PORTABLE ELECTRONIC DEVICE

摘要

When a projector mounted on a portable electronic device is in use (step S101: Yes), an evaluation is made (step S102) as to whether the attitude of the projector has changed or whether the projector has moved. If the result of this evaluation in step (S102) is "Yes", the distance of movement and the direction of movement of the projection region are found (step S103) from the movement of the projector. Next, the image that is projected in this projection region is altered (step S104) by moving the projection region of the projector in accordance with the distance of movement and the direction of movement found in step (S103).