# US 5,708,450 A · Fluorescent display device and method for driving same

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- Number: US 5,708,450 A
- Document ID: US5708450A
- Status: Granted
- Kind: A
- Application number: 08/087,899
- Filed: 1993-07-09
- Granted: 1998-01-13
- Earliest claimed: 1992-07-14
- Assignees: Futaba Denshi Kogyo K.K.
- Inventors: Hiroaki Kawasaki; Hiroshi Yamaguchi; Yoshimichi Matsuda; Itaru Hatori
- Web page: https://patentgrep.com/patent/US5708450A

## CPC

- H01J 31/15: with ray or beam selectively directed to luminescent anode segments {(printing by application of radiation B41J2/447)}
- G09F 9/313: being gas discharge devices (G09F9/302 takes precedence; gas discharge panels comprising a number of discharge gaps per se H01J17/49)
- G09G 3/06: using controlled light sources
- H01J: ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS (spark-gaps H01T; electric arc lamps H05B31/00; particle accelerators H05H)
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

A fluorescent display device capable of setting anode patterns as desired without being restricted by a configuration of grids. A plurality of grids formed into the same rectangular shape are juxtaposed to each other at micro intervals. First single anode patterns each are arranged so as to face each of grid groups each consisting of four to six single grids adjacent to each other. Second single anode patterns each are arranged so as to face each one single grids. The second single anode patterns are driven for every grid and then the grid groups facing the first single anode patterns are selected. Concurrently, the anode patterns facing the grid groups are fed with a display signal. Thus, the grid is commonly applied to any fluorescent display device and accommodates to any anode pattern.

## Claims

### Claim 1

A fluorescent display device comprising:
a plurality of grids juxtaposed to each other;
a plurality of anode wirings; and
a plurality of first anode patterns connected to said plurality of anode wirings and disposed under said plurality of grids;
wherein first ones of said plurality of first anode patterns disposed under odd ones of said plurality of grids are commonly connected to a first one of said plurality of anode wirings, and second ones of said plurality of first anode patterns disposed under even ones of said plurality of grids are commonly connected to a second separate one of said plurality of anode wirings.

### Claim 2 (depends on 1)

A fluorescent display device as recited in claim 1, further comprising:
a plurality of second anode patterns connected to said plurality of anode wirings and disposed under said plurality of grids, wherein at least one of said plurality of second anode patterns extends over at least two adjacent ones of said plurality of grids and is connected to a third separate one of said plurality of anode wirings.

### Claim 3 (depends on 1)

A fluorescent display device as recited in claim 1, comprising:
said plurality of first anode patterns each extending over only one of said plurality of grids.

### Claim 4

A fluorescent display device comprising:
a plurality of anode patterns disposed on a surface of an anode substrate;
a plurality of grids correspondingly disposed to said plurality of anode patterns a predetermined distance away from said plurality of anode patterns, a predetermined number of said plurality of grids being conductively connected together;
an electrode connected to said predetermined number of said plurality of grids:
an insulative material disposed on said substrate having a through-hole; and
a conductive material disposed on said insulative material over said through-hole;
said predetermined number of said plurality of grids being disposed upon said conductive material and said electrode being connected to said conductive material through said through-hole.

### Claim 5

A fluorescent display device comprising:
a plurality of anode patterns disposed on a surface of an anode substrate:
a plurality of grids correspondingly disposed to said plurality of anode patterns a predetermined distance away from said plurality of anode patterns, a predetermined number of said plurality of grids being conductively connected together:
an electrode connected to said predetermined number of said plurality of grids:
an insulative material disposed on said substrate; and
a plurality of conductive portions insulated from each other on said insulative material, one of said plurality of grids being disposed on each of said plurality of conductive portions; and
a plurality of through-holes provided in said insulative material correspondingly disposed for said plurality of conductive portions;
said electrode being connected to a predetermined number of said plurality of conductive portions through corresponding ones of said plurality of through-holes.