Pixel regions having curved surfaces between first and second definition layers

A manufacturing method of a display base plate, wherein the method comprises:

• providing a substrate;
• forming a first electrode layer on the substrate;
• forming a first pixel definition layer and a second pixel definition layer on the first electrode layer;
• wherein, the first pixel definition layer divides the substrate into a plurality of pixel regions, each of the plurality of pixel regions comprises a plurality of subpixel regions distributed along a first direction, and two adjacent instances of the plurality of subpixel regions are separated by the second pixel definition layer;
• in the first direction, surfaces of each of the plurality of pixel regions in contact with the first pixel definition layer comprise a plurality of first curved surfaces and a plurality of second curved surfaces, for a same pixel region, any two adjacent instances of the plurality of first curved surfaces are connected directly, and two adjacent instances of the plurality of second curved surfaces are connected directly;
• or any two adjacent instances of the plurality of first curved surfaces are connected by a first connection part, any two adjacent instances of the plurality of second curved surfaces are connected by a second connection part;
• and
• the first curved surfaces and second curved surfaces corresponding to each pixel region are set to protrude toward another pixel region adjacent to the pixel region in a second direction that is perpendicular to the first direction;
• wherein the second pixel definition layer comprises first pixel definition structures and second pixel definition structures disposed in each of the plurality of pixel regions;
• each of the first pixel definition structures is disposed between the first curved surface and the second curved surface, and located at a maximum spacing between the first curved surface and the second curved surface along the second direction;
• and
• one end of each of the second pixel definition structures is located at a connection position of two adjacent instances of the plurality of first curved surfaces, the other end of each of the second pixel definition structures is located at a connection position of two adjacent instances of the plurality of second curved surfaces, and a line connecting two ends of each of the second pixel definition structures is located in the second direction.