Display panel, display device and display method of display panel

The invention discloses a display panel, a display device and a display method of the display panel. Under a wide-visual angle display mode, a first signal is applied to a first electrode and a secondelectrode, long axis of liquid crystal molecule and dye molecule in a first liquid crystal layer is perpendicular to a plane wherein a first substrate is located, a relatively large included angle isgenerated between a polarization direction of emergent light of a first display module and the long axis of the dye molecule, a light ray is not absorbed or a few amount of light ray is absorbed, anddisplay is performed in a wide-visual angle mode; under a narrow-visual angle display mode, a second signal is applied to the first electrode and the second electrode, and an included angle between the long axis of the liquid crystal molecule and the dye molecule in a second liquid crystal layer and the plane where the first substrate is located is 30-60 degrees. The polarization direction of a part of light of the first d