Patent ID: 7411579

Claim:
An information processing apparatus comprising: a housing with a top surface; a keyboard placed on the top surface of the housing; a display unit with a front surface and a rear surface, supported by the housing and rotated between a closed position in which the keyboard is covered and an open position in which the keyboard is exposed; a placement position sensor which senses whether display unit is located in a position where the rear surface of the display unit covers the top surface of the housing and the front surface of the display unit is exposed; an orientation sensor which senses an orientation of the display unit relative to force of gravity; and means for changing an orientation of the screen image displayed on a display device within the display unit in accordance with the orientation of the display unit relative to the force of gravity sensed by the orientation sensor when the placement position sensor senses that the rear surface of the display unit covers the top surface of the housing and the front surface of the display unit is exposed.