OLED display panel and display device having same

The invention discloses an OLED display panel and a display device with the same. The OLED display panel comprises a substrate, a pixel layer and an interval supporting layer; the pixel layer is arranged on one side of the thickness of the substrate and comprises a plurality of pixel unit groups; the plurality of pixel unit groups are sequentially arranged along a first direction; and the intervalsupporting layer and the pixel layer are both arranged on the same side of the thickness of the substrate and are both arranged on the surface of the substrate. The interval supporting layer comprises a plurality of supporting block sets. The multiple supporting block sets are sequentially arranged in the first direction. The thickness of the supporting block is greater than that of the third sub-pixel, the supporting block is suitable for being supported between the substrate and the mask plate to isolate the substrate from the mask plate when the mask plate is used for evaporation to form the third sub-pixel, and a