Organic light-emitting display apparatus
In an organic light-emitting display apparatus comprising a plurality of pixels, at least one of the plurality of pixels includes a first conductive layer over a substrate, a first organic insulating layer over the first conductive layer, the first organic insulating layer comprising a first opening exposing a part of the first conductive layer, a second conductive layer over the first organic insulating layer, the second conductive layer contacting the part of the first conductive layer exposed through the first opening, a first inorganic insulating layer over the first organic insulating layer to cover the second conductive layer, the first inorganic insulating layer comprising a second opening exposing at least a part of the first organic insulating layer, and a second organic insulating layer over the first inorganic insulating layer, the second organic insulating layer contacting the first organic insulating layer through the second opening.
1. An organic light-emitting display apparatus comprising a plurality of pixels, wherein at least one of the plurality of pixels comprises:
a first conductive layer over a substrate;
a first organic insulating layer over the first conductive layer, the first organic insulating layer comprising a first opening exposing a part of the first conductive layer;
a second conductive layer over the first organic insulating layer, the second conductive layer contacting the part of the first conductive layer exposed through the first opening;
a first inorganic insulating layer over the first organic insulating layer to cover the second conductive layer, the first inorganic insulating layer comprising a second opening exposing at least a part of the first organic insulating layer; and
a second organic insulating layer over the first inorganic insulating layer, the second organic insulating layer being provided in one-piece, being formed of a same material, overlapping at least a center of the second conductive layer and contacting the first organic insulating layer through the second opening.
2. The organic light-emitting display apparatus of claim 1 , further comprising a second inorganic insulating layer over the substrate to cover the first conductive layer,
wherein the second inorganic insulating layer comprises a third opening exposing a part of the first conductive layer, and
the second conductive layer contacts the part of the first conductive layer exposed through the first opening and the third opening.
3. The organic light-emitting display apparatus of claim 2 , wherein the second inorganic insulating layer and the first inorganic insulating layer respectively contact the first conductive layer and the second conductive layer, the first organic insulating layer is separated by the second inorganic insulating layer from the first conductive layer, and the second organic insulating layer is separated by the first inorganic insulating layer from the second conductive layer.
4. The organic light-emitting display apparatus of claim 2 , wherein the first inorganic insulating layer and the second inorganic insulating layer include silicon nitride (SiNx), and the first organic insulating layer and the second organic insulating layer include polyimide (PI).
5. The organic light-emitting display apparatus of claim 2 , wherein an edge of the first opening surrounds an edge of the third opening, and the third opening is arranged inside the first opening.
6. The organic light-emitting display apparatus of claim 1 , further comprising a thin film transistor comprising an active layer which comprises a source region, a drain region, and a channel region connecting the source region and the drain region, and a gate electrode over the active layer to be insulated from the active layer,
wherein the first conductive layer is electrically connected to the source region or the drain region.
7. The organic light-emitting display apparatus of claim 1 , wherein the first inorganic insulating layer further comprises a fourth opening exposing a part of the second conductive layer, and the second organic insulating layer comprises a fifth opening exposing the part of the second conductive layer that is exposed by the fourth opening.
8. The organic light-emitting display apparatus of claim 7 , wherein an edge of the fifth opening surrounds an edge of the fourth opening, and the fourth opening is arranged inside the fifth opening.
9. The organic light-emitting display apparatus of claim 7 , further comprising:
a pixel electrode contacting the second conductive layer through the fourth opening and the fifth opening;
an intermediate layer over the pixel electrode, the intermediate layer comprising a light-emitting layer; and
a counter electrode over the intermediate layer.
10. The organic light-emitting display apparatus of claim 1 , further comprising:
a lower power supply line on a same layer as the first conductive layer; and
an upper power supply line on a same layer as the second conductive layer.
11. The organic light-emitting display apparatus of claim 10 , wherein the lower power supply line and the upper power supply line are electrically connected to each other via a contact hole included in the first organic insulating layer and the second inorganic insulating layer.
12. The organic light-emitting display apparatus of claim 10 , wherein the first inorganic insulating layer entirely covers the upper power supply line, and the second opening corresponds to a space between the second conductive layer and the upper power supply line.
13. The organic light-emitting display apparatus of claim 1 , wherein the second opening comprises a plurality of openings arranged in an area adjacent to the second conductive layer.
14. The organic light-emitting display apparatus of claim 1 , wherein the second conductive layer comprises a first layer including titanium (Ti), a second layer including aluminum (Al), and a third layer including titanium (Ti).
15. An organic light-emitting display apparatus comprising a plurality of pixels, wherein at least one of the plurality of pixels comprises:
a first conductive layer over a substrate;
a lower power supply line on a same layer as the first conductive layer and spaced apart from the first conductive layer;
a first organic insulating layer over the first conductive layer and the lower power supply line, the first organic insulating layer comprising a first opening exposing a part of the first conductive layer and a second opening exposing a part of the lower power supply line;
a second conductive layer over the first organic insulating layer, the second conductive layer contacting the part of the first conductive layer exposed through the first opening;
an upper power supply line on a same layer as the second conductive layer, the upper power supply line contacting the part of the lower power supply line through the second opening;
a first inorganic insulating layer over the first organic insulating layer to cover the second conductive layer, the first inorganic insulating layer comprising a first region covering the second conductive layer and a second region covering the upper power supply line and spaced apart from the first region; and
a second organic insulating layer over the first inorganic insulating layer, the second organic insulating layer being provided in one-piece, being formed of a same material, overlapping at least a center of the second conductive layer and contacting the first organic insulating layer between the first region and the second region of the first inorganic insulating layer.
16. The organic light-emitting display apparatus of claim 15 , further comprising a second inorganic insulating layer over the substrate to cover the first conductive layer and the lower power supply line, the second inorganic insulating layer comprising a third opening exposing a part of the first conductive layer and a fourth opening exposing a part of the lower power supply line,
wherein the second conductive layer contacts the part of the first conductive layer exposed through the first opening and the third opening, and the upper power supply line contacts the part of the lower power supply line exposed through the second opening and the fourth opening.
17. The organic light-emitting display apparatus of claim 16 , wherein the first inorganic insulating layer and the second inorganic insulating layer include silicon nitride (SiNx), and the first organic insulating layer and the second organic insulating layer include polyimide (PI).
18. The organic light-emitting display apparatus of claim 15 , wherein the second conductive layer comprises a first layer including titanium (Ti), a second layer including aluminum (Al), and a third layer including titanium (Ti).
19. The organic light-emitting display apparatus of claim 15 , further comprising a thin film transistor comprising an active layer that comprises a source region, a drain region, and a channel region connecting the source region and the drain region, and a gate electrode over the active layer to be insulated from the active layer,
wherein the first conductive layer is electrically connected to the source region or the drain region.
20. The organic light-emitting display apparatus of claim 15 , further comprising:
a pixel electrode contacting the second conductive layer;
an intermediate layer over the pixel electrode, the intermediate layer comprising a light-emitting layer; and
a counter electrode over the intermediate layer.