Organic electroluminescence display with first electrode with a curved portion below light blocking layer
An organic electroluminescence display apparatus includes an insulating layer including a concave portion having a concave first upper surface, a first electrode including a curved electrode portion having a concave second upper surface overlapped with the concave portion, a pixel definition layer including a first opening defined therethrough to expose the second upper surface, an organic layer disposed on the first electrode, a second electrode disposed on the organic layer, and a light blocking layer including a second opening defined therethrough. The second opening has a width smaller than the first opening and overlaps with the first opening.
1. An organic electroluminescence display apparatus comprising:
an insulating layer comprising a concave portion having a concave first upper surface;
a first electrode disposed on the insulating layer and comprising a curved electrode portion having a concave second upper surface overlapped with the concave portion;
a pixel definition layer disposed on the insulating layer and comprising a first opening defined therethrough to expose the second upper surface;
an organic layer disposed on the first electrode;
a second electrode disposed on the organic layer; and
a light blocking layer disposed on the second electrode and comprising a second opening defined therethrough, the second opening having a width smaller than the first opening and being overlapped with the first opening.
2. The organic electroluminescence display apparatus of claim 1 , wherein the curved electrode portion satisfies the following Equation 1 of
R
O
1
≤
W
1
2
cos
[
tan
-
1
(
W
2
W
1
-
W
3
)
]
,
where R 01 denotes a radius of curvature of the second upper surface, W 1 denotes a first width of the first opening, W 2 denotes a second width of the second opening, and W 3 denotes a shortest distance between the light blocking layer and the first electrode exposed through the first opening.
3. The organic electroluminescence display apparatus of claim 1 , wherein a minimum width of the first opening is equal to or greater than a maximum width of the second opening.
4. The organic electroluminescence display apparatus of claim 1 , wherein an edge line of the second opening is disposed inside an edge line of the first opening when viewed in a plan view.
5. The organic electroluminescence display apparatus of claim 1 , wherein the organic layer comprises a hole transport region, a light emitting layer, and an electron transport region, which are sequentially stacked one on another, and each of the hole transport region, the light emitting layer, and the electron transport region comprises a curved surface corresponding to the curved electrode portion.
6. The organic electroluminescence display apparatus of claim 1 , further comprises a protective member disposed on the light blocking layer, wherein the protective member comprises:
a base adhesive layer filled in the second opening and disposed on the light blocking layer; and
a base layer disposed on the base adhesive layer.
7. The organic electroluminescence display apparatus of claim 1 , further comprising an encapsulation layer disposed between the second electrode and the light blocking layer.
8. The organic electroluminescence display apparatus of claim 7 , further comprising a first optical layer disposed on the light blocking layer, wherein the first optical layer has a first refractive index equal to or greater than a refractive index of the encapsulation layer.
9. The organic electroluminescence display apparatus of claim 8 , wherein the first optical layer is filled in the second opening.
10. The organic electroluminescence display apparatus of claim 8 , further comprising a second optical layer overlapped with the second opening, disposed between the encapsulation layer and the first optical layer, and having a second refractive index equal to or smaller than the first refractive index.
11. The organic electroluminescence display apparatus of claim 10 , wherein the second refractive index is equal to the refractive index of the encapsulation layer.
12. The organic electroluminescence display apparatus of claim 10 , wherein the curved electrode portion satisfies the following Equation 2 of
R
O
2
≤
W
1
2
cos
[
tan
-
1
(
W
3
W
1
)
]
,
where R 02 denotes a radius of curvature of the second upper surface, W 1 denotes a first width of the first opening, and W 3 denotes a shortest distance between the light blocking layer and the first electrode exposed through the first opening.
13. The organic electroluminescence display apparatus of claim 10 , wherein the second optical layer is filled in the second opening and partially overlapped with the light blocking layer.
14. The organic electroluminescence display apparatus of claim 10 , wherein the second optical layer comprises a curved portion convex toward the first optical layer direction.
15. The organic electroluminescence display apparatus of claim 14 , wherein the second upper surface has a radius of curvature equal to a radius of curvature of the convex curved portion.
16. The organic electroluminescence display apparatus of claim 1 , further comprising a polarizing layer disposed on the light blocking layer, wherein the polarizing layer comprises a λ/4 retarder and a linear polarizer disposed on the λ/4 retarder.
17. The organic electroluminescence display apparatus of claim 1 , further comprising an input sensing unit disposed between the second electrode and the light blocking layer.
18. An organic electroluminescence display apparatus comprising:
a display panel; and
a light blocking member disposed on the display panel, the display panel comprising:
a substrate;
a first electrode comprising a curved surface convex toward the substrate;
a pixel definition layer disposed on the substrate and comprising a first opening defined therethrough to expose the first electrode;
at least one organic layer disposed on the first electrode;
a second electrode disposed on the at least one organic layer; and
an encapsulation layer disposed on the second electrode, wherein the light blocking member comprises a light blocking layer having a second opening defined through the light blocking layer, and the second opening has a width smaller than the first opening and is overlapped with the first opening.
19. The organic electroluminescence display apparatus of claim 18 , wherein the light blocking member further comprises an optical layer disposed on the light blocking layer and having a refractive index equal to or greater than a refractive index of the encapsulation layer.
20. The organic electroluminescence display apparatus of claim 18 , wherein the light blocking member further comprises:
an optical layer disposed on the light blocking layer and having a first refractive index; and
a lens part filled in the second opening, disposed between the encapsulation layer and the optical layer, having a curved surface convex toward the optical layer, and having a refractive index equal to or smaller than the first refractive index.