US4326148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas discharge display device
Assignee: Panasonic Holdings Corp
•
Filing: 1979-07-10
•
Granted: 1982-04-20
•
Expires: 1999-07-10
Abstract
Abstract In a gas discharge display device comprising a number of parallel array of anodes and crosswide disposed parallel array of cathodes, the anodes and cathodes being disposed with small discharging gaps filled with gas inbetween thereby forming a gas discharging matrix, on which a discharging spot scans from one end to the other end of the cathode of the array, wherein the array of the cathode is divided into plural divided arrays each having substantially the same number of cathodes and respective cathodes of the divided arrays are connected in common to respective cathodes of other divided arrays, the improvement is that any cathodes neighboring each other in one of the divided arrays are connected to such cathodes in other divided arrays as those are other than each other neighboring cathodes.
Inventors
- 👤 Takio Okamoto
- 👤 Tamisuke Atsumi
- 👤 Yoshio Nakagawa
- 👤 Hidezo Akutsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:55
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/492
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
176 words
A gas discharge display device comprising an array of a number of parallel disposed anodes and an array of a number of parallel disposed cathodes said anodes and said cathodes being disposed crosswise with small discharging gaps filled with gas therebetween, thereby forming a gas discharging matrix having a number of gas discharging cells thereon at cross points of said anodes and said cathodes, wherein a discharging spot scans from a cell at one end of said gas discharging cells to a cell at the other end thereof by being transferred sequentially from one discharge cell to the next one, wherein the cathodes are divided into a plurality of sub-arrays disposed in sequence from one side to the other side of the cathode array, each cathode in a sub-array being commonly connected to a cathode in the other respective sub-arrays, thereby forming a plurality of groupings of commonly-connected cathodes, and the improvement is that adjacent cathodes in any one of the sub-arrays are respectively commonly connected to non adjacent cathodes in the others of the sub-arrays.
Claim 2
Dependent Claim
176 words
A gas discharge display device comprising an array of a number of parallel disposed anodes and an array of a number of parallel disposed cathodes said anodes and said cathodes being disposed crosswise with small discharging gaps filled with gas therebetween, thereby forming a gas discharging matrix having a number of gas discharging cells thereon at cross points of said anodes and said cathodes, wherein a discharging spot scans from a cell at one end of said gas discharging cells to a cell at the other end thereof by being transferred sequentially from one discharge cell to the next one, wherein the cathodes are divided into a plurality of sub-arrays disposed in sequence from one side to the other side of the cathode array, each cathode in a sub-array being commonly connected to a cathode in the other respective sub-arrays, thereby forming a plurality of groupings of commonly-connected cathodes, and the improvement is that adjacent cathodes in any one of the sub-arrays are respectively commonly connected to non adjacent cathodes in the others of the sub-arrays.
Claim 3
Dependent Claim
60 words
A gas discharge display device in accordance with claim 1, wherein the cathodes are connected to receive scanning signals given by a circuit including a binary counter, a selector which issues output signals from said binary counter to its selected output terminals and a decoder which is connected by input terminals thereof to the other output terminals of said selector.
Claim 4
Dependent Claim
101 words
A gas discharge display device in accordance with claim 1 or 2, wherein said discharging gaps are in a closed space, said closed space being divided into rows of discharging cells by dielectric barriers disposed along said anodes, said discharging cells being disposed along said anodes, and said anodes and said cathodes being connected to a driving circuit which gives said electrodes in sequence a first kind of signals which cause stronger dischargings for displaying and a second kind of signals which cause weaker dischargings for scanning, both dischargings being made between the same pair of said anodes and said cathodes.
References Cited (Backward Citations)
US3631530A
Cited
US3820107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-19 | 1985-10-19 | 1986-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-19 | 1989-10-19 | 1990-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-19 | 1993-10-19 | 1994-04-20 | $7700.00 | Window Closed / Lapsed |