Colour display tube.

摘要

A colour display tube including a channel plate electron multiplier (30) and a cathodoluminescent screen (32) comprising a substantially planar array of two-colour penetron phosphor elements (40) and phosphor elements (42) of a third colour. The phosphor elements may be arranged as dots and rings or parallel stripes. Means are disclosed for deflecting the electron beams from the channel multiplier on to selected phosphor elements of either arrangement.