A display panel and a method of manufacturing the display panel are provided. The display panel includes a substrate and a transistor layer. The transistor array layer includes a first metal layer disposed above the substrate. The first metal layer includes a gate, a second metal layer disposed above the first metal layer. The second metal layer includes a source, a drain, and a metal trace, and at least one repair part disposed on both sides of the metal trace. The repair part and the metal trace are configured to form a signal trace.