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GB2127199A - Method and wiring system for driving a picture display particularly an ac electroluminescent display - Google Patents
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GB2127199A - Method and wiring system for driving a picture display particularly an ac electroluminescent display - Google Patents

Method and wiring system for driving a picture display particularly an ac electroluminescent display

Info

Publication number
GB2127199A
GB2127199A GB08327190A GB8327190A GB2127199A GB 2127199 A GB2127199 A GB 2127199A GB 08327190 A GB08327190 A GB 08327190A GB 8327190 A GB8327190 A GB 8327190A GB 2127199 A GB2127199 A GB 2127199A
Authority
GB
United Kingdom
Prior art keywords
voltage
display
column
line selection
modulation
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.)
Granted
Application number
GB08327190A
Other versions
GB2127199B (en
GB8327190D0 (en
Inventor
Terho Teuvo Harju
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.)
Lohja Oy AB
Original Assignee
Lohja Oy AB
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 Lohja Oy AB filed Critical Lohja Oy AB
Publication of GB8327190D0 publication Critical patent/GB8327190D0/en
Publication of GB2127199A publication Critical patent/GB2127199A/en
Application granted granted Critical
Publication of GB2127199B publication Critical patent/GB2127199B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G09G3/30—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 electroluminescent panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0267—Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0275—Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

A method and a wiring system for driving an AC electroluminescent display (C11, C12, C21, C22) based on the thin film technique and comprising a bi-dimensional matrix (X1, X2; Y1, Y2) consisting of X and Y electrodes, wherein line selection pulses are alternatingly applied to the X electrodes (X1, X2) and column modulation pulses corresponding to the desired luminance are applied to the Y electrodes (Y1, Y2). According to the invention, at least some of the display elements (C11, C12, C21, C22) are charged to a maximum basic voltage of variable polarity, which basic voltage has been selected so that the line selection pulses or the column modulation pulses alone are not sufficient to ignite any display element (C11, C12, C21, C22). The line selection and column modulation voltages are superimposed on the basic voltage, which voltages have been selected so that only the sum of the basic voltage, the line selection voltage (URM), and the column modulation voltage (USM) can bring each element to be selected (C11, C12, C21, C22) to the display state. In the solution in accordance with the invention, the withstand voltage required both from the line drive circuits and from the column drive circuits is only equal to the maximum value of the modulation voltages, about 30 V.
GB08327190A 1982-02-17 1983-02-17 Method and wiring system for driving a picture display particularly an ac electroluminescent display Expired GB2127199B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI820522A FI64248C (en) 1982-02-17 1982-02-17 OIL COUPLING FOER STYRNING AV BILDAOTERGIVNING OCHISYNNERHET VAEXELSTROEMS-ELEKTROLUMINENSAOTERGIVNING
PCT/FI1983/000012 WO1983003021A1 (en) 1982-02-17 1983-02-17 Method and wiring system for driving a picture display, particularly an ac electroluminescent display

Publications (3)

Publication Number Publication Date
GB8327190D0 GB8327190D0 (en) 1983-11-09
GB2127199A true GB2127199A (en) 1984-04-04
GB2127199B GB2127199B (en) 1986-07-16

Family

ID=8515126

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08327190A Expired GB2127199B (en) 1982-02-17 1983-02-17 Method and wiring system for driving a picture display particularly an ac electroluminescent display

Country Status (6)

Country Link
EP (1) EP0101702B1 (en)
JP (1) JPS59500289A (en)
DE (1) DE3332440T1 (en)
FI (1) FI64248C (en)
GB (1) GB2127199B (en)
WO (1) WO1983003021A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60249191A (en) * 1984-05-24 1985-12-09 シチズン時計株式会社 Display driving circuit
JPH0634151B2 (en) * 1985-06-10 1994-05-02 シャープ株式会社 Driving circuit for thin film EL display device
EP0249954B1 (en) * 1986-06-17 1992-12-02 Fujitsu Limited Driving a matrix type display device
GB2194663B (en) * 1986-07-18 1990-06-20 Stc Plc Display device
JP2647859B2 (en) * 1987-09-16 1997-08-27 シャープ株式会社 Thin film EL display
JPH0748143B2 (en) * 1988-12-28 1995-05-24 シャープ株式会社 Driving method of display device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5327099B2 (en) * 1973-10-03 1978-08-05
US4237456A (en) * 1976-07-30 1980-12-02 Sharp Kabushiki Kaisha Drive system for a thin-film EL display panel
US4275336A (en) * 1979-03-05 1981-06-23 International Business Machines Corporation Method of improving the memory effect and brightness of an alternating current excited thin film electroluminscent device
JPS5714889A (en) * 1980-06-30 1982-01-26 Fujitsu Ltd Matrix display unit driving method
FI62447C (en) * 1981-04-22 1982-12-10 Lohja Ab Oy FOERFARANDE FOER STYRNING AV BILDAOTERGIVNING OCH I SYNNERHET VAEXELSTROEMSELEKTROLUMINENSAOTERGIVNING

Also Published As

Publication number Publication date
JPS59500289A (en) 1984-02-23
FI64248C (en) 1983-10-10
GB2127199B (en) 1986-07-16
EP0101702B1 (en) 1986-02-12
JPH0220994B2 (en) 1990-05-11
DE3332440T1 (en) 1984-02-09
EP0101702A1 (en) 1984-03-07
FI64248B (en) 1983-06-30
GB8327190D0 (en) 1983-11-09
WO1983003021A1 (en) 1983-09-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee