Patent ID: 6882335

Claim:
Display apparatus comprising: a display having four corners; an orientation sensitive interface mechanism operable in first and second modes corresponding to respective first and second orientations of said display; selection means for selecting operation of said orientation sensitive interface mechanism in said first or second mode; and orientation sensing means for determining an orientation of said display and operable to automatically activate said selection means in accordance with said orientation, said orientation sensing means comprising a display mode sensor responsive to a display mode control signal indicative of a display mode for an image foil display by said display apparatus to automatically activate said selection means in accordance with a sensed display mode; said orientation sensitive interface mechanism including only three loud speakers: a first loudspeaker pair comprising a first and second loudspeaker disposed along a first axis corresponding to said first orientation; and a third loudspeaker, said second and third loudspeaker forming a second loudspeaker pair disposed along a second axis corresponding to said second orientation; said selection means operable to select said first or second loudspeaker pair for operation in said first or second mode, respectively, wherein the three loud sneakers are located at three corners of the display, the three loudspeakers facing in substantially one single direction.