The present disclosure provides a display panel and a display device, the display panel includes a substrate; a display area, defined at a surface of the substrate, the display area includes a plurality of unit pixel areas, an outer edge of one of the unit pixel areas encloses to form area A1; a photo spacer, including a main photo spacer, one end of the main photo spacer fixedly connects to the substrate, an outer edge of the other end of the main photo spacer encloses to form area A2, A1 and A2 satisfy a relationship: 0.0001≤A2/A1≤0.0004; and/or, the photo spacer includes an auxiliary photo spacer, one end of the main photo spacer fixedly connects to the substrate, an outer edge of the other end of the auxiliary photo spacer encloses to form an area A3, A1 and A3 satisfy a relationship: 1/100