Fluorescent display tube wherein grid electrodes are formed on r

Details Fluorescent display tube wherein grid electrodes are formed on r Fluorescent display tube wherein grid electrodes are formed on r

1996-03-28

1997-07-01

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

H01J 902

Patent

active

056430345

ABSTRACT:
A fluorescent display tube including a substrate, a plurality of anodes formed on the substrate, fluorescent layers formed on the respective anodes, cathodes located above the fluorescent layers to generate electrons which strike the fluorescent layers, ribs formed of an electrically insulating material on the substrate so as to surround at least a portion of a periphery of each of the anodes and having a larger height from the substrate than the fluorescent layers, and grid electrodes formed on the respective ribs to control activation of the fluorescent layers. Each rib consists of a plurality of layers laminated by screen printing using a paste which includes the electrically insulating material.

REFERENCES:
patent: 3873169 (1975-03-01), Miyamoto et al.
patent: 4041348 (1977-08-01), Eto et al.
patent: 4472658 (1984-09-01), Morimoto et al.
patent: 4571523 (1986-02-01), Morimoto et al.
patent: 5209688 (1993-05-01), Nishigaki et al.
patent: 5465027 (1995-11-01), Ishizuka et al.
Noboru Endo et al., "Rib-Grid VFDs Shine Brightly; Other VFDs Adopt Large Dot-Matrix Arrangements", Display Devices Spring '94 Serial No. 9, Mar. 31, 1994, 28-29.

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