Fluorescent display apparatus

Details Fluorescent display apparatus Fluorescent display apparatus

H - Electricity

01

J

313/1.1

H01J 31/15 (2006.01) H01J 31/12 (2006.01)

Patent

CA 1296047

ABSTRACT OF THE DISCLOSURE Fluorescent display apparatus for use in a large-screen display comprising a display portion having fluorescent display portions arranged in a matrix and coated with fluorescent material for emitting light upon being bombarded by thermoelectrons, cathodes of the type consuming small power shaped in a linear form oriented in the direction of the row or column and disposed to oppose the display portion arranged that one cathode corresponds to two or four of the fluorescent display portions, a first control electrode in a planar form having openings made therein corresponding to the fluorescent display portions of the display portion and disposed between the display portion and the cathodes, second control electrodes disposed on the side of the cathodes opposite to the display portion, and arranged corresponding to each cathode along the length of the cathode, and third control electrodes disposed on both sides of the second control electrodes in the direction of the column, and arranged so as to correspond to each cathode.

579803

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