Organic light emitting display panel, manufacturing method therefor and display device

A manufacturing method for an organic light emitting display panel, comprising:

• providing a substrate with a light emitting region and a non-light emitting region;
• forming a planarization layer and an auxiliary electrode on a same side of the substrate, wherein the auxiliary electrode is in the non-light emitting region, and an orthographic projection of at least part of the auxiliary electrode on the substrate and an orthographic projection of the planarization layer on the substrate do not overlap;
• forming a plurality of independent first electrodes on a side of the planarization layer away from the substrate;
• forming a pixel defining layer on a side of the first electrodes away from the substrate, wherein the pixel defining layer is provided with pixel opening regions from which the first electrodes are exposed and a first through hole from which the auxiliary electrode is exposed;
• forming an organic light emitting layer covering a whole surface on a side of the pixel defining layer away from the substrate;
• shielding the organic light emitting layer with a mask, wherein the mask comprises an opening region and a shielding region, the opening region corresponds to the auxiliary electrode, and the shielding region corresponds to other regions;
• irradiating the opening region with laser, and removing a part of the organic light emitting layer corresponding to the opening region, such that the organic light emitting layer covers part of the pixel defining layer, and an orthographic projection of the organic light emitting layer on the substrate and an orthographic projection of the auxiliary electrode on the substrate do not overlap;
• forming a lap joint electrode film layer on a side of the mask away from the substrate, wherein a part of the lap joint electrode film layer in the shielding region of the mask is disconnected from a part of the lap joint electrode film layer in the opening region;
• removing the mask, wherein a lap joint electrode is formed in the part of the lap joint electrode film layer in the opening region;
• and
• forming a second electrode covering a whole surface on a side of the organic light emitting layer away from the substrate, wherein the second electrode is coupled to the auxiliary electrode through the lap joint electrode.