Organic electro-luminescent display device and method of fabricating the same

1. An organic electro-luminescent display device, comprising:

a plurality of pixels on a substrate;

a thin film transistor coupled to each pixel;

an organic electro-luminescent device coupled to the thin film transistor;

a packaging layer on the organic electro-luminescent device, wherein the packaging layer comprises first and second inorganic layers having opposite stresses; and

a first organic layer between the first and second inorganic layers.

2. The device of claim 1 , wherein the first and the second inorganic layers are formed of a same material.

3. The device of claim 1 , wherein the first and second inorganic layers are formed of one of SiNx, SiOx, SiOxNy, Al 2 O 3 , and TiO 2 .

4. The device of claim 1 , wherein the first inorganic layer has a compressive stress with respect to the substrate, and the second inorganic layer has a tensile stress with respect to the substrate.

5. The device of claim 1 , wherein the first inorganic layer has a tensile, stress with respect to the substrate, and the second inorganic layer has a compressive stress with respect to the substrate.

6. The device of claim 1 , wherein further comprising a second organic layer on the second inorganic layer.

7. The device of claim 6 , wherein the second organic layer is formed of one of BCB and acryl.

8. The device of claim 1 , wherein the first organic layer is formed of one or more layers.

9. The device of claim 1 , wherein the organic electro-luminescent device comprises a first electrode, a second electrode, and an organic emitting layer between the first electrode and the second electrode.

10. The device of claim 9 , further comprising one of a LiF layer and a LiO layer between the second electrode and the organic emitting layer.

11. The device of claim 9 , wherein the first electrode is formed of a transparent material.

12. The device of claim 11 , wherein the transparent material is formed of one of indium tin oxide (ITO) and indium zinc oxide (IZO).

13. The device of claim 9 , wherein the second electrode is formed of an opaque material.

14. The device of claim 13 , wherein the opaque material is formed of one of Al, Ca, and Mg.

15. An organic electro-luminescent display device, comprising:

a plurality of pixels on a substrate;

a thin film transistor coupled to each pixel, the thin film transistor having a gate electrode, an active layer, and source/drain electrodes;

a capacitor having a power line connected to the source electrode, a polycrystalline silicon layer, and an insulating layer between the source electrode and the polycrystalline silicon layer;

an organic electro-luminescent device having a first electrode connected to the drain electrode, a second electrode over the first electrode, and an organic emitting layer between the first and second electrodes;

a first organic layer on the second electrode;

a first inorganic layer on the first organic layer;

a second organic layer formed of one or more layers on the first inorganic layer;

a second inorganic layer on the second organic layer and formed of a same material as the first inorganic layer, wherein the first and second inorganic layers have opposite stresses; and

a third organic layer formed of one or more layers on the second inorganic layer.

16. The device of claim 15 , wherein the first inorganic layer has a compressive stress with respect to the substrate, and the second inorganic layer has a tensile stress with respect to the substrate.

17. The device of claim 15 , wherein the first inorganic layer has a tensile stress with respect to the substrate, and the second inorganic layer has a compressive stress with respect to the substrate.

18. A method for fabricating an organic electro-luminescent display device comprising:

forming a thin film transistor having an active layer, source/drain electrodes, and a gate electrode, and a storage capacitor having a storage lower electrode, an interlayer insulation layer, and a power line, on a transparent substrate,

forming a passivation layer exposing portions of the drain electrode, the source electrode, and the power line;

forming an organic electro-luminescent device having a first electrode, an organic emitting layer, and a second electrode on the passivation layer;

forming a first organic layer on the second electrode;

forming a first inorganic layer on the first organic layer;

forming a second organic layer formed of one or more layers on the first inorganic layer;

forming a second inorganic layer on the second organic layer, the second inorganic layer formed of a same material as the first inorganic layer, wherein the first and second inorganic layers have opposite stresses; and

forming a third organic layer formed of one or more layers on the second inorganic layer.