GB1374614A - Driver circuits - Google Patents

Driver circuits

Info

Publication number
GB1374614A
GB1374614A GB5821571A GB5821571A GB1374614A GB 1374614 A GB1374614 A GB 1374614A GB 5821571 A GB5821571 A GB 5821571A GB 5821571 A GB5821571 A GB 5821571A GB 1374614 A GB1374614 A GB 1374614A
Authority
GB
United Kingdom
Prior art keywords
diode
conductor
pulses
write
positive
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
GB5821571A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1374614A publication Critical patent/GB1374614A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/12—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays
    • H04N3/125—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays using gas discharges, e.g. plasma
    • 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

Landscapes

  • 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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

1374614 Matrix displays WESTERN ELECTRIC CO Inc 15 Dec 1971 [16 Dec 1970] 58215/71 Headings G5C and G4H A driver circuit is connected to each conductor of a gas discharge panel with crossed conductor arrays the circuit comprising a charge storage diode 301 for applying alternating polarity signals and a semi-conductor device 302 for selectively addressing the conductor. Sustain pulses are applied periodically to all conductors. The positive portion of the signal is passed via diode 301 and charges it such that it remains conducting during the negative portion and until the charge is dissipated, when it reverts to a high impedance reverse biased state. This allows write or erase pulses to be applied which are isolated by the diode from other conductors. The time that the diode passes the negative signal is preferably the same as the duration of the positive signal. To keep the times the same two resistances and a diode may be used instead of load resistor 303. The write and erase pulses are applied between sustain pulses by circuits 81, 82 in response to TV or other display input signals. These pulses render selected transistors 302 conductive to pass pulses from sources 305. In another embodiment each driver circuit comprises a charge storage diode 312 and diodes 310, 311. The drivers are arranged in a matrix connected between conductor arrays RX1,2 ... RY1,2 ... Each diode 310, 311 is connected to a positive or negative sustaining pulse source respectively. All diodes 312 are normally positively biased and connected to a write, erase pulse generator 500. A write or erase pulse is applied by first energizing selected row and column conductors RX, RY and passing current through diode 312, then applying a positive pulse to all the drivers. This passes only to the conductor of the selected driver, which has been rendered conductive by the charge stored.
GB5821571A 1970-12-16 1971-12-15 Driver circuits Expired GB1374614A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9875470A 1970-12-16 1970-12-16

Publications (1)

Publication Number Publication Date
GB1374614A true GB1374614A (en) 1974-11-20

Family

ID=22270742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5821571A Expired GB1374614A (en) 1970-12-16 1971-12-15 Driver circuits

Country Status (9)

Country Link
US (1) US3689912A (en)
BE (1) BE776781A (en)
CA (1) CA957043A (en)
DE (1) DE2161978A1 (en)
FR (1) FR2118646A5 (en)
GB (1) GB1374614A (en)
IT (1) IT943270B (en)
NL (1) NL7117195A (en)
SE (1) SE378149B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754230A (en) * 1970-12-21 1973-08-21 Raytheon Co Plasma display system
JPS542116B1 (en) * 1971-06-26 1979-02-02
US3944875A (en) * 1971-08-10 1976-03-16 Fujitsu Limited Gas discharge device having a function of shifting discharge spots
JPS5314893B2 (en) * 1971-09-18 1978-05-20
GB1425421A (en) * 1972-01-31 1976-02-18 Hitachi Ltd Photosensor driving system
US3976912A (en) * 1972-02-23 1976-08-24 Owens-Illinois, Inc. Electrical supply system and method for improving the operating characteristics of gaseous discharge display panels
US3778674A (en) * 1972-04-14 1973-12-11 Sperry Rand Corp D. c. gas discharge display apparatus with pulse train memory sustaining potential
US3942161A (en) * 1972-06-28 1976-03-02 Owens-Illinois, Inc. Selective control of discharge position in gas discharge display/memory device
US3823394A (en) * 1972-06-28 1974-07-09 Owens Illinois Inc Selective control of discharge position in gas discharge display/memory device
JPS535790B2 (en) * 1973-08-03 1978-03-02
US4058814A (en) * 1976-03-29 1977-11-15 Gould, Inc. Electrographic writing system with diode switching assembly
US4077033A (en) * 1976-09-13 1978-02-28 Control Data Corporation Plasma display drive circuit and method
US4128901A (en) * 1977-08-17 1978-12-05 Owens-Illinois, Inc. Ground-reference power supply for gas discharge display/memory panel driving and addressing circuitry
JPH0736567B2 (en) * 1989-03-17 1995-04-19 株式会社日立製作所 Pulse signal transmission method, pulse signal transmission device, and semiconductor switch suitable for pulse signal transmission

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995682A (en) * 1960-01-28 1961-08-08 Sylvania Electric Prod Switching circuit for use with electroluminescent display devices
US3559190A (en) * 1966-01-18 1971-01-26 Univ Illinois Gaseous display and memory apparatus
US3500075A (en) * 1966-11-02 1970-03-10 Gen Electric Bipolar pulse generating circuits
US3538380A (en) * 1967-11-15 1970-11-03 Itt Electroluminescent display unit including discharge path
US3573542A (en) * 1968-03-28 1971-04-06 Control Data Corp Gaseous display control
US3590315A (en) * 1969-04-28 1971-06-29 Westinghouse Electric Corp Panel display switch having a source of priming voltage
US3614739A (en) * 1969-05-02 1971-10-19 Owens Illinois Inc Integrated driving circuitry for gas discharge panel
US3671938A (en) * 1969-05-02 1972-06-20 Bell Telephone Labor Inc Gaseous display device

Also Published As

Publication number Publication date
DE2161978A1 (en) 1972-07-06
SE378149B (en) 1975-08-18
CA957043A (en) 1974-10-29
NL7117195A (en) 1972-06-20
DE2161978C2 (en) 1987-06-04
FR2118646A5 (en) 1972-07-28
US3689912A (en) 1972-09-05
IT943270B (en) 1973-04-02
BE776781A (en) 1972-04-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee