An OLED pixel structure is provided, it includes a plurality of pixel units arranged in a matrix form. Each pixel unit includes at least two subpixels arranged in an identical row and adjacent to each other, or at least two subpixels arranged in an identical column and adjacent to each other. Each subpixel includes a transparent region and a nontransparent region where a display element is arranged. In each pixel unit, the nontransparent regions of the at least two subpixels arranged in an identical row and adjacent to each other have their central lines in a row direction located on different straight lines parallel to each other, or the nontransparent regions of the at least two subpixels arranged in an identical column and adjacent to each other have their central lines in a column direction located on different straight lines parallel to each other.