Display Panel, Display Device, and Tiled Display Device

A display panel, comprising:

• a substrate, including a first surface and a second surface arranged oppositely, and a plurality of first side surfaces connecting the first surface and the second surface, wherein the plurality of first side surfaces include at least one selected first side surface;
• a bridge structure, disposed on the second surface and including a third surface and a fourth surface arranged oppositely, and a plurality of second side surfaces connecting the third surface and the fourth surface, the third surface being closer to the substrate than the fourth surface, wherein the plurality of second side surfaces include at least one selected second side surface, and each selected second side surface corresponds to one selected first side surface;
• and the third surface and the fourth surface have a first spacing;
• a plurality of back electrodes, arranged side by side at intervals on the fourth surface;
• and
• a plurality of connecting leads, arranged side by side at intervals, wherein each connecting lead includes a first portion located on a side of the first surface, a second portion located on a side of the selected first side surface, and a third portion located on a side of the second surface;
• and the third part of each connecting lead is electrically connected to one back electrode, and the third part of the connecting lead includes a portion located on the second surface, a portion located on the selected second side surface, and a portion located on a side of the fourth surface;
• wherein a first common edge is an intersection line of the selected second side surface and the fourth surface, and a second common edge is an intersection line of the selected second side surface and the third surface;
• and an orthographic projection of the first common edge on the third surface and an orthographic projection of the second common edge on the third surface have a second spacing, and a ratio of the first spacing to the second spacing is in a range of 0.27 to 1.73;
• and
• a distance between the second common edge and the selected first side surface is a third spacing, and a value of the third spacing is in a range of 0.5 mm to 2.0 mm.