<p>In a display device (10), each of two adjacent units (301, 302) out of a plurality of units has a side portion (36, 36') of a front side substrate (31) bent to the back side at a joint (48) between the two units. A display electrode (2) at the side portion of one of the two units is electrically connected with a corresponding display electrode (2) at the side portion of the other unit. The side portion of the front side substrate of each of the two units is thinner than the main portion (31') on the display surface side of the front side substrate.</p>
