Display device for improving display quality, and method for fabrication thereof
A display device includes a substrate including a first surface, a second surface opposite to the first surface, a lateral side meeting the first surface, and an inclined surface between the lateral side and the second surface, a light-emitting element layer above the first surface of the substrate, dams surrounding the light-emitting element layer in plan view, an encapsulating layer covering the light-emitting element layer and the dams, and an organic planarization layer above the encapsulating layer, covering the encapsulating layer and the dams, extending to be adjacent to an edge of the substrate, and having a lateral side that forms an inclination, and that is spaced inwardly from the lateral side of the substrate, wherein a distance between the lateral side of the organic planarization layer and the lateral side of the substrate is less than a planar width of the inclined surface of the substrate.
1 . A display device comprising:
a substrate comprising a first surface, a second surface opposite to the first surface, a lateral side meeting the first surface, and an inclined surface between the lateral side and the second surface;
a light-emitting element layer above the first surface of the substrate;
dams surrounding the light-emitting element layer in plan view;
an encapsulating layer covering the light-emitting element layer and the dams; and
an organic planarization layer above the encapsulating layer, covering the encapsulating layer and the dams, extending to be adjacent to an edge of the substrate, and having a lateral side that forms an inclination, and that is spaced inwardly from the lateral side of the substrate,
wherein a distance between the lateral side of the organic planarization layer and the lateral side of the substrate is less than a planar width of the inclined surface of the substrate.
2 . The display device of claim 1 , wherein the substrate comprises a display area in which the light-emitting element layer is located, a through hole in the display area, and a non-display area around the display area, and
wherein the edge of the substrate is at the non-display area or the through hole.
3 . The display device of claim 1 , wherein the encapsulating layer comprises a first encapsulating inorganic film above the light-emitting element layer and the dams, an encapsulation organic layer above the first encapsulating inorganic layer, and a second encapsulating inorganic layer above the encapsulating organic layer.
4 . The display device of claim 3 , wherein the organic planarization layer directly contacts an upper surface of the second encapsulating inorganic layer, and
wherein an angle between a side of the organic planarization layer and the upper surface of the second encapsulating inorganic layer is about 90 degrees or less.
5 . The display device of claim 1 , wherein a planar width of the lateral side of the organic planarization layer is in a range of about 10 μm to about 150 μm.
6 . The display device of claim 1 , wherein a distance between a point of the lateral side of the organic planarization layer and the lateral side of the substrate is about 50 μm or less.
7 . The display device of claim 1 , further comprising a polarizing film above the organic planarization layer, and directly attached to an upper surface of the organic planarization layer.
8 . The display device of claim 1 , wherein a distance between a point of the lateral side of the organic planarization layer and the lateral side of the substrate is less than a distance between the lateral side of the substrate and one of the dams that is adjacent to the lateral side of the substrate.
9 . The display device of claim 1 , further comprising a crack dam between the dams and the lateral side of the substrate, and covered by the organic planarization layer.
10 . The display device of claim 9 , wherein a distance between a point of the lateral side of the organic planarization layer and the lateral side of the substrate is less than a distance between the crack dam and the lateral side of the substrate.
11 . A display device comprising:
a substrate defining a through hole;
a light-emitting element layer above the substrate;
dams surrounding the light-emitting element layer in plan view;
an encapsulating layer covering the light-emitting element layer and the dams; and
an organic planarization layer above the encapsulating layer, and protruding further than a lateral side of the substrate in the through hole.
12 . The display device of claim 11 , wherein the encapsulating layer comprises a first encapsulating inorganic layer above the light-emitting element layer and the dams, an encapsulation organic layer above the first encapsulating inorganic layer, and a second encapsulating inorganic layer above the encapsulating organic layer, and
wherein the organic planarization layer directly contacts an upper surface of the second encapsulating inorganic layer.
13 . The display device of claim 12 , wherein a lateral side of the organic planarization layer is inclined, and
wherein an angle between the lateral side of the organic planarization layer and a top surface of the second inorganic encapsulating layer is about 90 degrees or less.
14 . The display device of claim 12 , wherein a lateral side of the first encapsulating inorganic layer and a lateral side of the second encapsulating inorganic layer protrude outward from the lateral side of the substrate.
15 . The display device of claim 14 , wherein a lateral side of the organic planarization layer and the lateral side of the second encapsulating inorganic layer meet each other.
16 . A display device comprising:
a substrate defining a through hole;
a light-emitting element layer above the substrate;
dams surrounding the light-emitting element layer in plan view;
an encapsulating layer covering the light-emitting element layer and the dams;
an organic planarization layer above the encapsulating layer, and protruding further than a lateral side of the substrate in the through hole; and
a thin film transistor layer between the substrate and the light-emitting element layer, and comprising:
a first buffer layer;
a gate insulating layer;
a first interlayer insulating layer; and
a second interlayer insulating layer,
wherein lateral sides of the first buffer layer, the gate insulating layer, the first interlayer insulating layer, and the second interlayer insulating layer protrude outwardly from the lateral side of the substrate.