The present invention provides a display panel and a display device which can increase light use efficiency with a simple configuration. An optical modulation layer 30 provided between substrates 10 and 20 contains a polar solvent 31a, a nonpolar solvent 31b, and hydrophilic shape-anisotropic members 32, the hydrophilic substrate 20 makes contact with the polar solvent 31a, the hydrophobic substrate 10 makes contact with the nonpolar solvent 31b, a projected area of the shape-anisotropic members 32 onto the substrates 10 and 20 is changed by adjusting a magnitude of a voltage to be applied to the optical modulation layer 30.