The disclosure discloses a display panel and a display device, and the display panel includes: a substrate; a display area, including a plurality of signal lines on a first side of the substrate; a bending area, including a plurality of connection lines on a second side of the substrate; and a wiring area, including a plurality of lead wires for transmitting display signals on a third side of the substrate; where the plurality of connection lines electrically connects the plurality of signal lines and the plurality of lead wires; the bending area includes fourth sides of the substrate; and the second side of the substrate is intersected with the fourth sides of the substrate; where the fourth sides of the substrate includes at least one transitional side, and the at least one transitional side is concaved toward the connection lines of the bending area.