Patent ID: 6525485
Filing Date: 2003-02-25
Classification: H01J

Abstract:
An improved vacuum fluorescence display comprising:a ceramic substrate; a metal collar, said metal collar sealed to one surface of said ceramic substrate; a viewing window, said viewing window spaced from and disposed approximately parallel to said ceramic substrate and sealed to said metal collar; a phosphor screen mounted on said ceramic substrate, said phosphor screen comprising phosphor pixels disposed in a grid pattern on one or more semiconductor chips, said semiconductor chips containing integrated circuits that form a matrix of anodes, said anodes be individually energizable in a desired pattern; a getter, said getter formed of a chemically reactive material, said getter mounted inside of said sealed, evacuated interior volume beneath said phosphor screen; one or more filament cathodes disposed between said phosphor screen and said viewing window; and a biasing grid disposed between said phosphor screen and said one or more filament cathodes.