An embodiment of the invention discloses a display panel comprising a substrate, an organic light-emitting array positioned on a surface of the substrate and a thin packaging film covering the organic light-emitting array; the thin packaging film orderly comprises a first graphene layer, a phase difference function layer, a second graphene layer and a polarized light function layer; the first graphene layer is placed on one side, facing away from the substrate, of the organic light-emitting array and is used for blocking moisture in external environment from entering the display panel, and therefore illuminating effects of the organic light-emitting array can be prevented from being affected; the phase difference function layer, the second graphene layer and the polarized light function layer form a rotatory polarization sheet layer which is used for preventing light rays in the external environment from being reflected outward from the display panel after the light rays enter the display panel, the light rays can be prevented from entering human eyes, and display effects cannot be affected. In the display panel, the rotatory polarization sheet layer and the first graphene layer are integrated into the same thin packaging film, times of operation of orderly pasting films on the organic light-emitting array can be reduced, processing steps for the display panel are reduced, cost is lowered, and the display panel is small in thickness.