A method of manufacturing a display panel comprises a first substrate is manufactured, a plurality of scanning lines and shorting bars are formed on the first base substrate, the scanning lines are located in the first display area and extend to the first peripheral wiring area, and the shorting bars are located in the first cutting area, a shorting bar is connected to one end of a plurality of odd-numbered scanning lines, or a shorting bar is connected to one end of a plurality of even-numbered scanning lines, to make the odd-numbered scanning lines each in an electrical connection with at least another odd-numbered scanning line, or the even-numbered scanning lines each in an electrical connection with at least another even-numbered scanning line.