A link mechanism which links a main body and a display part of an information apparatus with a display part which can be opened and closed with respect to a main body is made a four-section articulated link mechanism which arranges first and second joints on the main body and arranges third and fourth joints on the display part. The first joint is fixed in position, the second joint is made slidable with respect to the first joint, and the third and fourth joints are positioned at two ends of a slide block which can slide on the display part. Due to this, the four-section articulated link mechanism can make the display part simultaneously slide and tilt with respect to the main body from the closed position.