Display device and method of fabricating the same
A display device includes light-emitting elements arranged on a circuit substrate, extending in a thickness direction of the circuit substrate, and including a first light-emitting element configured to emit a first light, and a second light-emitting element configured to emit a second light, and having a width that is less than a width of the first light-emitting element, a common electrode layer above the light-emitting elements, and a connection electrode layer between the first light-emitting element and the common electrode layer.
1 . A display device comprising:
light-emitting elements arranged on a circuit substrate, extending in a thickness direction of the circuit substrate, and comprising a first light-emitting element configured to emit a first light, and a second light-emitting element configured to emit a second light, and having a width that is less than a width of the first light-emitting element;
a common electrode layer above the light-emitting elements; and
a connection electrode layer between the first light-emitting element and the common electrode layer,
wherein the first light-emitting element partially overlaps the second light-emitting element in the thickness direction.
2 . The display device of claim 1 , wherein the first light-emitting element is on a different layer from the second light-emitting element.
3 . The display device of claim 2 , wherein the light-emitting elements further comprise a third light-emitting element configured to emit a third light, and on a different layer from the first light-emitting element.
4 . The display device of claim 3 , wherein the third light-emitting element is on a same layer as the second light-emitting element.
5 . The display device of claim 4 , wherein the width of the first light-emitting element is greater than a width of the third light-emitting element.
6 . The display device of claim 4 , wherein portions of the first light-emitting element respectively overlap the second light-emitting element and the third light-emitting element in a plan view.
7 . The display device of claim 2 , wherein the connection electrode layer does not overlap with the second light-emitting element.
8 . The display device of claim 2 , wherein the connection electrode layer comprises a same material as the common electrode layer.
9 . The display device of claim 2 , wherein a width of the connection electrode layer is less than the width of the first light-emitting element.
10 . The display device of claim 1 , wherein the light-emitting elements comprise:
a first semiconductor layer on the circuit substrate;
an active layer on the first semiconductor layer; and
a second semiconductor layer on the active layer.
11 . The display device of claim 10 , wherein the light-emitting elements further comprise an electron-blocking layer between the first semiconductor layer and the active layer, and a superlattice layer between the active layer and the second semiconductor layer.
12 . The display device of claim 11 , wherein the circuit substrate further comprises pixel electrodes, and
wherein the first semiconductor layer of the light-emitting elements is connected to a respective one of the pixel electrodes.
13 . The display device of claim 12 , further comprising a connection electrode between the first semiconductor layers of the light-emitting elements and the pixel electrodes.
14 . The display device of claim 13 , wherein a length of the connection electrode of the first light-emitting element is less than a length of the connection electrode of the second light-emitting element.
15 . The display device of claim 10 , wherein the connection electrode layer comprises a same material as the second semiconductor layer.