A pixel array, a display device and a display method are provided. The pixel array comprises: a plurality of sub-pixels arranged along a row direction and a column direction, the plurality of sub-pixels being defined by a plurality of data lines and a plurality of gate lines intersecting with each other, the data lines extending along the row direction, and the gate lines extending along the column direction, wherein, each row of sub-pixels include a plurality of repeating units arranged sequentially, the repeating unit including sub-pixels of three different colors; for each column of the sub-pixels, any two adjacent sub-pixels are of different colors; and each of the sub-pixels has a length L along the row direction and a height H along the column direction, the length being less than or equal to the height, and in any two adjacent sub-pixels in each column of the sub-pixels, a lower row sub-pixel shifts by a distance D with respect to a previous row sub-pixel along the row direction, where −L