<p>A substrate (10) where a fluorescent surface and a metal back layer (17) are formed and a second circuit substrate (12) where electron discharge sources (18) are arranged are positioned so as to be opposed to each other. Between the first and second substrates are formed electron beam passage holes (26) and are arranged spacer support substrates (24) covered by insulation layers (37). One surface (24a) of each spacer support substrate is in contact with the first substrate with an electrically conductive layer (50) in between. A spacer (30) is stood between the other surface of each spacer support substrate and the second substrate.</p>
