Display panel, display panel manufacturing method, and display screen

A display panel, comprising:

• a substrate;
• a plurality of sub-pixel regions disposed on the substrate, each of the sub-pixel regions comprising a first region and a second region, wherein the first region is provided with a buffer layer and a pixel circuit layer disposed on the substrate;
• a first electrode, disposed on the substrate corresponding to the second region of each of the sub-pixel regions and directly contacting the substrate corresponding to the second region, wherein the second region comprises a light emitting area and a non-light emitting area, the first electrode is disposed on the light emitting area;
• a lead, disposed on the substrate and comprising at least one of a scan line, a data line and a connection line disposed in the pixel circuit layer;
• and
• an inorganic film layer, disposed on the substrate where a projection of the lead is overlapped and comprising at least one of a gate insulation layer, an interlayer insulation layer and the buffer layer.