Pixel arrangement structure, display substrate, and display device

A pixel arrangement structure, a display substrate, and a display device. The pixel arrangement structure comprises a plurality of pixel sets (01); each pixel set (01) comprises a first sub-pixel (111), a second sub-pixel (112), a third sub-pixel (113), and a fourth sub-pixel (114); in the pixel set (01), a line connecting the center (C2) of the second sub-pixel (112) and the center (C3) of the third sub-pixel (113) is a first line segment (LS1); the first sub-pixel (111) and the fourth sub-pixel (114) are located between the second sub-pixel (112) and the third sub-pixel (113) and are respectively disposed at two sides of the first line segment (LS1); a line connecting the center (C1) of the first sub-pixel (111) and the center (C4) of the fourth sub-pixel (114) is a second line segment (LS2), and the length of the second line segment (LS2) is shorter than the length of the first line segment (LS1). Therefore, the present pixel arrangement structure may improve resolution and also improve display quality.