signal lines not shown for electrically connecting the integration chip 700 to the panel units 300 m and 300 s the signal lines form pads not shown in the connection points of the integration chip 700 and the attachment points of the panel units 300 m and 300 s by substantial enlargement thereof the auxiliary fpc 680 is attached between the other side of the main panel unit 300 m and one side of the subsidiary panel unit 300 s and is provided with signal lines sl 2 and dl for electrically connecting the integration chip 700 and the subsidiary panel unit 300 s the panel units 300 m and 300 s include display areas 310 m and 310 s forming screens and peripheral areas 320 m and 320 s respectively the peripheral areas 320 m and 320 s may include light blocking layers not shown u201c black matrix u201d for blocking light the fpcs 650 and 680 are attached to the light blocking areas of the peripheral areas 320 m and 320 s each of the panel units 300 m and 300 s includes a plurality of display signal lines comprised of a plurality of gate lines g 1 g n and a plurality of.