6B, is a schematic partial end view of a support member, etc., for explaining the process for producing a cold cathode field emission device in Example 2.FIGS. 8A and 8B are schematic partial end views of a support member, etc., for explaining the process for producing a cold cathode field emission device in Example 3.FIGS. 9A and 9B, following FIG. 8B, are schematic partial end views of a suppor