Patent ID: 6528930
Filing Date: 2003-03-04
Classification: H01J

Abstract:
A conductive focus waffle structure for focusing electrons emitted from a cathode portion of a flat panel display device, said conductive focus waffle structure comprising:a grid of material, said grid comprised of substantially orthogonally oriented rows and columns, said substantially orthogonally oriented rows and columns defining openings therebetween, said openings having sufficient size to allow electrons emitted from a cathode portion of a flat panel display device to pass therethrough, said grid further comprising: a lower dielectric portion adapted to be coupled to said cathode portion of said flat panel display device; an upper conductive portion coupled to said lower dielectric portion, said upper conductive portion adapted to focus said electrons passing through said openings; and wherein edges of said lower dielectric portion are substantially flush with edges of said upper conductive portion and said upper conductive portion is substantially thicker than said lower dielectric portion.