US3617796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display panel construction
Assignee: Unisys Corp
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Filing: 1970-01-29
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Granted: 1971-11-02
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Expires: 1990-01-29
Abstract
Abstract A gaseous display panel includes a top plate, a bottom plate, a center plate, and a plurality of arrays of electrodes associated therewith. The bottom plate, and the top plate if desired, are provided with slots, the center plate is provided with an array of holes, and the electrodes are arrayed to provide two layers of gas-filled glow cells. The various parts are constructed to provide optimum uniformity and thereby to achieve optimum operation with maximum economies and ease in construction.
Inventors
- 👤 Bernard Caras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:25
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/492; H01J17/494
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
480 words
A display panel comprising a gas-filled envelope including a bottom plate, a center plate, and a top plate, all being of dielectric material and hermetically sealed together along their adjacent edges, said bottom plate having a top surface, a bottom surface, a left edge, a right edge, an upper edge, and a lower edge, said bottom plate also having a plurality of first parallel identical slots extending into said plate from said top surface and extending along the entire length of said plate, at least one of said first slots having an obstruction close to one edge of said bottom plate and comprising a short slot, a first electrode seated in all of said first slots except said short slot and extending along the entire length of said first slots and beyond the left and right edges of said bottom plate, a second electrode seated in said short slot, said center plate having a top surface, a bottom surface, a left edge, a right edge, an upper edge, and a lower edge, a plurality of generally rectangular identical parallel slots formed in said bottom surface of said center plate and extending transversely to said first slots in said bottom plate, the first slot being considered to be adjacent to the left edge of said center plate and the last slot being considered to be adjacent to the right edge of said center plate, a first flat strip electrode disposed in said first of said rectangular slots with the inner end thereof overlying said short slot in said bottom plate and extending therefrom out of said panel beyond said lower edge of said bottom plate, said first electrode being in operative relation with said second electrode seated in said short slot, a second narrow flat strip electrode seated in the second of said rectangular slots and extending along the entire length of said second slot and beyond the upper and lower edges of said center plate, said narrow flat strip being narrower than said second slot, said second flat strip electrode being in operative relation with said first electrodes in said first slots and said second electrode in said short slot, a plurality of third identical flat strip apertured electrodes seated in all of the others of said rectangular slots and filling said slots, said third flat strip electrodes being in operative relation with only said first electrodes, a plurality of holes formed in said center plate and arrayed in rows and columns, each column of holes being aligned with one of said identical flat strip apertured electrodes, with each aperture in said apertured electrodes being generally aligned with one of said holes, each row of holes being generally aligned along one of said slots in said bottom plate, and a plurality of fourth electrodes aligned with said rows of holes and disposed between said top plate and said center plate.
Claim 2
Dependent Claim
480 words
A display panel comprising a gas-filled envelope including a bottom plate, a center plate, and a top plate, all being of dielectric material and hermetically sealed together along their adjacent edges, said bottom plate having a top surface, a bottom surface, a left edge, a right edge, an upper edge, and a lower edge, said bottom plate also having a plurality of first parallel identical slots extending into said plate from said top surface and extending along the entire length of said plate, at least one of said first slots having an obstruction close to one edge of said bottom plate and comprising a short slot, a first electrode seated in all of said first slots except said short slot and extending along the entire length of said first slots and beyond the left and right edges of said bottom plate, a second electrode seated in said short slot, said center plate having a top surface, a bottom surface, a left edge, a right edge, an upper edge, and a lower edge, a plurality of generally rectangular identical parallel slots formed in said bottom surface of said center plate and extending transversely to said first slots in said bottom plate, the first slot being considered to be adjacent to the left edge of said center plate and the last slot being considered to be adjacent to the right edge of said center plate, a first flat strip electrode disposed in said first of said rectangular slots with the inner end thereof overlying said short slot in said bottom plate and extending therefrom out of said panel beyond said lower edge of said bottom plate, said first electrode being in operative relation with said second electrode seated in said short slot, a second narrow flat strip electrode seated in the second of said rectangular slots and extending along the entire length of said second slot and beyond the upper and lower edges of said center plate, said narrow flat strip being narrower than said second slot, said second flat strip electrode being in operative relation with said first electrodes in said first slots and said second electrode in said short slot, a plurality of third identical flat strip apertured electrodes seated in all of the others of said rectangular slots and filling said slots, said third flat strip electrodes being in operative relation with only said first electrodes, a plurality of holes formed in said center plate and arrayed in rows and columns, each column of holes being aligned with one of said identical flat strip apertured electrodes, with each aperture in said apertured electrodes being generally aligned with one of said holes, each row of holes being generally aligned along one of said slots in said bottom plate, and a plurality of fourth electrodes aligned with said rows of holes and disposed between said top plate and said center plate.
Claim 3
Dependent Claim
466 words
A display panel comprising a gas-filled envelope including a bottom plate, a center plate, and a top plate, all being of dielectric material and hermetically sealed together along their adjacent edges, said bottom plate having a top surface, a bottom surface, a left edge, a right edge, an upper edge, and a lower edge, said bottom plate also having a plurality of first parallel identical slots extending into said plate from said top surface and extending along the entire length of said plate, two of said first slots having an obstruction close to one edge of said bottom plate and comprising short slots, a first electrode seated in all of said first slots except said short slot and extending along the entire length of said first sLots and beyond the left and right edges of said bottom plate, a second electrode seated in one of said two short slots and a third electrode seated in the other of said two short slots, said center plate of insulating material having a top surface, a bottom surface, a left edge, a right edge, an upper edge, and a lower edge, a plurality of generally rectangular identical parallel slots formed in said bottom surface of said center plate and extending transversely to said first slots in said bottom plate, the first slot being considered to be adjacent to the left edge of said center plate and the last slot being considered to be adjacent to the right edge of said center plate, first and second flat strip electrodes both disposed in said first rectangular slot but spaced apart from each other with one in operative relation with said second electrode and one in operative relation with said third electrode, a second narrow flat strip electrode seated in the second of said rectangular slots and extending along the entire length of said second slot and beyond the upper and lower edges of said center plate, said narrow flat strip being narrower than said second slot, said second flat strip electrode being in operative relation with said first and second electrodes, a plurality of third identical flat strip apertured electrodes seated in all of the others of said rectangular slots and filling said slots, said third flat strip electrodes being in operative relation with only said first electrodes, a plurality of holes formed in said center plate and arrayed in rows and columns, each column of holes being aligned with one of said identical flat strip apertured electrodes, with each aperture in said apertured electrodes being generally aligned with one of said holes, each row of holes being generally aligned along one of said slots in said bottom plate, and a plurality of fourth electrodes aligned with said rows of holes and disposed between said top plate and said center plate.
Claim 4
Dependent Claim
466 words
A display panel comprising a gas-filled envelope including a bottom plate, a center plate, and a top plate, all being of dielectric material and hermetically sealed together along their adjacent edges, said bottom plate having a top surface, a bottom surface, a left edge, a right edge, an upper edge, and a lower edge, said bottom plate also having a plurality of first parallel identical slots extending into said plate from said top surface and extending along the entire length of said plate, two of said first slots having an obstruction close to one edge of said bottom plate and comprising short slots, a first electrode seated in all of said first slots except said short slot and extending along the entire length of said first sLots and beyond the left and right edges of said bottom plate, a second electrode seated in one of said two short slots and a third electrode seated in the other of said two short slots, said center plate of insulating material having a top surface, a bottom surface, a left edge, a right edge, an upper edge, and a lower edge, a plurality of generally rectangular identical parallel slots formed in said bottom surface of said center plate and extending transversely to said first slots in said bottom plate, the first slot being considered to be adjacent to the left edge of said center plate and the last slot being considered to be adjacent to the right edge of said center plate, first and second flat strip electrodes both disposed in said first rectangular slot but spaced apart from each other with one in operative relation with said second electrode and one in operative relation with said third electrode, a second narrow flat strip electrode seated in the second of said rectangular slots and extending along the entire length of said second slot and beyond the upper and lower edges of said center plate, said narrow flat strip being narrower than said second slot, said second flat strip electrode being in operative relation with said first and second electrodes, a plurality of third identical flat strip apertured electrodes seated in all of the others of said rectangular slots and filling said slots, said third flat strip electrodes being in operative relation with only said first electrodes, a plurality of holes formed in said center plate and arrayed in rows and columns, each column of holes being aligned with one of said identical flat strip apertured electrodes, with each aperture in said apertured electrodes being generally aligned with one of said holes, each row of holes being generally aligned along one of said slots in said bottom plate, and a plurality of fourth electrodes aligned with said rows of holes and disposed between said top plate and said center plate.
Claim 5
Dependent Claim
51 words
The panel defined in claim 2 wherein said first slots are disposed as a group between said upper and lower edges of said bottom plate, said two of said first slots being positioned one adjacent to said upper edge and the other adjacent to said lower edge of said bottom plate.
Claim 6
Dependent Claim
25 words
The panel defined in claim 1 wherein said at least one of said first slots is obstructed by a mass of insulating material deposited therein.
Claim 7
Dependent Claim
25 words
The panel defined in claim 1 and including an insulating exhaust tubulation secured to said bottom plate and communicating with the interior of said panel.
Claim 8
Dependent Claim
40 words
The panel defined in claim 1 and including an insulating exhaust tubulation secured to said bottom plate and communicating with the interior of said panel at a location between the obstruction therein and the right edge of said bottom plate.
Claim 9
Dependent Claim
54 words
The panel defined in claim 1 wherein said top surface of said bottom plate is provided with a cross slot which is parallel to and aligned with said second rectangular slot in said center plate, and said second narrow flat strip electrode is seated in both said cross slot and said second rectangular slot.
References Cited (Backward Citations)
US2925530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |