GB1404897A - Cold cathode discharge type display devcies and method for the production thereof - Google Patents
Cold cathode discharge type display devcies and method for the production thereofInfo
- Publication number
- GB1404897A GB1404897A GB1630373A GB1630373A GB1404897A GB 1404897 A GB1404897 A GB 1404897A GB 1630373 A GB1630373 A GB 1630373A GB 1630373 A GB1630373 A GB 1630373A GB 1404897 A GB1404897 A GB 1404897A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode electrodes
- electrodes
- phosphor
- perforations
- devcies
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
- H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
Landscapes
- Gas-Filled Discharge Tubes (AREA)
Abstract
1404897 Gas discharge display panels; cathode materials and processing OKI ELECTRIC INDUSTRY CO Ltd and OKAYA ELECTRIC INDUSTRY CO Ltd 5 April 1973 16303/73 Heading H1D Cold-cathode electrodes 8, e.g. nickel or nickel alloy wires, of a multi-cellular gas discharge display device are coated with an electron-emissive substance 9 in the form of a salt, e.g. the carbonate of Ba, Ca or Sr which is converted to oxide by evacuating the device and heating by applying a voltage across the respective cathode electrodes, after which a filling of inert gas such as Xe or A, or mercury vapour is provided. Anode electrode 7 crossing the cathode electrodes 8 at perforations 4 in an insulating spacer 5 have a coating 6 of phosphor, e.g. a mixture of Zn 2 SiO 4 or Mn, ZnS and Ag, or ZnCdS and Ag. Alternatively the phosphor may be applied to the inner surfaces of the perforations 4 or to the substrate 2 supporting the anodes 7. A driving circuit comprising two rotary switches connected in series with a transistor, a limiting resistor and a D.C. source across the electrodes is described (Fig. 3, not shown).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1630373A GB1404897A (en) | 1973-04-05 | 1973-04-05 | Cold cathode discharge type display devcies and method for the production thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1630373A GB1404897A (en) | 1973-04-05 | 1973-04-05 | Cold cathode discharge type display devcies and method for the production thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1404897A true GB1404897A (en) | 1975-09-03 |
Family
ID=10074875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1630373A Expired GB1404897A (en) | 1973-04-05 | 1973-04-05 | Cold cathode discharge type display devcies and method for the production thereof |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1404897A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4698546A (en) * | 1983-12-20 | 1987-10-06 | English Electric Valve Company Limited | Apparatus for forming electron beams |
USRE33520E (en) * | 1981-08-27 | 1991-01-15 | Dale Electronics, Inc. | Dot matrix plasma display and method for driving same |
WO1996006450A1 (en) * | 1994-08-24 | 1996-02-29 | Pixtech S.A. | Flat display screen with high voltage between electrodes |
-
1973
- 1973-04-05 GB GB1630373A patent/GB1404897A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE33520E (en) * | 1981-08-27 | 1991-01-15 | Dale Electronics, Inc. | Dot matrix plasma display and method for driving same |
US4698546A (en) * | 1983-12-20 | 1987-10-06 | English Electric Valve Company Limited | Apparatus for forming electron beams |
WO1996006450A1 (en) * | 1994-08-24 | 1996-02-29 | Pixtech S.A. | Flat display screen with high voltage between electrodes |
FR2724041A1 (en) * | 1994-08-24 | 1996-03-01 | Pixel Int Sa | INTER-ELECTRODES HIGH VOLTAGE DISPLAY FLAT SCREEN |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |