US3775764A - Multi-line plasma shift register display - Google Patents

Multi-line plasma shift register display Download PDF

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US3775764A
US3775764A US00294006A US3775764DA US3775764A US 3775764 A US3775764 A US 3775764A US 00294006 A US00294006 A US 00294006A US 3775764D A US3775764D A US 3775764DA US 3775764 A US3775764 A US 3775764A
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electrodes
channel
plasma
arrays
charge transfer
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J Gaur
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NCR Voyix Corp
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NCR Corp
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    • 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

Definitions

  • ABSTRACT In the present invention at least two rows of plasma charge transfer devices have their holding arrays of electrodes connected to a common sequential potential source while the stepping and entering arrays of each row are connected to independent sequential potential sources.
  • Each independent source is controlled by a logic means, such that an input character signal, applied to all the rows of transfer devices, will only be entered and stepped through those rows that are selected by the logic means for having the sequential potential applied to their stepping and entering arrays. Signalsalready entered in the rows not selected will be held in place.
  • Simplification of the electronics needed to accomplish the desired function can be achieved by taking advantage of certain commonalities in the electronics.
  • the present invention directs itself to this simplification.
  • the present invention is an improvement in plasma discharge systems wherein two or more rows of plasma charge transfer devices are used.
  • Each plasma charge transfer device generally contains at least one channel, formed as an envelope, wherein an ionizable gas is held. Multiple parallel channels are frequently used so as to allow a segment of a desired character to be formed in each channel, with all the channels in a transfer device forming the complete character.
  • a plurality of electrodes are positioned sequentially and alternately along opposite surfaces of each channel. The electrodes are arranged such that every other electrode on each of the opposing surfaces of individual channels is connected together to form first and second pairs of oppositely positioned arrays, which arrays can be called the stepping and holding arrays in accordance with their function.
  • An input electrode is provided for each channel and arranged with respect to the nearest oppositely located electrode in the first pairs of arrays such that a selected potential occurring between the input electrode and the nearest electrode will cause a plasma discharge within the channel.
  • the present improvement in the aforementioned system is the provision for pairs of channel drive means corresponding in number to the plasma charge transfer devices for sequentially applying potentials to the first pair of arrays LII of opposing electrodes of each channel to effect a shifting of the plasma discharge to the second pair of arrays of opposing electrodes.
  • One set of drive means is made common to all the second pairs of arrays of opposing electrodes and is used to sequentially apply potentials to the opposing electrodes for shifting the plasma discharge along those channels when sequential potentials are also applied to the first pair of arrays, or for holding the plasma discharge in place between opposing electrodes of the second pairs of arrays when the sequential potential is not applied to the first pairs of arrays via the associated channel drive means.
  • a logic means is provided for applying potentials sequentially to the selected channel drive means to cause the plasma discharge to shift in the selected channel while applying a holding potential to the channel drive means not selected.
  • each of the first array electrodes in the first array pairs are connected to individual channel drive means, while all of the second array electrodes in the first array pairs are connected to a common channel drive means.
  • the logic means then applies potentials sequentially to the individual and common drive means associated with a selected channel to cause shifting of the plasma discharges within the selected channels while restraining the sequencing potentials from the individual channel drive means servicing the nonselected channels.
  • FIG. 1 is a top view, partially in schematic form, of a 5 X 7 plasma charge transfer device
  • FIG. 2 is a sectioned view, partially in schematic form, taken along the section lines 22 in FIG. 1;
  • FIG. 3 illustrates wave forms useful in understanding the operation of the invention of FIGS. 1 and 2;
  • FIG. 4 is a block diagram of two of the plasma charge transfer devices of FIGS. 1 and 2 connected in accordance with the present invention in a first preferred embodiment
  • FIG. 5 is a block diagram, for use with the block diagram of FIG. 4, illustrating a second preferred embodiment of the invention.
  • a plasma display transfer device 20 is shown schematically as a 5 X 7 display maionizable gas, such as neon and nitrogen.
  • a plurality of electrodes 9 are located on the inner wall 15 of the substrate, opposite one another, in parallel alignment but laterally offset.
  • An input electrode 7 is positioned at one end of the formed channel 13.
  • a keep-alive cell is formed by a pair of electrodes 6, capacitively coupled to the ionizable gas, and connected to an alternating voltage source 21 of sufficient magnitude to ionize the gas within the keep-alive cell.
  • the ionized gas within the keep-alive cell insures a sufficient quantity of ionized particles being available at the first cell which cell is formed between the input electrode 7 and the first electrode 10.
  • Each succeeding pair of opposing electrodes forms another cell.
  • An erase electrode 18 is positioned within channel 13 at the end opposite the keep-alive cell.
  • a dielectric coating 1 1 covers all of the electrodes except the input electrode 7 and the erase electrode 18. All of the odd positioned electrodes on one side of the transfer device 20 are electrically connected together to terminal A. All the even positioned electrodes on the same side of the transfer device are connected to terminal C. In a like manner, on the opposite side, odd positioned electrodes are connected to terminal B, and even positioned electrodes are connected to terminal D.
  • the electrodes connected to terminal A in conjunction with the electrodes connected to terminal B form a first array pair.
  • the terminal A connected electrodes are positioned first sequentially in the channel and as such will hereinafter be called the first array of the first array pairs.
  • the terminal B connected electrodes are positioned second sequentially in the channel and as such will hereinafter be called the second array of the first array pairs. Similar nomenclature will apply to the terminal C and D connected electrodes being called first and second arrays respectively, of the second array pairs.
  • the seven input electrodes 7 are labeled I, through I Each cell of a channel can be used to form dots. These dots can be lit via the plasma discharge between opposing electrode pairs.
  • the ionizable gas between any opposing electrodes effectively forms a gas cell dischargeable when subjected to a suitable potential.
  • alternating the applied potential step by step (sequentially) along the length of the column the gaseous discharge is transferred successively through the length of the channel.
  • a gaseous discharge is located between two adjacent opposite electrodes a charge is formed on the positive and the negative electrodes so as to produce a wall charge (trapped charge).
  • the voltage attributed to the wall charge has a polarity opposite to the applied voltage which initiated the discharge, and upon reversal of the applied voltage, after discharge, the applied voltage and wall charge add together to cause another gaseous discharge (with current flow in opposite direction).
  • FIG. 3 there appears a timing diagram showing the voltage pulse sequence as applied to terminals A, B, C and D, input electrode 7, and the erase electrode 18.
  • the timing diagram illustrates the two major modes of operation of the plasma discharge transfer devices, namely the load and shift operation, and the hold operation.
  • the four signals 4),, to rb are phased sequentially.
  • the increments of time T, to T correspond to the load and shift operation.
  • the time increment T corresponds to the hold operation.
  • the T, time group is divided into nine subincrements a to i. In a typical case T T T T and T would be 40 microseconds each with the time between the increments 0 to a and a to b being equal to 2.5 microseconds.
  • the potential V is a potential the magnitude of which when added to a wall charge of like polarity gives rise to a potential greater than the firing potential so as to cause a discharge. In the absence of a like wall charge adding to the potential V, the potential V has a magnitude less than the firing potential.
  • the input signal V is a potential of a magnitude which ionizes the gas between the input electrode 7 and the first electrode 10 when the first electrode is at ground potential, absent a wall charge.
  • a 1" can correspond to a lit cell, with a O corresponding to an un-lit cell. If such is the case, the presence of a V, pulse on the input electrode 7 enters a binary l into the charge device channel when the first array electrode (terminal A) is switched to ground potential.
  • the input electrode 7 is switched from 0 volts to V, but no discharge takes place between the electrodes labeled 7 and 10 because the potential difference between these electrodes is not yet high enough to cause ionization due to the presence of the potential V, on electrode 10.
  • all the electrodes connected to the A terminal, which includes electrode 10 are driven to a zero potential while the input electrode potential has reached the peak value Vi.
  • the voltage differential between electrodes 7 and 10 exceeds the ionization (firing) voltage so as to cause a gaseous discharge to form therebetween.
  • This discharge is extinguished in a short period of time (0.2 to 0.5 microseconds) because the wall charge created by this discharge is trapped on the dielectric material covering the first electrode 10.
  • the input electrode 7, being directly coupled to the gas discharge, does not store a charge. Additionally, no charge is deposited on the walls adjacent any of the other electrodes since there has been no gaseous discharge between them, even though all other electrodes connected to the A terminal were simultaneously switched from the potential V to the potential 0.
  • Electrode 17 is the first electrode connected to terminal C.
  • the signals shown for the second time group labeled T are identical to the signals in group T except that the input signal now corresponds to a binary zero. For this case no discharge will occur and the associated input cells will remain un-lit. But as the sequence of signals is applied to all the electrodes connected to terminals A, B, C and D the signal indicative of a binary-one entered during the time period T, is stepped through the channel to the next sets of electrodes.
  • the device can be placed in a hold mode so that the discharges present within a channel will be held in place. This is accomplished as shown in the time period T., by holding the electrodes connected to terminals A and B at the potential V, while driving the electrodes connected to terminals C and D at the same rate.
  • the erase electrode 18 is maintained at the potential V,. Any wall charge present on the dielectric adjacent the last electrode, connected to terminal D, will remainat that location because the potential between electrode 18 and the wall charge combined-with the potential on terminal D is not sufficient to cause a discharge to terminal 18.
  • terminal 18 is switchedto ground and with the proper polarity of wall charge coupled with the potential V, being applied to terminal D a discharge will take place. With no dielectric coating on electrode 18 the charge cannot build and is erased from the channel.
  • each row comprised of seven identical channels.
  • All of the corresponding inputs in each row are electrically connected together, i.e., l of character row 1 to I, of character row 2, etc.
  • An oscillator 40 provides a basic timing frequency which signal is received by a timing circuit 41.
  • the timing circuit transforms the basic frequency into four sequential (phased) signals, the order sequence of which is denoted by the subscripts A to D.
  • the C and D array of electrodes are continuously connected to a driver means 39 containing a pair of drivers, one connected between each input and output line.
  • the output of the driver means is a pair of signals corresponding to the two adjacent phased signals from the timing circuit 41 in which two adjacent phased signals are denoted by (b and During the operatign of th e system, the driver 39 applies the two signals (b and 4),, to thecorresponding C and D arrays, as shown in FIG. 4, to effect .a sequencing potential whereby if a wall charge is present on one of the electrodes adjacent the electrode to which the potential is being applied a plasma discharge will occur.
  • a row select decoder 38 receives as its input a row select address signal.
  • the address signal can be applied to the row select decoder by means of a keypunch, toggle switch, punched card or other well known means.
  • the outputs of the row select decoder are fed to an ANDing means 43. Only two outputs are shown coming from the row select decoder because only two rows of devices 20 and 30 are used. If more rows are used, then selection signals from the decoder 38 have to also increase correspondingly in number.
  • the ANDing function block 43 also receives the two adjacent phased signals 4),, and 4: When coincidence occurs between these two phase signals and the row select signals the two signals are fed as inputs to either the channel drive 44 and/or the channel driver 45, depending on whether one or both rows have been selected.
  • the channel driven circuits are simple pairs of gating circuits which are connected, one each, between each input line and output line of a driver.
  • the gating circuits (driver) apply the positive potential V, to the A and B arrays electrodes and sequentially switch to applying a zero potential in accordance with the levels of signals (b, and 42 respectively.
  • channel driver 44 As channel driver 44 is selected, the character row 20 will be energized on the A and B arrays such that input information appearing on the input terminals I through I will be input into the respective row channels and stepped through the channel, for so long as the A and B arrays are energized.
  • the character row 30 receiving only the C and D array electrode signals will not load or shift any information contained on its input electrodes I to I, due to the absence of the sequencing signals on its A and B array electrodes. If the row select decoder had provided an output signal such that channel drivers 44 and 45 were both activated, then identical messages would be fed at the inputs and stepped simultaneously through the channels of each of the character rows.
  • the character signals that are input to the selected rows are formed using a character generator 48. Selection of the particular character is accomplished by first selecting the character through a keyboard convertor 50, which provides an output signal in parallel format along seven output lines to a buffer 49. The bufier operates to control, time-wise, the entrance of the keyboard data into the character generator. The output lines from the character generator drive seven corresponding input drivers 51 between the potential V, and ground, which potentials are applied directly to the input electrodes I through I
  • a mode select control means 42 provides a synchronization signal to the row select decoder 38 and the column enable address 47, to synchronize the input signals with the sequence phase array signals 4), through da
  • a character consists of a 5 X 7 dot matrix.
  • Each column of the dot matrix is stored in the character generator 48, which may be a read only memory.
  • the character generator 48 When a key is depressed on the keyboard, data appears at the output of the character generator in column by column form. The occurrence of a column of data at the generator output is controlled by the column enable address circuit 47.
  • FIG. 5 A second embodiment of the invention is disclosed in FIG. 5. This embodiment is identical to the embodiment of FIG. 4 except for the commonality of the terminal B array electrode driver 52.
  • the B, C, and D arrays in each of the character rows are driven from' common drivers. Independent channel drivers are provided for the A arrays of each row. Data present on the input electrodes of a particular row will not be entered unless the potential on the A array is applied as per FIG. 5.
  • the row select decoder 38 provides a selection signal on one or both of its output lines which signals or signal is received by the ANDing function means 53, ANDing circuit also receives the shift signal (in.
  • each of the transfer devices is comprised in part of an envelope defining at least one channel containing an ionizable medium, a plurality of electrodes positioned sequentially and alternately along opposite surfaces of said channel, said electrodes being arranged such that every other electrode on each of the opposing surfaces is commonly connected together to form first and second pairs of oppositely positioned arrays, an input electrode means within each channel arranged with respect to the nearest oppositely located electrode in said first pair of arrays such that a selected potential occurring between said input electrode and the nearest oppositely located electrode will cause a plasma discharge to exist in the channel wherein the improvement comprises:
  • channel drive means corresponding in number to said plasma charge transfer devices for sequentially applying potentials to said first pairs of arrays of opposing electrodes for shifting the plasma discharge to said second pairs of arrays of opposing electrodes;
  • logic means for applying potentials sequentially to selected channel drive means so as to cause the plasma discharges within the channel serviced by the selected channel drive means to shift while holding all other plasma discharges within the nonselected channels.
  • a four phase signal source for providing two adjacent phased signals to said drive means; a selecting means for providing signals indicative of the selection of a plasma charge transfer device;
  • input data means for providing signals indicative of a selected character
  • character generator means for transforming said provided signals into a preset sequence of signals corresponding to the selected character and for feeding said preset sequence of signals to said input electrode means so as to cause associated discharges to occur in said plasma charge transfer devices with the positioning of the discharges being proportional to the configuration of the character selected.
  • each of the transfer devices is comprised in part of an envelope defining at least one channel containing an ionizable medium, a plurality of electrodes positioned sequentially and alternately along opposite surfaces of said channel, said electrodes being arranged such that every other electrode on each of the opposing surfaces is commonly connected together to form first and second pairs of oppositely positioned arrays, an input electrode means within each channel arranged with respect to the nearest oppositely located electrode in said first pair of arrays such that a selected potential occurring between said input electrode and the nearest oppositely located electrode will cause a plasma discharge to exist in the channel, wherein the improvement comprises: i
  • a potential source the potential level of which is sufficient to cause a plasma discharge between electrodes when a static charge of correct polarity exists on one of the electrodes;
  • first and second channel driver means corresponding in number to the number of plasma charge transfer devices, with the first driver means connected to the electrodes of the first pair of arrays on one surface of said channels and the second driver means connected to the electrodes of the first pairs of arrays on the opposite surface of said channels, said first and second channel driver means operatively connected to said potential source for controllably connecting associated electrodes to said potential source;
  • first and second drive means a first and second drive means, with the first drive means connected to all electrodes of the second pairs of arrays positioned on one surface of said channels and the second drive means connected to all electrodes of the second pairs of arrays positioned on the opposite surface of said channels, said first and second drive means sequentially connected to said potential source for connecting asso ciated electrodes sequentially to said potential source;
  • logic means for selecting and sequentially controlling said first and second channel drive means so as to cause the plasma discharges within the channel serviced by the selected channel driver means to shift while holding all other plasma discharges within the nonselected channels.
  • a four phase signal source for providing two adjacent phased signals to said first and second drive means respectively;
  • a selecting means for providing signals indicative of the selection of a plasma charge transfer device
  • said logic means further comprises: input data means for providing signals indicative of a selected character;
  • character generator means for transforming said provided signals into a preset sequence of signals corresponding to the selected character and for feeding said preset sequence of signals to said input electrode means so as to cause associated discharges to occur in said plasma charge transfer devices with the positioning of the discharges being proportional to the configuration of the character selected.
  • each of the transfer devices is comprised in part of an envelope defining at least one channel containing an ionizable medium, a plurality of electrodes positioned sequentially and alternately along opposite surfaces of said channel, said electrodes being arranged such that every other electrode on each of the opposing surfaces is commonly connected together to form first and second pairs of oppositely positioned arrays, an input electrode means within each channel arranged with respect to the nearest oppositely located electrode in said first pair of oppositely positioned arrays such that a selected potential occurring between said input electrode and the nearest oppositely located electrode will cause a plasma discharge to exist in the channel
  • the improvement comprises:
  • a signal source for providing first, second, third and fourth sequentially phased signals, means for applying said third and fourth phased signals to said second pairs of oppositely positioned arrays of opposing electrodes to effect a sequencing potential between said electrodes;
  • a plurality of drive means corresponding in number to the number of plasma charge transfer devices, for controllably applying said first phased signal to the array of electrodes in said first pairs of oppositely positioned arrays of electrodes which are located opposite said input electrode means upon receipt of a selection signal;
  • logic means for providing a selection signal to particular drive means so as to cause the channel associated with said drive means to enter and shift discharges within said plasma charge transfer devices.
  • said logic means further comprises: input data means for providing signals indicative of a selected character;
  • character generator means for transforming said provided signals into a preset sequence of signals corresponding to the selected character and for feeding said preset sequence of signals to said input electrode means so as to cause associated discharges to occur in said plasma charge transfer devices with the positioning of the discharges being proportional to the configuration of the character selected.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Gas-Filled Discharge Tubes (AREA)
US00294006A 1972-10-02 1972-10-02 Multi-line plasma shift register display Expired - Lifetime US3775764A (en)

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JP (1) JPS4973932A (enrdf_load_stackoverflow)
CA (1) CA975074A (enrdf_load_stackoverflow)
DE (1) DE2349399A1 (enrdf_load_stackoverflow)
FR (1) FR2201534B2 (enrdf_load_stackoverflow)
GB (1) GB1407171A (enrdf_load_stackoverflow)

Cited By (20)

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US3878430A (en) * 1972-06-22 1975-04-15 Fujitsu Ltd Self shift display panel driving system
US3911422A (en) * 1974-03-04 1975-10-07 Ibm Gas panel with shifting arrangement with a display having increased light intensity
US3976993A (en) * 1973-07-16 1976-08-24 Fujitsu Ltd. Gas discharge panel self shift drive system and method of driving
FR2310605A1 (fr) * 1975-05-05 1976-12-03 Sigma Instruments Inc Dispositif pour l'affichage de valeurs analogiques
DE2713361A1 (de) * 1976-03-29 1977-10-13 Fujitsu Ltd Verfahren zum verschieben eines entladungspunktes
DE2731008A1 (de) * 1976-07-09 1978-01-12 Fujitsu Ltd Gasentladungs-anzeigefeld
US4080597A (en) * 1976-07-16 1978-03-21 Modern Controls, Inc. Gas display panel having planar conductors
DE2741750A1 (de) * 1976-09-16 1978-03-23 Fujitsu Ltd Selbstverschiebungs-gasentladungspaneel
US4087809A (en) * 1976-07-12 1978-05-02 Sperry Rand Corporation Magneto-optic bubble domain histograph
FR2369642A1 (fr) * 1976-10-29 1978-05-26 Smiths Industries Ltd Appareil d'affichage de la valeur d'un parametre par commande selective de regions differentes
US4104626A (en) * 1977-02-09 1978-08-01 Bell Telephone Laboratories, Incorporated Arrangement utilizing the mechanism of charge spreading to provide an ac plasma panel with shifting capability
US4233544A (en) * 1979-05-09 1980-11-11 Ncr Corporation Input-keep alive arrangement for plasma charge transfer device
US4286265A (en) * 1977-11-08 1981-08-25 Burroughs Corporation Bar graph display panel and system for displaying analog values therein
WO1982000220A1 (en) * 1980-06-30 1982-01-21 Ncr Co Electrodes for gaseous discharge devices
US4333040A (en) * 1978-06-19 1982-06-01 Hitachi, Ltd. Gas discharge display device
US4336535A (en) * 1980-04-16 1982-06-22 Ncr Corporation Cursor for plasma shift register display
US4359663A (en) * 1977-03-11 1982-11-16 Fujitsu Limited Gas discharge panel having plurality of shift electrodes
EP0039679A4 (en) * 1979-08-23 1984-03-27 Ncr Corp MULTI - LINE LOAD TRANSFER PANEL CONTROL SYSTEM.
US4454449A (en) * 1980-06-30 1984-06-12 Ncr Corporation Protected electrodes for plasma panels
US4566006A (en) * 1982-05-17 1986-01-21 Hitachi, Ltd. Gas discharge display apparatus

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US3681754A (en) * 1969-07-28 1972-08-01 Thomas L Baasch Self luminous shift register information display
US3701924A (en) * 1970-08-17 1972-10-31 Burroughs Corp System for operating a display panel

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US3582979A (en) * 1969-07-07 1971-06-01 Burroughs Corp Gaseous discharge display device with interconnecting structure for the electrodes
US3681754A (en) * 1969-07-28 1972-08-01 Thomas L Baasch Self luminous shift register information display
US3631530A (en) * 1969-12-01 1971-12-28 Burroughs Corp Compact display panel
US3654508A (en) * 1970-03-19 1972-04-04 Burroughs Corp Display panel having a plurality of display registers
US3626245A (en) * 1970-04-08 1971-12-07 Burroughs Corp Display panel having a plurality of display registers
US3701924A (en) * 1970-08-17 1972-10-31 Burroughs Corp System for operating a display panel

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878430A (en) * 1972-06-22 1975-04-15 Fujitsu Ltd Self shift display panel driving system
US3976993A (en) * 1973-07-16 1976-08-24 Fujitsu Ltd. Gas discharge panel self shift drive system and method of driving
US3911422A (en) * 1974-03-04 1975-10-07 Ibm Gas panel with shifting arrangement with a display having increased light intensity
US4163971A (en) * 1975-05-05 1979-08-07 Sigma Instruments Inc. Systems for displaying analog values
FR2310605A1 (fr) * 1975-05-05 1976-12-03 Sigma Instruments Inc Dispositif pour l'affichage de valeurs analogiques
DE2713361A1 (de) * 1976-03-29 1977-10-13 Fujitsu Ltd Verfahren zum verschieben eines entladungspunktes
DE2731008A1 (de) * 1976-07-09 1978-01-12 Fujitsu Ltd Gasentladungs-anzeigefeld
US4087809A (en) * 1976-07-12 1978-05-02 Sperry Rand Corporation Magneto-optic bubble domain histograph
US4080597A (en) * 1976-07-16 1978-03-21 Modern Controls, Inc. Gas display panel having planar conductors
DE2741750A1 (de) * 1976-09-16 1978-03-23 Fujitsu Ltd Selbstverschiebungs-gasentladungspaneel
FR2369642A1 (fr) * 1976-10-29 1978-05-26 Smiths Industries Ltd Appareil d'affichage de la valeur d'un parametre par commande selective de regions differentes
US4104626A (en) * 1977-02-09 1978-08-01 Bell Telephone Laboratories, Incorporated Arrangement utilizing the mechanism of charge spreading to provide an ac plasma panel with shifting capability
US4359663A (en) * 1977-03-11 1982-11-16 Fujitsu Limited Gas discharge panel having plurality of shift electrodes
US4286265A (en) * 1977-11-08 1981-08-25 Burroughs Corporation Bar graph display panel and system for displaying analog values therein
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Also Published As

Publication number Publication date
CA975074A (en) 1975-09-23
JPS4973932A (enrdf_load_stackoverflow) 1974-07-17
DE2349399A1 (de) 1974-04-11
FR2201534A2 (enrdf_load_stackoverflow) 1974-04-26
FR2201534B2 (enrdf_load_stackoverflow) 1978-11-03
GB1407171A (en) 1975-09-24

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