Patent ID: 7245070

Claim:
A flat display comprising: a front glass plate which is at least partly transparent; a substrate which is arranged to oppose said front glass plate through a vacuum space; a cathode which is formed on said substrate and has an electron-emitting source made of nano tube fibers; a gate electrode which has an electron-passing hole in a direction perpendicular to said substrate and is arranged in the vacuum space away from said cathode to oppose said substrate; a phosphor screen and anode sequentially stacked on a surface of said front glass plate which opposes said substrate; a matrix spacer which is stacked between said gate electrode and front glass plate and has a plurality of openings each corresponding to the electron-passing hole; and a plurality of front ribs which vertically extend from said front glass plate toward said spacer at a predetermined interval, wherein said phosphor screen and anode are arranged in a region of said front glass plate which is sandwiched by said front ribs.