Display device
A display device includes a substrate, a via layer above the substrate, and including a protrusion, an insulating pattern above the protrusion, and having a width that is greater than a width of the protrusion, first and second electrodes above the via layer, and spaced apart from each other with the protrusion and the insulating pattern therebetween, a first insulating layer above the protrusion, the insulating pattern, the first electrode, and the second electrode, a light-emitting element above the first insulating layer, and between the first electrode and the second electrode, a first connection electrode connected to a first end of the light-emitting element, and a second connection electrode connected to a second end of the light-emitting element.
1 . A display device comprising:
a substrate;
a via layer above the substrate, and comprising a protrusion;
an insulating pattern above the protrusion, and having a width that is greater than a width of the protrusion;
first and second electrodes above the via layer, and spaced apart from each other with the protrusion and the insulating pattern therebetween;
a first insulating layer above the protrusion, the insulating pattern, the first electrode, and the second electrode, and covering side surfaces of the protrusion and the insulating pattern;
a light-emitting element above the first insulating layer, and between the first electrode and the second electrode;
a first connection electrode connected to a first end of the light-emitting element; and
a second connection electrode connected to a second end of the light-emitting element.
2 . The display device of claim 1 , wherein the protrusion and the via layer are integral, and
wherein the protrusion protrudes toward the light-emitting element.
3 . The display device of claim 1 , wherein the protrusion and the insulating pattern overlap the light-emitting element.
4 . The display device of claim 1 , wherein one of the side surfaces of the insulating pattern protrudes outwardly more than one of the side surfaces of the protrusion.
5 . The display device of claim 4 , wherein the width of the protrusion and the width of the insulating pattern are less than a distance between the first electrode and the second electrode.
6 . The display device of claim 1 , wherein a thickness of the protrusion and a thickness of the insulating pattern are less than a thickness of the first electrode or the second electrode.
7 . The display device of claim 1 , wherein a sum of a thickness of the protrusion and a thickness of the insulating pattern is equal to a thickness of the first electrode or the second electrode.
8 . The display device of claim 1 , wherein one of the side surfaces of the protrusion is perpendicular to a surface of the via layer.
9 . The display device of claim 1 , wherein one of the side surfaces of the protrusion is inclined, and
wherein a width of an upper surface of the protrusion is less than a width of a lower surface of the protrusion.
10 . The display device of claim 1 , wherein the first insulating layer is in contact with a lower surface of the light-emitting element where the insulating pattern and the light-emitting element overlap each other.
11 . A display device comprising:
a substrate;
a via layer above the substrate, and comprising a protrusion;
first and second electrodes above the via layer, and spaced apart from each other with the protrusion therebetween;
a first insulating layer above the protrusion, the first electrode, and the second electrode;
a light-emitting element above the first insulating layer, and between the first electrode and the second electrode;
a first connection electrode connected to a first end of the light-emitting element; and
a second connection electrode connected to a second end of the light-emitting element,
wherein a thickness of the protrusion is equal to a thickness of the first electrode or the second electrode.
12 . The display device of claim 11 , wherein the protrusion and the via layer are integral, and
wherein the protrusion protrudes toward the light-emitting element.
13 . The display device of claim 11 , wherein an upper surface of the protrusion is in contact with the first insulating layer, and
wherein the first insulating layer is in contact with a lower surface of the light-emitting element.
14 . The display device of claim 11 , wherein a width of the protrusion is less than a distance between the first electrode and the second electrode.
15 . The display device of claim 11 , further comprising a second insulating layer above the light-emitting element,
wherein the first connection electrode and the second connection electrode are spaced apart from each other with the second insulating layer therebetween.
16 . A method of fabricating a display device, the method comprising:
forming a via layer above a substrate;
forming an insulating pattern above the via layer;
forming a protrusion under the insulating pattern by etching the via layer;
forming first and second electrodes spaced apart from each other above the via layer;
forming a first insulating layer above the insulating pattern, the first electrode, and the second electrode;
aligning a light-emitting element above the first insulating layer between the first electrode and the second electrode;
forming a first connection electrode connected to a first end of the light-emitting element; and
forming a second connection electrode connected to a second end of the light-emitting element.
17 . The method of claim 16 , wherein the forming the protrusion comprises reducing a thickness of the via layer by using the insulating pattern as a hard mask.
18 . The method of claim 16 , wherein the protrusion is over-etched underneath the insulating pattern to be formed in an under-cut shape.
19 . The method of claim 16 , wherein a sum of a thickness of the protrusion and a thickness of the insulating pattern is equal to a thickness of the first electrode or the second electrode.
20 . The method of claim 16 , wherein the first insulating layer is in contact with a lower surface of the light-emitting element.