display area and covering a surface of the dam structure,
wherein the metal layer is patterned between the first dam and the second dam and includes a plurality of holes disposed between the first dam and the second dam, and
wherein the sealing part is in contact with the inorganic insulating layer through the plurality of holes.
2 . The display device of claim 1 , wherein each of the plurality of holes has a width equal to an interval between the first dam and the second dam.
3 . The display device of claim 1 , wherein each of the plurality of holes is randomly disposed between the first dam and the second dam.
4 . The display device of claim 1 , wherein each of the plurality of holes has a width smaller than an interval between the first dam and the second dam.
5 . The display device of claim 4 , wherein two opposite ends of each of the plurality of holes are respectively spaced apart from the first dam and the second dam.
6 . The display device of claim 4 , wherein each of the plurality of holes has one of a polygonal shape, a circular shape, and an elliptical shape.
7 . The display device of claim 1 , wherein at least one of the first and second dams includes concave-convex patterns disposed on one or more side surface of two opposite surfaces thereof.
8 . The display device of claim 7 , wherein the first dam comprises a first inner concave-convex pattern disposed on an inner surface thereof adjacent to the display area.
9 . The display device of claim 7 , wherein the first dam comprises a first inner concave-convex pattern and a first outer concave-convex pattern respectively disposed on an inner surface adjacent to the display area and an outer surface thereof opposite to the inner surface, and
the first inner concave-convex pattern and the first outer concave-convex pattern are disposed to correspond to each other.
10 . The display device of claim 9 , wherein the second dam comprises a second inner concave-convex pattern disposed on an inner surface thereof adjacent to the first dam, and
the second inner concave-convex pattern is disposed to correspond to the first outer concave-convex pattern.
11 . The display device of claim 7 , wherein the first dam comprises a first inner concave-convex pattern and a first outer concave-convex pattern respectively disposed on an inner surface adjacent to the display area and an outer surface thereof opposite to the inner surface, and
the first inner concave-convex pattern and the first outer concave-convex pattern are disposed in a zigzag manner.
12 . The display device of claim 11 , wherein the second dam comprises a second inner concave-convex pattern disposed on an inner surface thereof adjacent to the first dam, and
the second inner concave-convex pattern and the first outer concave-convex pattern are disposed in a zigzag manner.
13 . The display device of claim 7 , further comprising:
a spacer disposed in the display area; and
an additional spacer disposed on the first dam and the second dam and made of a same material as the spacer,
wherein a cross-sectional shape of the additional spacer has an area that decreases upward in a plan view.
14 . The display device of claim 7 , wherein the plurality of holes and the concave-convex pattern are disposed only in a region corresponding to a corner of the display area.
15 . The display device of claim 14 , wherein a corner of each of the first dam and the second dam is rounded.
16 . The display device of claim 7 , wherein the concave-convex pattern includes at least one protruding portion and at least one concave portion having one of a polygonal shape, a circular shape, and an elliptical shape.
17 . The display device of claim 7 , wherein the sealing part is disposed to fill a concave portion of the concave-convex pattern.