| 摘要 |
Colour display apparatus including a colour display tube in which a single electron beam is scanned in television raster fashion across the input surface of an electron multiplier (16) adjacent a screen (14) comprising a repeating pattern of three different colour phosphors, and in which deflection of the beam emanating from the multiplier onto respective ones of the three phosphors is controlled by colour selection electrodes (38, 40) adjacent output apertures of the multiplier, includes driving circuitry using line stores (64) which performs line scanning at three times the standard rate and-controls switching of the colour selection electrodes so as to display in turn the three colour components of each standard picture line during the standard line period. Vertical scanning may be effected continuously or in stepped fashion.
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