According to one embodiment, an image display apparatus includes a rearranging module, a scaling module, a display, and a parallax controller. The rearranging module is configured to rearrange a plurality of first parallax image signals in series in accordance with colors of the first parallax image signals to generate a second parallax image signal. The scaling module is configured to scale the second parallax image signal in a horizontal direction to generate a third parallax image signal. The display is configured to display at least a part of the third parallax image signal. The parallax controller is configured to output light emitted from the display to a specific direction.