GB1011542A - Display device - Google Patents

Display device

Info

Publication number
GB1011542A
GB1011542A GB41668/61A GB4166861A GB1011542A GB 1011542 A GB1011542 A GB 1011542A GB 41668/61 A GB41668/61 A GB 41668/61A GB 4166861 A GB4166861 A GB 4166861A GB 1011542 A GB1011542 A GB 1011542A
Authority
GB
United Kingdom
Prior art keywords
voltage waves
piezo
electrodes
sheet
layer
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
GB41668/61A
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.)
Verizon Laboratories Inc
GTE LLC
Original Assignee
General Telephone and Electronics Corp
General Telephone and Electronics Laboratories 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 General Telephone and Electronics Corp, General Telephone and Electronics Laboratories Inc filed Critical General Telephone and Electronics Corp
Publication of GB1011542A publication Critical patent/GB1011542A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/20—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded

Landscapes

  • Electroluminescent Light Sources (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

<PICT:1011542/C4-C5/1> In a display device of the type in which an electroluminescent layer 11 is excited by two or more voltage waves generated in a piezo-electric sheet 10 by electrodes 19 . . . 22 to produce a bright spot where all the voltage waves intersect, secondary light crosses or spots caused by other parts of the voltage waves or crossings thereof are reduced or eliminated by incorporating a non-linear resistance layer 12 which presents a low resistance only at the desired intersection point. Earthed layers 20a and 13 are provided below the electrodes 19 . . . 22 and top transparent electrode 14 respectively; the electrode 14 may be connected alternatively to earth or to a modulating source. Wave absorbers 15 . . . 18 of lead provided at the edges of the sheet 10 to prevent wave reflections. The piezo-electric sheet may be a PTZ ceramic and the non-resistive layer may be non-photoconductive cadmium sulphide. Specifications 900,995, 905,682, 971,459 and 985,222 are referred to.
GB41668/61A 1960-11-30 1961-11-21 Display device Expired GB1011542A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72788A US3072821A (en) 1960-11-30 1960-11-30 Display device

Publications (1)

Publication Number Publication Date
GB1011542A true GB1011542A (en) 1965-12-01

Family

ID=22109760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41668/61A Expired GB1011542A (en) 1960-11-30 1961-11-21 Display device

Country Status (3)

Country Link
US (1) US3072821A (en)
BE (1) BE610849A (en)
GB (1) GB1011542A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202868A (en) * 1962-10-24 1965-08-24 Gen Telephone & Elect Electroluminescent-piezoelectric bar graph display system
US3275871A (en) * 1964-02-17 1966-09-27 Sperry Rand Corp Display apparatus
US3453595A (en) * 1964-06-30 1969-07-01 Ibm Optic to acoustic converter for pattern recognition
US3824586A (en) * 1972-09-07 1974-07-16 Univ Leland Stanford Junior Method of and apparatus for analog to digital conversion utilizing acoustic waves
US4627182A (en) * 1985-06-03 1986-12-09 Tempo Instrument Incorporated Bi-stable display device
TWI746193B (en) * 2018-05-17 2021-11-11 美商伊英克加利福尼亞有限責任公司 Electro-optic display

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816236A (en) * 1956-06-19 1957-12-10 Gen Electric Method of and means for detecting stress patterns
US2922923A (en) * 1959-03-19 1960-01-26 Sylvania Electric Prod Electroluminescent devices

Also Published As

Publication number Publication date
US3072821A (en) 1963-01-08
BE610849A (en) 1962-03-16

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