Abstract: A portable electronic device, which has a slidingly attached touch screen (DPL1) and a sliding lid (SL1) also slidingly installed on top of the touch screen. A keyboard (KB1) is installed on top of the sliding lid. In a normal state, the display of the device is partly covered by the sliding lid and, thus, protected by the sliding lid against mechanical stress. When necessary, the display can be revealed by moving the sliding lid away from the display, whereupon a cogging (R1) made on the bottom of the sliding lid rotates a cogwheel (CW1), attached inside the device, that touches the cogging. The cogwheel transmits the movement of the sliding lid to a movement that is opposite to that of the sliding lid of the display, through a gear rack R2 attached to the display.

Abstract: Graphical information having a full extent not displayable at once on a low-resolution display of a hand-held electronic device is displayed over a limited extent thereof at a variable resolution less than or equal to the highest resolution inherently available within the graphical information. The varying portion of the full image to be displayed is selected by a user windowing signal actuated by a user input device such as a button, roller, joystick or by simply moving the hand-held electronic device in space and having that movement sensed by a sensor such as an accelerometer.