EP0155895B2 - Procédé d'opération d'écrans de visualisation plats - Google Patents

Procédé d'opération d'écrans de visualisation plats Download PDF

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Publication number
EP0155895B2
EP0155895B2 EP85430005A EP85430005A EP0155895B2 EP 0155895 B2 EP0155895 B2 EP 0155895B2 EP 85430005 A EP85430005 A EP 85430005A EP 85430005 A EP85430005 A EP 85430005A EP 0155895 B2 EP0155895 B2 EP 0155895B2
Authority
EP
European Patent Office
Prior art keywords
screen
tip
light intensity
screens
tips
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 - Lifetime
Application number
EP85430005A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0155895A1 (fr
EP0155895B1 (fr
Inventor
Jean-Paul Biberian
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Biberian Jean-Paul
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
Family has litigation
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Application filed by Biberian Jean-Paul filed Critical Biberian Jean-Paul
Priority to AT85430005T priority Critical patent/ATE44114T1/de
Publication of EP0155895A1 publication Critical patent/EP0155895A1/fr
Application granted granted Critical
Publication of EP0155895B1 publication Critical patent/EP0155895B1/fr
Publication of EP0155895B2 publication Critical patent/EP0155895B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/123—Flat display tubes
    • H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
    • H01J31/127—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using large area or array sources, i.e. essentially a source for each pixel group

Definitions

  • the conventional television tube with scanning of the electron beam cannot be reduced in thickness for physical reasons: distortion of the image if the beam arrives too grazing on the screen, and lack of precision to reach the masks on the screen in the case of color. Furthermore, the dimensions of the screen cannot be thoughtlessly increased for reasons of vacuum and therefore of resistance of the materials to pressure.
  • liquid crystals are attractive because they have a very low power consumption, but they do require an external source of light to be visible. In addition, it is very difficult to make grayscale gradations, and to produce color images.
  • the present invention relates to a method for producing flat display screens, according to claim 1.
  • the invention also relates to flat display screens obtained by implementing the above method.
  • the basic principle of the invention essentially consists in using as field source microtips as the electron source.
  • a field emission tip such as 1, having a radius of curvature of a few hundred Angstroms, emits electrons e simply by applying an electric field between the tip 1 and a fluorescent screen 2 thanks to the potential E.
  • a simple solution for manufacturing a flat display screen according to the invention consists, as shown diagrammatically in FIG. 2, of connecting: on the one hand, the tips in lines, for example the tips 1 A1 , 1 81 , 1 C1 ... along line L A1 ; points 1 A2 , 182 , 1 C2 ... along line L A2 ; points 1 A3 , 1 B3 , 1 C3 ... along line L A3 etc ...; on the other hand, the screens in columns 2A, 2 B , 2 c ...
  • This arrangement makes it possible by matrixing and row-column addressing, successive light points to be emitted on the screen.
  • the tips can be produced by deposition or etching techniques using the conventional methods of microelectronics, that is to say masking and then wet etching in acid baths or dry etching by plasma or particle beam.
  • the different columns of the screen are made of transparent material, for example glass, covered with a metallic film and a fluorescent material.
  • each light point In order to eliminate the problem of manufacturing a large number of microtips having very close radii of curvature, and also to overcome the possible failure of one of these points, it is advantageous to constitute each light point by a set of several microtips.
  • the type of screen configuration according to the invention that has just been described is of the diode type, and constitutes the simplest solution from the conceptual point of view, but problems appear at the level of the control voltages. Indeed, for the electron extraction voltage E to be low enough to allow rapid switching, the point-screen distance must be of the order of a few microns, which obviously creates technical manufacturing problems.
  • FIG. 3 A solution, both more advanced and simpler, of the invention facilitating the problems of rapid switching and making it possible to considerably reduce the technical problems which have just been mentioned above, is shown diagrammatically in FIG. 3.
  • This solution essentially consists in using a triode type assembly with a control grid 3 which makes it possible to modulate the electric intensity.
  • E 2 we change the intensity of electrons emitted
  • E 1 we change the energy of the electrons e reaching the light screen 2.
  • the invention makes it possible to solve the above problem simply and effectively by adopting the tetrode type arrangement shown diagrammatically in FIGS. 5 and 6.
  • This arrangement comprises, as in the previous cases, for each unit light point, a field emission tip 1, a fluorescent screen 2, a first extraction grid 3, a second extraction grid 4.

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Auxiliary Devices For Music (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Farming Of Fish And Shellfish (AREA)
EP85430005A 1984-03-09 1985-03-05 Procédé d'opération d'écrans de visualisation plats Expired - Lifetime EP0155895B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85430005T ATE44114T1 (de) 1984-03-09 1985-03-05 Verfahren zur herstellung flacher bildwiedergabeschirme und nach diesem verfahren hergestellte schirme.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8403877A FR2561019B1 (fr) 1984-03-09 1984-03-09 Procede de realisation d'ecrans de visualisation plats et ecrans plats obtenus par la mise en oeuvre dudit procede
FR8403877 1984-03-09

Publications (3)

Publication Number Publication Date
EP0155895A1 EP0155895A1 (fr) 1985-09-25
EP0155895B1 EP0155895B1 (fr) 1989-06-14
EP0155895B2 true EP0155895B2 (fr) 1993-09-22

Family

ID=9301995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85430005A Expired - Lifetime EP0155895B2 (fr) 1984-03-09 1985-03-05 Procédé d'opération d'écrans de visualisation plats

Country Status (6)

Country Link
US (1) US4763187B1 (ja)
EP (1) EP0155895B2 (ja)
JP (1) JP2711834B2 (ja)
AT (1) ATE44114T1 (ja)
DE (1) DE3571099D1 (ja)
FR (1) FR2561019B1 (ja)

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FR2568394B1 (fr) * 1984-07-27 1988-02-12 Commissariat Energie Atomique Dispositif de visualisation par cathodoluminescence excitee par emission de champ
DE3622259A1 (de) * 1986-07-02 1988-01-07 Standard Elektrik Lorenz Ag Flache bildwiedergabevorrichtung
US4857799A (en) * 1986-07-30 1989-08-15 Sri International Matrix-addressed flat panel display
FR2604823B1 (fr) * 1986-10-02 1995-04-07 Etude Surfaces Lab Dispositif emetteur d'electrons et son application notamment a la realisation d'ecrans plats de television
FR2632436B1 (fr) * 1988-06-01 1991-02-15 Commissariat Energie Atomique Procede d'adressage d'un ecran matriciel fluorescent a micropointes
US5225820A (en) * 1988-06-29 1993-07-06 Commissariat A L'energie Atomique Microtip trichromatic fluorescent screen
FR2633763B1 (fr) * 1988-06-29 1991-02-15 Commissariat Energie Atomique Ecran fluorescent trichrome a micropointes
FR2633765B1 (fr) * 1988-06-29 1991-09-06 Commissariat Energie Atomique Ecran fluorescent a micropointes ayant un nombre reduit de circuits d'adressage et procede d'adressage de cet ecran
US5231387A (en) * 1988-06-29 1993-07-27 Commissariat A L'energie Atomique Apparatus and method for addressing microtip fluorescent screen
US4923421A (en) * 1988-07-06 1990-05-08 Innovative Display Development Partners Method for providing polyimide spacers in a field emission panel display
CN1026943C (zh) * 1990-03-06 1994-12-07 杭州大学 平板彩色显示器
FR2669124B1 (fr) * 1990-11-08 1993-01-22 Commissariat Energie Atomique Dispositif electrooptique bistable, ecran comportant un tel dispositif et procede de mise en óoeuvre de cet ecran.
US5140219A (en) * 1991-02-28 1992-08-18 Motorola, Inc. Field emission display device employing an integral planar field emission control device
GB2254486B (en) * 1991-03-06 1995-01-18 Sony Corp Flat image-display apparatus
US5818500A (en) * 1991-05-06 1998-10-06 Eastman Kodak Company High resolution field emission image source and image recording apparatus
US5536193A (en) * 1991-11-07 1996-07-16 Microelectronics And Computer Technology Corporation Method of making wide band gap field emitter
US5402143A (en) * 1991-12-23 1995-03-28 Panocorp Display Systems Color fluorescent liquid crystal display
US5237180A (en) * 1991-12-31 1993-08-17 Eastman Kodak Company High resolution image source
US5696028A (en) * 1992-02-14 1997-12-09 Micron Technology, Inc. Method to form an insulative barrier useful in field emission displays for reducing surface leakage
US5543684A (en) 1992-03-16 1996-08-06 Microelectronics And Computer Technology Corporation Flat panel display based on diamond thin films
US5548185A (en) * 1992-03-16 1996-08-20 Microelectronics And Computer Technology Corporation Triode structure flat panel display employing flat field emission cathode
US5679043A (en) * 1992-03-16 1997-10-21 Microelectronics And Computer Technology Corporation Method of making a field emitter
US5675216A (en) * 1992-03-16 1997-10-07 Microelectronics And Computer Technololgy Corp. Amorphic diamond film flat field emission cathode
US6127773A (en) * 1992-03-16 2000-10-03 Si Diamond Technology, Inc. Amorphic diamond film flat field emission cathode
US5449970A (en) * 1992-03-16 1995-09-12 Microelectronics And Computer Technology Corporation Diode structure flat panel display
US5763997A (en) * 1992-03-16 1998-06-09 Si Diamond Technology, Inc. Field emission display device
US5686791A (en) * 1992-03-16 1997-11-11 Microelectronics And Computer Technology Corp. Amorphic diamond film flat field emission cathode
US5504387A (en) * 1992-12-26 1996-04-02 Sanyo Electric Co., Ltd. Flat display where a first film electrode, a dielectric film, and a second film electrode are successively formed on a base plate and electrons are directly emitted from the first film electrode
CA2112733C (en) * 1993-01-07 1999-03-30 Naoto Nakamura Electron beam-generating apparatus, image-forming apparatus, and driving methods thereof
KR0156032B1 (ko) * 1993-05-28 1998-10-15 호소야 레이지 전자방출소자 및 그 전자방출소자를 이용한 화상표시장치, 화상표시 장치의 구동장치, 화상표시장치의 화상표시 구동회로
US5378182A (en) * 1993-07-22 1995-01-03 Industrial Technology Research Institute Self-aligned process for gated field emitters
US5462467A (en) * 1993-09-08 1995-10-31 Silicon Video Corporation Fabrication of filamentary field-emission device, including self-aligned gate
TW272322B (ja) * 1993-09-30 1996-03-11 Futaba Denshi Kogyo Kk
US5404070A (en) * 1993-10-04 1995-04-04 Industrial Technology Research Institute Low capacitance field emission display by gate-cathode dielectric
RU2141698C1 (ru) * 1993-11-04 1999-11-20 Микроэлектроникс энд Компьютер Текнолоджи Корпорейшн Способ изготовления систем дисплея с плоским экраном и компонентов
JP3267432B2 (ja) * 1993-12-20 2002-03-18 双葉電子工業株式会社 ディスプレイ装置
DE69423716T2 (de) * 1993-12-22 2000-08-17 Canon Kk Bilderzeugungsgerät
US5451830A (en) * 1994-01-24 1995-09-19 Industrial Technology Research Institute Single tip redundancy method with resistive base and resultant flat panel display
US5786663A (en) * 1994-12-01 1998-07-28 Commissariat A L'energie Atomique Electron collector having independently controllable conductive strips
US5751262A (en) 1995-01-24 1998-05-12 Micron Display Technology, Inc. Method and apparatus for testing emissive cathodes
US6559818B1 (en) * 1995-01-24 2003-05-06 Micron Technology, Inc. Method of testing addressable emissive cathodes
KR100239688B1 (ko) * 1995-11-20 2000-01-15 김영환 필드 에미션 디스플레이(fed)의 마이크로팁 제조방법
DE19546039A1 (de) * 1995-12-09 1997-06-12 Forsch Mineralische Und Metall Bildschirm, Verfahren zu seiner Herstellung sowie Verfahren und Vorrichtung zur Darstellung von Bildern auf einem Bildschirm
US5633561A (en) * 1996-03-28 1997-05-27 Motorola Conductor array for a flat panel display
US5710483A (en) * 1996-04-08 1998-01-20 Industrial Technology Research Institute Field emission device with micromesh collimator
US6022256A (en) * 1996-11-06 2000-02-08 Micron Display Technology, Inc. Field emission display and method of making same
GB2321335A (en) * 1997-01-16 1998-07-22 Ibm Display device
US6391670B1 (en) 1999-04-29 2002-05-21 Micron Technology, Inc. Method of forming a self-aligned field extraction grid
KR100499120B1 (ko) * 2000-02-25 2005-07-04 삼성에스디아이 주식회사 카본 나노튜브를 이용한 3전극 전계 방출 표시소자
WO2007091993A2 (en) * 2005-01-31 2007-08-16 The Board Of Trustees Of The University Of Illinois Plasma extraction microcavity plasma devive and method

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US3622828A (en) * 1969-12-01 1971-11-23 Us Army Flat display tube with addressable cathode
JPS50107858A (ja) * 1974-01-30 1975-08-25
US4020381A (en) * 1974-12-09 1977-04-26 Texas Instruments Incorporated Cathode structure for a multibeam cathode ray tube
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FR2348561A1 (fr) * 1976-04-13 1977-11-10 Battelle Memorial Institute Tube videocathodique d'affichage
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Also Published As

Publication number Publication date
EP0155895A1 (fr) 1985-09-25
FR2561019A1 (fr) 1985-09-13
US4763187A (en) 1988-08-09
JPS6123479A (ja) 1986-01-31
EP0155895B1 (fr) 1989-06-14
FR2561019B1 (fr) 1987-07-17
ATE44114T1 (de) 1989-06-15
US4763187B1 (en) 1997-11-04
JP2711834B2 (ja) 1998-02-10
DE3571099D1 (en) 1989-07-20

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