Display device
A includes a substrate, a first electrode and a second electrode on the substrate and spaced from each other, a light emitting element between the first electrode and the second electrode, an insulating pattern on the light emitting element, a first contact electrode on one side of the insulating pattern and contacting the first electrode and one end of the light emitting element, and a second contact electrode on another side of the insulating pattern and contacting the second electrode and an other end of the light emitting element, and a surface of the insulating pattern includes a concave-convex pattern.
1 . A display device comprising:
a substrate;
a first electrode and a second electrode on the substrate and spaced from each other;
a light emitting element between the first electrode and the second electrode;
an insulating pattern on the light emitting element;
a first contact electrode on one side of the insulating pattern and contacting the first electrode and one end of the light emitting element; and
a second contact electrode on another side of the insulating pattern and contacting the second electrode and an other end of the light emitting element,
wherein a surface of the insulating pattern comprises a concave-convex pattern, and
wherein a conductive material layer is in depression portions of the concave-convex pattern.
2 . The display device according to claim 1 , wherein the first contact electrode and the second contact electrode comprise same material.
3 . The display device according to claim 1 , wherein the insulating pattern exposes the one end of the light emitting element and the other end of the light emitting element.
4 . The display device according to claim 1 , wherein the first contact electrode and the second contact electrode are spaced from each other with the insulating pattern interposed therebetween.
5 . The display device according to claim 1 , further comprising an insulating layer covering the first contact electrode and the second contact electrode.
6 . The display device according to claim 5 , wherein the insulating layer covers the concave-convex pattern.
7 . The display device according to claim 1 , wherein the concave-convex pattern has a plurality of protrusion portions and the depression portions.
8 . The display device according to claim 7 , wherein the conductive material layer comprises same material as the first contact electrode and the second contact electrode.
9 . The display device according to claim 7 , wherein a thickness of the conductive material layer is less than a thickness of the protrusion portions.
10 . A display device comprising:
a substrate;
a first electrode and a second electrode on the substrate and spaced from each other;
a light emitting element between the first electrode and the second electrode;
an insulating pattern on the light emitting element;
a first contact electrode on one side of the insulating pattern and contacting the first electrode and one end of the light emitting element; and
a second contact electrode on another side of the insulating pattern and contacting the second electrode and an other end of the light emitting element,
wherein a surface of the insulating pattern comprises a concave-convex pattern, and
wherein a surface roughness of a side surface of the insulating pattern is greater than a surface roughness of an upper surface of the insulating pattern.
11 . The display device according to claim 10 , further comprising
a conductive pattern on the upper surface of the insulating pattern.
12 . The display device according to claim 11 , wherein the conductive pattern is located between the first contact electrode and the second contact electrode.
13 . The display device according to claim 11 , wherein the conductive pattern is electrically separated from the first contact electrode and the second contact electrode.
14 . The display device according to claim 11 , wherein the conductive pattern comprises same material as the first contact electrode and the second contact electrode.
15 . The display device according to claim 11 , wherein a thickness of the conductive pattern is substantially same as a thickness of the first contact electrode and the second contact electrode.
16 . The display device according to claim 15 , further comprising
an insulating layer on the first contact electrode and the second contact electrode.
17 . The display device according to claim 16 , wherein the insulating layer covers the side surface of the insulating pattern.
18 . The display device according to claim 16 , wherein the insulating layer is not in contact with the upper surface of the insulating pattern.
19 . The display device according to claim 16 ,
wherein the conductive pattern is between the upper surface of the insulating pattern and the insulating layer.