Display panel, display device and method for manufacturing display panel

A display panel, comprising a base substrate, wherein the base substrate comprises a display area and a functional area, the display area is located on one side of the functional area, the functional area comprises a light-transmitting region, the light-transmitting region comprises a plurality of pixel units;

• each of the plurality of pixel units comprises at least one sub-pixel, each of the plurality of pixel units further comprises a cathode, orthographic projections of a plurality of cathodes onto the base substrate are separated from each other, and an orthographic projection of an effective light-emitting area of each of the sub-pixels onto the base substrate is within an orthographic projection of the cathode of a corresponding one of the plurality of pixel units onto the base substrate;
• and
• the display panel further comprises connection structures, the plurality of cathodes are connected via the connection structures, and the plurality of cathodes and the connection structures in the light-transmitting region form a mesh structure, the mesh structure comprises a plurality of openings, each of the plurality of openings is surrounded by the cathodes and the connection structures, and the plurality of cathodes are configured to provide a same common voltage.