Patent ID: 7557800

Claim:
A display apparatus for displaying a composite image of a first content and a second content on a display screen such that an image of the first content and the second content are simultaneously viewable in a full-screen mode on an entire viewing screen when viewed from a corresponding different viewing positions relative to a direction normal to the display screen, the apparatus comprising: a touch panel operatively coupled with the viewing screen; the viewing screen and touch panel together configured to provide an operation screen, with the first and second contents being displayed as the image of the content; a display controller configured to receive a detection signal that indicates either an operation of the first content or an operation of the second content, based on coordinate data of a touch input on the operation screen, wherein the display controller switches the display screen from the, full-screen mode to a local display in a split-screen mode when an operation is detected, such that when in the split-screen mode, the first content is shown on a first portion of the split-screen, and the second content is shown on a second portion of the split-screen; the first portion of the split-screen having a touch area located away horn the second portion of the split-screen, the touch area defining a noninterference area configured to receive a touch input such that the touch input cannot interfere with the second portion of the split screen; the second portion of the split-screen having a touch area located away from the first portion of the spilt-screen, the touch area defining a noninterference area configured to receive a touch input such that the touch input cannot interfere with the first portion of the split screen; and wherein control of the local display based on coordinate data of the touch input and the noninterference areas are configured not to obstruct the display of the image of the first and second content, respectively, corresponding to another viewing position.