Display device
Provided is a display device including a substrate, a display portion on the substrate, and a thin-film encapsulation layer configured to shield the display portion and including an organic encapsulation layer, wherein the display portion includes a valley portion configured to control a flow of the organic encapsulation layer, and the valley portion includes a valley overlapping the organic encapsulation layer, a valley peak of which at least a portion is higher than a lower surface of the valley, and at least one control hole configured to control a position of an end of the organic encapsulation layer such that the end of the organic encapsulation layer is disposed on the valley peak.
1 . A display device comprising:
a substrate;
a display portion disposed on the substrate; and
a thin-film encapsulation layer disposed on the display portion and configured to shield the display portion and including an organic encapsulation layer,
wherein the display portion includes a valley portion configured to control a flow of the organic encapsulation layer, and
the valley portion includes:
a valley overlapping the organic encapsulation layer;
a valley peak of which at least a portion is higher than a lower surface of the valley wherein the valley peak includes:
a first valley peak; and
a second valley peak of which at least a portion is formed to be higher than the first valley peak, wherein the second valley peak includes a peak surface having an uneven shape along a boundary with the first valley peak in a plan view; and
at least one control hole configured to control a position of an end of the organic encapsulation layer such that the end of the organic encapsulation layer is disposed on the valley peak.
2 . The display device of claim 1 , wherein the at least one control hole is defined in the first valley peak.
3 . The display device of claim 2 , wherein the peak surface includes at least one sawtooth shape in a plan view.
4 . The display device of claim 3 , wherein at least a portion of the at least one control hole is defined in an area between edges of two adjacent sawtooth shapes of the at least one sawtooth shape.
5 . The display device of claim 1 , wherein a plurality of the control hole are provided, and
in a plan view, the plurality of control holes are spaced apart from each other in at least one of a first direction and a second direction.
6 . The display device of claim 5 , wherein the first direction and the second direction are not perpendicular to each other.
7 . The display device of claim 1 , wherein the display portion includes:
a first insulating layer disposed on the substrate;
a second insulating layer disposed on the first insulating layer; and
a pixel-defining layer disposed on the second insulating layer,
wherein the pixel-defining layer is arranged in the valley, and
the second insulating layer and the pixel-defining layer are arranged in the valley peak.
8 . The display device of claim 7 , wherein the second insulating layer is further arranged in the valley.
9 . The display device of claim 1 , wherein a spacer is arranged in the second valley peak.
10 . The display device of claim 1 , wherein the display portion includes:
a second insulating layer; and
a pixel-defining layer disposed on the second insulating layer, and
wherein the at least one control hole penetrates at least a portion of at least one of the second insulating layer and the pixel-defining layer.
11 . A display device comprising:
a substrate including a display area and a non-display area;
a first insulating layer disposed on the substrate;
a second insulating layer disposed on the first insulating layer;
a pixel-defining layer disposed on the second insulating layer; and
a thin-film encapsulation layer covering the pixel-defining layer and including an organic encapsulation layer,
wherein a portion of at least one of the second insulating layer and the pixel-defining layer is recessed to accommodate the organic encapsulation layer, and the second insulating layer and the pixel-defining layer are arranged in the non-display area,
at least one control hole is defined in an other portion of at least one of the second insulating layer and the pixel-defining layer, and the other portion is higher than the recessed portion of at least one of the second insulating layer and the pixel-defining layer, and
the at least one control hole is configured to control a position of an end of the organic encapsulation layer wherein a planar shape of one control hole of the at least one control hole and a planar shape of an other one control hole of the at least one control hole are different from each other.
12 . The display device of claim 11 , wherein a cross-sectional shape of one control hole of the at least one control hole and a cross-sectional shape of an other one control hole of the at least one control hole are different from each other.
13 . The display device of claim 11 , wherein a planar shape of the at least one control hole comprises one of a polygon, a circle, and an oval.
14 . The display device of claim 11 , wherein a side surface of a cross-sectional shape of the at least one control hole is inclined.
15 . The display device of claim 11 , wherein a side surface of a cross-sectional shape of the at least one control hole is stepped.
16 . The display device of claim 11 , wherein the at least one control hole is formed in different layers in a depth direction.
17 . The display device of claim 11 , wherein a plurality of the control hole are provided, and
in a plan view, the plurality of control holes are spaced apart from each other in a first direction and a second direction.