Terminals and display screens

1. A display screen, comprising: a display area, the display area comprising at least two display regions;

wherein the at least two display regions comprise a first display region and a second display region, and a pixel density of the first display region is lower than a pixel density of the second display region;

wherein the first display region comprises a first pixel including a plurality of sub-pixels arranged in parallel;

wherein the second display region comprises at least a second pixel including a first sub-region and a second sub-region, the first sub-region is adjacent to the second sub-region in a width direction of the display screen, the first sub-region comprises a first sub-pixel and a second sub-pixel, the second sub-pixel is adjacent to the first sub-pixel in a length direction of the display screen, the second sub-region comprises a third sub-pixel such that the third sub-pixel is adjacent to both the first sub-pixel and the second sub-pixel in the width direction of the display screen;

wherein the second display region comprises a plurality of the second pixels,

two of the second pixels arranged along the width direction having a same pixel arrangement; and

arrangements of the first, second sub-pixels and the third sub-pixel, in two of the second pixels arranged along the length direction, are opposite.

2. The display screen according to claim 1 , wherein the pixel density of the first display region is lower than or equal to a maximum pixel density of the first display region in a transparent state when the first display region is unlit.

3. The display screen according to claim 1 , wherein the pixel density of the first display region is less than or equal to 150 PPI.

4. The display screen according to claim 1 , wherein a difference between the pixel density of the second display region and the pixel density of the first display region is at least 300 PPI.

5. The display screen according to claim 1 , wherein the display screen comprises a first end and a second end opposite to each other, the first display region is located at the first end of the display screen, and the second display region is located at the second end of the display screen.

6. The display screen according to claim 5 , wherein the first and the second display regions are provided along a direction of length of the display screen.

7. The display screen according to claim 1 , wherein the first display region is surrounded by the second display region.

8. The display screen according to claim 1 , wherein an area of the first display region is less than an area of the second display region.

9. The display screen according to claim 1 , wherein the number of transistors in a pixel circuit of the first display region is less than the number of transistors in a pixel circuit of the second display region.

10. The display screen according to claim 1 , wherein a pixel circuit of the first display region is a 2T1C pixel circuit, and a pixel circuit of the second display region is a 7TIC pixel circuit.

11. The display screen according to claim 1 , wherein each pixel of the first display region and the second display region comprises three sub-pixels, the sub-pixels included in each pixel of the first display region are arranged in parallel, and two sub-pixels included in each pixel of the second display region are arranged in parallel on one side of another sub-pixel included in the pixel.

12. The display screen according to claim 1 , wherein the number of the first display region is more than one.

13. The display screen according to claim 1 , wherein the first display region is configured to accommodate a front device selected from the group consisting of a front camera, a light sensor, and a product identification.