An information processing apparatus includes 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...http://www.google.com.au/patents/US20050062715?utm_source=gb-gplus-sharePatent US20050062715 - Information processing apparatus having function of changing orientation of screen image
