The present disclosure relates to a display panel, a display screen, and a display terminal. The display panel includes a substrate, a pixel-defining layer disposed on the substrate, and an isolation structure disposed on the pixel-defining layer. The isolation structure includes at least two layer structures stacked in sequence along a direction perpendicular to a surface of the substrate. At least one of the at least two layer structures has a width varied continuously or intermittently along an extending direction of the isolation structure. The extending direction of the isolation structure is parallel to the surface of the substrate. The width of the layer structure refers to a size of a projection, along a direction perpendicular to the extending direction, of the layer structure on a plane coplanar with the surface of the substrate.