<p>The present invention relates to a display device mounting case and to a mounting method, wherein the case comprises: a case body coupled to a display device; and a mounting portion formed on the inner surface of the case body and capable of deforming so as to have a shape with which the display device can be mounted when the case body is separated from the display device. The present invention can generally be used as a display device case and can be used to mount the display device in a conventional manner when a video is to be watched on the display device by erecting the mounting portion on the inner bottom surface of the case after removing the case from the display device without having to use another mounting unit.</p>