Patent ID: 7095169

Claim:
A flat panel display device comprising: a rear substrate including an insulating substrate and a plurality of cold cathode elements disposed on said insulating substrate for emitting electrons; a display substrate including a light-transmissive substrate disposed to face said rear substrate and phosphors disposed on said light-transmissive substrate for generating light when excited by electron beams from said plurality of cold cathode element; a peripheral frame member interposed between said rear substrate and said display substrate such that a space enclosed by said peripheral frame member, said rear substrate and said display substrate is vacuum tight; a metal sheet provided on a surface of said light-transmissive substrate facing toward said rear substrate and perforated with a plurality of holes each corresponding to one of said plurality of cold cathode elements; and a metal back adapted to be supplied with an anode voltage for leading said electrons from said plurality of cold cathode elements toward said metal sheet; wherein each of said plurality of holes has a corresponding one of said phosphors disposed therewithin, and a thickness of said metal sheet is greater than a thickness of said phosphors disposed within said plurality of holes; and wherein said display substrate further includes an adherent layer for affixing said metal sheet to said light-transmissive substrate.