GB1279406A - Improvements in or relating to gas discharge display devices - Google Patents

Improvements in or relating to gas discharge display devices

Info

Publication number
GB1279406A
GB1279406A GB3404368A GB3404368A GB1279406A GB 1279406 A GB1279406 A GB 1279406A GB 3404368 A GB3404368 A GB 3404368A GB 3404368 A GB3404368 A GB 3404368A GB 1279406 A GB1279406 A GB 1279406A
Authority
GB
United Kingdom
Prior art keywords
electrodes
cathodes
anodes
cathode
pair
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
Application number
GB3404368A
Inventor
Dennis Godson Holloway
Raymond Frederick Purton
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.)
PLESSEY TELECOMM RES Ltd
Plessey Telecommunications Research Ltd
Original Assignee
PLESSEY TELECOMM RES Ltd
Plessey Telecommunications Research Ltd
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 PLESSEY TELECOMM RES Ltd, Plessey Telecommunications Research Ltd filed Critical PLESSEY TELECOMM RES Ltd
Priority to GB3404368A priority Critical patent/GB1279406A/en
Publication of GB1279406A publication Critical patent/GB1279406A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/10—AC-PDPs with at least one main electrode being out of contact with the plasma
    • H01J11/12—AC-PDPs with at least one main electrode being out of contact with the plasma with main electrodes provided on both sides of the discharge space
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
    • G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
    • G09G3/29—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels using self-shift panels with sequential transfer of the discharges from an input position to a further display position

Abstract

1279406 Glow discharge lamps PLESSEY TELECOMMUNICATIONS RESEARCH Ltd 16 Oct 1969 [17 July 1968] 34043/68 Heading H1D [Also in Division G5] A display device comprises a gas discharge panel comprising a plurality of gas filled channels 1, 2 each with a plurality of electrodes 113a spaced along its length confronting one or more other electrodes 111, a plurality of common leads 103, 104, 105 connected in cyclic order to the plurality of electrodes and generating means connected to the leads supplying phase displaced voltage waveforms to shift display patterns along the rows. A train of signal pulses of ignite potential corresponding to the required display is applied to each start cathode 112, 122 and these are moved by the waveforms of sustain potential along the channels. The rows may be interconnected and signal pulses applied only to one cathode 112. In another embodiment there are only two common leads each connected to alternate cathodes 113a and anodes 111, 121 are replaced by a series of discrete anodes each at the mid point between cathodes 113a. These anodes may be joined to form vertical strips similar to the cathodes. The anodes are connected to a pair of common leads as are the cathodes and equal and opposite waveforms are applied to each lead of a pair, with a phase difference between each pair. To operate with A.C. potentials the electrodes are placed on the outside of glass plates 7, 9 which may have a SiO 2 layer deposited on their inner faces to form a more consistent surface. Additional electrodes across which a discharge is continuously maintained may be included. The device functions as a shift register and data can be obtained from the final cathode. The input cathode 112 may be at the centre of the panel and the display shifted either way.
GB3404368A 1968-07-17 1968-07-17 Improvements in or relating to gas discharge display devices Expired GB1279406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3404368A GB1279406A (en) 1968-07-17 1968-07-17 Improvements in or relating to gas discharge display devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3404368A GB1279406A (en) 1968-07-17 1968-07-17 Improvements in or relating to gas discharge display devices

Publications (1)

Publication Number Publication Date
GB1279406A true GB1279406A (en) 1972-06-28

Family

ID=10360657

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3404368A Expired GB1279406A (en) 1968-07-17 1968-07-17 Improvements in or relating to gas discharge display devices

Country Status (1)

Country Link
GB (1) GB1279406A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2349399A1 (en) * 1972-10-02 1974-04-11 Ncr Co GAS DISCHARGE SYSTEM
DE2457749A1 (en) * 1973-12-26 1975-07-10 Burroughs Corp DISPLAY BOARD
EP0028252A1 (en) * 1979-05-09 1981-05-13 Ncr Corporation Input-keep alive arrangement for plasma charge transfer device
US4333040A (en) * 1978-06-19 1982-06-01 Hitachi, Ltd. Gas discharge display device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2349399A1 (en) * 1972-10-02 1974-04-11 Ncr Co GAS DISCHARGE SYSTEM
DE2457749A1 (en) * 1973-12-26 1975-07-10 Burroughs Corp DISPLAY BOARD
US4333040A (en) * 1978-06-19 1982-06-01 Hitachi, Ltd. Gas discharge display device
EP0028252A1 (en) * 1979-05-09 1981-05-13 Ncr Corporation Input-keep alive arrangement for plasma charge transfer device
EP0028252A4 (en) * 1979-05-09 1982-08-05 Ncr Corp Input-keep alive arrangement for plasma charge transfer device.

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed