Display panel and display apparatus

1. A display panel having a first display region and a second display region, the display panel comprising

a sub-pixel array comprising a plurality of sub-pixels arranged in an array; and

gate signal lines extending in a first direction and data lines extending in a second direction, the first direction intersecting with the second direction,

wherein the plurality of sub-pixels is distributed in the first display region and the second display region,

wherein a non-light-emitting region in the second display region has a greater light transmittance than a non-light-emitting region in the first display region,

wherein a distribution density of sub-pixels of the plurality of sub-pixels in the second display region is smaller than a distribution density of sub-pixels of the plurality of sub-pixels in the first display region,

wherein among sub-pixels emitting a same color of the plurality of sub-pixels in the first display region and the second display region, a light-emitting area of a sub-pixel in the second display region is larger than a light-emitting area of a sub-pixel in the first display region, and

wherein among the sub-pixels emitting the same color of the plurality of sub-pixels in the first display region and the second display region, a width in the first direction of a sub-pixel in the second display region is R 1 times a width in the first direction of a sub-pixel in the first display region, and a width in the second direction of a sub-pixel in the second display region is R 2 times a width in the second direction of a sub-pixel in the first display region; and a ratio of a center-to-center distance between two adjacent sub-pixels in the first direction in the second display region to a center-to-center distance between two adjacent sub-pixels in the first direction in the first display region is R 3 , and a ratio of a center-to-center distance between two adjacent sub-pixels in the second direction in the second display region to a center-to-center distance between two adjacent sub-pixels in the second direction in the first display region is R 4 , where 0.8≤(R 1 ×R 2 )/(R 3 ×R 4 )≤1.2.

2. The display panel according to claim 1 , wherein the light transmittance of the non-light-emitting region in the first display region is T 1 , and the light transmittance of the non-light-emitting region in the second display region is T 2 , where T 1 and T 2 satisfy: 3≤T 2 /T 1 ≤50.

3. The display panel according to claim 1 , wherein the plurality of sub-pixels at least comprises red sub-pixels, green sub-pixels, and blue sub-pixels, wherein

a ratio of a light-emitting area of a green sub-pixel in the second display region to a light-emitting area of a green sub-pixel in the first display region is smaller than a ratio of a light-emitting area of a red sub-pixel in the second display region to a light-emitting area of a red sub-pixel in the first display region and/or a ratio of a light-emitting area of a blue sub-pixel in the second display region to a light-emitting area of a blue sub-pixel in the first display region.

4. The display panel according to claim 1 , wherein each of the plurality of sub-pixels comprises an anode and a pixel circuit, wherein

for each of the plurality of sub-pixels in the second display region, the anode and the pixel circuit extend along a same direction, and in a direction perpendicular to a plane of the display panel, the anode and the pixel circuit overlap each other.

5. The display panel according to claim 4 , wherein for each of the plurality of sub-pixels in the second display region, the anode completely covers the pixel circuit in at least one direction of the first direction or the second direction.

6. The display panel according to claim 4 , wherein among the sub-pixels emitting the same color of the plurality of sub-pixels in the first display region and the second display region, a width-to-length ratio of a driving transistor in the pixel circuit of a sub-pixel in the second display region is greater than a width-to-length ratio of a driving transistor in the pixel circuit of a sub-pixel in the first display region.

7. The display panel according to claim 4 , wherein at least two adjacent sub-pixels of the plurality of sub-pixels distributed in the second display region share one pixel circuit.

8. The display panel according to claim 1 , wherein a center-to-center distance between two adjacent sub-pixels in the first direction in the first display region is P 11 , and a center-to-center distance between two adjacent sub-pixels in the first direction in the second display region is P 12 , where P 11 and P 12 satisfy: P 12 =R 3 ×P 11 , and R 3 ≥1; and

a center-to-center distance between two adjacent sub-pixels in the second direction in the first display region is P 21 , and a center-to-center distance between two adjacent sub-pixels in the second direction in the second display region is P 22 , where P 21 and P 22 satisfy: P 22 =R 4 ×P 21 , and R 4 ≥1.

9. The display panel according to claim 8 , wherein among the sub-pixels emitting the same color of the plurality of sub-pixels in the first display region and the second display region, a width in the first direction of a sub-pixel in the first display region is W 11 , and a width in the first direction of a sub-pixel in the second display region is W 12 , where W 11 and W 12 satisfy: W 11 =W 12 ; and

a width in the second direction of a sub-pixel in the first display region is W 21 and a width in second direction of a sub-pixel in the second display region is W 22 , where W 21 and W 22 satisfy: W 22 =M 1 ×W 21 , and M 1 >1.

10. The display panel according to claim 9 , wherein M 1 =4 and R 3 ×R 4 =4.

11. The display panel according to claim 8 , wherein among the sub-pixels emitting the same color of the plurality of sub-pixels in the first display region and the second display region, a width in the first direction of a sub-pixel in the first display region is W 11 , and a width in the first direction of a sub-pixel in the second display region is W 12 , where W 11 and W 12 satisfy: W 12 =N 1 ×W 11 and N 1 >1; and

a width in the second direction of a sub-pixel in the first display region is W 21 and a width in second direction of a sub-pixel in the second display region is W 22 , where W 21 and W 22 satisfy: W 21 =W 22 .

12. The display panel according to claim 11 , wherein N 1 =4 and R 3 ×R 4 =4.

13. The display panel according to claim 8 , wherein among the sub-pixels emitting the same color of the plurality of sub-pixels in the first display region and the second display region, a width in the first direction of a sub-pixel in the first display region is W 11 , and a width in the first direction of a sub-pixel in the second display region is W 12 , where W 11 and W 12 satisfy: W 12 =M 2 ×W 11 , and M 2 >1; and

a width in the second direction of a sub-pixel in the first display region is W 21 , and a width in second direction of a sub-pixel in the second display region is W 22 , where W 21 and W 22 satisfy: W 21 =N 2 ×W 22 , and N 2 >1.

14. The display panel according to claim 13 , wherein M 2 =2, N 2 =2, and R 3 ×R 4 =4.

15. The display panel according to claim 1 , wherein a grooved or an excavated structure is provided in a non-display region located within the second display region.

16. A display apparatus, comprising the display panel according to claim 1 .

17. The display apparatus according to claim 16 , further comprising a face recognition device disposed in the second display region, and the face recognition device is configured to receive infrared rays through a light-transmitting region of the second display region to recognize a human face.

18. A display panel having a first display region and a second display region, the display panel comprising:

a sub-pixel array comprising a plurality of sub-pixels arranged in an array; and

gate signal lines extending in a first direction and data lines extending in a second direction, the first direction intersecting with the second direction,

wherein the plurality of sub-pixels is distributed in the first display region and the second display region,

wherein a non-light-emitting region in the second display region has a greater light transmittance than a non-light-emitting region in the first display region,

wherein a distribution density of sub-pixels of the plurality of sub-pixels in the second display region is smaller than a distribution density of sub-pixels of the plurality of sub-pixels in the first display region,

wherein among sub-pixels emitting a same color of the plurality of sub-pixels in the first display region and the second display region, a light-emitting area of a sub-pixel in the second display region is larger than a light-emitting area of a sub-pixel in the first display region, and

wherein the plurality of sub-pixels at least comprises red sub-pixels, green sub-pixels, and blue sub-pixels, wherein

a ratio of a light-emitting area of a green sub-pixel in the second display region to a light-emitting area of a green sub-pixel in the first display region is smaller than a ratio of a light-emitting area of a red sub-pixel in the second display region to a light-emitting area of a red sub-pixel in the first display region and/or a ratio of a light-emitting area of a blue sub-pixel in the second display region to a light-emitting area of a blue sub-pixel in the first display region.