US3983445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasma display panel including electrodes for trapping ions
Assignee: NEC Corp
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Filing: 1975-05-22
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Granted: 1976-09-28
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Expires: 1995-05-22
Abstract
Abstract A plasma display panel is provided with front and rear boards each having a plurality of electrode members, respectively. The front and rear boards are spaced apart to define a discharge space filled with an ionizable gas. The front board is equipped with a front glass plate including a fluorescent or phosphorescent element set on its inside surface, and a central plate having a number of holes therethrough. The electrode members of the front board are affixed by a coating to an inside surface of the central plate. The fluorescent or phosphorescent elements are placed at the rear of the electrode members on the central plate.
Inventors
- 👤 Susumu Yasuda
- 👤 Takao Mimitsuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:22
CPC Classifications
H; H01; H01J; H01J11/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
146 words
A plasma display panel comprising a front board, a rear board spaced from the front board to define a discharge space therebetween, and an ionizable gas filling the discharge space, wherein the improvement comprises a front plate forming part of the front board and a luminescent layer set rendered luminous by excitation from ultraviolet rays affixed to the inside surface of the front plate, a central plate having a number of through holes mounted on the inside surface of the front plate over the luminescent layer set, and a plurality of first electrode members affixed about each of said through holes on an inside surface of said central plate, said electrodes being connected to each other by conductive lines, and said rear board including a rear plate having second electrode members affixed to the inside surface thereof corresponding to said through holes of the central plate.
Claim 2
Dependent Claim
146 words
A plasma display panel comprising a front board, a rear board spaced from the front board to define a discharge space therebetween, and an ionizable gas filling the discharge space, wherein the improvement comprises a front plate forming part of the front board and a luminescent layer set rendered luminous by excitation from ultraviolet rays affixed to the inside surface of the front plate, a central plate having a number of through holes mounted on the inside surface of the front plate over the luminescent layer set, and a plurality of first electrode members affixed about each of said through holes on an inside surface of said central plate, said electrodes being connected to each other by conductive lines, and said rear board including a rear plate having second electrode members affixed to the inside surface thereof corresponding to said through holes of the central plate.
Claim 3
Dependent Claim
34 words
The plasma display panel as set forth in claim 1, wherein said electrodes and conductive lines on said central plate and said second electrode members on said rear plate are covered by dielectric layers.
Claim 4
Dependent Claim
55 words
The plasma display panel as set forth in claim 1, wherein said luminescent layer set consists of three types of luminescent bodies that differ from each other in their respective luminous colors, the three types of luminescent bodies being independent of each other and being regularly arranged on said inside surface of said front plate.
Claim 5
Dependent Claim
25 words
The plasma display panel as set forth in claim 1, wherein each of said first electrode members are symmetrical with respect to said conductive lines.
Claim 6
Dependent Claim
23 words
The plasma display panel as set forth in claim 1, wherein each of said electrodes are asymmetrical with respect to said conductive lines.
Claim 7
Dependent Claim
25 words
The plasma display as set forth in claim 1, wherein said first electrode members consist of symmetrical and asymmetrical electrodes as to said conductive lines.
Claim 8
Dependent Claim
23 words
The plasma display panel as set forth in claim 1, wherein said first electrode members are substantially perpendicular to said second electrode members.
Claim 9
Dependent Claim
26 words
The plasma display panel as set forth in claim 1, wherein said electrodes and conductive lines on said central plate are coated with a dielectric layer.
Claim 10
Dependent Claim
23 words
The plasma display panel as set forth in claim 1, wherein said first and second electrode members are driven by an alternating current.
Claim 11
Dependent Claim
32 words
The plasma display panel as set forth in claim 9, wherein said luminescent layer set consists of three primary colors of luminescent bodies arranged on said inside surface of said front plate.
Claim 12
Dependent Claim
36 words
The plasma display panel as set forth in claim 9, wherein said first electrode members include both symmetrical and asymmetrical electrodes with respect to said conductive lines, and are substantially perpendicular to said second electrode members.
Claim 13
Dependent Claim
26 words
The plasma display panel as set forth in claim 11, wherein said electrodes and conductive lines on said central plate are coated with a dielectric layer.
Claim 14
Dependent Claim
25 words
The plasma display panel as set forth in claim 12, wherein said second electrode members on said rear plate are covered by a dielectric layer.
References Cited (Backward Citations)
US3886395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |