Color picture display tube

A color display tube comprising:

• (a) a laminated dynode channel plate electron multiplier;
• (b) means for producing an electron beam and scanning said beam across an input face of the electron multiplier;
• (c) an apertured extractor electrode mounted on but electrically insulated from an output face of the electron multiplier, apertures in the extractor electrode communicating with respective channels in the electron multiplier;
• (d) a luminescent screen spaced from an output face of the extractor electrode and comprising a repetitive pattern of groups of phosphor elements, the phosphor elements in each group adapted to luminesce in different colors;
• and
• (e) pairs of first and second deflector electrodes mounted on the output face of the extractor electrode, each pair being disposed between adjacent apertures in the extractor electrode, the first and second deflector electrodes in each pair being electrically insulated from each other and from the extractor electrode, all of the first deflector electrodes being electrically connected to each other and all of the second deflector electrodes being electrically connected to each other, ones of the first and second deflector electrodes disposed on opposite sides of each aperture in the extractor electrode effecting deflection of electrons emerging from the aperture to a selected one of the phosphor elements in a group corresponding to said aperture when a respective predetermined potential difference is applied to said first and second deflector electrodes.