Display device including rib and multi-portion partition
A display device includes an organic insulating layer, and a barrier layer formed of an inorganic insulating material and provided on the organic insulating layer. The display device also includes a rib formed of an inorganic insulating material and provided on the barrier layer, a partition including a lower portion located immediately above the barrier layer and provided on the rib, and an upper portion provided on the lower portion and protruding from a side surface of the lower portion. Further, the display device includes a lower electrode including an end portion between the organic insulating layer and the rib, an organic layer including a first portion provided on the lower electrode, and an upper electrode including a first portion provided on the first portion of the organic layer.
1 . A display device comprising:
a substrate;
an organic insulating layer provided above the substrate;
a barrier layer formed of an inorganic insulating material and provided on the organic insulating layer;
a rib formed of an inorganic insulating material and provided on the barrier layer;
a partition comprising a lower portion located immediately above the barrier layer and provided on the rib, and an upper portion provided on the lower portion and protruding from a side surface of the lower portion;
a lower electrode comprising an end portion between the organic insulating layer and the rib;
an organic layer comprising a first portion provided on the lower electrode in an aperture of the rib and spaced apart from the lower portion of the partition, and a second portion provided on the upper portion, the first and second portions including light emitting layers formed of a same material;
an upper electrode comprising a first portion which is provided on the first portion of the organic layer and is in contact with the lower portion of the partition, and a second portion provided on the second portion of the organic layer;
a cap layer comprising a first portion provided on the first portion of the upper electrode, and a second portion provided on the second portion of the upper electrode; and
a sealing layer which covers the first and second portions of the cap layer.
2 . The display device of claim 1 , wherein
between the side surface of the partition and the end portion of the lower electrode, the barrier layer is provided between the organic insulating layer and the rib.
3 . The display device of claim 2 , wherein
the end portion of the lower electrode is provided between the barrier layer and the rib.
4 . The display device of claim 3 , wherein
at a position overlapping the aperture of the rib, the lower electrode is provided on the barrier layer.
5 . The display device of claim 3 , wherein
at a position overlapping the aperture of the rib, the lower electrode is provided on the organic insulating layer without intervention of the barrier layer.
6 . The display device of claim 2 , wherein
the end portion of the lower electrode is provided between the organic insulating layer and the barrier layer.
7 . The display device of claim 2 , wherein
the end portion of the lower electrode is spaced apart from the barrier layer.
8 . The display device of claim 1 , wherein
the barrier layer and the rib are formed of inorganic insulating materials different from each other.
9 . The display device of claim 1 , wherein
the barrier layer is formed of silicon oxide or silicon oxynitride, and
the rib is formed of silicon nitride.
10 . The display device of claim 1 , wherein
the rib and the sealing layer are formed of a same inorganic insulating material.
11 . The display device of claim 1 , wherein
the rib and the sealing layer are formed of silicon nitride.
12 . The display device of claim 1 , wherein
the barrier layer and the sealing layer are formed of inorganic insulating materials different from each other.
13 . The display device of claim 1 , wherein
the barrier layer is formed of silicon oxide or silicon oxynitride, and
the sealing layer is formed of silicon nitride.
14 . The display device of claim 1 , wherein
the lower portion of the partition is formed of a conductive material, and is electrically connected to the first portion of the upper electrode.