GB1466697A - Electron-emissive component - Google Patents

Electron-emissive component

Info

Publication number
GB1466697A
GB1466697A GB383674A GB383674A GB1466697A GB 1466697 A GB1466697 A GB 1466697A GB 383674 A GB383674 A GB 383674A GB 383674 A GB383674 A GB 383674A GB 1466697 A GB1466697 A GB 1466697A
Authority
GB
United Kingdom
Prior art keywords
cathode
substrate
layer
compound
potential
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
Application number
GB383674A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bpifrance Financement SA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
Commissariat a lEnergie Atomique CEA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Agence National de Valorisation de la Recherche ANVAR, Commissariat a lEnergie Atomique CEA filed Critical Agence National de Valorisation de la Recherche ANVAR
Publication of GB1466697A publication Critical patent/GB1466697A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/30—Cold cathodes, e.g. field-emissive cathode
    • 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
    • H01J17/491—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with electrodes arranged side by side and substantially in the same plane, e.g. for displaying alphanumeric characters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/022—Manufacture of electrodes or electrode systems of cold cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Cold Cathode And The Manufacture (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Chemical Vapour Deposition (AREA)

Abstract

1466697 Cathode materials COMMISSARIAT A L'ENERGIE ATOMIQUE and AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 28 Jan 1974 [30 Jan 1973] 03836/74 Heading H1D [Also in Divisions G1 G2 and G5] A cold cathode comprises a conductive substrate, a film of solid organometallic compound electrochemically deposited and a conductive layer. Electron emission is produced by a potential of a few volts applied across the compound, e.g. from an integrated circuit. Emission is a function of the applied voltage but is independent of polarity. The substrate and layer are of Pt, Al, An, Ni, Cu or porous sintered Ni. The metal in the compound is Na, Li or Ca. The cathode is prepared by immersing the substrate on a metal salt dissolved in an organic solvent and applying a potential to the substrate to produce an electrochemical reduction reaction at its surface resulting in the deposition of the compound. The solvent is HMPT or tetrahydrofuran with Li perchlorate. The conductive layer is added by sputtering. The substrate may be planar or cylindrical with the layers on its inner or outer surface. The cathode is used in diodes, triodes, thyratrons, gas discharge lamps, display panels, proximity switches, TV screens, light amplifiers and liquid crystal panels (see Divisions G4-G6). The use of this cathode in a diode provides the triggering function of a triode since current is dependent on the applied potential. Further since the current is not dependent on the polarity of the applied potential a rectifying effect can be achieved. An additional grid (26) Fig. 2 (not shown) may be added. A lamp comprises the cathode and a phosphor layer in vacuum Fig. 5 (not shown) or in a gaseous atmosphere when a discharge occurs. The lamps may be used in display panels with crossed conductor arrays or arranged in a figure of eight. Alternatively the cathodes may form a figure of eight with a single anode. A light amplifier comprises a photoconductive layer 154 between electrodes 156, 152, the latter being connected to one electrode 2 of the cathode which emits electrons proportional to the light input to energize a phosphor layer. In another light amplifier the photoconductive layer and emissive material of the cathode form a sandwich separated by a single electrode. This may be scanned by an amplitude modulated light beam.
GB383674A 1973-01-30 1974-01-28 Electron-emissive component Expired GB1466697A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7303212A FR2215699B1 (en) 1973-01-30 1973-01-30

Publications (1)

Publication Number Publication Date
GB1466697A true GB1466697A (en) 1977-03-09

Family

ID=9114057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB383674A Expired GB1466697A (en) 1973-01-30 1974-01-28 Electron-emissive component

Country Status (12)

Country Link
US (1) US3921031A (en)
JP (1) JPS5133549A (en)
BE (1) BE810216A (en)
CH (1) CH592362A5 (en)
DE (1) DE2403893A1 (en)
ES (1) ES422685A1 (en)
FR (1) FR2215699B1 (en)
GB (1) GB1466697A (en)
IT (1) IT1009122B (en)
NL (1) NL7401168A (en)
SE (1) SE398021B (en)
SU (1) SU641890A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204991A (en) * 1987-05-18 1988-11-23 Gen Electric Plc Vacuum electronic device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2822665A1 (en) * 1978-05-05 1979-11-08 Bbc Brown Boveri & Cie GLOW CATHODE MATERIAL
JPS6391925A (en) * 1986-10-03 1988-04-22 Canon Inc Electron emitting element
US5136212A (en) * 1988-02-18 1992-08-04 Canon Kabushiki Kaisha Electron emitting device, electron generator employing said electron emitting device, and method for driving said generator
EP0329432B1 (en) * 1988-02-18 1996-05-15 Canon Kabushiki Kaisha Electron emitter
WO2017188422A1 (en) 2016-04-27 2017-11-02 デノラ・ペルメレック株式会社 Electrolytic cell

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL59317C (en) * 1941-10-15 1946-06-15
US3184636A (en) * 1961-06-15 1965-05-18 Sylvania Electric Prod Cold cathode
GB1032768A (en) * 1961-10-17 1966-06-15 Emi Ltd Improvements in or relating to electron discharge devices
NL296890A (en) * 1962-08-23
US3150282A (en) * 1962-11-13 1964-09-22 Stanford Research Inst High efficiency cathode structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204991A (en) * 1987-05-18 1988-11-23 Gen Electric Plc Vacuum electronic device
GB2204991B (en) * 1987-05-18 1991-10-02 Gen Electric Plc Vacuum electronic devices

Also Published As

Publication number Publication date
IT1009122B (en) 1976-12-10
FR2215699A1 (en) 1974-08-23
DE2403893A1 (en) 1974-08-22
NL7401168A (en) 1974-08-01
AU6492474A (en) 1975-07-31
JPS5721822B2 (en) 1982-05-10
US3921031A (en) 1975-11-18
ES422685A1 (en) 1977-11-16
SU641890A3 (en) 1979-01-05
FR2215699B1 (en) 1976-04-30
JPS5133549A (en) 1976-03-22
SE398021B (en) 1977-11-28
CH592362A5 (en) 1977-10-31
BE810216A (en) 1974-05-16

Similar Documents

Publication Publication Date Title
US6147456A (en) Field emission display with amplification layer
US5449970A (en) Diode structure flat panel display
KR100488334B1 (en) Electron tube
US6023126A (en) Edge emitter with secondary emission display
GB1496442A (en) Luminous discharge display devices
GB1210107A (en) Improvements in or relating to discharge tube display devices
US6215243B1 (en) Radioactive cathode emitter for use in field emission display devices
US5955833A (en) Field emission display devices
GB1466697A (en) Electron-emissive component
US6323594B1 (en) Electron amplification channel structure for use in field emission display devices
GB1302152A (en)
US3197661A (en) Signal storage tubes
Josephs A review of panel-type display devices
US4001619A (en) Modulation mask for an image display device
US3796909A (en) Electroluminescent storage display
GB1290993A (en)
US3368093A (en) Storage tube with composite target consisting of display phosphor, porous dielectric and metallic membrane collector
US4123687A (en) Display system using low energy electrons
RU2077087C1 (en) Autoemissive cathode-luminescent cell
US3287593A (en) Cold cathode electron discharge device
US4617491A (en) Fluorescent display device with interleaved anode and control electrode segments
US3988222A (en) Method of fabrication of electroemissive components
US3896328A (en) Dual mode crt screen
RU2079177C1 (en) Cathode-luminescent self-emission cell
US2940003A (en) Counting tube arrangement

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee