A display panel includes an array substrate including a base substrate and a drive unit; a light-emitting functional layer placed on one side of the drive unit and electrically connected with the drive unit; a sealing film layer placed on one side of the light-emitting functional layer; and a polarization functional layer placed on a light output side of the display panel. The polarization functional layer includes a coated polarization layer. Compared with the prior art, the display panel includes less film layers, and layers of the display panel are thinner, which facilitates the thin-type design. In addition, the method for making a display panel is simple, a production cost is low, and a production efficiency is high, which is good for a large-scale production application.