Display device with offset lower electrodes of different lengths
A display device includes a first electrode and a second electrode disposed on a substrate, the first and second electrodes being spaced apart from each other with a spaced area disposed between the first and second electrodes, an insulating layer disposed on the first electrode and the second electrode, the insulating layer filling the spaced area, and a light emitting element disposed on the insulating layer and having a first end disposed on the first electrode and a second end opposite to the first end. The insulating layer includes a first opening adjacent to the first end and exposing the insulating layer, and the spaced area is adjacent to the second end of the light emitting element.
1 . A display device comprising:
a first electrode and a second electrode disposed on a substrate, the first electrode and the second electrode being spaced apart from each other with a spaced area disposed between the first electrode and the second electrode;
an insulating layer disposed on the first electrode and the second electrode, the insulating layer filling the spaced area; and
a light emitting element disposed on the insulating layer and having a first end disposed on the first electrode and a second end opposite to the first end, wherein
the insulating layer comprises a first opening adjacent to the first end of the light emitting element and exposing the insulating layer,
the spaced area is disposed to be adjacent to the second end of the light emitting element,
wherein the first opening overlaps a first end of the light emitting element in a thickness direction, the first end of the light emitting element is a side surface of the light emitting element that is perpendicular to a longitudinal direction of the light emitting element, and
wherein the first electrode overlaps at least a center point of the light emitting element in a thickness direction of the substrate.
2 . The display device of claim 1 , further comprising:
a floating electrode disposed between the substrate and the first electrode in a thickness direction of the substrate and electrically floated.
3 . The display device of claim 2 , wherein the floating electrode overlaps the spaced area in the thickness direction of the substrate.
4 . The display device of claim 1 , wherein
the light emitting element comprises:
an N-type semiconductor layer,
a P-type semiconductor layer, and
a light emitting layer disposed between the N-type semiconductor layer and the P-type semiconductor layer, and
the N-type semiconductor layer is disposed on the second end of the light emitting element.
5 . The display device of claim 1 , wherein the second end of the light emitting element does not overlap the second electrode in a thickness direction of the substrate.
6 . The display device of claim 5 , wherein the second end of the light emitting element overlaps the first electrode in the thickness direction of the substrate.
7 . The display device of claim 5 , wherein the second end of the light emitting element overlaps the spaced area in the thickness direction of the substrate.
8 . The display device of claim 1 , wherein the first opening exposes an upper surface of the insulating layer.
9 . The display device of claim 1 , wherein the first opening exposes a side of the insulating layer and the first electrode.
10 . The display device of claim 1 , further comprising:
a first bank pattern disposed between the substrate and the first electrode; and
a second bank pattern disposed between the substrate and the second electrode, wherein
the spaced area exposes a portion of the second bank pattern, and
the insulating layer is in contact with the second bank pattern.
11 . The display device of claim 10 , wherein an end of the second electrode is disposed on the second bank pattern.
12 . The display device of claim 1 , further comprising:
a first connection electrode that is in electrical contact with the first end of the light emitting element on the insulating layer; and
a second connection electrode that is in electrical contact with the second end of the light emitting element on the insulating layer.
13 . The display device of claim 12 , wherein a portion of the second connection electrode overlaps a portion of the first electrode in a thickness direction of the substrate.
14 . The display device of claim 12 , wherein
the insulating layer further comprises a second opening exposing an upper surface of the second electrode, and
the second connection electrode is in electrical contact with the exposed upper surface of the second electrode.
15 . The display device of claim 14 , wherein
the insulating layer further comprises a third opening exposing an upper surface of the first electrode, and
the first connection electrode is in electrical contact with the exposed upper surface of the first electrode.
16 . The display device of claim 1 , wherein a portion of the first electrode overlaps a portion of the second electrode in a thickness direction of the substrate.
17 . An electronic device comprising:
a first electrode and a second electrode disposed to be spaced apart from each other on a substrate;
an insulating layer disposed on the first electrode and the second electrode; and
a light emitting element disposed on the insulating layer and having a first end disposed on the first electrode and a second end opposite to the first end, wherein
the insulating layer comprises a first opening adjacent to the first end of the light emitting element and exposing the insulating layer,
wherein a distance between the first end of the light emitting element and an end of the first electrode in a plan view is longer than a distance between the second end of the light emitting element and the end of the first electrode in a plan view,
wherein the first opening overlaps a first end of the light emitting element in a thickness direction, the first end of the light emitting element is a side surface of the light emitting element that is perpendicular to a longitudinal direction of the light emitting element, and
wherein the first electrode overlaps at least a center point of the light emitting element in a thickness direction of the substrate.
18 . The electronic device of claim 17 , further comprising:
a first bank pattern disposed between the substrate and the first electrode; and
a second bank pattern disposed between the substrate and the second electrode,
wherein an end of the second electrode is disposed on the second bank pattern.
19 . The electronic device of claim 17 , wherein a shortest distance between the substrate and the first electrode is shorter than a shortest distance between the substrate and the second electrode.