Pixel arrangement structure and display substrate

1. A pixel arrangement structure, comprising:

a plurality of pixel groups, each of the plurality of pixel groups comprising one red sub-pixel, two green sub-pixels and one blue sub-pixel, the red sub-pixel and the blue sub-pixel being arranged along a first direction, the two green sub-pixels being arranged along a second direction, and a connecting line of a center of the red sub-pixel and a center of the blue sub-pixel being intersected with a connecting line of centers of the two green sub-pixels, wherein

four vertexes included in the red sub-pixel are located in a first virtual rhombus and are substantially coincident with four vertexes of the first virtual rhombus, respectively; four vertexes included in the blue sub-pixel are located in a second virtual rhombus and are substantially coincident with four vertexes of the second virtual rhombus, respectively;

each of the red sub-pixel or the blue sub-pixel has a shape of a corresponding virtual rhombus with each side of the corresponding virtual rhombus being an inwardly concaved side;

a side of the green sub-pixel that is adjacent to the inwardly concaved side is protruded towards the inwardly concaved side;

a vertex angle of the red sub-pixel and a vertex angle of the blue sub-pixel both are not larger than 90 degrees;

the first virtual rhombus has a side length of M, the vertex angle of the red sub-pixel is α1, the green sub-pixel has a first size β in a third direction which is perpendicular to a direction in which the adjacent red and green sub-pixels are arranged, and the vertex angle al of the red sub-pixel, the size β and the side length M has the following relationship: tan[(90°−α1)/2]≤(M−β)/M; and

the second virtual rhombus has a side length of N, the vertex angle of the blue sub-pixel is α2, the green sub-pixel has a second size γ in a fourth direction which is perpendicular to a direction in which the adjacent blue and green sub-pixels are arranged, and the vertex angle α2 of the blue sub-pixel, the size y and the side length N has the following relationship: tan[(90°−α2)/2]≤(N−γ)/N,

an area of the green sub-pixel is larger than an area of an ellipse with a major axis length of γ and a minor axis length of β,

a curvature of the side of the red sub-pixel is smaller than a curvature of the side of the blue sub-pixel.

2. The pixel arrangement structure according to claim 1 , wherein a minimum distance between a side of the red sub-pixel and a side of the green sub-pixel that are adjacent to each other is equal to a minimum distance between a side of the blue sub-pixel and a side of the green sub-pixel that are adjacent to each other.

3. The pixel arrangement structure according to claim 2 , wherein both the red sub-pixel and the blue sub-pixel have a shape of a corresponding virtual rhombus with each side of the corresponding virtual rhombus being inwardly concaved as a cambered side.

4. The pixel arrangement structure according to claim 2 , wherein a minimum distance between the red sub-pixel and the blue sub-pixel is substantially equal to a minimum distance between a side of the red sub-pixel and a side of the green sub-pixel that are adjacent to each other, and substantially equal to a minimum distance between a side of the blue sub-pixel and a side of the green sub-pixel that are adjacent to each other,

two diagonal lines of the first virtual rhombus are parallel to the first direction and the second direction, respectively, and two diagonal lines of the second virtual rhombus are parallel to the first direction and the second direction, respectively.

5. The pixel arrangement structure according to claim 1 , wherein a side of the green sub-pixel and a side of the red sub-pixel that are adjacent to each other have contours which are substantially complementary with each other, and

a side of the green sub-pixel and a side of the blue sub-pixel that are adjacent to each other have contours which are substantially complementary with each other.

6. The pixel arrangement structure according to claim 1 , wherein for the adjacent sides of the green sub-pixel and the red sub-pixel, the side of the green sub-pixel has a curvature larger than that of the side of the red sub-pixel; for the adjacent sides of the green sub-pixel and the blue sub-pixel, the side of the green sub-pixel has a curvature larger than that of the side of the blue sub-pixel.

7. The pixel arrangement structure according to claim 1 , wherein a vertex angle of the blue sub-pixel is smaller than a vertex angle of the red sub-pixel.

8. The pixel arrangement structure according to claim 1 , wherein a shape of the red sub-pixel and a shape of the blue sub-pixel are similar patterns.

9. The pixel arrangement structure according to claim 8 , wherein the green sub-pixel comprises a long axis and a short axis,

the long axis is parallel to an arrangement direction of the green sub-pixel and the red sub-pixel, and

the short axis is parallel to an arrangement direction of the green sub-pixel and the blue sub-pixel.

10. The pixel arrangement structure according to claim 9 , wherein, wherein an area of each blue sub-pixel and an area of each red sub-pixel both are greater than an area of each green sub-pixel.

11. The pixel arrangement structure according to claim 9 , wherein for the green sub-pixel and the blue sub-pixel that are adjacent to each other, a connecting line that connects two points on adjacent sides of the green sub-pixel and the blue sub-pixel and that is parallel to a direction from a center of the green sub-pixel to a center of the blue sub-pixel has a length which is gradually increased in a direction from centers of the adjacent sides to both ends of the adjacent sides.

12. The pixel arrangement structure according to claim 1 , wherein one of the red sub-pixel and the blue sub-pixel has a shape of a corresponding virtual rhombus with each side of the corresponding virtual rhombus being inwardly concaved as a cambered side, and

each of sides of the other one of the red sub-pixel and the blue sub-pixel is substantially a straight side.

13. The pixel arrangement structure according to claim 1 , wherein for the blue sub-pixel and the green sub-pixel that are adjacent to each other, a direction from a center of the green sub-pixel to a center of the blue sub-pixel is substantially perpendicular to the length direction of the green sub-pixel, and

for the red sub-pixel and the green sub-pixel that are adjacent to each other, a direction from a center of the green sub-pixel to a center of the red sub-pixel is substantially perpendicular to the width direction of the green sub-pixel.

14. The pixel arrangement structure according to claim 13 , wherein for the blue sub-pixel and the green sub-pixel that are adjacent to each other, a minimum distance between two sides of the blue sub-pixel that are opposite to each other along the length direction of the green sub-pixel is greater than the maximum size of the green sub-pixel, and

for the red sub-pixel and the green sub-pixel that are adjacent to each other, a minimum distance between two sides of the red sub-pixel that are opposite to each other along the width direction of the green sub-pixel is greater than a size of the green sub-pixel along the width direction.

15. The pixel arrangement structure according to claim 1 , wherein the vertex angle of the red sub-pixel is in a range from 64 degrees to 90 degrees, and the vertex angle of the blue sub-pixel is in a range from 60 degrees to 90 degrees.

16. A display substrate, comprising:

a base substrate; and

the pixel arrangement structure according to claim 1 , located on the base substrate.

17. A pixel arrangement structure, comprising:

a plurality of pixel groups, each of the plurality of pixel groups comprising one red sub-pixel, two green sub-pixels and one blue sub-pixel, the red sub-pixel and the blue sub-pixel being arranged along a first direction, the two green sub-pixels being arranged along a second direction, and a connecting line of a center of the red sub-pixel and a center of the blue sub-pixel being intersected with a connecting line of centers of the two green sub-pixels, wherein

four vertexes included in the red sub-pixel are located in a first virtual rhombus and are substantially coincident with four vertexes of the first virtual rhombus, respectively; four vertexes included in the blue sub-pixel are located in a second virtual rhombus and are substantially coincident with four vertexes of the second virtual rhombus, respectively;

the red sub-pixel has a shape of square with rounded angles, the blue sub-pixel has a shape of a corresponding virtual rhombus with each side of the corresponding virtual rhombus being an inwardly concaved side;

a side of the green sub-pixel that is adjacent to the inwardly concaved side is protruded towards the inwardly concaved side;

a vertex angle of the red sub-pixel and a vertex angle of the blue sub-pixel both are not larger than 90 degrees;

the first virtual rhombus has a side length of M, the vertex angle of the red sub-pixel is α1, the green sub-pixel has a first size β in a third direction which is perpendicular to a direction in which the adjacent red and green sub-pixels are arranged, and the vertex angle al of the red sub-pixel, the size β and the side length M has the following relationship: tan[(90°−α1)/2]≤(M−β)/M; and

the second virtual rhombus has a side length of N, the vertex angle of the blue sub-pixel is α2, the green sub-pixel has a second size γ in a fourth direction which is perpendicular to a direction in which the adjacent blue and green sub-pixels are arranged, and the vertex angle α2 of the blue sub-pixel, the size y and the side length N has the following relationship: tan[(90°−α2)/2]≤(N−γ)/N,

an area of the green sub-pixel is larger than an area of an ellipse with a major axis length of γ and a minor axis length of β.