Fluorescent display device

Abstract

A dot matrix type fluorescent display device including anode segments arranged at fine pitches is provided which is capable of facilitating arrangement of grids and substantially preventing leakage luminance. A plurality of anode segments are arranged to defined a matrix. Each three wiring conductors are arranged for every anode row. The anode segments in each row are connected to the same writing conductors at every third interval. Each one mesh grid is arranged in correspondence to every two columns of anode segments. The anodes each are arranged so as to outwardly extend by distance one third as large as a dimension thereof from the grid. Each adjacent two grids are applied thereto a positive potential and shifted one by one. Of four columns of anodes corresponding to two grids, two columns of anodes positioned inside the grids are fed with a display signal. Unselected anodes adjacent thereto are likewise fed with the display signal, however, impingement of electrons on the unselected anodes is effectively prevented because an interval between the grids adjacent to each other is increased.

Dependencies are inferred from the claim text.