US3909665A - Driving system for a gas discharge panel - Google Patents

Driving system for a gas discharge panel Download PDF

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US3909665A
US3909665A US344095A US34409573A US3909665A US 3909665 A US3909665 A US 3909665A US 344095 A US344095 A US 344095A US 34409573 A US34409573 A US 34409573A US 3909665 A US3909665 A US 3909665A
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electrodes
shift
layer
display
electrode
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Shizuo Andoh
Toshinori Urade
Tadatsugu Hirose
Yasunari Shirouchi
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Fujitsu Ltd
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Fujitsu Ltd
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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
    • 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
    • G09G3/291—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 controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
    • G09G3/292—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 controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for reset discharge, priming discharge or erase discharge occurring in a phase other than addressing
    • G09G3/2922—Details of erasing
    • 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
    • G09G3/291—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 controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
    • G09G3/293—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 controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for address discharge
    • 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
    • G09G3/291—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 controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
    • G09G3/294—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 controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for lighting or sustain discharge
    • 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
    • G09G3/296—Driving circuits for producing the waveforms applied to the driving electrodes
    • 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
    • G09G3/297—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 opposed discharge type panels

Definitions

  • the priming fire is shifted to a position where the display is to be erased and a sustain voltage impressed on the display layer is cut off to neutralize wall charges, and then the sustain voltage is impressed again to the display layer, thereby to erase the display at the position of the priming fire.
  • This invention relates to a gas discharge panel driving system, and more particularly to a gas discharge panel driving system in which a display provided on the panel is erased with a priming fire.
  • electrodes 2 are provided on a base plate 1 as of a glass; a dielectric layer 3 as of low-melting-point glass is coated thereon; electrodes 7 are provided on a base plate 6 similar to plate 1; a dielectric layer 8 is coated thereon; electrodes 5 covered with dielectric layers 4 are disposed intermediate between the two base plates disposed opposite to each other; the peripheral edges of the base plates 1 and 6 are sealed together; and a discharge gas such as neon or the like is sealed in the spaces defined between the electrode assembly 5 and the opposing base plates.
  • the electrodes 5 are each disposed apart from the adjacent ones or holes, and grooves are formed in the electrode assembly so as to permit intercommunication of the upper and lower discharge gas spaces.
  • the electrodes 2 are periodically connected to buses A, B and C. For example, if a voltage higher than a discharge voltage is impressed between the electrode s connected to a bus S and the electrode aI connected to the bus A, a discharge is produced between the electrodes s and al. If this discharge voltage is taken as V if a discharge voltage due to the fire priming effect wherein electrons, ions and metastable atoms produced by the discharge are scattered to produce a discharge initial current to lower the discharge voltage is taken as V and if a voltage V to be impressed between the buses A and B is selected such that V V V V a discharge is caused between the electrodes al and bl.
  • the priitiingfitej is shifted by surface discharge'and a'display'is' produced by a discharge between "the opposing electrodes but it is also possible to achieve shifting of the priming fire by the discharge betweenthe opposing electrodes and provide a display by surface discharge.
  • This invention has for' its object to achieve a display e r asing'operation with a primingfire in such a gas discharge panel as described above.
  • the driving system of this invention is adapted for use with a gas discharge panel having 'a shift layer and a display layer and includes is circuitry for providing a priming fire that is shifted to an erasing position; for impressing a sustain voltage to the display layer and for interrupting the sustain voltage for an erase interval whereby wall charges at the erasing position are neutralized by the priming fire; and then, for applying the sustain voltage again to the display layer.
  • FIG. 1 is a cross-sectional view of the principal part of a gas discharge panel having a shift layer and a display layer; 7
  • FIG. 2 is a waveform diagram for explaining the operation of one example of this invention.
  • FIG. 3 is a cross-sectional view of the principal part of another example of the gas discharge panel of this invention having the shift layer and the display layer;
  • FIGS. 4 and 5 are circuit diagrams showing drive circuits for the examples of this invention, respectively.
  • FIG. 2 shows examples of waveforms for explaining the operation'of one example of this invention.
  • Reference characters VA, VB and VC designate voltages to be applied to the buses A, B and C in FIG. 1.
  • a priming fire is shifted by surface discharge.
  • Reference character VXY indicates a sustain voltage for impression between the electrodes 5 and 7.
  • Small circles identify write voltages, which can be superimposed on the sustain voltage. Since the priming fire is shifted by the electrodes 2 of a first layer 1, this layer will hereinafter be referred to as a shift layer, and since a display is produced by the electrodes 5 and 7 of second and third layers 4 and 8, these layers will hereinafter be referred to as a display layer.
  • the display In the case of a display being provided on the display layer, charges produced by the discharge are stored in the dielectric layer to provide wall charges to thereby store and display written information.
  • the display can be erased by neutralizing the wall charges.
  • the erasing can be achieved, for example, by cutting off the sustain voltage for a little while but this requires an appreciable amount of time and introduces the possibility of erasing the display desired to be retained.
  • the priming fire is shifted to a position where the display is desired to be erased and then the sustain voltage is cut off. Namely, the period TE indicates this operation.
  • the wall charges are .neutrali'ized by the priming fire and, thereafter, 'even if the sustain voltage is impressed, no discharge is produced at the position where the display has been erased. In the other area where the priming fire does not lie, neutralization of the wall charges is not caused by the temporary interruption of the sustain voltage, so that the display is not erased.
  • the erasing time is. remarkedly shortened.
  • a current of extremely increased level flows substantially in proportion to the initial current.
  • the shift layer shifts the priming fire by surface discharge and the display layer effects memorizing and displaying by a discharge between the opposing electrodes, but it is also possible to shift the priming fire by the discharge between the opposing electrodes and effect memorizing and displaying by the surface discharge. Further, it is also possible to adapt both of the shift layer and the display layer for the surface discharge or the discharge between the opposing electrodes.
  • the buses of the shift layer may be operated in a three-phase mode or more and can be selected fouror fivephase as desired.
  • partial retouching of the display can be readily achieved by rewriting after erasing one part of the written content. Further, negative writing can also be effected by partial erasing as described above while producing a discharge in each of the discharge cells.
  • FIG. 3 shows in section the principal part of another example of this invention, in which the electrodes 5 of the second layer in FIG. 1 are left out.
  • electrodes 12 formed on a base plate 11 and covered with a dielectric layer 13 are sequentially connected to the buses A, B and C to make up a shift layer and electrodes 15 coated with a dielectric layer 16 are disposed on a base plate 14.
  • the priming fire is shifted by the surface discharge, for example, by sequential impression of a voltage to successive pairs of the buses A, B and C.
  • a display is provided by a discharge caused between the electrodes 12 and 15.
  • the sustain voltage is impressed between the electrodes 12 andl5.
  • the electrodes 15 can instead be disposed to intersect the electrodes l2 at approximately right angles thereto, and the write voltage is selectively applied to the electrodes 15 corresponding to the shifted position of the priming fire.
  • the discharge is repeated to provide the display each time the polarity of the sustain voltage is reversed by the wall charge, so that also in the case of erasing the disto the Y electrodes 21.
  • Transister Q6 whose collecter play, the priming fire is shifted to a position where it is desired to erase the display and the sustain'voltage is interrupted as described previously. Since the wall charge is thereby neutralized, when the sustain voltage is impressed again, no discharge is caused because the wall charge has been neutralized. Namely, erasing is accomplished.
  • writing is achieved by impressing a write voltage in accordance with the timing of shifting of a priming fire, and erasing is effectedby neutralizing the wall charge at the erasing position by means of the priming fire, as performed in a gas discharge panel having a shift layer and a display layer,
  • this invention does not necessitate the impression of an erasing voltage, and hence is free from a half selection trouble, and partial retouching of a display and negative writing can easily be accomplished;
  • FIG. 4 illustrates one example of a drive circuit for:
  • the shift layer has a keep alive electrode k, a new line reset electrode nr, an X shift electrode group 20 and a Y electrode group 21; while, the display, layer has a Y electrode group 22 and an X electrode group 23.
  • each set of seven electrodes of the Y electrode groups 21 and 22 forms one line.
  • An input signal In is applied to a received signal separating circuit 24 to separate the following signals: an X address shift command xa, a new line signal nls, a write command w, an erase command 2, data d, a synchronizing signal $5 and a line address la, from one another.
  • the synchronizing signal ss isapplied to a clock generator 28 to provide a clock pulse a, which is fed to a 1r phase shifter 29 to produce a clock pulse b shifted from the clock a by 11' phase.
  • the X address shift command xa is supplied through a gate G1 to a ring counter 25.
  • Transistors Qa, Oh and Qc are controlled by outputs from gates G4, G5 and G6 Transister OS is turned on by the clock pulse b to impress the voltage V which is supplied to its collecter,
  • the transistors Qa, Qb and Qc thereby are sequentially enabled to apply a voltage V as a shift voltage to buses A, B and C. Further, a voltage V lower than that V is impressed to the buses through a transistor Q1 since this voltage V serves as an erasing voltage, the speed of erasing by the shift voltage can be increased greatly.
  • the voltage V is applied through a transistor O2 to the keep alive electrode k to produce a priming fire at all times.
  • received signal separating circuit 24 has provided therein a counter for memorizing the position of the priming fire shifted by the X address shift command xa.
  • the gate G2 Upon generation of the new line signalnls, the gate G2 is closed by a signal applied through an inverter IVl, so that the gates G4, G5 and G6 are also closed to turn off all of the transistors Qa, Oh and Qc thereby to erase the entirety of the corresponding line of the display irrespective of the position of the priming fire.
  • a transistor Q3 is actuated by the output from the gate G3 to impress the voltage V to the new line reset electrode nr to produce a priming fire. Namely, the priming tire is generated by the new line signal nls at the start point for the line.
  • a transistor Q4 is operated by the clock pulse b and its emitter electrode is grounded to discharge charges stored therein. Transistors Q5 and Q6 are connected to impress the voltage V to the Y electrodes 21.
  • the clock pulse a is applied to a transistor Q9 through a gate G9, whereby the sustain voltage V is applied to the Y electrodes 22 through corresponding diodes 31 and the Y electrodes 22 are grounded through a transistor Q19 which is supplied with the clock pulse b.
  • the X electrodes 23 are supplied with the sustain voltage V and grounded through transistors Q21, Q20 which are supplied with the clock pulses a and b respectively.
  • the.sustain voltage V is impressed to cells formed at the intersecting points of the X and Y electrodes 23 and 22.
  • a one-shot multivibrator 26 Upon generation of the write command w, a one-shot multivibrator 26 operates to open the gate G7 with its output to apply the clock pulse a to a transistor Q7, and transistors Q10 to Q16 are enabled selectively by the data d to impress the write voltage V to the corresponding Y electrodes 22 through related resistors 30.
  • the line address la prevents the application of the write voltage V thereto by controlling the operation of transistors Q17 and Q18 through inverters 1V3 and [V4 and gates G11 and G12.
  • an input waiting command wt is supplied through a gate G10 and inverter 1V2 to close, or disable, the gates G1 and G9.
  • a one-shot multivibrator 27 Upon generation of the erase command 2, a one-shot multivibrator 27 operates to open the gate G8 to turn on the transistor Q8 and supply an auxiliary erasing voltage V to the collectors of transistors Q10 to Q16.
  • the erase command 6 is produced when the shifted position of the priming fire as memorized by the counter of the received signal separating circuit 24 coincides with the specified position to be erased.
  • the gate G1 is closed to stop shifting of the priming fire in the shift layer and the gate G9 is closed to stop impression of the sustain voltage V As a result of this, the display on the display layer is erased by the priming fire on the shift layer.
  • the auxiliary erasing voltage V is impressed to ensure erasing.
  • selective erasing can also be achieved by selective impression of the auxiliary erasing voltage and by selecting the period of stopping the impression of the sustain voltage V s in accordance with the data d.
  • FIG. 5 shows another example of the drive circuit, in which the same reference numerals and characters as those in FIG. 4 indicate the same elements.
  • the line in which the priming fire is shifted, is selected by the line address signals la.
  • a gate G13 is opened by a line address lal, so that a transistor Qnl is turned on to apply a priming fire to a new line reset electrode nrl thus enabling writing and erasing in that line.
  • a gate 14 is opened by a line address la2, a transistor Qn2 is turned on to apply a priming fire to a new line reset electrode nr2.
  • the priming fire shifting line is selected, so that no resistor-diode matrix circuit is required and the circuitry on the side of the display layer is simplified.
  • the gas discharge panel has been described to have the X and Y electrodes 20 and 21 in the shift layer and X and Y electrodes 23 and 22 in the display layer, but the X electrodes 23 can be deleted by causing the shift layer to effect the shift operation by the discharge between opposing electrodes as described previously and by causing the display layer to effect the display operation by the surface discharge with the Y electrodes 22 being used in pairs.
  • An energizing system for a gas discharge display including a first base plate and a first set of electrodes disposed thereon with a dielectric'layer disposed over said first set of electrodes, and a second base plate and a second set of electrodes disposed thereon in opposite relationship to said first set of electrodes and defining a region for confining a discharge gas therebetween, said energizing system comprising:
  • priming means for applying a discharge voltage to a selected one of successive electrode pairs of said second set to establish a priming fire therebetween;
  • shift means for sequentially applying a shift voltage to remaining successive such pairs of electrodes of said second set thereby to shift said priming fire thereto;
  • c. write means for applying a write signal to a selected electrode of said first set to establish a discharge at an intersection of said selected electrode and an electrode pair of said second set on which the priming fire is shifted whereby a wall charge is stored at a corresponding position upon said dielectric layer;
  • sustain means for applying a sustain voltage to said first set of electrodes
  • erase means having an address means for identifying a position defined by said first set of electrodes to be erased and for causing said shift means to shift a priming fire to an electrode pair of said second set corresponding to the said address identified position of the first set of electrodes, said erase means further including means operating in conjunction with.'sa"id address means for terminating the application of the sustain voltage by said sustain means to said first set of electrodes for a predetermined period whereby the shifted priming fire neutralizes the will charge stored upon said dielectric layer at said address identified position thereof, corresponding to the shifted position of the priming fire.
  • said erasing means includes an auxiliary erasing means for applying an auxiliary erasing voltage for a selected period to said first set of electrodes during said predetermined period thereby to increase the rate of neutralization of the wall charges.
  • a discharge display panel system comprising:
  • a display panel comprising a shift layer having first and second sets of electrodes disposed in spaced relationship at substantially right angles to each other to define intersections, a display layer with third and fourth sets of electrodes disposed in spaced relationship at substantially right angles to each other to define intersections respectively corresponding to the intersections of said shift layer, said display and said shift layers being disposed in opposed relation for receiving a discharge gas therebetween, and a dielectric storage layer associated with said display layer;
  • priming means for applying a discharge voltage to selected electrodes of said first set thereby to establish a priming fire therebetween;
  • shift means for sequentially selecting electrodes of said first set and for applying a shift voltage between the sequentially selected electrodes of said first set and the electrodes of said second set thereby to shift the priming fire sequentially across said shift layer;
  • sustain means for applying a sustain voltage between the electrodes of said third and fourth sets
  • write means for selecting one of said third set of electrodes and for applying a write signal between the said selected one of said third set of electrodes and the electrodes of said fourth set in timed relation to the application of the shift voltage between the corresponding selected electrode of said first set and the electrodes of said second set to effect a discharge at the thus defined intersection, whereby a wall charge is stored upon said dielectric layer at a corresponding position;
  • erase means for terminating for a predetermined interval, the application of the sustain voltage by said sustain means in timed relation to the selection and application of the shift voltage to an electrode of said firstset corresponding to an intersection of said display layer, whereby the shifted priming fire neutralizes the wall charge stored at the said corresponding position upon said dielectric layer.
  • line address means for controlling the application of write signals selectively to said sub-groups of electrodes of said third set.
  • control means responsive to a new line signal and to a line address signal for applying a discharge voltage to said new line reset electrode and said desired sub-group of electrodes to produce a priming fire to be shifted therebetween.
  • a driving system for a gas discharge display having a shift layer and a display layer disposed to receive a discharge gas therebetween, each layer including respective pluralities of electrodes defining positions in the respective layers, with a position in one layer corresponding at least in part to, a position in the. other layer, and the plurality of electrodes of the display layer being covered with a dielectric layer, said driving system comprising:
  • means for establishing a priming fire in said shift layer means for sequentially applying a shift voltage to successive electrodes of said shift layer to shift the priming fire to a position thereof corresponding to the identified electrode of said display layer, and means responsive to shifting of said priming fire to said position corresponding to the identified electrode of said display layer for interrupting application of said sustain voltage by said sustain voltage applying means to said electrodes of said display layer for a predetermined time, the sustain voltage being reapplied by said sustain voltage applying means after the said predetermined time.
  • a method of driving a gas discharge display having a first base plate and a first set of electrodes disposed thereon with a dielectric layer disposed over said first set of electrodes, and a second base plate and a second set of electrodes disposed thereon in opposite relationship to said first set of electrodes and defining a region for confining a discharge gas therebetween,
  • a sustain voltage is normally applied to i said set of electrodes and information is written onto said display by applying a write signal to a selected J electrode of said first set to establish a discharge at said selected electrode and thereby to produce and store a wall charge at a corresponding position upon said dielectric layer, the method comprising the steps of:
  • step of applying a write signal comprises applying a write signal simultaneously to each electrode of said first set thereby to effect negative writing of information.

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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)
US344095A 1972-03-24 1973-03-23 Driving system for a gas discharge panel Expired - Lifetime US3909665A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2962872A JPS543328B2 (enrdf_load_stackoverflow) 1972-03-24 1972-03-24

Publications (1)

Publication Number Publication Date
US3909665A true US3909665A (en) 1975-09-30

Family

ID=12281339

Family Applications (1)

Application Number Title Priority Date Filing Date
US344095A Expired - Lifetime US3909665A (en) 1972-03-24 1973-03-23 Driving system for a gas discharge panel

Country Status (6)

Country Link
US (1) US3909665A (enrdf_load_stackoverflow)
JP (1) JPS543328B2 (enrdf_load_stackoverflow)
DE (1) DE2313789C3 (enrdf_load_stackoverflow)
FR (1) FR2178627A5 (enrdf_load_stackoverflow)
GB (1) GB1428193A (enrdf_load_stackoverflow)
NL (1) NL177865C (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958233A (en) * 1974-07-31 1976-05-18 Owens-Illinois, Inc. Multiphase data shift device
US4027195A (en) * 1974-08-23 1977-05-31 Nippon Electric Company Ltd. Voltage switching device comprising a gas discharge panel
US4028584A (en) * 1974-10-18 1977-06-07 Nippon Electric Company, Ltd. Driving circuit for selecting control cells of a gas discharge panel by transistors through diodes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5830038A (ja) * 1981-08-17 1983-02-22 Sony Corp 放電表示装置
CN113284471B (zh) * 2021-06-28 2022-09-02 山东蓝贝思特教装集团股份有限公司 基于光照擦除的液晶书写装置局部擦除控制方法及系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739371A (en) * 1969-10-31 1973-06-12 Philips Corp Cross addressed bistable display panel with selectable bilevel sustaining bias circuit
US3761897A (en) * 1972-06-23 1973-09-25 Ibm Gas cell memory system with electrical readout
US3765011A (en) * 1971-06-10 1973-10-09 Zenith Radio Corp Flat panel image display

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE755591Q (fr) * 1967-11-24 1971-02-15 Owens Illinois Inc Dispositif de memorisation et de reproduction a decharges gazeuses et son mode de fonctionnement
BE754223A (fr) * 1969-08-04 1970-12-31 Ncr Co Dispositif d'affichage electroluminescent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739371A (en) * 1969-10-31 1973-06-12 Philips Corp Cross addressed bistable display panel with selectable bilevel sustaining bias circuit
US3765011A (en) * 1971-06-10 1973-10-09 Zenith Radio Corp Flat panel image display
US3761897A (en) * 1972-06-23 1973-09-25 Ibm Gas cell memory system with electrical readout

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958233A (en) * 1974-07-31 1976-05-18 Owens-Illinois, Inc. Multiphase data shift device
US4027195A (en) * 1974-08-23 1977-05-31 Nippon Electric Company Ltd. Voltage switching device comprising a gas discharge panel
US4028584A (en) * 1974-10-18 1977-06-07 Nippon Electric Company, Ltd. Driving circuit for selecting control cells of a gas discharge panel by transistors through diodes

Also Published As

Publication number Publication date
DE2313789A1 (de) 1973-10-04
FR2178627A5 (enrdf_load_stackoverflow) 1973-11-09
NL7304135A (enrdf_load_stackoverflow) 1973-09-26
JPS4896252A (enrdf_load_stackoverflow) 1973-12-08
NL177865C (nl) 1985-12-02
JPS543328B2 (enrdf_load_stackoverflow) 1979-02-21
DE2313789B2 (de) 1981-07-09
NL177865B (nl) 1985-07-01
DE2313789C3 (de) 1982-04-08
GB1428193A (en) 1976-03-17

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