WO1983002359A1 - Panneau d'affichage au gaz avec anodes de balayage et d'affichage dans la plaque de base - Google Patents

Panneau d'affichage au gaz avec anodes de balayage et d'affichage dans la plaque de base Download PDF

Info

Publication number
WO1983002359A1
WO1983002359A1 PCT/US1982/001778 US8201778W WO8302359A1 WO 1983002359 A1 WO1983002359 A1 WO 1983002359A1 US 8201778 W US8201778 W US 8201778W WO 8302359 A1 WO8302359 A1 WO 8302359A1
Authority
WO
WIPO (PCT)
Prior art keywords
anodes
cells
face plate
base plate
display
Prior art date
Application number
PCT/US1982/001778
Other languages
English (en)
Inventor
Corporation Burroughs
Edgar Lloyd Harvey
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 JP83500410A priority Critical patent/JPS58501889A/ja
Publication of WO1983002359A1 publication Critical patent/WO1983002359A1/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

Definitions

  • SELF-SCAN panel One type of display panel which has . been made and sold commercially is known as a SELF-SCAN panel and 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.
  • a version of this type of panel, known as SELF-SCAN I panel includes two layers of cells, a lower layer of scanning cells, and an upper layer of display cells, with each display cell in operative relation with a scanning cell.
  • Another version of this general type of panel has the scan cells and display cells coplanar, and is known as a single layer panel, or as a SELF-SCAN II panel. This type of panel is described in U. S. Patent No.
  • Fig. 1 is a perspective exploded view of a display panel embodying the invention
  • Fig. 2 is a sectional view of the panel of Fig. 1 shown assembled, and along the lines 2-2 in Fig. 1;
  • Fig. 3 is a plan view of a portion of the panel of Fig. 1;
  • Fig. 4 is a plan view of a portion of a panel embodying a modification of the invention.
  • Fig. 5 is a perspective view of a portion of the panel illustrated in Fig. 4.
  • a SELF-SCAN display panel 10 embodying the invention includes a glass base plate 20 having a plurality of parallel longitudinal slots 30 which extend ' across and into the top surface 22 thereof.
  • 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.
  • Cathode electrodes 50 in the form of narrow strips and disposed in pairs with each pair including cathodes 50A and 50B, are provided on the top surface of the base plate, with the cathodes 50A*and 50B of each pair being spaced apart to define a narrow space of about 5 mils between them, and with the cathode pairs being spaced apart from each other a suitable distance.
  • the location at which each cathode pair crosses an anode 40 defines a column of cells; where each scan anode 40S is crossed by a cathode pair is a scan cell 56, and where each display anode 40D is crossed by a cathode pair is a display cell 58.
  • 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.
  • a SELF-SCAN panel also includes a reset cathode electrode 60 adjacent to the first cathode pair 50A-50B in the array of cathodes 50.
  • the reset cathode forms a column of reset cells with the anodes 40.
  • a keep-alive arrangement comprising a strip electrode 68 adjacent to the reset cathode 60 and operable with two electrodes 42 and 44 seated in slots 32 in the base plate adjacent to the first and last anodes 40.
  • the slots 32 are only of sufficient length to permit electrodes 42 and 44 to extend under and lie in operative relation with electrode strip 68 with which they provide the desired keep-alive action.
  • the panel 10 includes a glass face plate 70 having an inner surface which is chemically etched to provide a plurality of parallel shallow slots or depressions 80 having a depth of about 3 to 4 mils.
  • the slots 80 are disposed transverse to the cathodes 50 and overlie each row of display cells.
  • This inner surface of the face plate 70 is coated with a thin layer 90 of black .insulating material to provide light contast. This layer is about one mil, thick, and it covers the entire inner surface of the face plate, but not the slots or depressions 80.
  • the layer 90 has display slots 92 which are aligned with the slots 80 in the face plate. These slots 92 in coating 90 are also aligned with- the rows of display cells.
  • the rest of the layer 90 overlies the scan cells and blocks them from being seen through the face plate 70.
  • the face plate is hermetically sealed to the base plate and seated on the cathodes 50, 60 and
  • the anode slots 30 are filled with the sealing material along the edges of the panel so that the panel is completely hermetically sealed.
  • the panel is filled in any suitable manner with an ionizable gas such as neon or argon and a small quantity of xenon.
  • the scanning cycle then is carried out by the application of operating potential to each of the cathode pairs 50 in turn, beginning with the cathodes adjacent to the reset cathode 60.
  • This turns on all of the scan cells in each column of cells sequentially.
  • This glow is not visible to a viewer because of black coating 90.
  • information signals of sufficient magnitude are applied to selected display anodes 40D to cause glow to transfer from selected scan cells to the adjacent display cells associated with the selected anodes 40S.
  • display glow will be present between cathodes 50A and 50B over those selected display anodes. This glow is visible in slots 80 in the face plate. This scanning operation is continued .sequentially and repetitively to maintain an apparently stationary message displayed in the display cells in accordance with the input information applied to the display anodes.
  • each cathode 50 might comprise a single strip electrode as illustrated in Fig. 4, with all of the other panel parts being the same.
  • glow is present at the lower surface of the overlying 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.
  • OMPI aligned with slots 92 and 80 As above, as the scanning operation is carried out through the panel and selected display cells are caused to glow, an apparently stationary but changeable message is visible in the energized display cells.
  • the panels described above have the advantage that they may be built relatively easily by winding the anodes and the cathodes and then cutting the wound wire to provide the desired individual electrodes.
  • these panels have a minimum number of parts of simple construction; and, since, in effect, all electrodes are formed on one plate, complex alignment problems are avoided. Also, since the glow cathodes are close to the face plate, the panel has a very favorable viewing angle.

Landscapes

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

Abstract

Un panneau d'affichage (10) comprend une enveloppe remplie de gaz formée d'une plaque de base (20) et d'une plaque antérieure (70) scellées hermétiquement ensemble. La plaque de base (20) est munie d'une multitude de fentes parallèles et longitudinales (30), et un fil d'anode (40S, 40D) est placé dans chacune des fentes (30) de la plaque de base (20). Une bande de métal est enroulée sur la plaque de base (20) et ensuite coupée pour former un réseau de bandes d'électrodes cathodiques (50) sur la plaque de base (20) à angle droit par rapport aux fils d'anodes (40S, 40D), de telle sorte que les anodes (40S, 40D) et les cathodes (50) définissent des rangées et des colonnes de cellules (58) remplies de gaz. La plaque antérieure (70) porte une série de dépressions parallèles (80) surjacentes et alignées sur des rangées sélectionnées de cellules qui comprennent des cellules d'affichage (58). Un mince film de matériau noir isolant (90) sur la plaque antérieure (70) recouvre le tout, sauf les dépressions (80) de la plaque antérieure (70).
PCT/US1982/001778 1981-12-30 1982-12-21 Panneau d'affichage au gaz avec anodes de balayage et d'affichage dans la plaque de base WO1983002359A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP83500410A JPS58501889A (ja) 1981-12-30 1982-12-21 表示パネル

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33575381A 1981-12-30 1981-12-30
US335,753811230 1981-12-30

Publications (1)

Publication Number Publication Date
WO1983002359A1 true WO1983002359A1 (fr) 1983-07-07

Family

ID=23313107

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1982/001778 WO1983002359A1 (fr) 1981-12-30 1982-12-21 Panneau d'affichage au gaz avec anodes de balayage et d'affichage dans la plaque de base

Country Status (3)

Country Link
EP (1) EP0083257A3 (fr)
JP (1) JPS58501889A (fr)
WO (1) WO1983002359A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631530A (en) * 1969-12-01 1971-12-28 Burroughs Corp Compact display panel
US3863087A (en) * 1973-09-20 1975-01-28 Burroughs Corp Display panel having an array of insulated strip electrodes
US3989981A (en) * 1972-05-19 1976-11-02 Burroughs Corporation Panel-type display device
US4099098A (en) * 1975-11-28 1978-07-04 Burroughs Corporation Display panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631530A (en) * 1969-12-01 1971-12-28 Burroughs Corp Compact display panel
US3989981A (en) * 1972-05-19 1976-11-02 Burroughs Corporation Panel-type display device
US3863087A (en) * 1973-09-20 1975-01-28 Burroughs Corp Display panel having an array of insulated strip electrodes
US4099098A (en) * 1975-11-28 1978-07-04 Burroughs Corporation Display panel

Also Published As

Publication number Publication date
EP0083257A3 (en) 1984-04-25
EP0083257A2 (fr) 1983-07-06
JPS58501889A (ja) 1983-11-04

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