Display panel and display device

1. A display panel, comprising:

a first display region;

a second display region, a density of sub-pixels of the first display region being greater than a density of sub-pixels of the second display region; and

a first transitional display region located between the first display region and the second display region; wherein

the sub-pixels of the first display region are arranged in a plurality of columns; each of the columns comprises a plurality of sub-pixels of different colors arranged alternatively; among the plurality of columns in the first display region, the sub-pixels of a same color disposed in two adjacent columns are arranged in a staggered manner;

the sub-pixels of the second display region are arranged in a plurality of columns; each of the columns comprises a plurality of sub-pixels of different colors arranged alternatively; among the plurality of columns in the second display region, the sub-pixels of a same color disposed in two adjacent columns are arranged in a staggered manner;

any two sub-pixels of a same color disposed in two adjacent columns respectively disposed in the first transitional display region and the first display region are arranged in a staggered manner, any two sub-pixels of a same color disposed in two adjacent columns respectively disposed in the first transitional display region and the second display region are arranged in a staggered manner;

an opening area of any one of the sub-pixels disposed in the first transitional display region is larger than an opening area of a sub-pixel disposed in the first display region and having a same color with the one of the sub-pixels disposed in the first transitional display region, and is smaller than an opening area of a sub-pixel disposed in the second display region and having a same color with the one of the sub-pixels disposed in the first transitional display region; and

an interval between any two closest sub-pixels of a same color arranged in two adjacent columns in the first display region is x; an interval between any two closest sub-pixels of a same color arranged in two adjacent columns respectively in the first transitional display region and the second display region is y; an interval between any two closest sub-pixels of a same color arranged in two adjacent columns in the second display region is z; wherein x≤y≤z.

2. The display panel according to claim 1 , wherein two closest sub-pixels of a same color respectively disposed in the first transitional display region and the first display region share one data line.

3. The display panel according to claim 1 , wherein the sub-pixels of a same color respectively disposed in some columns of the first display region and the first transitional display region are arranged in a same row.

4. The display panel according to claim 3 , wherein in a column direction, a size of an opening region of a sub-pixel disposed in the first transitional display region is the same as a size of an opening region of a sub-pixel disposed in the first display region and having a same color with the sub-pixel disposed in the first transitional display region.

5. The display panel according to claim 3 , wherein the sub-pixels of a same color disposed in the second display region are arranged in a plurality of rows.

6. The display panel according to claim 1 , wherein a boundary between the first display region and the first transitional display region is a straight line or a non-straight line.

7. The display panel according to claim 6 , wherein the boundary between the first display region and the first transitional display region is a non-straight line; and

in a column direction, an opening region of one of the sub-pixels disposed in the first transitional display region is aligned with an opening region of one of the sub-pixels disposed in the first display region, the one of the sub-pixels disposed in the first display region is adjacent to the one of the sub-pixels disposed in the first transitional display region.

8. The display panel according to claim 6 , wherein a distance between two sub-pixels of a same color respectively disposed in the first display region and the second display region is u, and the two sub-pixels of a same color are respectively adjacent to the sub-pixels of the first transitional display region; in a row direction, a size of an opening region of a corresponding sub-pixel disposed in the second display region and having a same color with the two sub-pixels of a same color is v; and

wherein z≤u≤(z+v).

9. The display panel according to claim 1 , further comprising a second transitional display region contiguous to the first transitional display region and the second display region respectively; wherein:

the second transitional display region is located between the first transitional display region and the second display region;

any two sub-pixels of a same color disposed in two adjacent columns respectively disposed in the second transitional display region and the first transitional display region are arranged in a staggered manner; and

any two sub-pixels of a same color disposed in two adjacent columns respectively disposed in the second transitional display region and the second display region are arranged in a staggered manner.

10. The display panel according to claim 9 , wherein an opening area of any one of the sub-pixels disposed in the second transitional display region is larger than an opening area of a sub-pixel disposed in the first transitional display region and having a same color with the sub-pixels disposed in the second transitional display region, and is smaller than an opening area of a sub-pixel disposed in the second display region and having a same color with the sub-pixels disposed in the second transitional display region.

11. The display panel according to claim 9 , wherein:

an interval between any two closest sub-pixels of a same color arranged in adjacent columns respectively in the first display region and the first transitional display region is w;

an interval between any two closest sub-pixels of a same color arranged in adjacent columns respectively in the second transitional display region and the second display region is e; and

x≤w≤e≤z.

12. The display panel according to claim 9 , wherein a distance between two closest sub-pixels of a same color respectively disposed in the first display region and the second transitional display region is g, and the two closest sub-pixels of a same color are respectively adjacent to the sub-pixels of the first transitional display region; in a row direction, a size of an opening region of a corresponding sub-pixel disposed in the second transitional display region and having a same color with the two closest sub-pixels of a same color is i; and

wherein z≤g≤(z+i).

13. The display panel according to claim 9 , wherein at least one sub-pixel disposed in the second transitional display region and at least one sub-pixel disposed in the second display region are arranged in a same column.

14. The display panel according to claim 9 , wherein in a row direction, a size of an opening region of the sub-pixel disposed in the second transitional display region is the same as a size of an opening region of the sub-pixel disposed in the second display region and having a same color with the sub-pixel disposed in the second transitional display region.

15. The display panel according to claim 9 , wherein any two closest sub-pixels of a same color respectively disposed in the second transitional display region and the second display region share one data line.

16. The display panel according to claim 1 , wherein the interval between two closest sub-pixels of a same color arranged in two adjacent columns is a distance between two closest vertices of the two closest sub-pixels of a same color arranged in two adjacent columns.

17. A display device, comprising the display panel according to claim 1 .

18. The display device according to claim 17 , wherein the display panel is an organic light-emitting display panel.

19. The display device according to claim 17 , further comprising at least one photosensitive component disposed on a rear side of the second display region, wherein external light enters the photosensitive component through the second display region.