Organic light-emitting display apparatus and method of manufacturing the same

1. An organic light-emitting display apparatus, comprising:

a substrate;

a light-emitting unit formed on the substrate; and

an encapsulation film which covers the light-emitting unit on the substrate, and which comprises a plurality of organic layers and a plurality of inorganic layers which are alternately stacked;

wherein each of the plurality of organic layers has a width different from widths of the other organic layers, a smallest one, in width, of the organic layers having a same width as the light-emitting unit.

2. The organic light-emitting display apparatus of claim 1 , wherein edges of the capsulation film have a structure in which the plurality of inorganic layers are stacked.

3. The organic light-emitting display apparatus of claim 1 , wherein widths of the plurality of organic layers decreases in an order stacked on the substrate.

4. The organic light-emitting display apparatus of claim 1 , wherein the plurality of inorganic layers are formed so as to have a width greater than widths of the plurality of organic layers.

5. The organic light-emitting display apparatus of claim 1 , wherein the plurality of organic layers and the plurality of inorganic layers contain transparent materials.

6. The organic light-emitting display apparatus of claim 1 , wherein the encapsulation film comprises:

a first organic layer contacting the light-emitting unit;

a first inorganic layer covering a portion of the substrate together with the first organic layer;

a second organic layer which is formed on the first inorganic layer, and which has a width smaller than a width of the first organic layer; and

a second inorganic layer covering the second organic layer.

7. The organic light-emitting display apparatus of claim 6 , wherein the second inorganic layer is formed so as to have a same width as the first inorganic layer.

8. The organic light-emitting display apparatus of claim 6 , wherein the encapsulation film further comprises:

a third organic layer which is formed on the second inorganic layer, and which has a width smaller than the width of the second organic layer; and

a third inorganic layer covering the third organic layer.

9. A method of manufacturing an organic light-emitting display apparatus, the method comprising the steps of:

preparing a substrate;

forming a light-emitting unit on the substrate; and

forming an encapsulation film which covers the light-emitting unit on the substrate, and which comprises a plurality of organic layers and a plurality of inorganic layers which are alternately stacked;

wherein each of the plurality of organic layers has a width different from widths of other organic layers, a smallest one of the organic layers, in width, having a same width as the light-emitting unit.

10. The method of claim 9 , wherein, in the step of forming the encapsulation film, the plurality of organic layers are formed by using a plurality of masks having openings of different sizes.

11. The method of claim 9 , wherein, in the step of forming the encapsulation film, the plurality of organic layers are formed by using a same mask.

12. The method of claim 10 , wherein a mask for forming the inorganic layers comprises an opening larger than an opening of each of the masks for forming the organic layers.

13. The method of claim 9 , wherein, in the step of forming the encapsulation film, a step of forming an organic layer on the light-emitting unit and a step of forming an inorganic layer on the organic layer are performed for a plurality of times, and widths of the organic layers decreases in the order stacked.

14. The method of claim 13 , wherein the plurality of inorganic layers are formed so as to have a width greater than widths of the plurality of organic layers.

15. The method of claim 9 , wherein the step of forming the encapsulation film comprises:

forming a first organic layer on the light-emitting unit by using a first mask having a first opening;

forming a first inorganic layer on the first organic layer by using a second mask;

forming a second organic layer on the first inorganic layer by using a third mask having a second opening smaller than the first opening; and

forming a second inorganic layer on the second organic layer by using the second mask.

16. The method of claim 15 , wherein a size of the first opening is larger than a size of the light-emitting unit.

17. The method of claim 15 , wherein the second mask comprises has an opening larger than the first opening.