The information processing apparatus generates email information (or display contents) to be displayed on a display apparatus and outputs the generated email information to the display apparatus that is a 3D image display apparatus for displaying a 3D image observable by an observer on the basis of binocular parallax. The information processing apparatus updates the display contents to be displayed on the display apparatus in accordance with an operation input. The information processing apparatus outputs email information display (a first display state) or email information display (a second display state) from a display output block to the display apparatus. On the basis of an input operation, the information processing apparatus switches, through a switching block, a display state of the email information to be displayed on the display apparatus from the email information display (the first display state) to the email information display (the second display state).