Display device having reflow prevention structures
A display device includes a substrate having a display area and a non-display area surrounding the display area, a driving element disposed on the substrate in the display area, a light emitting element disposed on the driving element, and a dam disposed on the substrate in the non-display area and surrounding the display area, and where the dam includes a first organic layer, a first reflow prevention patterns disposed on both edges of the first organic layer and including a material different from a material of the first organic layer, and a second organic layer disposed on the first organic layer and contacting the first organic layer exposed by the first reflow prevention patterns.
1 . A display device comprising:
a substrate having a display area and a non-display area surrounding the display area;
a driving element disposed on the substrate in the display area;
a light emitting element disposed on the driving element; and
a dam disposed on the substrate in the non-display area and surrounding the display area, and
wherein the dam comprises:
a first organic layer;
a first reflow prevention patterns disposed on both edges of the first organic layer and comprising a material different from a material of the first organic layer; and
a second organic layer disposed on the first organic layer and contacting the first organic layer exposed by the first reflow prevention patterns and wherein an inclination angle of a side surface of the second organic layer is greater than the inclination angle of a side surface of the first organic layer.
2 . The display device of claim 1 , wherein the first reflow prevention patterns comprise an inorganic material.
3 . The display device of claim 1 , wherein the first reflow prevention patterns comprise a metal.
4 . The display device of claim 1 , wherein the dam further comprises a first adhesive pattern disposed between the first reflow prevention patterns.
5 . The display device of claim 4 , wherein the first reflow prevention patterns and the first adhesive pattern comprise a same material.
6 . The display device of claim 4 , wherein the first adhesive pattern has an inverse tapered shape.
7 . The display device of claim 1 , further comprising a source layer disposed between the driving element and the light emitting element, and
wherein the source layer and the first reflow prevention patterns comprise a same material.
8 . The display device of claim 1 , wherein the dam further comprises:
a second reflow prevention patterns disposed on both edges of the second organic layer and comprising a material different from a material of the second organic layer; and
a third organic layer disposed on the second organic layer and contacting the second organic layer exposed by the second reflow prevention patterns.
9 . The display device of claim 8 , wherein the light emitting element comprises:
a pixel electrode;
an emission layer disposed on the pixel electrode; and
a common electrode disposed on the emission layer, and
wherein the pixel electrode and the second reflow prevention patterns comprise a same material.
10 . The display device of claim 8 , wherein the dam further comprises a second adhesive pattern disposed between the second reflow prevention patterns.
11 . The display device of claim 10 , wherein the second reflow prevention patterns and the second adhesive pattern comprise a same material.
12 . The display device of claim 10 , wherein the second adhesive pattern has an inverse tapered shape.
13 . The display device of claim 1 , wherein the second organic layer does not cover a side surface of the first organic layer.
14 . The display device of claim 1 , wherein a width of the second organic layer is less than a width of the first organic layer.
15 . The display device of claim 1 , wherein the dam further comprises a spacer disposed on the second organic layer.
16 . A display device comprising:
a substrate having a display area and a non-display area surrounding the display area;
a driving element disposed on the substrate in the display area;
a light emitting element disposed on the driving element;
a source layer disposed between the driving element and the light emitting element; and
a dam disposed on the substrate in the non-display area and surrounding the display area, and
wherein the dam comprises:
a first organic layer;
a first reflow prevention patterns disposed on both edges of the first organic layer and comprising a same material as the source layer;
a first adhesive pattern disposed between the first reflow prevention patterns; and
a second organic layer disposed on the first organic layer and contacting the first organic layer exposed by the first reflow prevention patterns and wherein an inclination angle of a side surface of the second organic layer is greater than the inclination angle of a side surface of the first organic layer.
17 . The display device of claim 16 , wherein the first reflow prevention patterns and the first adhesive pattern comprise a same material.
18 . The display device of claim 16 , wherein the dam further comprises:
a second reflow prevention patterns disposed on both edges of the second organic layer and comprising a material different from a material of the second organic layer;
a second adhesive pattern disposed between the second reflow prevention patterns; and
a third organic layer disposed on the second organic layer and contacting the second organic layer exposed by the second reflow prevention patterns.
19 . The display device of claim 18 , wherein the second reflow prevention patterns and the second adhesive pattern comprise a same material.