OLED pixel structure

The invention discloses an OLED pixel structure, and the OLED pixel structure comprises a plurality of repetitive units; each repetitive unit comprises six sub-pixel groups arranged in two rows, the first row orderly comprises a first sub-pixel group, a second sub-pixel group and a third sub-pixel group, the second row orderly comprises a third sub-pixel group, a first sub-pixel group and a second sub-pixel group, and the second row has the staggered distance corresponding to the first row, the distance is 1/3 width of the sub-pixel group to 2/3 width of the sub-pixel group; the first sub-pixel group comprises three first sub-pixels, the second sub-pixel group comprises three second sub-pixels, the third sub-pixel group comprises three third sub-pixels, the first sub-pixel group, the second sub-pixel group or the third sub-pixel group are corresponding to one opening on the mask on size. The screen resolution can be improved by adopting the technical scheme.