[go: up one dir, main page]

WO1996025753A1 - Cathode a emission de champ et procedes pour la realiser - Google Patents

Cathode a emission de champ et procedes pour la realiser Download PDF

Info

Publication number
WO1996025753A1
WO1996025753A1 PCT/SE1996/000209 SE9600209W WO9625753A1 WO 1996025753 A1 WO1996025753 A1 WO 1996025753A1 SE 9600209 W SE9600209 W SE 9600209W WO 9625753 A1 WO9625753 A1 WO 9625753A1
Authority
WO
WIPO (PCT)
Prior art keywords
field emission
emitting surface
substance
irregularities
cathode
Prior art date
Application number
PCT/SE1996/000209
Other languages
English (en)
Inventor
V. S. Kaftanov
A. L. Suvorov
E. P. Sheshin
Original Assignee
Lightlab Ab
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
Priority claimed from SE9500554A external-priority patent/SE504603C2/sv
Priority claimed from US08/467,825 external-priority patent/US5588893A/en
Application filed by Lightlab Ab filed Critical Lightlab Ab
Priority to DE69610902T priority Critical patent/DE69610902T2/de
Priority to AT96903328T priority patent/ATE197515T1/de
Priority to US08/894,270 priority patent/US5973446A/en
Priority to EP96903328A priority patent/EP0809854B1/fr
Priority to BR9607607A priority patent/BR9607607A/pt
Priority to CA002212681A priority patent/CA2212681C/fr
Priority to AU47372/96A priority patent/AU689702B2/en
Priority to JP52490096A priority patent/JP3299544B2/ja
Publication of WO1996025753A1 publication Critical patent/WO1996025753A1/fr

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
    • H01J1/304—Field-emissive cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/30—Cold cathodes
    • H01J2201/304—Field emission cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00—Electron emission display panels, e.g. field emission display panels

Definitions

  • the present invention relates to a field emission cathode to be used in light sources and similar devices, such as display panels, cathode-ray tubes, etc., and to methods in the production of such a field emission cathode.
  • Fig. 1 shows for clarity, after a step of cutting fibres into segments and annealing the fibres, part of a bundle made of a plurality of the fibres to constitute one field emission cathode of the invention
  • Fig. 2 shows the fibres of fig. 1 after the step of ion bombardment, in which a diverging of emitting ends of the fibre segments has occurred;
  • the field emission cathode is made from a fibre material containing a first substance, the method comprising firstly the steps of combining a plurality of fibres of the fibre material; cutting, mechanically or by melting, bundles from the fibre material, each bundle consisting of a plurality of fibre segments of a predetermined length; and annealing the fibre segments in order to remove from it other substances than the first substance, and/or to normalize the structure of the first substance in the fibre segments.
  • an electric field strong enough is applied to the cathode, electron emission will occur from the emitting ends.
  • the application of the electric field also causes ions of the residual gas to accelerate toward the emitting surface and collide with it creating new irregularities.
  • the emission will reach levels in the sharpest irregularities (peaks) , causing them to melt locally. If the electric field strength is increased slowly, the melting will be restricted and a substantial portion of the irregularities be preserved, and so will the field emission properties of the emitting ends.
  • the electrical field is increased in five, possibly, equal steps from zero to full operating voltage, each step being a few minutes, e.g., ten minutes.

Landscapes

  • Cold Cathode And The Manufacture (AREA)
  • Discharge Lamp (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

L'invention concerne une cathode à émission de champ qui est améliorée, ainsi que des procédés pour fabriquer une telle cathode. Selon les procédés de l'invention, la cathode à émission de champ est faite avec au moins un corps contenant une première substance. Le procédé consiste à préparer des irrégularités dans une surface d'émission du corps, à ajouter à la surface d'émission du corps des ions d'une seconde substance avec une fonction de travail faible et à modifier la surface émettrice en induisant une émission de champ par l'application d'un champ électrique variable au corps, en augmentant la force du champ par étapes.
PCT/SE1996/000209 1995-02-15 1996-02-15 Cathode a emission de champ et procedes pour la realiser WO1996025753A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE69610902T DE69610902T2 (de) 1995-02-15 1996-02-15 Feldemissionskathode und herstellungsverfahren derselben
AT96903328T ATE197515T1 (de) 1995-02-15 1996-02-15 Feldemissionskathode und herstellungsverfahren derselben
US08/894,270 US5973446A (en) 1995-06-06 1996-02-15 Field emission cathode and methods in the production thereof
EP96903328A EP0809854B1 (fr) 1995-02-15 1996-02-15 Cathode a emission de champ et procedes pour la realiser
BR9607607A BR9607607A (pt) 1995-02-15 1996-02-15 Processo na produção de um catodo de emissão de campo e catodo e dipositivo de emissão de campo
CA002212681A CA2212681C (fr) 1995-02-15 1996-02-15 Cathode a emission de champ et procedes pour la realiser
AU47372/96A AU689702B2 (en) 1995-02-15 1996-02-15 A field emission cathode and methods in the production thereof
JP52490096A JP3299544B2 (ja) 1995-02-15 1996-02-15 電界放出カソード及びその製造方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9500554A SE504603C2 (sv) 1995-02-15 1995-02-15 Metod vid tillverkning av en fältemissionskatod samt fältemissionskatod
SE9500554-2 1995-02-15
US08/467,825 1995-06-06
US08/467,825 US5588893A (en) 1995-06-06 1995-06-06 Field emission cathode and methods in the production thereof

Publications (1)

Publication Number Publication Date
WO1996025753A1 true WO1996025753A1 (fr) 1996-08-22

Family

ID=26662227

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1996/000209 WO1996025753A1 (fr) 1995-02-15 1996-02-15 Cathode a emission de champ et procedes pour la realiser

Country Status (10)

Country Link
EP (1) EP0809854B1 (fr)
JP (1) JP3299544B2 (fr)
CN (1) CN1097836C (fr)
AT (1) ATE197515T1 (fr)
AU (1) AU689702B2 (fr)
CA (1) CA2212681C (fr)
DE (1) DE69610902T2 (fr)
ES (1) ES2152513T3 (fr)
MX (1) MX9706141A (fr)
WO (1) WO1996025753A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5877588A (en) * 1997-06-13 1999-03-02 Lightlab Ab Field emission cathode and a light source including a field emission cathode
US6008575A (en) * 1997-06-13 1999-12-28 Lightlab Ab Light source including a field emission cathode, and a field emission cathode
US6054801A (en) * 1998-02-27 2000-04-25 Regents, University Of California Field emission cathode fabricated from porous carbon foam material
JP2000173449A (ja) * 1998-12-10 2000-06-23 Showa Denko Kk 電子放出素材
WO2000055880A1 (fr) * 1999-03-17 2000-09-21 Matsushita Electric Industrial Co., Ltd. Dispositif d'emission d'electrons et dispositif d'affichage d'images utilisant un dispositif d'emission d'electrons
WO2000077813A1 (fr) * 1999-06-10 2000-12-21 Lightlab Ab Procede de production d'une cathode d'emission par effet de champ, cathode d'emission par effet de champ et source lumineuse
WO2001052296A1 (fr) * 2000-01-14 2001-07-19 Thomson Tubes Electroniques Cathode generatrice d"electrons et son procede de fabrication
RU2180145C2 (ru) * 2000-02-15 2002-02-27 Батурин Андрей Сергеевич Автоэмиссионное устройство
US6737792B2 (en) 1999-12-27 2004-05-18 Sony Corporation Field emission cathode, electron emission device and electron emission device manufacturing method
RU2598857C2 (ru) * 2014-08-07 2016-09-27 Публичное акционерное общество "Автоэмиссионные технологии" Малогабаритная автоэмиссионная электронная пушка

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3636154B2 (ja) * 2002-03-27 2005-04-06 ソニー株式会社 冷陰極電界電子放出素子及びその製造方法、並びに、冷陰極電界電子放出表示装置及びその製造方法
JP3907626B2 (ja) 2003-01-28 2007-04-18 キヤノン株式会社 電子源の製造方法、画像表示装置の製造方法、電子放出素子の製造方法、画像表示装置、特性調整方法、及び画像表示装置の特性調整方法
JP2007265639A (ja) * 2006-03-27 2007-10-11 Osaka Univ 電子波干渉電子源とその製造方法およびそれを用いた素子

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272699A (en) * 1978-03-13 1981-06-09 Max-Planck-Gesellschaft Zur Forderung Der Wissenschaften E.V Electron impact ion source with field emission cathode
US4728851A (en) * 1982-01-08 1988-03-01 Ford Motor Company Field emitter device with gated memory

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272699A (en) * 1978-03-13 1981-06-09 Max-Planck-Gesellschaft Zur Forderung Der Wissenschaften E.V Electron impact ion source with field emission cathode
US4728851A (en) * 1982-01-08 1988-03-01 Ford Motor Company Field emitter device with gated memory

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5877588A (en) * 1997-06-13 1999-03-02 Lightlab Ab Field emission cathode and a light source including a field emission cathode
US6008575A (en) * 1997-06-13 1999-12-28 Lightlab Ab Light source including a field emission cathode, and a field emission cathode
US6054801A (en) * 1998-02-27 2000-04-25 Regents, University Of California Field emission cathode fabricated from porous carbon foam material
JP2000173449A (ja) * 1998-12-10 2000-06-23 Showa Denko Kk 電子放出素材
WO2000055880A1 (fr) * 1999-03-17 2000-09-21 Matsushita Electric Industrial Co., Ltd. Dispositif d'emission d'electrons et dispositif d'affichage d'images utilisant un dispositif d'emission d'electrons
WO2000077813A1 (fr) * 1999-06-10 2000-12-21 Lightlab Ab Procede de production d'une cathode d'emission par effet de champ, cathode d'emission par effet de champ et source lumineuse
US6737792B2 (en) 1999-12-27 2004-05-18 Sony Corporation Field emission cathode, electron emission device and electron emission device manufacturing method
WO2001052296A1 (fr) * 2000-01-14 2001-07-19 Thomson Tubes Electroniques Cathode generatrice d"electrons et son procede de fabrication
FR2803944A1 (fr) * 2000-01-14 2001-07-20 Thomson Tubes Electroniques Cathode generatrice d'electrons et son procede de fabrication
RU2180145C2 (ru) * 2000-02-15 2002-02-27 Батурин Андрей Сергеевич Автоэмиссионное устройство
RU2598857C2 (ru) * 2014-08-07 2016-09-27 Публичное акционерное общество "Автоэмиссионные технологии" Малогабаритная автоэмиссионная электронная пушка

Also Published As

Publication number Publication date
JP3299544B2 (ja) 2002-07-08
DE69610902T2 (de) 2001-04-19
MX9706141A (es) 1998-08-30
ATE197515T1 (de) 2000-11-11
CA2212681C (fr) 2001-12-11
EP0809854B1 (fr) 2000-11-08
ES2152513T3 (es) 2001-02-01
DE69610902D1 (de) 2000-12-14
JPH11500259A (ja) 1999-01-06
CA2212681A1 (fr) 1996-08-22
AU4737296A (en) 1996-09-04
AU689702B2 (en) 1998-04-02
CN1097836C (zh) 2003-01-01
EP0809854A1 (fr) 1997-12-03
CN1174629A (zh) 1998-02-25

Similar Documents

Publication Publication Date Title
US5973446A (en) Field emission cathode and methods in the production thereof
AU689702B2 (en) A field emission cathode and methods in the production thereof
US6020677A (en) Carbon cone and carbon whisker field emitters
US6780075B2 (en) Method of fabricating nano-tube, method of manufacturing field-emission type cold cathode, and method of manufacturing display device
US20020006489A1 (en) Electron emitter, manufacturing method thereof and electron beam device
EP0718864A1 (fr) Dispositif à émission de champ avec particules émitteurs de diamant ultra-fin
US5877588A (en) Field emission cathode and a light source including a field emission cathode
JP2001357771A (ja) 電子放出素子およびその製造方法および面発光装置および画像表示装置および固体真空デバイス
AU747658B2 (en) Field emission cathode fabricated from porous carbon foam material
US8143774B2 (en) Carbon based field emission cathode and method of manufacturing the same
JPH11120901A (ja) 放射線による電界放出型冷陰極材料の作製方法
JP2005032638A5 (fr)
RU2159478C2 (ru) Способ изготовления катода с автоэлектронной эмиссией, катод с автоэлектронной эмиссией и устройство автоэлектронной эмиссии
JPS62140332A (ja) 電界放射陰極
JP4707336B2 (ja) カーボンナノファイバーを用いた電子源の製造方法
JP2002501284A (ja) 電子放出材の製造のためのプラズマ処理法
KR100550486B1 (ko) 코팅된 와이어 형태의 이온 충격된 흑연 전자 방출체
EP1005702A1 (fr) Cathode obtenue a partir de materiau getter
Reynolds et al. Electron field emission from Ar+ ion-treated thick-film carbon paste
KR20200076641A (ko) 그래핀 필름을 포함하는 냉음극 및 이를 이용한 전자총
Gierak et al. New graphite liquid metal ion source geometry developed for corrosive metal. Application to an aluminium ion source
Ganter et al. Preliminary results on a low emittance gun based on field emission
MXPA00008413A (es) Catodo de emision por efecto de campo fabricado de material de espuma de carbon poroso

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 96191941.8

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AZ BY KG KZ RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
ENP Entry into the national phase

Ref document number: 2212681

Country of ref document: CA

Ref document number: 2212681

Country of ref document: CA

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1996903328

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 1996 524900

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 08894270

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 1996903328

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWG Wipo information: grant in national office

Ref document number: 1996903328

Country of ref document: EP