WO1983002360A1 - Panneau d'affichage au gaz a double face - Google Patents

Panneau d'affichage au gaz a double face Download PDF

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Publication number
WO1983002360A1
WO1983002360A1 PCT/US1982/001779 US8201779W WO8302360A1 WO 1983002360 A1 WO1983002360 A1 WO 1983002360A1 US 8201779 W US8201779 W US 8201779W WO 8302360 A1 WO8302360 A1 WO 8302360A1
Authority
WO
WIPO (PCT)
Prior art keywords
anodes
plate
face plate
slots
depressions
Prior art date
Application number
PCT/US1982/001779
Other languages
English (en)
Inventor
Corporation Burroughs
Edgar Lloyd Harvey
Albert James Hardwick
Hector Robert Schorno
Original Assignee
Burroughs Corp
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 Burroughs Corp filed Critical Burroughs Corp
Priority to JP83500407A priority Critical patent/JPS58502121A/ja
Publication of WO1983002360A1 publication Critical patent/WO1983002360A1/fr

Links

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
    • H01J17/494—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with crossed electrodes using sequential transfer of the discharges, e.g. of the self-scan type
    • 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

Definitions

  • Fig. 1 is a perspective view, partly in section, of a display panel embodying the invention.
  • Fig. 2 is a sectional view along the lines
  • a SELF-SCA display panel 10 embodying the invention includes a glass center plate 20 having a plurality of parallel longitudinal slots 30 which extend partially into the top surface 22 thereof and completely across the surface of the plate 20.
  • Anode electrodes 40S and 40D which may be in the form of wires, are seated in the slots 30, with the anodes 40S and 40D alternating with each other.
  • Anodes 40S are scan anodes, and anodes 40D are display anodes.
  • Two short slots 34 are provided in the top surface of the plate 20, one adjacent to the uppermost slot 30, and one adjacent to the lowermost slot 20. Two short electrodes 44 and 46 are seated in the short slots 34.
  • Cathode electrodes 50 in the form of narrow, parallel strips are provided on the top surface 22 of the plate 20.
  • the locations at which each cathode crosses an anode 40 defines a column of cells; where each scan anode 40S is crossed by a cathode is a scan cell, and where each display anode 40D is crossed by a cathode is a display cell.
  • the scan cells alternate with the display cells, and in the rows of cells, the scan cells are aligned, and the display cells are aligned.
  • the bottom surface 24 of plate 20 is provided with full length longitudinal slots 32 in which anode wires 42S and 42D are seated.
  • the slots 30 and 32 are vertically aligne > and anodes 40S and 42S and anodes 40D and 42D are also vertically aligned.
  • cathode strips 52 like cathodes 50, are provided on the bottom surface of plate 20 to form a second array of scan and display cells.
  • Short slots 36 carrying short electrodes- 48 and 49 are disposed adjacent to the uppermost and lowermost slots 32 and in alignment with slots 34 and electrodes 44 and 46.
  • the two sets of anode wires 40 and 42 may be formed by winding a single wire around the plate 20, suitably securing a length of wire in each slot 30 and 32 by means of a glass frit, and then cutting the wires to form the individual anodes.
  • the two sets of cathode strip electrodes 50 and 52 may be formed by winding a single strip around the plate 20, securing the strip to the plate by means of a glass frit, and then cutting to form the individual cathodes. This is illustrated with some of the cathodes in Fig..land in Fig. 2.
  • the first strip electrode 68 is a keep-alive electrode which operates with short electrodes 42 and 44 which only extend up to the vicinity of this electrode.
  • the strip electrode 69 is a keep-alive electrode with short electrodes 48 and 49 which extend only up to electrode 69.
  • the second strip electrodes 60 and 62 are operated as reset cathodes at the beginning of a scanning cycle.
  • the reset cathode 60 forms a column of reset cells with the anodes 40
  • the reset cathode 62 forms a column of reset cells with anodes 42.
  • the other strip electrodes 50 and 52 operate with anodes 40 and 42 to form scan and display cells as described above.
  • the reset cathodes 60 and 62 and keep-alive electrodes 68 and 69 are preferably of the same material as cathodes 50 and 52, and, as noted, all may be set in place by a winding operation.
  • the panel 10 includes a first glass face plate 70 having an inner surface which is chemically etched to
  • OMPI provide a plurality of parallel slots or depressions 80 having a depth of 3 to 4 mils.
  • This surface of the face plate is coated with a thin layer 90 of black insulating material to provide light-contrast. This layer is about one mil thick, and it covers the entire inner surface of the face plate, except for a narrow perimeter seal area, and it does not cover the depressions 80.
  • - Slots 92 in coating 90 are aligned with depressions 80 in the face plate 70.
  • the face plate 70 is hermetically sealed to the top surface 22 of plate 20 and seated on the cathodes 50, 60 and electrode 68 by means of thin glass frit sealing ring 100 which is provided along the aligned perimeters of plates 70 and 20.
  • a ring of sealing frit 84 is also provided on the top surface 22 of plate 20 under the strip electrodes.
  • the panel 10 also includes a second glass face plate 72, similar to the first face plate 70, having slots or depressions 82, and a coating 94 of black insulating material having slots 96.
  • the second face plate 72 is hermetically sealed to the bottom surface 24 of plate 20 by means of a glass frit perimeter sealing ring 102 and in the same orientation with respect to its anodes and cathodes as face plate 70 to its anodes and cathodes.
  • a sealing frit ring 86 is provided on the bottom surface 24 of plate 20 under the strip electrodes.
  • the first face plate assembly is so constructed that, when it is secured to the plate 20, the channels or depressions 80 therein are aligned with and lie along (1) the slots 92 in black coating 90 and (2) slots 30 in which display anodes 40D are seated and which comprise columns of display cells.
  • the black coating 90 on the face plate covers the columns of scan cells so that they cannot be seen through the face plate. The same applies to the second face plate assembly.
  • the panel 10 is filled in any suitable manner with an ionizable gas such as neon or argon and a small quantity of xenon. It can be seen that the panel 10 includes essentially two SELF-SCAN panels in one, an upper panel made up of the electrodes adjacent to the-top surface of plate 20, and a lower panel made up of the electrodes adjacent to the lower surface of plate 20.
  • SELF-SCAN panels The operation of SELF-SCAN panels is described in many patents, including U. S. Patent No. 3,989,981, dated November 2, 1976, of James A. Ogle and George E. Holz and U. S. Patent No. 3,631,530, dated December 28 1971, of James A. Ogle, both of which are incorporated -herein by reference.
  • Each portion of panel 10 is operated in the same way as other SELF-SCAN panels in that the columns of scan cells are turned on sequentially, and, as each column is turned on, information signals are applied to selected display anodes to cause glow to transfer from the thus selected scan cell to the adjacent display cell where display glow appears. This operation is carried out continually and sequentially throughout the columns of cells of the panel to provide in the selected display cells an apparently stationary but changeable message.
  • Panel 10 operates more like the latter Ogle patent, and, considering the operation somewhat more specifically, and particularly the upper portion, operating potentials are applied to keep-alive electrodes 68 and 42, 44 so that electrode 68 is an anode and electrodes 42 and 44 operate as glow cathodes and generate excited particles. Positive potential is applied to all of the scan anodes 40S, and more negative potential is applied to the reset cathode 60, and this, with the keep-alive particles, causes the turn-on of the column of reset cells formed by the crossing of reset cathode 60 and the scan anodes 40S. This is the beginning of a scanning cycle.
  • the scanning cycle then is carried out by the application of negative cathode operating potential to each of the cathodes 50 in turn, beginning with the cathode adjacent to the reset cathode 60 * This turns on all of the scan cells in each column of cells sequentially. With all scan cells in a column turned on, there is cathode scan glow on the lower surface of the energized cathode 50 above all of the scan anodes 40S. This scan glow is not visible to a viewer either because it is at the lower surface of each cathode; or, if it moves to the upper surface, it is not visible because of black coating 90.
  • the lower portion of the panel 10 operates in the same way; however, in order to have the identical message appear in the lower portion of the panel as in the upper portion, the information must be fed into the panel in the reverse direction to have it displayed as it is in the upper portion of the panel. If, however, the keep-alive electrode 69 and the reset cathode 62 are positioned at the opposite end of the panel as indicated by dash line r"eference numerals in Fig. 1, then the operation of the lower portion of the panel can be identical to the operation of the upper portion of the panel.
  • panel 10 is operable to present the same message to two viewers, one looking through face plate 70 and the other looking through faee plate 72.

Landscapes

  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

Un panneau d'affichage à double face (10) comprend une enveloppe remplie de gaz constituée d'une plaque centrale en verre (20) ayant une première plaque de face (70) scellée hermétiquement (84) sur sa surface supérieure et une seconde plaque de face en verre (72) scellée hermétiquement sur sa surface inférieure. La plaque centrale (20) est pourvue d'une pluralité de fentes parallèles longitudinales (30, 32) dans la surface supérieure et dans la surface inférieure (22, 24) et un fil d'anode (40S, 40D, 42S, 42D) est disposé dans chacune des fentes (30, 32) dans les deux surfaces (22, 24). Une languette métallique est enroulée sur la plaque puis est découpée pour former deux réseaux d'électrodes cathodiques en languettes (50, 52), un réseau sur chaque surface de la plaque et orienté en faisant un angle avec les fils d'anode associés (40S, 40D, 42S, 42D), les anodes (40S, 40D, 42S, 42D) et les cathodes (50, 52) définissant des rangées et des colonnes de cellules remplies de gaz. Chaque plaque (70) porte une série d'évidements parallèles (80) surjacents et alignés avec les rangées de cellules sélectionnées qui comprennent des cellules d'affichage, et une pellicule fine d'un matériau d'isolation noir (90, 92) est prévue sur chaque plaque de face (70, 72) recouvrant toute la plaque de face (70, 72) à l'exception des évidements (80, 82) dans la plaque de face (70, 72).
PCT/US1982/001779 1981-12-30 1982-12-21 Panneau d'affichage au gaz a double face WO1983002360A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP83500407A JPS58502121A (ja) 1981-12-30 1982-12-21 両面表示パネルとその製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33575681A 1981-12-30 1981-12-30
US335,756811230 1981-12-30

Publications (1)

Publication Number Publication Date
WO1983002360A1 true WO1983002360A1 (fr) 1983-07-07

Family

ID=23313117

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1982/001779 WO1983002360A1 (fr) 1981-12-30 1982-12-21 Panneau d'affichage au gaz a double face

Country Status (2)

Country Link
JP (1) JPS58502121A (fr)
WO (1) WO1983002360A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327154A (en) * 1965-03-24 1967-06-20 Gen Telephone & Elect Ionizable gas display device with segmented electrode pattern
US3631530A (en) * 1969-12-01 1971-12-28 Burroughs Corp Compact display panel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327154A (en) * 1965-03-24 1967-06-20 Gen Telephone & Elect Ionizable gas display device with segmented electrode pattern
US3631530A (en) * 1969-12-01 1971-12-28 Burroughs Corp Compact display panel

Also Published As

Publication number Publication date
JPS58502121A (ja) 1983-12-08

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