<p>A rectangular back substrate constituting the enclosure of an image display is fixed with a frame (30) for reinforcing the enclosure. The reinforcing frame comprises a pair of first frame parts (32) extending substantially in parallel with the long side of the back substrate, and a pair of second frame parts (34) extending substantially in parallel with the short side of the back substrate and coupling the first frame parts. Each second frame part satisfies a relation H/H=(13)-(33)%, where H is the length of the long side of the back substrate, and H is the interval between the short side of the back substrate and the second frame part.</p>
