Display device having a first display area and a second display area having a transmission area

1. A display device comprising:

a substrate including a first display area and a second display area;

first pixels in the first display area; and

second pixels in the second display area,

wherein a distance between a first sub-pixel from among the first pixels and a second sub-pixel from among the second pixels has a value based on a pixel pitch,

wherein the first sub-pixel and the second sub-pixel are adjacent to a boundary area between the first display area and the second display area,

wherein the second sub-pixel is a pixel through which a virtual line first passes, from among the second pixels, in the second display area, the virtual line passing through a center of the first sub-pixel,

wherein the virtual line is parallel to data lines or scan lines connected to the second pixels,

wherein a first distance between the first sub-pixel and the second sub-pixel when the first sub-pixel and the second sub-pixel emit same colors is different from a second distance between the first sub-pixel and the second sub-pixel when the first sub-pixel and the second sub-pixel emit different colors, and

wherein the first distance and the second distance are a shortest straight-line distance between an edge of the first sub-pixel and an edge of the second sub-pixel.

2. The display device of claim 1 , wherein the second pixels are in units of pixel groups,

wherein the second display area comprises transmission areas and the transmission areas surround the pixel groups.

3. The display device of claim 2 , wherein a structuring of the second pixels constituting the pixel groups is same as or different from a structuring of the first pixels.

4. The display device of claim 2 , further comprising an inorganic insulating layer on the substrate,

wherein the inorganic insulating layer includes an opening corresponding to the transmission areas and the boundary area.

5. The display device of claim 1 , wherein an area of each of the second pixels is different from an area of a first pixel corresponding to the second pixel.

6. The display device of claim 1 , wherein the pixel pitch is a center distance between first pixels emitting green light.

7. The display device of claim 1 , wherein the first distance between the first sub-pixel and the second sub-pixel is greater than or equal to the pixel pitch.

8. The display device of claim 1 , wherein the second distance between the first sub-pixel and the second sub-pixel has a minimum value among gap values of a pixel-defining layer between the first pixels and gap values of a pixel-defining layer between the second pixels or a value that is greater than the minimum value.

9. The display device of claim 1 , wherein a second resolution of the second display area is less than a first resolution of the first display area.

10. A display device comprising:

a substrate including a first display area and a second display area including a transmission area;

first pixels in the first display area; and

second pixels in the second display area,

wherein a distance between a first sub-pixel from among the first pixels and a second sub-pixel from among the second pixels is greater than or equal to a minimum value among gap values of a pixel-defining layer between the first pixels and gap values of a pixel-defining layer between the second pixels,

wherein the first sub-pixel and the second sub-pixel are adjacent to a boundary area between the first display area and the second display area, and emit different colors.

11. The display device of claim 10 , wherein the second sub-pixel is a pixel through which a virtual line passes, from among the second pixels, in the second display area, the virtual line passing through a center of the first sub-pixel.

12. The display device of claim 11 , wherein the virtual line is parallel to data lines or scan lines connected to the second pixels.

13. The display device of claim 10 , wherein the second pixels are in units of pixel groups,

wherein transmission areas surround the pixel groups.

14. The display device of claim 13 , wherein a structuring of the second pixels constituting the pixel groups is same as or different from a structuring of the first pixels.

15. The display device of claim 10 , wherein an area of each of the second pixels is different from an area of a first pixel corresponding to the second pixel.

16. The display device of claim 10 , wherein a second resolution of the second display area is less than a first resolution of the first display area.

17. A display device comprising:

a substrate including a first display area and a second display area;

first pixels in the first display area; and

second pixels in the second display area,

wherein a center distance between a first sub-pixel from among the first pixels and a second sub-pixel from among the second pixels is within a certain range of twice a pixel pitch

wherein the first sub-pixel and the second sub-pixel are adjacent to a boundary area between the first display area and the second display area, and emit a same color,

wherein the second sub-pixel is a pixel through which a virtual line first passes, from among the second pixels, in the second display area, the virtual line passing through a center of the first sub-pixel,

wherein the virtual line is parallel to data lines or scan lines connected to the second pixels, and

wherein the center distance is a shortest straight-line distance between a center of the first sub-pixel and a center of the second sub-pixel.

18. The display device of claim 17 , wherein the second pixels are in units of pixel groups,

wherein transmission areas surround the pixel groups.

19. The display device of claim 18 , wherein a structuring of the second pixels constituting the pixel groups is same as or different from a structuring of the first pixels.

20. The display device of claim 17 , wherein the pixel pitch is a center distance between first pixels emitting green light.

21. The display device of claim 17 , wherein a second resolution of the second display area is less than a first resolution of the first display area.

22. The display device of claim 17 , wherein an area of each of the second pixels is different from an area of a first pixel corresponding to the second pixel.

23. The display device of claim 17 , wherein the virtual line is parallel to data lines or scan lines connected to the second pixels.