Electroluminescent display panel, method for fabricating the same and display device

A display device, comprising an electroluminescent display panel, wherein the electroluminescent display panel comprises:

• a base substrate;
• a pixel definition layer located on the base substrate and comprising a plurality of opening regions for defining light-emitting areas of sub-pixels;
• and
• light-emitting function layers, which cover the plurality of opening regions in a one-to-one correspondence manner, of the sub-pixels;
• wherein the plurality of opening regions comprise:
• normally-shaped opening regions;
• and
• abnormally-shaped opening regions at an edge of an abnormally-shaped display area;
• a line connecting edges, which are proximate to a non-display area, of the abnormally-shaped opening regions constitutes a boundary line of the abnormally-shaped display area;
• an area of an abnormally-shaped opening region for defining a sub-pixel having a light-emitting color is smaller than an area of a normally-shaped opening region for defining a sub-pixel having the light-emitting color;
• a light-emitting function layer corresponding to the abnormally-shaped opening region and a light-emitting function layer corresponding to the normally-shaped opening region have equal areas and are of same shape;
• and
• the area of the abnormally-shaped opening region is smaller than an area of a hollow region of a fine metal mask (FMM) for fabricating the light-emitting function layer corresponding to the abnormally-shaped opening region.