Field emission display arrangement with improved vacuum control

A field emission type display structure, comprising:

• an anode plate including an anterior side and a posterior side, the posterior side having a pixel arrangement for displaying images for viewing on the anterior side;
• a circuit-supporting substrate plate, forming a cathode structure, having a first side and having a second side facing away from the anode plate, the substrate plate having a plurality of apertures arranged through the substrate plate from the first side through to the second side, each aperture having a conical shape to increase the passage of molecules through the substrate plate toward the pumping means without contacting the side wall, and having electron-emitters directed toward the posterior side of the anode plate;
• a material for permanently absorbing gas molecules generated within the display;
• a backing structure having an inner side to which the material is secured;
• a first periphery seal securing the anode plate a selected distance from the substrate plate;
• a second periphery seal securing the substrate plate a selected distance from the backing structure;
• and
• the first and second periphery seals forming a vacuum seal around an area, that includes the plurality of apertures arranged through the substrate plate, bordered by the anode plate and the backing structure.