A data conversion method, a display method, a data conversion device and a display device. The data conversion method includes: performing data reorganization on original pixel data corresponding to at least one row of pixels in a display panel to obtain reorganized pixel data. In any data channel, the performing data reorganization on original pixel data corresponding to at least one row of pixels in a display panel to obtain reorganized pixel data includes: a first reorganized part in the n-th reorganized pixel data set consists of a first original part in the (n-1)-th original pixel data set, and a second reorganized part in the n-th reorganized pixel data set consists of a second original part in the n-th original pixel data set, wherein n is an integer satisfying 1