An apparatus includes a display device having a lenticular layer. The lenticular layer includes (i) a first side, (ii) a second side opposite the first side, and (iii) particles in a fluid medium between the first and second sides of the lenticular layer. The second side of the lenticular layer includes lens elements forming a lenticular array. The particles of the lenticular layer are configured to move within the fluid medium such that (i) the lens elements are filled with the particles in a first mode or (ii) the lens elements are filled with the fluid medium in a second mode. The display device is configured to operate as a directional display in one of the first and second modes and as a single display in another of the first and second modes.