GB1319301A - Electroluminescent arrays laser-cooling system - Google Patents

Electroluminescent arrays laser-cooling system

Info

Publication number
GB1319301A
GB1319301A GB2236870A GB2236870A GB1319301A GB 1319301 A GB1319301 A GB 1319301A GB 2236870 A GB2236870 A GB 2236870A GB 2236870 A GB2236870 A GB 2236870A GB 1319301 A GB1319301 A GB 1319301A
Authority
GB
United Kingdom
Prior art keywords
voltage
threshold
oscillator
magnitude
converter
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
GB2236870A
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.)
Energy Conversion Devices Inc
Original Assignee
Energy Conversion Devices 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 Energy Conversion Devices Inc filed Critical Energy Conversion Devices Inc
Publication of GB1319301A publication Critical patent/GB1319301A/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
    • H04N3/14—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by means of electrically scanned solid-state devices
    • 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
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/088—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements using a non-linear two-terminal element
    • G09G2300/0885—Pixel comprising a non-linear two-terminal element alone in series with each display pixel element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/088—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements using a non-linear two-terminal element
    • G09G2300/089—Pixel comprising a non-linear two-terminal element in series with each display pixel element, the series comprising also other elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)
  • Electroluminescent Light Sources (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

1319301 Television ENERGY CONVERSION DEVICES Inc 8 May 1970 [16 May 1969] 22368/70 Heading H4F To display a television signal on an X-Y addressable array of electroluminescent elements, row electrodes 17-21 are sequentially energized at line frequency and the video signal 31 is converted at 30 to a parallel form which is used to energize respective column electrodes 22-27 after time delays determined by the amplitude of the video signal at the corresponding points in the addressed row, so that the addressed elements are energized thereafter until the row electrode is de-energized, for periods corresponding to the desired brightness at the individual elements. As described, vertical sync pulses 29 cause the output of an oscillator 28 to be gated to rows 17-21 in turn, and horizontal sync pulses 32 actuate the converter 30, i.e. they constitute the points in time from which the delay of energization of electrodes 22-27 is measured. Each electroluminescent element 37 acts as a capacitor in a circuit 16 comprising also a resistor 35 and a threshold switching or Ovionic device 36. The device 36 is bi-directional and switches from a high to a low impedance condition when a threshold voltage in excess of a threshold value is applied, after a delay related to the magnitude of the excess voltage, Figs. 3 and 4 (not shown). When the applied voltage is switched off, the threshold turn-on voltage is lower than the original value and takes some time to return thereto, Fig. 5 (not shown). Therefore if the length and magnitude of pulses from the converter 30 is sufficient to turn the device on initially (in combination with the output of oscillator 28), the output of oscillator 28 may be sufficient and of sufficiently high frequency, Fig. 5A (not shown), to repeatedly switch the device on at its reduced threshold voltage. The delay before energization of an electroluminescent circuit may be determined by the magnitude and/or timing of pulses from converter 30. Arrays of other geometries, e.g. polar, may be used for other display purposes.
GB2236870A 1969-05-16 1970-05-08 Electroluminescent arrays laser-cooling system Expired GB1319301A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82527469A 1969-05-16 1969-05-16

Publications (1)

Publication Number Publication Date
GB1319301A true GB1319301A (en) 1973-06-06

Family

ID=25243580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2236870A Expired GB1319301A (en) 1969-05-16 1970-05-08 Electroluminescent arrays laser-cooling system

Country Status (7)

Country Link
US (1) US3627924A (en)
CA (1) CA928824A (en)
DE (1) DE2023692B2 (en)
FR (1) FR2047858A5 (en)
GB (1) GB1319301A (en)
NL (1) NL7007096A (en)
SE (1) SE364162B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000412A (en) * 1977-06-16 1979-01-04 Sony Corp Method and apparatus for displaying a video picture on a matrix of light emitting elements

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742483A (en) * 1971-06-01 1973-06-26 Burroughs Corp Video display system using display panel
US3765011A (en) * 1971-06-10 1973-10-09 Zenith Radio Corp Flat panel image display
US3809952A (en) * 1971-06-21 1974-05-07 Burroughs Corp Apparatus reducing the power required for scanned display devices
BE789980A (en) * 1971-10-12 1973-04-12 Owens Illinois Inc IMPROVED CONTROL WAVEFORM FOR A GAS DISCHARGE INDICATION / MEMORIZATION PANEL
JPS5238693B2 (en) * 1971-12-30 1977-09-30
US4020280A (en) * 1973-02-21 1977-04-26 Ryuichi Kaneko Pulse width luminance modulation system for a DC gas discharge display panel
US3863023A (en) * 1973-02-28 1975-01-28 Owens Illinois Inc Method and apparatus for generation of gray scale in gaseous discharge panel using multiple memory planes
JPS5331698Y2 (en) * 1973-05-19 1978-08-07
US4009335A (en) * 1973-08-09 1977-02-22 Stewart-Warner Corporation Gray scale display system employing digital encoding
US4024529A (en) * 1974-06-11 1977-05-17 Nippon Hoso Kyokai Image display device
US4074319A (en) * 1976-12-13 1978-02-14 Bell Telephone Laboratories, Incorporated Light emitting diode array imaging system - parallel approach
JPS53105317A (en) * 1977-02-25 1978-09-13 Hitachi Ltd Luminance adjusting circuit
US4087792A (en) * 1977-03-03 1978-05-02 Westinghouse Electric Corp. Electro-optic display system
US4344622A (en) * 1978-06-16 1982-08-17 Rockwell International Corporation Display apparatus for electronic games
JPS55143652A (en) 1979-04-25 1980-11-10 Hitachi Ltd Series-parallel signal converter
DE3049666C2 (en) * 1979-04-25 1983-12-08 Hitachi Ltd Serial-parallel signal converter - has address counter controlling serial inputting of digital data signals in matrix memory
US4323896A (en) * 1980-11-13 1982-04-06 Stewart-Warner Corporation High resolution video display system
JPS57201295A (en) * 1981-06-04 1982-12-09 Sony Corp Two-dimensional address device
US4662720A (en) * 1983-03-30 1987-05-05 Manchester R & D Partnership Colored encapsulated liquid crystal devices using imbibition of colored dyes and scanned multicolor displays
US4652872A (en) * 1983-07-07 1987-03-24 Nec Kansai, Ltd. Matrix display panel driving system
US4646079A (en) * 1984-09-12 1987-02-24 Cornell Research Foundation, Inc. Self-scanning electroluminescent display
JPS61110198A (en) * 1984-11-05 1986-05-28 株式会社東芝 Matrix type display unit
US5142389A (en) * 1985-03-01 1992-08-25 Manchester R & D Limited Partnership Liquid crystal color display and method
JP2659943B2 (en) * 1985-03-01 1997-09-30 マンチェスター アール アンド デイ リミテッド パートナーシップ Liquid crystal device
US4878741A (en) * 1986-09-10 1989-11-07 Manchester R & D Partnership Liquid crystal color display and method
US4953953A (en) * 1985-03-01 1990-09-04 Manchester R & D Partnership Complementary color liquid display
US5208686A (en) * 1985-03-01 1993-05-04 Manchester R&D Partnership Liquid crystal color display and method
US5168380A (en) * 1985-03-01 1992-12-01 Manchester R & D Partnership An Ohio Limited Partnership Multiple containment mediums of operationally nematic liquid crystal responsive to a prescribed input
US5345322A (en) * 1985-03-01 1994-09-06 Manchester R&D Limited Partnership Complementary color liquid crystal display
FR2584520B1 (en) * 1985-07-03 1990-06-08 Sayag Electronic DISPLAY DEVICE HAVING A MATRIX ARRAY OF LIGHT SOURCES
DE10295686B4 (en) * 2001-08-22 2009-08-06 Asahi Kasei Microsystems Co., Ltd. Display panel drive circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021387A (en) * 1956-04-13 1962-02-13 Rca Corp Electrical display device
US3254267A (en) * 1960-10-25 1966-05-31 Westinghouse Electric Corp Semiconductor-controlled, direct current responsive electroluminescent phosphors
US3290554A (en) * 1962-12-17 1966-12-06 Edgar A Sack Electroluminescent display screen and circuit therefor
US3340405A (en) * 1966-07-05 1967-09-05 Energy Conversion Devices Inc Alternating current phase control circuit
NL6613813A (en) * 1966-09-30 1968-04-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000412A (en) * 1977-06-16 1979-01-04 Sony Corp Method and apparatus for displaying a video picture on a matrix of light emitting elements
GB2000412B (en) * 1977-06-16 1982-01-27 Sony Corp Method and apparatus for displaying a video picture on a matrix of light emitting elements

Also Published As

Publication number Publication date
CA928824A (en) 1973-06-19
FR2047858A5 (en) 1971-03-12
DE2023692A1 (en) 1970-11-19
NL7007096A (en) 1970-11-18
DE2023692C3 (en) 1975-10-09
SE364162B (en) 1974-02-11
US3627924A (en) 1971-12-14
DE2023692B2 (en) 1975-03-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees