Display panel and display apparatus

A display panel, having a display region and a peripheral region surrounding the display region;

• the display panel comprising:
• a substrate;
• a first metal layer disposed on the substrate, the first metal layer including a signal line pattern located in the peripheral region;
• a planarization layer disposed on a side of the first metal layer away from the substrate, the planarization layer including at least one opening located in the peripheral region;
• and
• a retaining wall structure located in the peripheral region and surrounding the display region, at least a portion of the retaining wall structure being located in the at least one opening, wherein
• the signal line pattern includes one or more through holes, an orthogonal projection of the one or more through holes on the substrate is located within an orthogonal projection of the opening on the substrate, and is located on at least one of a side of an orthogonal projection of the retaining wall structure on the substrate proximate to the display region or a side of the orthogonal projection of the retaining wall structure on the substrate away from the display region.