US3894264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for driving a plasma display panel
Assignee: Fujitsu Ltd
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Filing: 1973-12-19
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Granted: 1975-07-08
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Expires: 1993-12-19
Abstract
Abstract The present invention discloses a method for writing information on a plasma display panel with the minimum write voltage. In the plasma display panel, an upper member and a lower member face each other, sandwiching a gap filled with gas therebetween, and the upper member had column electrodes covered with a dielectric layer and the lower member has row electrodes covered with a dielectric layer, and the upper and the lower members are not similar in construction and/or in the material of which they are made. In one embodiment, when a secondary electron radiation emissivity of the surface of the dielectric layer of row electrodes which are provided on the lower member is higher than a secondary electron radiation emissivity of the surface of the dielectric layer of column electrodes which are provided on the upper member, a write voltage is supplied to selected electrodes with a polarity such that the row electrodes become negative and the row electrodes become positive.
Inventors
- 👤 Shizuo Andoh
- 👤 Kenji Murase
- 👤 Toshiaki Iemori
- 👤 Hiroshi Yamamoto
- 👤 Norihiko Nakayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:27
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/28; G09G3/288; G09G3/297; G09G3/291
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
226 words
A method of driving a plasma display panel which includes a first member and a second member which are provided facing each other via a gap filled with ionizable gas, said first member providing a plurality of first electrodes which are covered with a first dielectric layer having a first surface contacting said ionizable gas, said second member providing a plurality of second electrodes which are covered with a second dielectric layer having a second surface contacting said ionizable gas, said second surface having secondary electron radiation emissivity higher than that of said first surface, and said first electrodes being provided in a direction which crosses said second electrodes, said method of driving said plasma display panel comprising the steps of applying an alternating sustaining voltage between said first electrodes and said second electrodes, applying a write voltage between electrodes which are selected from said first electrodes and electrodes which are selected from said second electrodes having a polarity such that said second electrodes covered with said second dielectric layer having a surface of higher secondary electron emissivity have a negative polarity and said first electrodes covered with said first dielectric layer having a surface of lower secondary electron emissivity have a positive polarity, thereby producing a discharge at the crosspoint of said first electrodes and said second electrodes across said gap filled with ionizable gas.
Claim 2
Independent Claim
226 words
A method of driving a plasma display panel which includes a first member and a second member which are provided facing each other via a gap filled with ionizable gas, said first member providing a plurality of first electrodes which are covered with a first dielectric layer having a first surface contacting said ionizable gas, said second member providing a plurality of second electrodes which are covered with a second dielectric layer having a second surface contacting said ionizable gas, said second surface having secondary electron radiation emissivity higher than that of said first surface, and said first electrodes being provided in a direction which crosses said second electrodes, said method of driving said plasma display panel comprising the steps of applying an alternating sustaining voltage between said first electrodes and said second electrodes, applying a write voltage between electrodes which are selected from said first electrodes and electrodes which are selected from said second electrodes having a polarity such that said second electrodes covered with said second dielectric layer having a surface of higher secondary electron emissivity have a negative polarity and said first electrodes covered with said first dielectric layer having a surface of lower secondary electron emissivity have a positive polarity, thereby producing a discharge at the crosspoint of said first electrodes and said second electrodes across said gap filled with ionizable gas.
Claim 3
Dependent Claim
28 words
The method of driving a plasma display panel according to claim 1 which further comprises, applying said write voltage at the same time as said alternating sustaining voltage.
Claim 4
Independent Claim
225 words
A method of driving a plasma display panel construction which includes a first member and a second member which are provided facing each other via a gap filled with ionizable gas, said first member providing a plurality of first electrodes which are covered with a first dielectric layer having a first surface contacting said ionizable gas, said second member providing a plurality of second electrodes which are covered with a second dielectric layer having a second surface contacting said ionizable gas, said first electrodes being provided in a direction which crosses said second electrodes, said method of driving said plasma display panel comprising the steps of applying an alternating sustaining voltage between said first electrodes and said second electrodes, forming said first and second electrodes for concentrating the electric field crossing said gap filled with ionizable gas at a higher dEnsity on said second surface of said second dielectric layer with respect to said first surface of said first dielectric layer, applying a write voltage between electrodes which are selected from said first electrodes and electrodes which are selected from said second electrodes with a polarity such that said second electrodes have a negative polarity and said first electrodes have a positive polarity, thereby producing a discharge at the crosspoint of said first electrodes and said second electrodes across said gap filled with ionizable gas.
Claim 5
Independent Claim
225 words
A method of driving a plasma display panel construction which includes a first member and a second member which are provided facing each other via a gap filled with ionizable gas, said first member providing a plurality of first electrodes which are covered with a first dielectric layer having a first surface contacting said ionizable gas, said second member providing a plurality of second electrodes which are covered with a second dielectric layer having a second surface contacting said ionizable gas, said first electrodes being provided in a direction which crosses said second electrodes, said method of driving said plasma display panel comprising the steps of applying an alternating sustaining voltage between said first electrodes and said second electrodes, forming said first and second electrodes for concentrating the electric field crossing said gap filled with ionizable gas at a higher dEnsity on said second surface of said second dielectric layer with respect to said first surface of said first dielectric layer, applying a write voltage between electrodes which are selected from said first electrodes and electrodes which are selected from said second electrodes with a polarity such that said second electrodes have a negative polarity and said first electrodes have a positive polarity, thereby producing a discharge at the crosspoint of said first electrodes and said second electrodes across said gap filled with ionizable gas.
References Cited (Backward Citations)
US3499167A
Cited
US3803450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |