METHOD display apparatus and image deformation

Display apparatus comprises a closable plurality of housings, a plurality of display portions respectively provided to the plurality of housing and a closing angle detecting unit for detecting an opening angle of a plurality of housings. Display device performs a modification process for a plurality of images in accordance with the opening angle of the plurality of housings so as to be visually recognized as a plane image in which a plurality of images are continuous. In addition, the display device switches the deformation process according to the vertical postures and horizontal postures. Furthermore, it is also possible to correct a plurality of images in accordance with the position of the specific portion of the user with respect to the display device.