Display device including conductive member electrically connected to power line
A display device including a substrate, a first upper power line, a conductive member, a protective insulating layer, an upper connection member, and a sub-pixel structure. The upper connection member is disposed in a first pad area and a first peripheral area on a planarization layer, and electrically connects the first upper power line and the conductive member through a first contact hole, which is formed in the protective insulating layer and the planarization layer located on the conductive member, and a second contact hole, which is formed in the protective insulating layer and the planarization layer located on the first upper power line.
1. A display device comprising:
a substrate including a display area, a peripheral area surrounding the display area and including a first peripheral area and a second peripheral area, a first pad area disposed along a first side of the peripheral area, and a second pad area disposed along a second side of the peripheral area opposite the first side of the peripheral area;
a gate line disposed on the display area;
a first upper power line disposed on the first pad area;
a conductive member disposed on the first peripheral area, which is adjacent to the first pad area;
a protective insulating layer disposed on the conductive member;
a planarization layer disposed on the protective insulating layer;
an upper connection member disposed on the planarization layer such that the upper connection member overlaps both the first pad area and the first peripheral area, the upper connection member electrically connecting the first upper power line and the conductive member to each other through a first contact hole, which is formed in both the protective insulating layer and the planarization layer and is disposed on a portion of the conductive member, and a second contact hole, which is formed in both the protective insulating layer and the planarization layer and is disposed on a portion of the first upper power line; and
a sub-pixel structure disposed on the protective insulating layer such that the sub-pixel structure overlaps the display area, wherein:
the sub-pixel structure comprises a thin film transistor, and
a gate electrode of the thin film transistor is electrically connected to the gate line.
2. The display device of claim 1 , further comprising:
a first connection pattern disposed between the protective insulating layer and the planarization layer to overlap the first contact hole, the first connection pattern covering a top surface of the conductive member so that the conductive member is not exposed; and
a second connection pattern disposed between the protective insulating layer and the planarization layer to overlap the second contact hole, the second connection pattern covering a top surface of the first upper power line so that the first upper power line is not exposed.
3. A The display device comprising:
a substrate including a display area, a peripheral area surrounding the display area and including a first peripheral area and a second peripheral area, a first pad area disposed along a first side of the peripheral area, and a second pad area disposed along a second side of the peripheral area opposite the first side of the peripheral area;
a first upper power line disposed on the first pad area;
a conductive member disposed on the first peripheral area, which is adjacent to the first pad area;
a protective insulating layer disposed on the conductive member;
a planarization layer disposed on the protective insulating layer;
an upper connection member disposed on the planarization layer such that the upper connection member overlaps both the first pad area and the first peripheral area, the upper connection member electrically connecting the first upper power line and the conductive member to each other through a first contact hole, which is formed in both the protective insulating layer and the planarization layer and is disposed on a portion of the conductive member, and a second contact hole, which is formed in both the protective insulating layer and the planarization layer and is disposed on a portion of the first upper power line; and
a sub-pixel structure disposed on the protective insulating layer such that the sub-pixel structure overlaps the display area, wherein:
the conductive member includes:
a first extension part extending in a first direction that is parallel to a top surface of the substrate, the first extension part being disposed on the first peripheral area; and
a second extension part extending from a first side of the first extension part in a second direction, which is a direction extending from the first peripheral area to the display area, the second extension part being disposed on both a portion of the first peripheral area and the display area, and
the first contact hole is disposed on a portion of the first extension part.
4. The display device of claim 3 , wherein the first contact hole has a bar shape in a plan view.
5. The display device of claim 4 , wherein a length of the first contact hole in the first direction is equal to a length of the first extension part in the first direction.
6. The display device of claim 1 , wherein:
the conductive member includes:
a first extension part extending in a first direction that is parallel to a top surface of the substrate, the first extension part being disposed on the first peripheral area; and
a second extension part extending from a first side of the first extension part in a second direction, which is a direction extending from the first peripheral area to the display area, the second extension part being disposed on both a portion of the first peripheral area and the display area, and
the sub-pixel structure includes:
a lower electrode disposed on both the display area and the planarization layer;
a light emitting layer disposed on the lower electrode; and
an upper electrode disposed on the light emitting layer.
7. The display device of claim 6 , wherein:
the upper electrode is electrically connected to the second extension part through a third contact hole, which is formed in both the protective insulating layer and the planarization layer and is disposed on the second extension part; and
the second extension part is defined as a first sub-power line.
8. The display device of claim 7 , further comprising:
a third connection pattern disposed between the protective insulating layer and the planarization layer to overlap the third contact hole, the third connection pattern covering a top surface of the second extension part so that the second extension part is not exposed; and
a first electrode pattern disposed between the upper electrode and the third connection pattern.
9. The display device of claim 7 , further comprising:
a first lower power line disposed on the second pad area;
a second lower power line disposed on the second pad area and the second peripheral area that is adjacent to the second pad area; and
fan-out lines disposed between the second pad area and the first and second lower power lines and between the second peripheral area and the first and second power lines.
10. The display device of claim 9 , wherein:
the first lower power line is configured to receive a first power;
the second power line is configured to receive a second power having a voltage level that is different from a voltage level of the first power; and
the fan-out lines are configured to receive a data signal.
11. The display device of claim 9 , further comprising:
a lower connection member disposed on both the second pad area and the second peripheral area, the planarization layer being disposed on the lower connection member,
wherein the lower connection member electrically connects the first lower power line and the first sub-power line through a fourth contact hole, which is formed in both the protective insulating layer and the planarization layer and is disposed on the first lower power line, and a fifth contact hole, which is disposed on the first sub-power line that is adjacent to the second peripheral area.
12. The display device of claim 11 , further comprising:
a fourth connection pattern disposed between the protective insulating layer and the planarization layer to overlap the fourth contact hole, the fourth connection pattern covering the fourth contact hole so that the first lower power line is not exposed; and
a fifth connection pattern disposed between the protective insulating layer and the planarization layer to overlap the fifth contact hole, the fifth connection pattern covering the fifth contact hole so that the first sub-power line is not exposed.
13. The display device of claim 7 , wherein, in a view in a direction perpendicular to the substrate, the light emitting layer does not overlap the third contact hole.
14. The display device of claim 1 , further comprising:
upper inspection pads disposed in a same layer as the first upper power line and the conductive member,
wherein the upper inspection pads are arranged in a first direction on the first peripheral area, the first direction being parallel to a top surface of the substrate.
15. A display device comprising:
a substrate including a display area, a peripheral area surrounding the display area and including a first peripheral area and a second peripheral area, a first pad area disposed along a first side of the peripheral area, and a second pad area disposed along a second side of the peripheral area opposite the first side of the peripheral area;
a first upper power line disposed on the first pad area;
a second upper power line disposed on both the first pad area and the first peripheral area, the second upper power line being configured to provide a different voltage level than the first upper power line;
a conductive member disposed on the first peripheral area, which is adjacent to the first pad area, the second upper power line being closer to the substrate than both the first upper power line and the conductive member;
a protective insulating layer disposed on the conductive member;
a planarization layer disposed on the protective insulating layer:
an upper connection member disposed on the planarization layer such that the upper connection member overlaps both the first pad area and the first peripheral area, the upper connection member electrically connecting the first upper power line and the conductive member through a first contact hole, which is formed in both the protective insulating layer and the planarization layer and is disposed on the conductive member, and a second contact hole, which is formed in both the protective insulating layer and the planarization layer and is disposed on the first upper power line; and
a sub-pixel structure disposed on the protective insulating layer such that the sub-pixel structure overlaps the display area.
16. The display device of claim 15 , wherein:
the second upper power line includes:
a first line extension part extending in a first direction that is parallel to a top surface of the substrate, the first line extension part being disposed on the first peripheral area;
a second line extension part extending from a first side of the first line extension part in a third direction, which is a direction extending from the first peripheral area to the first pad area, the second line extension part being disposed on the first pad area; and
a third line extension part extending from a second side of the first line extension part in a second direction, which is a direction extending from the first peripheral area to the display area, the third line extension part being disposed on in the display area, the second side of the first line extension part opposing the first side of the first line extension part, and
the conductive member overlaps the third line extension part.
17. The display device of claim 16 , further comprising:
a second sub-power line disposed on both a portion of the first peripheral area and the display area, wherein:
the second sub-power line extends in the second direction, and
the second sub-power line is electrically connected to the third line extension part in a region overlapping the first peripheral area.
18. The display device of claim 17 , wherein the second sub-power line is disposed in a same layer as both the first upper power line and the conductive member.
19. The display device of claim 1 , further comprising:
first pad electrodes disposed on the first pad area; and
second pad electrodes disposed on the second pad area.
20. The display device of claim 19 , further comprising:
a first power circuit boards configured to receive a first power;
a second power circuit boards configured to receive a second power having a voltage level that is different from a voltage level of the first power; and
a driving circuit boards configured to receive a data signal, wherein:
the first power circuit board and the second power circuit board are electrically connected to at least some of the first pad electrodes; and
the first power circuit board, the second power circuit board, and the driving circuit board are electrically connected to at least some of the second pad electrodes.