US3839715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display system for a plasma display device
Assignee: Fujitsu Ltd
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Filing: 1972-12-29
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Granted: 1974-10-01
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Expires: 1992-12-29
Abstract
Abstract A display system for a plasma display device in which a plurality of electrodes are arranged on each of a pair of opposing base plates with a discharge gas space defined therebetween, the plurality of electrodes on each base plate being arranged to intersect those on the other base plate perpendicularly to them; the electrodes on at least one of the base plate are covered with a dielectric layer to form a display layer; the other plate serves as a shift layer; a discharge produced between adjacent electrodes of the shift layer is shifted; and a discharge is caused between adjacent electrodes of the display layer in accordance with the timing of the shifting of the discharge in the shift layer and that of writing in the display layer.
Inventors
- 👤 S Andoh
- 👤 Y Shirouchi
- 👤 T Hirose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:07
CPC Classifications
H; H01; H01J; H01J11/00; G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/28; G09G3/2813; G09G3/288; G09G3/291; G09G3/294; G09G3/296; G09G3/298
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
234 words
A display system comprising: a. a plasma display device including first and second base plates disposed opposite to each other for confining a discharge gas therebetween, first and second pluralities of electrodes disposed respectively upon said first and second base plates whereby said first and second pluralities of electrodes intersect each other, a dielectric layer formed on said first plurality of electrodes to provide a display layer, said display dielectric layer including partitioning means defining corresponding, separate display discharge spot positions along the lengths of said adjacent electrodes of said first plurality, said positions corresponding to the positions of discharges between successive, adjacent ones of said second plurality of electrodes, and a surface of said second base plate disposed toward said display layer serving as a shift layer; b. first means for producing a discharge between adjacent ones of said second plurality of electrodes and for shifting a discharge so produced to successive positions between successive, adjacent ones of said second plurality of electrodes; and c. second means for applying write signals between selected, adjacent ones of said first plurality of electrodes in timed relationship to the said shifting of a discharge in the shift layer, thereby to produce a discharge between said adjacent, selected ones of said first plurality of electrodes at the display discharge spot positions thereof corresponding to the discharge shift positions in said shift layer, thereby to provide a display.
Claim 2
Dependent Claim
234 words
A display system comprising: a. a plasma display device including first and second base plates disposed opposite to each other for confining a discharge gas therebetween, first and second pluralities of electrodes disposed respectively upon said first and second base plates whereby said first and second pluralities of electrodes intersect each other, a dielectric layer formed on said first plurality of electrodes to provide a display layer, said display dielectric layer including partitioning means defining corresponding, separate display discharge spot positions along the lengths of said adjacent electrodes of said first plurality, said positions corresponding to the positions of discharges between successive, adjacent ones of said second plurality of electrodes, and a surface of said second base plate disposed toward said display layer serving as a shift layer; b. first means for producing a discharge between adjacent ones of said second plurality of electrodes and for shifting a discharge so produced to successive positions between successive, adjacent ones of said second plurality of electrodes; and c. second means for applying write signals between selected, adjacent ones of said first plurality of electrodes in timed relationship to the said shifting of a discharge in the shift layer, thereby to produce a discharge between said adjacent, selected ones of said first plurality of electrodes at the display discharge spot positions thereof corresponding to the discharge shift positions in said shift layer, thereby to provide a display.
Claim 3
Dependent Claim
55 words
A display system for a plasma display device as claimed in claim 1, wherein there is included means for applying a sustain voltage between the electrodes of said first plurality on said display layer where by the display on said display layer as established by discharge between selected electrodes of said first plurality is maintained.
Claim 4
Dependent Claim
100 words
A display system for a plasma display device as claimed in claim 1, wherein there is included means for supplying a sustain voltage to said first plurality of electrodes whereby the display on said display layer is sustained, and transfer means for applying a transfer voltage to said electrodes of said second plurality, the discharge pattern upon said display layer providing a seeding discharge for said shift layer, and the transfer voltage thereby producing discharges in said shift layer corresponding to the discharges of said display layer, and means for shifting sequentially the transferred display discharges in said shift layer.
Claim 5
Dependent Claim
30 words
A display system for a plasma display device as claimed in claim 3, wherein there is included means for detecting and reading out the display transferred to said shift layer.
Claim 6
Dependent Claim
59 words
A display system for a plasma display device as claimed in claim 1, wherein said first plurality of electrodes is divided into a number of groups and there is further provided: switch means for selectively applying said write signals to corresponding electrodes of each said group, sequentially for the said number of groups of said first plurality of electrodes.
Claim 7
Dependent Claim
143 words
A display system for a plasma display device as claimed in claim 1, wherein said first plurality of electrodes is divided into plural groups, each of a common number of electrodes, and wherein said second means includes a plurality of write buses connected to the respectively corresponding electrodes of each said group, and wherein: said second plurality of electrodes includes an individual start electrode associated with each said group of electrodes of said first plurality, and there is further provided switch means for applying a start signal to a selected one of said start electrodes of said second plurality whereby upon application of writing signals to said write buses, writing is achieved in said display layer at the spot discharge positions of the electrodes of a given group in accordance with the logical product of a selected, start electrode and said write buses.
Claim 8
Dependent Claim
64 words
A display system for a plasma display device as claimed in claim 1, wherein there is included means for applying a shift pulse to successive ones of said second plurality of electrodes of said shift layer, and means for applying sustain pulses to said first plurality of Electrodes whereby said sustain pulses and said write signals are displaced in phase from the shift pulses.
Claim 9
Dependent Claim
52 words
A display system for a plasma display device as claimed in claim 1, wherein there is included a first plurality of dielectric partitions spaced from each other and disposed on said dielectric layer in a substantially parallel relation with each other along a direction substantially perpendicular to said first plurality of electrodes.
Claim 10
Dependent Claim
64 words
A display system for a plasma display device as claimed in claim 8, wherein there is included a second dielectric layer disposed on said second plurality of electrodes and a second plurality of dielectric partitions spaced from each other disposed on said second dielectric layer in a substantially parallel relation with each other along a direction substantially perpendicular to said second plurality of electrodes.
Claim 11
Dependent Claim
47 words
A display system for a plasma display device as claimed in claim 1, wherein there is included: first switching means for applying shift pulses successively to said electrodes of said second plurality, and second switching means for applying sustain pulses to said electrodes of said first plurality.
Claim 12
Dependent Claim
97 words
A display system for a plasma display device as claimed in claim 10 wherein said first switching means is operable to a switched position to remove the shift pulses from said electrodes of said second plurality and to apply said shift pulses to the electrodes of said first plurality and said second switching means is operable to a switched position to remove the sustain pulses from said electrodes of said first plurality and to apply the sustain pulses to said electrodes of said second plurality, thereby to effect shifting of said display discharges in said display layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |