DISPLAY DEVICE
According to one embodiment, a display device Includes a substrate, a pixel circuit, an insulating layer including a contact hole, a lower electrode connected to the pixel circuit via the contact hole, an upper electrode, an organic layer between the lower electrode and the upper electrode, a rib formed of an inorganic material and including an aperture, and a partition above the rib. The organic layer includes a first organic layer in contact with the lower electrode via the aperture and a second organic layer located on the partition and spaced apart from the first organic layer. The partition overlaps an entire of the contact hole in plan view.
1 . A display device comprising:
a substrate;
a circuit disposed above the substrate;
an insulating layer which covers the pixel circuit and includes a contact hole;
a lower electrode disposed above the insulating layer and connected to the pixel circuit via the to contact hole;
an upper electrode opposing the lower electrode; an organic layer located between the lower electrode and the upper electrode and including a light-emitting layer;
a rib formed of an inorganic material and including an aperture which overlaps the lower electrode; and a partition disposed above the rib,
wherein
the organic layer includes a first organic layer in contact with the lower electrode via the aperture and a second organic layer located on the partition and spaced apart from the first organic layer, and
the partition overlaps an entire of the contact hole in plan view.
2 . The display device of claim 1 , wherein
the partition includes a lower portion disposed on the rib and an upper portion disposed on the lower portion and including an end portion protruding from a side surface of the lower portion, and
the second organic layer is disposed on the upper portion.
3 . The display device of claim 2 , wherein
the side surface of the lower portion is located between the contact hole and the aperture.
4 . The display device of claim 3 , wherein
a distance between the side surface and the contact hole in plan view is 2.0 µm or more.
5 . The display device of claim 2 , wherein
the upper electrode includes a first upper electrode which covers the first organic layer and a second upper electrode which covers the second organic layer and is spaced apart from the first upper electrode, and
the first upper electrode is in contact with the side surface.
6 . The display device of claim 5 , wherein
the lower portion has conductivity.
7 . The display device of claim 5 , further comprising:
a sealing layer formed of an inorganic material and covering the first upper electrode, the side surface and the second upper electrode.
8 . The display device of claim 1 , wherein
the lower electrode includes a first side located between the contact hole and the aperture in plan view, and a protruding portion protruding from the first side and overlapping the contact hole in plan view.
9 . The display device of claim 1 , wherein
the partition surrounds the aperture in plan view.
10 . The display device of claim 1 , wherein the second organic layer surrounds the aperture in plan view.
11 . The display device of claim 1 , wherein
a thickness of the rib is less than a thickness of the partition.
12 . The display device of claim 1 , wherein
the rib and the partition each include a recess portion located above the contact hole.
13 . The display device of claim 1 comprising:
a first sub-pixel, a second sub-pixel and a third sub-pixel each including the pixel circuit, the contact hole, the lower electrode, the upper electrode, the organic layer and the aperture, wherein
the first sub-pixel and the third sub-pixel are aligned in a first direction,
the first sub-pixel and the second sub-pixel are aligned in a second direction which intersects the first direction, and
the partition includes a first partition disposed between the aperture of the first sub-pixel and the aperture of the second sub-pixel, and a second partition disposed between the aperture of the first sub-pixel and the aperture of the third sub-pixel.
14 . The display device of claim 13 , wherein
a width of the first partition along the second direction is greater than a width of the second partition along the first direction.
15 . The display device of claim 13 , wherein
the contact hole of the first sub-pixel overlaps the first partition in plan view.
16 . The display device of claim 15 , wherein
the contact hole of the second sub-pixel overlaps the first partition in the plan view and is aligned with the contact hole of the first sub-pixel along the first direction.
17 . The display device of claim 13 , wherein the contact hole of the first sub-pixel is located
between the organic layer of the first sub-pixel and the organic layer of the second sub-pixel along the second direction.
18 . The display device of claim 13 , wherein
the second organic layer of the first sub-pixel and the second organic layer of the second sub-pixel are located on the first partition and are spaced apart from each other along the second direction.
19 . The display device of claim 13 , wherein
the upper electrode of each of the first sub-pixel and the second sub-pixel includes a first upper electrode which covers the first organic layer and a second uppper electrode disposed on the first parition, and
the second upper electrode of the first sub-pixel and the second upper electrode of the second sub-pixel are spaced apart from each other along the second direction.
20 . The display device of claim 13 , wherein
each of the first sub-pixel and the second sub-pixel comprises an sealing layer which covers the upper electrode, and
the sealing layer of the first sub-pixel and the sealing layer of the second sub-pixel are spaced apart from each other along the second direction.