EP0240769B1 - Steuerscheibe für Bildwiedergabevorrichtungen - Google Patents

Steuerscheibe für Bildwiedergabevorrichtungen Download PDF

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Publication number
EP0240769B1
EP0240769B1 EP87103665A EP87103665A EP0240769B1 EP 0240769 B1 EP0240769 B1 EP 0240769B1 EP 87103665 A EP87103665 A EP 87103665A EP 87103665 A EP87103665 A EP 87103665A EP 0240769 B1 EP0240769 B1 EP 0240769B1
Authority
EP
European Patent Office
Prior art keywords
conductors
openings
panel according
controller panel
glass frit
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
EP87103665A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0240769A2 (de
EP0240769A3 (en
Inventor
Kurt-Manfred Tischer
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 Deutschland GmbH
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 Deutschland GmbH filed Critical Nokia Deutschland GmbH
Publication of EP0240769A2 publication Critical patent/EP0240769A2/de
Publication of EP0240769A3 publication Critical patent/EP0240769A3/de
Application granted granted Critical
Publication of EP0240769B1 publication Critical patent/EP0240769B1/de
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
    • 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
    • H01J17/492—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with crossed electrodes
    • 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
    • H01J17/12—Control electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2217/00—Gas-filled discharge tubes
    • H01J2217/38—Cold-cathode tubes
    • H01J2217/49—Display panels, e.g. not making use of alternating current
    • H01J2217/492—Details
    • H01J2217/49264—Vessels
    • H01J2217/49271—Spacers between front and back panels

Definitions

  • the invention relates to a control disk for a flat image display device according to the preamble of claim 1.
  • a flat image display device is known from the essay "Design, Fabrication, and Performance of a flat Tube Display” by WC Holton et al (1977 International Electron Devices Meeting, pages 78 to 80, Washington, DC, USA; IEEE) Has control stack.
  • the control stack is arranged between a cathode and a fluorescent screen and is used to control the electron current. It consists of control disks, which are formed from layers of intersecting metallic conductors, between which a metal perforated disk is arranged. At the crossing points of the conductors, there are elliptical holes in the conductors which are aligned with the holes in the perforated disc.
  • the ladder and the perforated disc are each connected by glass frit and kept at a certain distance.
  • the invention is therefore based on the object of specifying a control disk without a disruptive influence on the electron current.
  • the openings Due to the special shape of the openings, the scattering of the electrons is largely prevented and focusing is achieved, which increases the transparency of the control disk for the electrons. It is advantageous if the openings each cut the adjacent conductors, because then the glass frit between the conductors is very far away from the openings and their charging cannot have any effect.
  • control disks shown in the figures are provided for a flat image display device and are used to control the electron current between the cathode and the luminescent screen.
  • Openings 2 are provided at regular intervals, each of which is arranged in such a way that it cuts adjacent conductors 1.
  • the parting line 3 between the conductors 1 runs through the middle of the openings 2.
  • the openings 2 have a rectangular shape, the long sides of which are transverse to the parting lines 3.
  • FIG. 2 shows a second layer of conductors 11 which run parallel to one another.
  • openings 22 at regular intervals, which are also arranged in such a way that they cut adjacent conductors 11. This means that the separating joints 33 run through the middle of the openings 22.
  • the openings 22 also have a rectangular shape, the short sides of which lie transversely to the separating joints 33, and have the same dimensions as the openings 2.
  • the finished control disk shown in FIG. 3 consists of the first layer of conductor 1 and the second layer of conductor 11 rotated by 90 degrees with respect to it, and accumulations of glass frit 4 arranged therebetween Glass frit 4 keeps the two layers at a certain distance from one another and connects them to one another at the same time. There may also be a glass frit edge seal between the layers (not shown).
  • the clusters of glass frit 4 are each arranged at the intersection of the conductor 1 with the conductors 11. This results in the greatest possible removal of the glass frit from the openings 2 and 22. The influence of a possible charging of the glass frit is thereby limited to the smallest possible extent.
  • the finished control disk shown in FIG. 4 consists of a first layer of conductors 1 ⁇ and the second layer of conductors 11 rotated by 90 degrees thereto and accumulations of glass frit 4 arranged between them.
  • the openings 2 ⁇ are in the middle of the conductors 1 ⁇ , so that the joints 3 ⁇ do not run through them.
  • the clusters of the glass frit 4 are closer to the openings 2 ⁇ and 22, but a simpler control circuit can be used in this embodiment.
  • the control disc can be manufactured as follows: The holes 2 are etched into a first metal disk and the later joints 3 are half-etched. The holes 22 are etched into a second metal disk and the later parting lines 33 are half-etched. The glass frit 4 is applied to the first metal disc, for example by screen printing, on the surfaces provided for the accumulations. Then the second metal disc Aligned by 90 degrees, placed on the first metal disc with the glass frit and both joined together. The joints 3 and 33 are then etched through.
  • Fig. 5 the section along the line V-V in Fig. 3 is shown by the control disc to show the special shape of the openings 2 and 22 and the accumulations of the glass frit 4.
  • Each opening 2 or 22 narrows from both sides of the respective conductor 1 or 11 to a resultant narrowest cross-sectional line 5 or 55.
  • the walls of the narrowing openings 2, 22 can form flat or curved surfaces.
  • the line 5 or 55 is approximately 0 to 30% of the conductor thickness D, preferably 25% of the conductor thickness D.
  • the width W1 of the opening 2 or 22 is further from that of the line 5 or 55 lying side of the conductor 1 or 11 slightly larger than the width W2 of the opening on the other side of the conductor.
  • the two layers of intersecting conductors 1 and 11 are now superimposed in such a way that the widths W1 of the openings 2 and 22 point towards one another. This results in an oval shape for the cross section of the space enclosed by the openings.
  • This shape largely prevents the scattering of the electrons and creates a focus of the electron current.
  • the conductors 1 and 11 are held at a certain distance A from one another by accumulations of glass frit 4.
  • the glass frit 4 insulating bodies for example glass spheres 6, are mixed (left side in FIG. 5).
  • the bodies or glass balls 6 must have the same coefficient of expansion as the glass frit 4. Their diameter is approximately 50 to 100 ⁇ m.
  • the distance A can also be achieved by applying metal 7, for example aluminum or chrome, to the conductor on the surfaces provided for the accumulation of the glass frit 4 (right side of FIG. 5) and then fritting the metal disks with the aid the glass frit 4 takes place.
  • An adhesion promoter made of copper or nickel can be present between the metal 7 and the conductors 1, 11 (not shown).

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
EP87103665A 1986-03-25 1987-03-13 Steuerscheibe für Bildwiedergabevorrichtungen Expired - Lifetime EP0240769B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863609967 DE3609967A1 (de) 1986-03-25 1986-03-25 Steuerscheibe fuer bildwiedergabevorrichtungen
DE3609967 1986-03-25

Publications (3)

Publication Number Publication Date
EP0240769A2 EP0240769A2 (de) 1987-10-14
EP0240769A3 EP0240769A3 (en) 1990-02-14
EP0240769B1 true EP0240769B1 (de) 1992-10-07

Family

ID=6297188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103665A Expired - Lifetime EP0240769B1 (de) 1986-03-25 1987-03-13 Steuerscheibe für Bildwiedergabevorrichtungen

Country Status (5)

Country Link
US (1) US4745332A (enExample)
EP (1) EP0240769B1 (enExample)
JP (1) JPS62232839A (enExample)
CA (1) CA1273987A (enExample)
DE (2) DE3609967A1 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708798A1 (de) * 1987-03-18 1988-09-29 Standard Elektrik Lorenz Ag Steuerscheibe fuer bildwiedergabevorrichtungen
US5256937A (en) * 1989-04-07 1993-10-26 Nokia (Deutschland) Gmbh Flat panel fluorescent screen display tube
DE3911355A1 (de) * 1989-04-07 1990-10-11 Nokia Unterhaltungselektronik Steueranordnung fuer eine flache anzeigeeinrichtung
JPH0322328A (ja) * 1989-06-19 1991-01-30 Matsushita Electric Ind Co Ltd 平板型画像表示装置
JPH0662499U (ja) * 1993-02-10 1994-09-02 富士電子工業株式会社 高周波加熱コイル
KR0148284B1 (ko) * 1993-04-26 1998-11-16 호소야 레이지 화상표시 패널용 기밀용기 및 화상표시 패널 및 그 제조방법
US5789857A (en) * 1994-11-22 1998-08-04 Futaba Denshi Kogyo K.K. Flat display panel having spacers
JP2727995B2 (ja) * 1994-12-15 1998-03-18 双葉電子工業株式会社 支柱材整列用治具および支柱材整列用治具の製造方法
US5898266A (en) * 1996-07-18 1999-04-27 Candescent Technologies Corporation Method for displaying frame of pixel information on flat panel display

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844512C2 (de) * 1978-10-12 1980-11-20 Siemens Ag Steuerplatte zur Matrixansteuerung einzelner Bildpunkte nach Zeile und Spalte auf einem Bildschirm in flachen Plasmabildwiedergabevorrichtungen
DE3067141D1 (en) * 1979-08-16 1984-04-26 Tokyo Shibaura Electric Co Flat display device
FR2549288B1 (fr) * 1983-07-11 1985-10-25 Hyperelec Element multiplicateur d'electrons, dispositif multiplicateur d'electrons comportant cet element multiplicateur et application a un tube photomultiplicateur
JPS6023933A (ja) * 1983-07-20 1985-02-06 Toshiba Corp マスク集束型カラ−受像管
JPS6025142A (ja) * 1983-07-21 1985-02-07 Matsushita Electric Ind Co Ltd 表示装置の電極製造方法
DE3335598A1 (de) * 1983-09-30 1985-04-18 Siemens AG, 1000 Berlin und 8000 München Verfahren zur herstellung einer elektrodenplatte, danach hergestellte elektrodenplatte und ihre verwendung
DE3429082A1 (de) * 1984-08-07 1986-02-27 Siemens AG, 1000 Berlin und 8000 München Steuerscheibe fuer gasentladungsanzeige

Also Published As

Publication number Publication date
DE3782078D1 (de) 1992-11-12
JPS62232839A (ja) 1987-10-13
DE3609967A1 (de) 1987-10-01
EP0240769A2 (de) 1987-10-14
JPH056789B2 (enExample) 1993-01-27
US4745332A (en) 1988-05-17
CA1273987A (en) 1990-09-11
EP0240769A3 (en) 1990-02-14

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