VAKUUMFLUOREZENZANZEIGEMATRIX UND VERFAHREN ZU IHREM BETRIEB

The invention relates to the construction and the mode of operation of vacuum-fluorescent display matrices which, as regards size and manufacturing investment, can compete with LCD versions and have the added advantage of being self-luminous. Between a rear wall plate and a closely adjacent transparent front plate which are both provided on their insides with transparent conductor leads, only the filaments are disposed. The fluorescent material (phosphor) is deposited as spaced segments on the conductor leads of the front plate. For activating the fluorescent segments, the electron stream is redirected, by reversing the polarity of the associated conductor leads, from the rearward electrode to the fluorescent segments on the front plate. Matrix addressing serves the selection of the character elements.