Organic light-emitting display apparatus

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

a substrate including a display area and a non-display area;

a reference sub-pixel arranged on the display area to realize a first color; and

a first sub-pixel arranged on the display area to realize the first color, the first sub-pixel being adjacent to the non-display area and having a shape different from a shape of the reference sub-pixel,

wherein the first sub-pixel includes:

a first pixel electrode;

a pixel-defining layer on the first pixel electrode, the pixel-defining layer including a first opening defining a first emission area on the first pixel electrode; and

a first emission layer in the first opening, and

wherein the reference sub-pixel includes:

a reference pixel electrode, the reference pixel electrode having a same shape and a same size as the first pixel electrode;

a reference pixel-defining layer on the reference pixel electrode, the reference pixel-defining layer including a reference opening defining a reference emission area on the reference pixel electrode, and a shape and a size of the first opening being different from a shape and a size of the reference opening; and

a reference emission layer in the reference opening, a shape and a size of the first emission layer being different from a shape and a size of the reference emission layer.

2. The organic light-emitting display apparatus as claimed in claim 1 , wherein the pixel-defining layer and the reference pixel-defining layer are integrally connected to each other and include a same material.

3. The organic light-emitting display apparatus as claimed in claim 1 , wherein an area of the first opening is less than an area of the reference opening.

4. The organic light-emitting display apparatus as claimed in claim 1 , further comprising a boundary line between the display area and the non-display area, at least a portion of the boundary line including a curved line, and the first opening and the reference opening defining the different shapes of the first sub-pixel and the reference sub-pixel.

5. The organic light-emitting display apparatus as claimed in claim 4 , wherein the boundary line has a circular shape having a pre-determined curvature.

6. The organic light-emitting display apparatus as claimed in claim 4 , wherein an edge of the first sub-pixel includes a curved line corresponding to the boundary line.

7. The organic light-emitting display apparatus as claimed in claim 6 , further comprising a plurality of second sub-pixels and a plurality of third sub-pixels arranged to be adjacent to the first sub-pixel and to realize a second color and a third color, respectively, the first through third sub-pixels defining one pixel.

8. The organic light-emitting display apparatus as claimed in claim 7 , wherein edges of at least one of the plurality of second sub-pixels and the plurality of third sub-pixels include curved lines corresponding to the boundary line.

9. The organic light-emitting display apparatus as claimed in claim 7 , wherein a shape of the first sub-pixel is different from shapes of at least one of the plurality of second sub-pixels and the plurality of third sub-pixels.

10. The organic light-emitting display apparatus as claimed in claim 9 , wherein the shapes of the at least one of the plurality of second sub-pixels and the plurality of third sub-pixels are the same as the shape of the reference sub-pixel.

11. The organic light-emitting display apparatus as claimed in claim 7 , wherein each of the first through third sub-pixels have a same area.

12. The organic light-emitting display apparatus as claimed in claim 11 , wherein respective shapes of the plurality of second sub-pixels and the plurality of third sub-pixels are the same as the shape of the first sub-pixel.

13. The organic light-emitting display apparatus as claimed in claim 7 , wherein:

the plurality of second sub-pixels include a second pixel electrode,

the plurality of third sub-pixels include a third pixel electrode, and

the pixel-defining layer further includes a second opening defining a second emission layer on the second pixel electrode and a third opening defining a third emission layer on the third pixel electrode.

14. The organic light-emitting display apparatus as claimed in claim 13 , wherein shapes of the second sub-pixel and the third sub-pixel are the same as a shape of a first opening.

15. The organic light-emitting display apparatus as claimed in claim 13 , wherein:

the plurality of second sub-pixels further include the second emission layer arranged in the second opening,

the plurality of third sub-pixels further include the third emission layer arranged in the third opening,

and shapes of the second emission layer and the third emission layer are the same as a shape of a first emission layer.

16. The organic light-emitting display apparatus as claimed in claim 13 , wherein the second pixel electrode and the third pixel electrode have a same shape and a same area as the first pixel electrode.