Pixel arrangement structure and display panel

The invention relates to a pixel arrangement structure and a display panel. The pixel arrangement structure comprises a repeating unit, and the repeating unit is quadrangular; the repeating unit comprises two first sub-pixels, two second sub-pixels, two third sub-pixels and a fourth sub-pixel; the two first sub-pixels, the two second sub-pixels and the two third sub-pixels are arranged around theperiphery of the fourth sub-pixel, the two first sub-pixels, the two second sub-pixels and the two third sub-pixels are distributed in an axial symmetry mode relative to the same symmetry axis, and the symmetry axis passes through the center point of the fourth sub-pixel; the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel have at least three light-emitting colors, and the light-emitting colors of the first sub-pixel, the second sub-pixel and the third sub-pixel are different. According to the pixel arrangement structure, the resolution of the display panelcan be improved on the bas