Patent ID: 8666446

Claim:
A mobile terminal, comprising: a terminal body; a touch screen located on the terminal body; a motion sensor configured to detect motion of the terminal body; a projector module configured to project an image onto an external surface, the projector module coupled to the terminal body and positioned in a specific direction to face the external surface; a power supply configured to supply power to the projector module; and a controller configured to: identify an occurrence of a first motion and a second motion based upon the detected motion of the terminal body, the detected motion occurring while the projector module is operating, the first motion occurring when the terminal body is moved along or rotated on a plane that is perpendicular to the specific direction and the second motion occurring when the terminal body is moved in a direction parallel to the specific direction; control the power supply to discontinue supplying power to the projector module while continuing to supply power to the touch screen upon detection of the occurrence of the first motion; control the power supply to resume supplying power to the projector module upon detection of a touch and drag input on the touch screen in a direction toward the projector module; control the power supply to discontinue supplying power to the projector module while continuing to supply power to the touch screen upon detection of the occurrence of the second motion when the mobile terminal is in a power saving mode; and control the power supply to continue supplying power to the projector module upon detection of the occurrence of the second motion when the mobile terminal is not in the power saving mode such that the second motion causes enlargement or reduction of the image projected onto the external surface.