GB1420137A - Display device - Google Patents
Display deviceInfo
- Publication number
- GB1420137A GB1420137A GB758273A GB758273A GB1420137A GB 1420137 A GB1420137 A GB 1420137A GB 758273 A GB758273 A GB 758273A GB 758273 A GB758273 A GB 758273A GB 1420137 A GB1420137 A GB 1420137A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- spacer
- discharge
- plate
- produce
- 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
- H01J17/498—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with a gas discharge space and a post acceleration space for electrons
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Gas-Filled Discharge Tubes (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
1420137 Cathode-ray display tubes HITACHI Ltd 15 Feb 1973 [16 Feb 1972] 7582/73 Heading H1D [Also in Division H4] A display device comprises a glass faceplate 1 carrying conductive and phosphor layers 2, 3; a spacer 5; crossed conductor arrays 4, 7; perforated insulating plates 8, 10; perforated conducting plate 9 and a discharge space 12 defined by end plate 13 and spacer 11 in which electrodes 17, 18 are mounted. The device is filled with rare gas, Hg or both. In operation a voltage is applied between electrodes 17, 18 to produce a discharge; selected electrodes 4, 7 are earthed or are made positive allowing electrons to diffuse to spacer 5 where they are accelerated by a D.C. potential on layer 2 to produce luminescence in the phosphor. A metal plate may be added between spacer 11 and plate 13, to which an accelerating potential is applied when discharge between electrodes 17, 18 ceases. In TV display a video signal is applied to a delay line 22 in parallel with gates 23 and pulse width modulation devices 24. Synchronizing signals are applied to gates 23, horizontal line scanner 26 and voltage generator 28 connected across electrodes 17, 18. During each horizental scanning period a pulse Vd is applied to electrodes 17, 18 to produce a discharge and then pulses P are applied to electrodes 4, 7. The pulses P are applied when Vd ends to ensure that the electron streams are of uniform density and non-uniform space charge on plate 9 is eliminated. In another embodiment electrode pairs 17, 18 are energized sequentially as the horizontal lines are scanned. The number of electrode pairs 17, 18 may be less than the number of electrodes 7.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47015561A JPS5235491B2 (en) | 1972-02-16 | 1972-02-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1420137A true GB1420137A (en) | 1976-01-07 |
Family
ID=11892154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB758273A Expired GB1420137A (en) | 1972-02-16 | 1973-02-15 | Display device |
Country Status (6)
Country | Link |
---|---|
US (1) | US3800186A (en) |
JP (1) | JPS5235491B2 (en) |
DE (1) | DE2307487C3 (en) |
FR (1) | FR2172317B1 (en) |
GB (1) | GB1420137A (en) |
NL (1) | NL151838B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2235819A (en) * | 1989-08-12 | 1991-03-13 | Cathodeon Ltd | Gas discharge display device |
GB2285168A (en) * | 1993-12-22 | 1995-06-28 | Marconi Gec Ltd | Electron field emission devices |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4020280A (en) * | 1973-02-21 | 1977-04-26 | Ryuichi Kaneko | Pulse width luminance modulation system for a DC gas discharge display panel |
DE2412869C3 (en) | 1974-03-18 | 1980-10-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Display device with a gas discharge space as electron source, with an electron post-acceleration space and with a luminescent screen and method for operating this display device |
DE2462643C2 (en) * | 1974-03-18 | 1983-09-01 | Siemens AG, 1000 Berlin und 8000 München | Display device with a gas discharge space as electron source, with a post-acceleration space and with a fluorescent screen |
FR2284975A1 (en) * | 1974-09-13 | 1976-04-09 | Thomson Csf | POLYCHROME ELECTRICAL INFORMATION DISPLAY DEVICE |
US3938135A (en) * | 1974-11-27 | 1976-02-10 | Zenith Radio Corporation | Gas discharge display device and an improved cell therefor |
DE2615569C3 (en) * | 1976-04-09 | 1982-01-14 | Siemens AG, 1000 Berlin und 8000 München | Color image display device |
DE2615681C2 (en) * | 1976-04-09 | 1983-02-17 | Siemens AG, 1000 Berlin und 8000 München | Display device with a gas discharge space as an electron source, with an electron post-acceleration space and with a fluorescent screen |
US4227114A (en) * | 1977-02-16 | 1980-10-07 | Zenith Radio Corporation | Cathodoluminescent gas discharge image display panel |
US4167690A (en) * | 1977-05-02 | 1979-09-11 | Rca Corporation | Cathode and method of operating the same |
DE2750587A1 (en) * | 1977-11-11 | 1979-05-17 | Siemens Ag | GAS DISCHARGE DISPLAY DEVICE WITH SPACER ELEMENTS |
DE2855056C2 (en) * | 1978-12-20 | 1982-04-15 | Siemens AG, 1000 Berlin und 8000 München | Gas discharge indicator |
JPS5721054A (en) * | 1980-07-15 | 1982-02-03 | Futaba Corp | Fluorescent display |
KR850000958B1 (en) * | 1981-02-10 | 1985-06-29 | 야마시다 도시히꼬 | Image display apparatus |
KR850000970B1 (en) * | 1981-02-10 | 1985-07-02 | 야마시다 도시히꼬 | Image display apparatus |
EP0057836B1 (en) * | 1981-02-10 | 1985-08-07 | Matsushita Electric Industrial Co., Ltd. | image display apparatus |
DE3132070A1 (en) * | 1981-08-13 | 1983-03-03 | Siemens AG, 1000 Berlin und 8000 München | Control of the electron flux in plasma displays |
DE3235724A1 (en) * | 1981-10-02 | 1983-04-21 | Futaba Denshi Kogyo K.K., Mobara, Chiba | FLUORESCENT DISPLAY DEVICE |
EP0109010A3 (en) * | 1982-11-10 | 1986-10-29 | Siemens Aktiengesellschaft | Flat imaging device |
KR940005881B1 (en) * | 1991-09-28 | 1994-06-24 | 삼성전관 주식회사 | Color plasma display device |
US5831382A (en) * | 1996-09-27 | 1998-11-03 | Bilan; Frank Albert | Display device based on indirectly heated thermionic cathodes |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3176184A (en) * | 1961-02-20 | 1965-03-30 | Roy L Knox | Electron deflection system for image reproduction including flat tube and planar cathode |
GB1210107A (en) * | 1967-11-28 | 1970-10-28 | Matsushita Electric Ind Co Ltd | Improvements in or relating to discharge tube display devices |
US3579015A (en) * | 1969-03-18 | 1971-05-18 | Monsanto Co | Electron beam addressed plasma display panel |
US3753041A (en) * | 1970-11-18 | 1973-08-14 | Sperry Rand Corp | Digitally addressable gas discharge display apparatus |
-
1972
- 1972-02-16 JP JP47015561A patent/JPS5235491B2/ja not_active Expired
-
1973
- 1973-02-09 NL NL737301858A patent/NL151838B/en not_active IP Right Cessation
- 1973-02-15 FR FR7305425A patent/FR2172317B1/fr not_active Expired
- 1973-02-15 US US00332590A patent/US3800186A/en not_active Expired - Lifetime
- 1973-02-15 GB GB758273A patent/GB1420137A/en not_active Expired
- 1973-02-15 DE DE2307487A patent/DE2307487C3/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2235819A (en) * | 1989-08-12 | 1991-03-13 | Cathodeon Ltd | Gas discharge display device |
GB2285168A (en) * | 1993-12-22 | 1995-06-28 | Marconi Gec Ltd | Electron field emission devices |
GB2285168B (en) * | 1993-12-22 | 1997-07-16 | Marconi Gec Ltd | Electron field emission devices |
US5942849A (en) * | 1993-12-22 | 1999-08-24 | Gec-Marconi Limited | Electron field emission devices |
Also Published As
Publication number | Publication date |
---|---|
US3800186A (en) | 1974-03-26 |
JPS5235491B2 (en) | 1977-09-09 |
FR2172317A1 (en) | 1973-09-28 |
JPS4885075A (en) | 1973-11-12 |
DE2307487C3 (en) | 1981-08-20 |
FR2172317B1 (en) | 1978-02-10 |
DE2307487B2 (en) | 1980-11-06 |
DE2307487A1 (en) | 1973-09-27 |
NL7301858A (en) | 1973-08-20 |
NL151838B (en) | 1976-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |