Display device and electronic apparatus

1. A display device comprising:

a white sub-pixel;

a blue sub-pixel that is adjacent to the white sub-pixel;

a red sub-pixel that is adjacent to one of the white sub-pixel or the blue sub-pixel;

a green sub-pixel that is adjacent to the other one of the white sub-pixel or the blue sub-pixel; and

a light shielding portion that includes a first part disposed between the white sub-pixel and the red sub-pixel or the green sub-pixel, and a second part disposed between the white sub-pixel and the blue sub-pixel, such that, due to a placement of the light shielding portion, an opening width of a first pixel area of the blue sub-pixel, an opening width of a third pixel area of the red sub-pixel, and an opening width of a fourth pixel area of the white-sub pixel are reduced wherein

the opening width of the first pixel area of the blue sub-pixel in a first direction is rendered less than the opening width of the second pixel area of the green sub-pixel in the first direction and is rendered less than the opening width of a third pixel area of the red sub-pixel in the first direction,

an opening width of the first pixel area of the blue sub-pixel in a second direction is rendered greater than an opening width of a fourth pixel area of the white sub-pixel in the second direction,

the second direction is perpendicular to the first direction, and

each of the white, the red, the blue and the green sub-pixels respectively includes a light emitting element.

2. The display device according to claim 1 , wherein

the entire width of the blue sub-pixel in the second direction is less than the entire width of the green sub-pixel in the second direction.

3. The display device according to claim 1 , wherein

the opening width of the fourth pixel area of the white sub-pixel in a first direction is less than the opening width of the second pixel area of the green sub-pixel in the first direction and is less than the opening width of the third pixel area of the red sub-pixel in the first direction, and

the opening width of the fourth pixel area of the white sub-pixel in a second direction is less than the opening width of the second pixel area of the green sub-pixel in the second direction and is less than the opening width of the third pixel area of the red sub-pixel in the second direction.

4. The display device according to claim 1 , wherein

the opening width of the second pixel area of the green sub-pixel in the second direction is greater than the entire width of the red sub-pixel in the second direction.

5. The display device according to claim 1 , wherein

the opening widths of the third and second pixel areas of the red and the green sub-pixels, respectively, in the first direction are substantially the same.

6. The display device according to claim 1 , wherein the green sub-pixel is adjacent to the blue sub-pixel.

7. The display device according to claim 1 , wherein

the red sub-pixel is adjacent to the white sub-pixel at a first side of the white sub-pixel, and

the blue sub-pixel is adjacent to the white sub-pixel at a second side of the white sub-pixel that is different from the first side.

8. The display device according to claim 7 , wherein

the first side is perpendicular to the second side.

9. The display device according to claim 7 , wherein

the light shielding portion further includes a third part disposed on a third side of the white sub-pixel, the third side being different from the first and the second sides, and

the third part protrudes toward a direction perpendicular to the third side.

10. The display device according to claim 9 , further includes another red sub-pixel adjacent to the white sub-pixel at the third side,

wherein the third part protrudes in a direction toward the other red sub-pixel from the white sub-pixel.

11. A display device comprising:

a plurality of sub-pixel groups arranged in a matrix form; and

a light shielding portion disposed on a light extraction side of the sub-pixel groups,

wherein each of the sub-pixel groups include:

a white sub-pixel;

a blue sub-pixel that is adjacent to the white sub-pixel;

a red sub-pixel including a red color filter, and being adjacent to one of the white sub-pixel or the blue sub-pixel; and

a green sub-pixel including a green color filter, and being adjacent to the other one of the white sub-pixel or the blue sub-pixel, wherein

the light shielding portion includes a first part disposed between the white sub-pixel and the red sub-pixel or the green sub-pixel, and a second part disposed between the white sub-pixel and the blue sub-pixel such that, due to a placement of the light shielding portion, an opening width of a first pixel area of the blue sub-pixel, an opening width of a third pixel area of the red sub-pixel, and an opening width of a fourth pixel area of the white-sub pixel are reduced

the opening width of the first pixel area of the blue sub-pixel in a first direction is rendered less than the opening width of the second pixel area of the green sub-pixel in the first direction and is rendered less than the opening width of a third pixel area of the red sub-pixel in the first direction,

an opening width of the first pixel area of the blue sub-pixel in a second direction is rendered greater than an opening width of a fourth pixel area of the white sub-pixel in the second direction,

the second direction is perpendicular to the first direction, and

each of the white, the red, the blue and the green sub-pixels respectively includes a light emitting element.

12. The display device according to claim 11 , wherein the opening width of the first pixel area of the blue sub-pixel in the second direction is less than the opening width of the second pixel area of the green sub-pixel in the second direction.

13. The display device according to claim 11 , wherein the opening width of the second pixel area green sub-pixel in the second direction is greater than the opening width of the third pixel area red sub-pixel in the second direction.

14. The display device according to claim 11 , wherein

the light shielding portion has a plurality of light shielding films, and

each of the light shielding films surrounds a respective white sub-pixel of each of the sub-pixel groups.

15. The display device according to claim 14 , wherein the first part and the second part are portions of one of the light shielding films.

16. The display device according to claim 11 , wherein

the red sub-pixel is adjacent to the white sub-pixel at a first side of the white sub-pixel, and

the blue sub-pixel is adjacent to the white sub-pixel at a second side of the white sub-pixel that is different from the first side.

17. The display device according to claim 16 , wherein

the light shielding portion further includes a third part disposed on a third side of the white sub-pixel, the third side being different from the first and the second sides, and

the third part protrudes toward a direction perpendicular to the third side.

18. The display device according to claim 11 , wherein the light emitting element of each of the white, the red, the blue and the green sub-pixels respectively includes:

a first electrode electrically connected to a drive transistor,

a second electrode, and

a light emitting layer disposed between the first and the second electrodes.

19. The display device according to claim 18 , wherein the drive transistor, the first electrode, the light emitting layer, the second electrode, a corresponding one of the red, the green or the blue color filters, and the light shielding portion are disposed on a substrate in this order.

20. The display device according to claim 11 , wherein each of the sub-pixel groups corresponds to respective one of pixels, each of the pixels consisting of the white, the red, the blue and the green sub-pixels.