A panel manufacturing method, comprising: forming a first conductive layer on a substrate (100) by means of a patterning process, the first conductive layer comprising a plurality of first conductive traces (210) disposed in a non-working area of the substrate (100) and a plurality of electrode patterns disposed in a working area of the substrate (100). A plurality of metal traces (300) are formed on the plurality of first conductive traces (210), and each of the metal traces (300) comprises a connection end (315) near the edge of the working area of the substrate (100). Also provided are a panel and a display device.