To achieve proper 3D display using two screens.

A mobile communication terminal 1 is provided with casings 11 and 12 each provided with display parts 160A, 160B. The display parts 160A, 160B each have a 3D display function. A control part of the mobile communication terminal 1 detects whether the mobile communication terminal 1 is opened vertically or horizontally, and detects an opening angle between the casings 11 and 12. When the 3D display is performed in a horizontally opened state, the visual recognition state of the 3D display is changed when the opening angle is changed. Thus, the control part of the mobile communication terminal 1 calculates a view angle in accordance with the detected opening angle, and changes a parameter used in the 3D display so that the satisfactory visual recognition state is maintained even when the opening angle is changed.