Patent ID: 6034658
Filing Date: 2000-03-07
Classification: H01J

Abstract:
A flat color microtip screen comprising:a cathode including microtips (2) divided into independently addressable cathode columns (K1, K2, K3 . . . );a first pixel selection grid divided into independently addressable rows (L1, L2, L3 . . . );a second color selection grid including a plurality of groups of slots extending along a same direction as said cathode columns, each group of three slots (AiR, AiG, AiB) corresponding to one of said cathode columns, slots of a same group corresponding to a same color being connected to a same terminal; andan anode including groups of three parallel bands in a column of luminescent material of three selected colors (RGB), each group of three bands corresponding to a cathode column, each band corresponding to one of the slots, all bands of luminescent material being adapted to be substantially simultaneously brought to a same potential in operation.