Patent US3839714A successfully refreshed from Google Patents.
US3839714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasma display device for selectively displaying several fixed images
Assignee: NCR Voyix Corp
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Filing: 1972-12-26
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Granted: 1974-10-01
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Expires: 1992-12-26
Abstract
Abstract A plasma display device uses the same area for selectively displaying several fixed displays images. The device has cavities which are arranged in rows and columns in a gridlike manner. Each fixed image has a fixed number of cavities associated with it only, and each image may extend substantially over the given area when necessitated by the design thereof. Rows of spaced parallel electrodes and columns of spaced parallel electrodes are aligned with their associated rows and columns of cavities. Alternate ones of the rows of electrodes are connected together and alternate ones of the columns of electrodes are connected together to form a simple selection scheme for energizing the device to display the selected fixed image.
Inventors
- 👤 J Janning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:49
CPC Classifications
H; H01; H01J; H01J11/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
226 words
A plasma display device having a given area for selectively displaying at least two fixed images, comprising: a first substrate having electrode means thereon; a second substrate having vertically aligned, spaced parallel electrodes thereon; a layer of glass overlying the electrode means on said first substrate with said layer of glass having cavity location areas arranged thereon in parallel rows and parallel Columns in gridlike manner; said layer of glass havng cavities positioned at at least some of said cavity location areas, each said image having a number of cavities associated only therewith, with said number bearing a predetermined relationship to the total number of fixed images to be displayed, and with the cavity location areas for a particular image being distributed over said given area in a regularly repeating pattern thereon, and in which said image may extend substantially over said given area if necessitated by the design thereof; said vertically aligned spaced parallel electrodes being aligned with the columns of cavity location areas on said glass layer; connection terminal means connected to said electrode means and said parallel electrodes for energizing selected ones of said parallel electrodes and said electrode means in accordance with the image to be displayed; means for sealing together said first and second substrates and for filling said cavities with an ionizable gas; and an ionizable gas within said cavities.
Claim 2
Dependent Claim
226 words
A plasma display device having a given area for selectively displaying at least two fixed images, comprising: a first substrate having electrode means thereon; a second substrate having vertically aligned, spaced parallel electrodes thereon; a layer of glass overlying the electrode means on said first substrate with said layer of glass having cavity location areas arranged thereon in parallel rows and parallel Columns in gridlike manner; said layer of glass havng cavities positioned at at least some of said cavity location areas, each said image having a number of cavities associated only therewith, with said number bearing a predetermined relationship to the total number of fixed images to be displayed, and with the cavity location areas for a particular image being distributed over said given area in a regularly repeating pattern thereon, and in which said image may extend substantially over said given area if necessitated by the design thereof; said vertically aligned spaced parallel electrodes being aligned with the columns of cavity location areas on said glass layer; connection terminal means connected to said electrode means and said parallel electrodes for energizing selected ones of said parallel electrodes and said electrode means in accordance with the image to be displayed; means for sealing together said first and second substrates and for filling said cavities with an ionizable gas; and an ionizable gas within said cavities.
Claim 3
Dependent Claim
91 words
The device as claimed in claim 1 in which said connection terminal means include first and second connection terminals with alternate ones of said columns of spaced parallel electrodes being connected to said first connection terminal and the remainder of said parallel electrodes being connected to said second connection terminal; said cavities associated with a first image being aligned with said alternate ones of said spaced parallel electrodes, and the cavities associated with a second one of said images being aligned with the remainder of said columns of spaced parallel electrodes.
Claim 4
Dependent Claim
24 words
The device as claimed in claim 2 in which the cross sectional shapes of said cavities are substantially identical and of the same size.
Claim 5
Dependent Claim
32 words
The device as claimed in claim 3 in which said electrode means on said first substrate extends over all said cavity location areas, and in which said vertically aligned electrodes are transparent.
Claim 6
Dependent Claim
144 words
The device as claimed in claim 2 in which said electrode means comprises rows of spaced parallel electrodes being aligned with said rows of cavity locations; said connection terminal means further comprising third and fourth connection terminals with alternate ones of said rows of spaced parallel electrodes being connected to said third connection terminal and the remainder of said rows of parallel electrodes being connected to said fourth connection terminal; said cavities associated with a third image being aligned with said remainder of the rows of spaced parallel electrodes and said alternate columns of parallel electrodes; and said cavities associated with a fourth image being aligned with said remainder of said rows of parallel electrodes and said remainder of said columns of spaced parallel electrodes; said cavities associated with said first and second images being aligned with said alternate rows of spaced parallel electrodes.
Claim 7
Dependent Claim
33 words
The device as claimed in claim 5 in which the cross sectional shapes of said cavities are substantially identical and of the same size; and in which said layer of glass is opaque.
Claim 8
Dependent Claim
31 words
The device as claimed in claim 5 in which each said cavity associated with each said image has a character formed therein; and in which said layer of glass is opaque.
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 |