OLED (Organic Light Emitting Diode) pixel arrangement structure

The invention provides an OLED (Organic Light Emitting Diode) pixel arrangement structure. The OLED pixel arrangement structure comprises an R sub-pixel group, a G sub-pixel group and a B sub-pixel group; the R sub-pixel group is formed by plural R sub-pixels; the G sub-pixel group is formed by plural G sub-pixels; the B sub-pixel group is formed by plural B sub-pixels; the R sub-pixel group, the G sub-pixel group and the B sub-pixel group are arranged separately to enable every adjacent R sub-pixel, G sub-pixel and B sub-pixel which are arranged in the R sub-pixel group, the G sub-pixel group and the B sub-pixel group respectively to form a pixel. According to the OLED pixel arrangement structure, the same color of sub-pixels are gathered into a sub-pixel unit and accordingly the opening rate of a metal mask template can be improved under the same resolution of an OLED display screen in comparison with the single sub-pixel in the prior art, the problem that the manufacture of the metal mask template is difficult is solved, or every sub-pixel in one sub-pixel unit can be small under the same opening rate of the metal mask template so as to well improve the resolution of the OLED display screen.