Display device

1 . A display device comprising:

a plurality of first pixels disposed in a first pixel area, each of the plurality of first pixels including a plurality of first sub-pixel groups;

a plurality of second pixels disposed in a second pixel area surrounded by the first pixel area, each of the plurality of second pixels including a plurality of second sub-pixel groups, at least one of the plurality of second sub-pixel groups including a different total number of sub-pixels than at least one of the plurality of first sub-pixel groups; and

a plurality of dummy pixels disposed at edge portions of the second pixel area, wherein

a pixel density of the second pixel area is lower than a pixel density of the first pixel area, and

the plurality of dummy pixels are configured to emit lights of different colors and are differently arranged according to positions of the edge portions of the second pixel area such that sub-pixels among the plurality of second pixels adjacent to respective ones of the edge portions are configured to emit a color of light different from those of respective dummy pixels of the plurality of dummy pixels adjacent thereto,

wherein the plurality of first sub-pixel groups comprise a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel,

the plurality of second sub-pixel groups comprise a fifth sub-pixel, a sixth sub-pixel, and a seventh sub-pixel,

the plurality of dummy pixels comprise a first dummy pixel, a second dummy pixel, and a third dummy pixel,

the first sub-pixel, the fifth sub-pixel, and the first dummy pixel emit light of a first color,

the second sub-pixel, the fourth sub-pixel, the sixth sub-pixel, and the second dummy pixel emit light of a second color, and

the third sub-pixel, the seventh sub-pixel, and the third dummy pixel emit light of a third color,

wherein the first dummy pixel is disposed between the sixth sub-pixel and the seventh sub-pixel,

the second dummy pixel is disposed between the seventh sub-pixel and the fifth sub-pixel, and

the third dummy pixel is adjacent to the fifth sub-pixel.

2 . The display device of claim 1 , wherein

the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel are sequentially disposed in a zigzag pattern along a first direction and a second direction in a plan view,

the sixth sub-pixel is disposed below the fifth sub-pixel along the second direction in a plan view, and

the seventh sub-pixel is adjacent to the fifth sub-pixel and the sixth sub-pixel along the first direction in a plan view.

3 . The display device of claim 2 , wherein, in a first region of a boundary area between the first pixel area and the second pixel area, the first sub-pixel, the fourth sub-pixel, and the third dummy pixel are sequentially disposed along a first diagonal direction between the first direction and the second direction.

4 . The display device of claim 3 , wherein, in a second region of the boundary area between the first pixel area and the second pixel area, the seventh sub-pixel, the first dummy pixel, and the sixth sub-pixel are sequentially disposed along the first diagonal direction.

5 . The display device of claim 4 , wherein, in a third region of the boundary area between the first pixel area and the second pixel area, the third sub-pixel, the fourth sub-pixel, and the first dummy pixel are sequentially disposed along a second diagonal direction between the first direction and the second direction.

6 . The display device of claim 5 , wherein, in a fourth region of the boundary area between the first pixel area and the second pixel area, the fifth sub-pixel, the seventh sub-pixel, and the second dummy pixel are sequentially disposed along the second diagonal direction.

7 . The display device of claim 2 , wherein, in a fifth region of a boundary area between the first pixel area and the second pixel area, the first dummy pixel and the third dummy pixel are disposed along the second direction in a portion adjacent between the second sub-pixel and the fourth sub-pixel.

8 . The display device of claim 7 , wherein, in a sixth region of the boundary area between the first pixel area and the second pixel area, the second dummy pixel is disposed along the second direction in a portion adjacent to the first sub-pixel and the third sub-pixel.

9 . The display device of claim 2 , wherein, in a seventh region of a boundary area between the first pixel area and the second pixel area, the first sub-pixel, the seventh sub-pixel, and the second dummy pixel are sequentially disposed along a first diagonal direction between the first direction and the second direction.

10 . The display device of claim 9 , wherein, in an eighth region of the boundary area between the first pixel area and the second pixel area, the third sub-pixel, the fourth sub-pixel, and the first dummy pixel are sequentially disposed along a second diagonal direction between the first direction and the second direction.

11 . The display device of claim 10 , wherein, in a ninth region of the boundary area between the first pixel area and the second pixel area, the fifth sub-pixel, the seventh sub-pixel, and the second dummy pixel are sequentially disposed along the second diagonal direction.

12 . A display device comprising:

a plurality of first pixels disposed in a first pixel area, each of the plurality of first pixels including a plurality of first sub-pixel groups;

a plurality of second pixels disposed in a second pixel area surrounded by the first pixel area, each of the plurality of second pixels including a plurality of second sub-pixel groups; and

a plurality of dummy pixels disposed at edge portions of the second pixel area, wherein

a size of a light emitting portion of a dummy pixel among the plurality of dummy pixels is smaller than a size of a light emitting portion of a second sub-pixel group among the plurality of second sub-pixel groups, and

the size of the light emitting portion of the dummy pixel is substantially equivalent to a size of a light emitting portion of at least one sub-pixel among sub-pixels of the plurality of first sub-pixel groups,

the plurality of dummy pixels are configured to emit lights of different colors and are differently arranged according to positions of the edge portions of the second pixel area such that sub-pixels among the plurality of second pixels adjacent to respective ones of the edge portions are configured to emit a color of light different from those of respective dummy pixels of the plurality of dummy pixels adjacent thereto,

wherein the plurality of first sub-pixel groups comprise a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel,

the plurality of second sub-pixel groups comprise a fifth sub-pixel, a sixth sub-pixel, and a seventh sub-pixel,

the plurality of dummy pixels comprise a first dummy pixel, a second dummy pixel, and a third dummy pixel,

the first sub-pixel, the fifth sub-pixel, and the first dummy pixel emit light of a first color,

the second sub-pixel, the fourth sub-pixel, the sixth sub-pixel, and the second dummy pixel emit light of a second color, and

the third sub-pixel, the seventh sub-pixel, and the third dummy pixel emit light of a third color,

wherein in the first pixel area, the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel are sequentially disposed in a zigzag pattern along a first direction and a second direction in a plan view, and

in the second pixel area, the sixth sub-pixel is disposed below the fifth sub-pixel along the second direction, and the seventh sub-pixel is disposed adjacent to the fifth sub-pixel and the sixth sub-pixel along the first direction in a plan view,

wherein in a first sub-area of a boundary area between the first pixel area and the second pixel area, the first sub-pixel, the fourth sub-pixel, and the third dummy pixel are sequentially disposed along a first diagonal direction between the first direction and the second direction, and

in the first sub-area, the seventh sub-pixel, the first dummy pixel, and the sixth sub-pixel are sequentially disposed along the first diagonal direction.

13 . The display device of claim 12 , wherein

in the first sub-area, the third sub-pixel, the fourth sub-pixel, and the first dummy pixel are sequentially disposed along a second diagonal direction between the first direction and the second direction, and

in the first sub-area, the fifth sub-pixel, the seventh sub-pixel, and the second dummy pixel are sequentially disposed along the second diagonal direction.

14 . The display device of claim 13 , wherein

in a second sub-area of the boundary area between the first pixel area and the second pixel area, the first dummy pixel and the third dummy pixel are disposed between the second sub-pixel and the fourth sub-pixel along the second direction, and

in the second sub-area, the second dummy pixel is disposed to a portion adjacent to the first sub-pixel and the third sub-pixel along the second direction.

15 . The display device of claim 14 , wherein

in a third sub-area of the boundary area between the first pixel area and the second pixel area, the first sub-pixel, the seventh sub-pixel, and the second dummy pixel are sequentially disposed along the first diagonal direction.

16 . The display device of claim 15 , wherein

in the third sub-area, the third sub-pixel, the fourth sub-pixel, and the first dummy pixel are sequentially disposed along the second diagonal direction, and

in the third sub-area, the fifth sub-pixel, the seventh sub-pixel, and the second dummy pixel are sequentially disposed along the second diagonal direction.