Display device including asymmetric LED arrangements and method for manufacturing same
A display device includes a display area including pixel areas; a non-display area; and a pixel provided in each pixel area. The pixel may include first to third areas divided from each other in a direction; first and second sub-electrodes provided in each of the first to third areas, and spaced apart from each other; light emitting elements provided in each of the first to third areas, and disposed between the first and second sub-electrodes; a bridge pattern disposed in each of the first to third areas under the first and second sub-electrodes of the corresponding area with an insulating layer disposed therebetween; a first contact electrode provided in each of the first to third areas on the first sub-electrode of the corresponding area; and a second contact electrode provided in each of the first to third areas on the second sub-electrode of the corresponding area.
1 . A display device comprising:
a display area including pixel areas;
a non-display area; and
a pixel provided in each of the pixel areas,
wherein the pixel comprises:
a first area, a second area, and a third area divided from each other in a direction;
a first sub-electrode and a second sub-electrode provided in each of the first to the third areas, and spaced apart from each other;
light emitting elements provided in each of the first to the third areas, and disposed between the first and the second sub-electrodes, the light emitting elements comprising a first end, a second end, and a side portion between the first end and the second end;
a bridge pattern disposed in each of the first to the third areas under the first and the second sub-electrodes of a corresponding one of the first to the third areas with an insulating layer disposed between the bridge pattern and the first and the second sub-electrodes, the insulating layer comprising contact holes each of which is formed to expose a portion of the bridge pattern of each of the first to the third areas;
a first contact electrode provided in each of the first to the third areas on the first sub-electrode of a corresponding one of the first to the third areas;
a second contact electrode provided in each of the first to the third areas on the second sub-electrode of a corresponding one of the first to third areas; and
a first intermediate electrode provided in at least one contact hole formed in an area between the first area and the second area among the contact holes, and electrically connecting the bridge pattern of the first area to the first contact electrode of the second area,
wherein the bridge pattern of the first area and the first contact electrode of the second area are electrically connected to each other, and
wherein the first contact electrode covers the first end and a first portion of the side portion, and the second contact electrode covers the second end and a second portion of the side portion.
2 . The display device according to claim 1 , wherein in each of the first to third areas, one sub-electrode of the first sub-electrode and the second sub-electrode has a circular shape, and a remaining sub-electrode of the first sub-electrode and the second sub-electrode has a shape enclosing the one sub-electrode.
3 . The display device according to claim 2 , wherein the light emitting elements comprise:
first light emitting elements disposed between the first and the second sub-electrodes of the first area;
second light emitting elements disposed between the first and the second sub-electrodes of the second area; and
third light emitting elements disposed between the first and the second sub-electrodes of the third area,
wherein the first to the third light emitting elements each are disposed around the one sub-electrode in a corresponding one of the first to the third areas in a circumferential direction between the one sub-electrode and the remaining sub-electrode.
4 . The display device according to claim 3 , wherein, in a plan view, the bridge pattern of the first area, the bridge pattern of the second area, and the bridge pattern of the third area are spaced apart from each other.
5 . The display device according to claim 4 , wherein
at least a portion of the bridge pattern of the first area extends to the second area, and
at least a portion of the bridge pattern of the second area extends to the third area.
6 . The display device according to claim 5 , wherein the first intermediate electrode is integral with the first contact electrode of the second area.
7 . The display device according to claim 5 , further comprising a second intermediate electrode provided in at least one contact hole formed in an area between the second area and the third area among the contact holes, and electrically connecting the bridge pattern of the second area to the first contact electrode of the third area.
8 . The display device according to claim 7 , wherein the second intermediate electrode is integral with the first contact electrode of the third area.
9 . The display device according to claim 8 , wherein
the bridge pattern of the first area is electrically connected to each of the second sub-electrode of the first area and the first intermediate electrode,
the bridge pattern of the second area is electrically connected to each of the first intermediate electrode, the second sub-electrode of the second area, and the second intermediate electrode, and
the bridge pattern of the third area is electrically connected to each of the second intermediate electrode and the second sub-electrode of the third area.
10 . The display device according to claim 9 , wherein
the first light emitting elements form a first set connected in parallel between the first and the second sub-electrodes of the first area,
the second light emitting elements form a second set connected in parallel between the first and the second sub-electrodes of the second area,
the third light emitting elements form a third set connected in parallel between the first and the second sub-electrodes of the third area,
the first set and the second set are electrically connected through the bridge pattern of the first area and the first intermediate electrode, and
the second set and the third set are electrically connected through the bridge pattern of the second area and the second intermediate electrode.
11 . The display device according to claim 10 , further comprising:
a conductive pattern provided on the bridge pattern of each of the first to the third areas and electrically connected to the bridge pattern;
a first auxiliary electrode disposed between the bridge pattern of the first area and the first intermediate electrode in the area between the first area and the second area; and
a second auxiliary electrode disposed between the bridge pattern of the second area and the second intermediate electrode in the area between the second area and the third area.
12 . The display device according to claim 11 , wherein
the conductive pattern of the first area is disposed between the second sub-electrode of the first area and the bridge pattern of the first area,
the conductive pattern of the second area is disposed between the second sub-electrode of the second area and the bridge pattern of the second area, and
the conductive pattern of the third area is disposed between the second sub-electrode of the third area and the bridge pattern of the third area.
13 . The display device according to claim 12 , wherein the conductive pattern of each of the first to the third areas and the first and the second auxiliary electrodes are provided on a same layer.
14 . A display device comprising:
a display area including pixel areas;
a non-display area; and
a pixel provided in each of the pixel areas,
wherein the pixel comprises:
a first area, a second area, and a third area divided from each other in a direction;
a first sub-electrode and a second sub-electrode provided in each of the first to the third areas, and spaced apart from each other;
light emitting elements provided in each of the first to the third areas, and disposed between the first and the second sub-electrodes;
a first bridge pattern extending from the first area to the second area, and disposed under the second sub-electrodes of each of the first and the second areas with an insulating layer disposed between the first bridge pattern and the first and the second sub-electrodes, the insulating layer comprising contact holes each of which is formed to expose a portion of the first bridge pattern of each of the first to the second areas;
a second bridge pattern provided in the third area and disposed under the second sub-electrode of the third area;
a connection line provided between the first sub-electrode of the second area and the first sub-electrode of the third area, and electrically connecting the first sub-electrode of the second area to the first sub-electrode of the third area; and
a first intermediate electrode electrically connecting the first bridge pattern of the first area to a first contact electrode of the second area, the first intermediate electrode being in at least one contact hole formed in an area between the first area and the second area among the contact holes.
15 . The display device according to claim 14 , wherein the connection line is integral with one first sub-electrode of the first sub-electrode of the second area and the first sub-electrode of the third area.
16 . The display device according to claim 15 , wherein in each of the first to third areas, one sub-electrode of the first sub-electrode and the second sub-electrode has a circular shape, and a remaining sub-electrode of the first sub-electrode and the second sub-electrode has a shape enclosing the one sub-electrode.
17 . The display device according to claim 16 , wherein
the light emitting elements comprise:
first light emitting elements disposed between the first and the second sub-electrodes of the first area;
second light emitting elements disposed between the first and the second sub-electrodes of the second area; and
third light emitting elements disposed between the first and the second sub-electrodes of the third area, and
the first to the third light emitting elements each are disposed around the one sub-electrode in a corresponding one of the first to the third areas in a circumferential direction between the one sub-electrode and the remaining sub-electrode.
18 . The display device according to claim 17 , wherein
the first light emitting elements form a first set connected in parallel between the first and the second sub-electrodes of the first area,
the second light emitting elements form a second set connected in parallel between the first and the second sub-electrodes of the second area,
the third light emitting elements form a third set connected in parallel between the first and the second sub-electrodes of the third area,
the first set and the second set are electrically connected to each other through the first bridge pattern, and the second set and the third set are electrically connected to each other through the connection line.