EP0170130A1 - Ecran fluorescent pour indicateurs d'images et procédé pour sa fabrication - Google Patents

Ecran fluorescent pour indicateurs d'images et procédé pour sa fabrication Download PDF

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Publication number
EP0170130A1
EP0170130A1 EP85108683A EP85108683A EP0170130A1 EP 0170130 A1 EP0170130 A1 EP 0170130A1 EP 85108683 A EP85108683 A EP 85108683A EP 85108683 A EP85108683 A EP 85108683A EP 0170130 A1 EP0170130 A1 EP 0170130A1
Authority
EP
European Patent Office
Prior art keywords
screen
fluorescent
layer
glass plate
black
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.)
Granted
Application number
EP85108683A
Other languages
German (de)
English (en)
Other versions
EP0170130B1 (fr
Inventor
Rolf Dr. Rer. Nat. Dipl.-Phys. Wengert
Pietro Cicchi
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.)
Nokia Deutschland GmbH
Original Assignee
Nokia Unterhaltungselektronik Deutschland GmbH
Siemens AG
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 Nokia Unterhaltungselektronik Deutschland GmbH, Siemens AG filed Critical Nokia Unterhaltungselektronik Deutschland GmbH
Publication of EP0170130A1 publication Critical patent/EP0170130A1/fr
Application granted granted Critical
Publication of EP0170130B1 publication Critical patent/EP0170130B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
    • H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • 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
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings
    • H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
    • H01J9/2277—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by other processes, e.g. serigraphy, decalcomania
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/917—Electroluminescent

Definitions

  • the invention relates to a fluorescent screen according to the preamble of claim 1.
  • the invention further relates to a method for producing such a fluorescent screen.
  • Multi-color fluorescent screens are usually produced in a known manner with the aid of an elaborate “slurry” photo technology process.
  • Other proposals have also been made for applications with flat image display devices.
  • a spraying method is known from DE-OS 28 04 127, which, however, can only be used up to certain resolution limits with regard to detent roughness.
  • DE-OS 23 06 436 and DE-OS 25 55 172 describe processes for the production of conductive, mechanically stable, in particular black, color point borders, which have proven themselves and which are assumed here.
  • the invention is therefore based on the object of creating a high-resolution multi-color fluorescent screen, the Rb 1 Lk / 30.7.1984 the following conditions are sufficient: the thickness of the phosphor layer should be as small as possible while at the same time having a high surface coverage density (high transparency). The highest color purity is to be achieved and in particular a combination of false colors on the surface of the layer of the respective color (electron beam - exposed side) is to be avoided. In addition, the color areas are to be separated by areas colored black to increase the contrast and to sharply separate the light-exciting electron beams for the individual colors (color purity in electron beam mode).
  • the fluorescent colors preferably the colors red, green and blue
  • further phototechnical processes in the phosphor coating are not required and all the requirements mentioned are met.
  • the invention has significant advantages that can only be achieved together with the new screen printing method.
  • a phosphor layer texture is required which, with a very high surface coverage density with phosphor "bodies”, optimally set size and light efficiency (grain 0.1 ⁇ m to 30 ⁇ m) depending on the type at the same time, the lowest possible layer thickness, that is, high light transparency.
  • This is achieved by the method according to the invention by adjusting the flow properties of the phosphor paste and by precisely metering the amount per area during printing. For example, such a layer production is obviously not feasible with the known “slurry” photo technology.
  • This fluorescent screen is manufactured, for example, as follows: A layer is vapor-deposited on a glass plate (screen plate) of any size and thickness (flat or cylindrically curved), preferably in a layer sequence Al203-Ni-Al203-Ni (approx. One to twenty sequences of different thicknesses between 2 nm and 100nm and a Ni final layer between 20nm and 1000nm).
  • the vapor-deposited structure is etched off where the coating with fluorescent material is intended (creation of "windows" of any structure).
  • the glass is etched onto the coating surface in a manner known per se, in such a way that depressions of between 1 ⁇ m and 50 ⁇ m are formed and at the same time an etching which is as smooth as possible is achieved, for example with an etching solution of the following
  • the depression sc is set so that it approximately corresponds to the later targeted luminous layer thickness, so that the surface that is as smooth as possible (field strength load) is present as the basis for the aluminization of the fluorescent screen to be applied later.
  • the fluorescent structure (preferably three colors: red, green, blue and, in the case of a very fine grid ( ⁇ 0.3 mm step), preferably a line arrangement (inline) is produced by printing the individual colors in succession, adjusted at the positions provided for this within the black border It is important that the passage of the amount of phosphor is in a precise relationship to the targeted layer thickness, the stencil area and the flow properties of the phosphor paste.
  • An essential component of the phosphor paste is an adhesion promoter which remains in the tempered state (after the binder components have been "driven out”).
  • An SiO 2 coating liquid can be used, for example ..
  • the thickness of the phosphor layers is set between 1 ⁇ m and 70 ⁇ m, preferably about 20 ⁇ m in the above phosphor examples. It is essential for this that the printing area on the stencil (screen) has only about 20% to 70%, preferably 40%, area opening compared to the area to be printed.
  • the screens suitable for printing are between 165mesh and 600mesh (preferably 400mesh), depending on the resolution of the grid required.
  • annealing ensures that all binder fractions are evaporated, a major advantage of the proposed screen printing process being that a very low binder fraction can be used in order to achieve a high areal density of the phosphor coating.
  • the desired thickness of the black border after sintering the glass solder print is between 2 ⁇ m and 60 ⁇ m.
  • any "black dye” addition is permitted which ensures the constancy of the thermal expansion and the strength of the glass solder application after sintering. All types are generally suitable as binder systems if a complete burn-out is guaranteed at the temperature required or maximum permissible for a particular type of glass solder; a suitable glass solder mixture:
  • the fluorescent screen glass 1 shown in FIG. 1 has depressions 4.
  • the depressions 4 are approximately 10 ⁇ m to 20 ⁇ m etched into the fluorescent screen glass 1 and are preferably provided with the colors red (R), green (G) and blue (B) as the phosphor layer 6, which are screen-printed through the film 2, which has screen openings 3 is provided, applied.
  • the black border 5 is applied using photo technology (thin layer).
  • the black border 5 is applied in screen printing as black glass solder through the screen openings 3 in the film 2 onto the fluorescent screen glass 1, so that depressions 4 are formed which, depending on the glass solder thickness, are approximately 20 ⁇ m and for receiving the phosphor layer 6 (fluorescent screen colors).

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Printing Methods (AREA)
EP85108683A 1984-07-31 1985-07-11 Ecran fluorescent pour indicateurs d'images et procédé pour sa fabrication Expired EP0170130B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3428244 1984-07-31
DE3428244 1984-07-31

Publications (2)

Publication Number Publication Date
EP0170130A1 true EP0170130A1 (fr) 1986-02-05
EP0170130B1 EP0170130B1 (fr) 1989-09-27

Family

ID=6242038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108683A Expired EP0170130B1 (fr) 1984-07-31 1985-07-11 Ecran fluorescent pour indicateurs d'images et procédé pour sa fabrication

Country Status (4)

Country Link
US (1) US4622272A (fr)
EP (1) EP0170130B1 (fr)
JP (1) JPS6142839A (fr)
DE (1) DE3573354D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599173A1 (fr) * 1986-05-21 1987-11-27 Rockwell International Corp Panneau d'affichage electroluminescent et son procede de fabrication
FR2736463A1 (fr) * 1994-05-04 1997-01-10 Motorola Inc Dalle d'ecran d'affichage d'images dotee de creux de reception de gouttelettes de luminophores et son procede de fabrication

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6376235A (ja) * 1986-09-18 1988-04-06 Mitsubishi Electric Corp 陰極線管
US5019325A (en) * 1988-10-26 1991-05-28 Westinghouse Electric Corp. Method for removing and installing a control rod drive
US4973443A (en) * 1988-10-26 1990-11-27 Westinghouse Electric Corp. System for removing and installing a control rod drive
US5169593A (en) * 1989-11-03 1992-12-08 General Electric Company Control rod drive handling tools for nuclear reactor
EP0529090B1 (fr) * 1991-03-06 1996-11-27 Miyota Kabushiki Kaisha Dispositif cathodoluminescent
KR950034365A (ko) * 1994-05-24 1995-12-28 윌리엄 이. 힐러 평판 디스플레이의 애노드 플레이트 및 이의 제조 방법
JPH08129963A (ja) * 1994-10-31 1996-05-21 Hitachi Ltd カラー陰極線管
US5608285A (en) * 1995-05-25 1997-03-04 Texas Instruments Incorporated Black matrix sog as an interlevel dielectric in a field emission device
US5577943A (en) * 1995-05-25 1996-11-26 Texas Instruments Inc. Method for fabricating a field emission device having black matrix SOG as an interlevel dielectric
JPH11510755A (ja) * 1996-06-11 1999-09-21 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ スクリーン印刷またはステンシル印刷方法による基板上へのカラー素子の用意
JPH10302667A (ja) * 1997-04-28 1998-11-13 Nec Kansai Ltd カラー陰極線管とその製造方法
KR100360880B1 (ko) * 1999-12-14 2002-11-13 엘지전자 주식회사 피디피 표시소자용 광흡수 안료
EP1527150A2 (fr) * 2002-07-30 2005-05-04 Siemens Aktiengesellschaft Procede de metallisation sous vide d'un support avec un materiau a fluorescence x sous forme d'aiguille et materiau a fluorescence x correspondant
JP5088630B2 (ja) * 2008-08-27 2012-12-05 大日本印刷株式会社 導電性バンプ付き基板シート製造方法
JP5881414B2 (ja) 2011-04-20 2016-03-09 Hoya株式会社 携帯機器用カバーガラス

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1537483A1 (de) * 1967-09-23 1969-10-23 Telefunken Patent Verfahren zur Herstellung eines Leuchtschirmes fuer Farbbildkathodenstrahlroehren
DE2133889A1 (de) * 1970-07-07 1972-02-03 Motorola Inc Bildschirm für Farbfernseh-Bildröhren
DE2804127A1 (de) * 1978-01-31 1979-08-02 Siemens Ag Verfahren zur herstellung eines planen oder in einer richtung gekruemmten leuchtstoffschirmes fuer flache farb-bildschirme und -bildanzeigegeraete
DE2806436A1 (de) * 1978-02-15 1979-08-16 Siemens Ag Verfahren zum herstellen von insbesondere schwarz gefaerbten umrandungen von bildschirmpigmenten einstellbarer leitfaehigkeit fuer vorzugsweise flache farb-bildschirme

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE787613A (fr) * 1971-08-18 1973-02-16 Philips Nv Procede pour la realisation d'un ecran luminescent d'un tube detelevision en couleur
JPS5132271A (en) * 1974-09-13 1976-03-18 Hitachi Ltd Heimenhyojipaneru no keikotai no fuchakuhoho
DE2855142C2 (de) * 1978-12-20 1985-01-17 Siemens AG, 1000 Berlin und 8000 München Leuchtschirm einer Bildanzeigeröhre

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1537483A1 (de) * 1967-09-23 1969-10-23 Telefunken Patent Verfahren zur Herstellung eines Leuchtschirmes fuer Farbbildkathodenstrahlroehren
DE2133889A1 (de) * 1970-07-07 1972-02-03 Motorola Inc Bildschirm für Farbfernseh-Bildröhren
DE2804127A1 (de) * 1978-01-31 1979-08-02 Siemens Ag Verfahren zur herstellung eines planen oder in einer richtung gekruemmten leuchtstoffschirmes fuer flache farb-bildschirme und -bildanzeigegeraete
DE2806436A1 (de) * 1978-02-15 1979-08-16 Siemens Ag Verfahren zum herstellen von insbesondere schwarz gefaerbten umrandungen von bildschirmpigmenten einstellbarer leitfaehigkeit fuer vorzugsweise flache farb-bildschirme

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACT OF JAPAN, unexamined applications, E Sektion, Band 3, Nr. 25, 28. Februar, 1979 THE PATENT OFFICE JAPANESE GOVERNMENT Seite 136 E 94; & JP-A-54 003 463 (HITACHI SEISAKUSHO) 11-01-1979 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599173A1 (fr) * 1986-05-21 1987-11-27 Rockwell International Corp Panneau d'affichage electroluminescent et son procede de fabrication
FR2736463A1 (fr) * 1994-05-04 1997-01-10 Motorola Inc Dalle d'ecran d'affichage d'images dotee de creux de reception de gouttelettes de luminophores et son procede de fabrication

Also Published As

Publication number Publication date
JPS6142839A (ja) 1986-03-01
EP0170130B1 (fr) 1989-09-27
US4622272A (en) 1986-11-11
DE3573354D1 (en) 1989-11-02

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