GB716159A - Improvements in and relating to electroluminescent materials - Google Patents

Improvements in and relating to electroluminescent materials

Info

Publication number
GB716159A
GB716159A GB22096/52A GB2209652A GB716159A GB 716159 A GB716159 A GB 716159A GB 22096/52 A GB22096/52 A GB 22096/52A GB 2209652 A GB2209652 A GB 2209652A GB 716159 A GB716159 A GB 716159A
Authority
GB
United Kingdom
Prior art keywords
zinc
sept
relating
electroluminescent materials
zinc oxide
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
GB22096/52A
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.)
General Electric Co
Original Assignee
General Electric Co
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 Electric Co filed Critical General Electric Co
Publication of GB716159A publication Critical patent/GB716159A/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
    • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
    • H05B33/145—Arrangements of the electroluminescent material

Landscapes

  • Luminescent Compositions (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

716,159. Electro-luminescent materials. GENERAL ELECTRIC CO. Sept. 2, 1952 [Sept. 8, 1951], No. 22096/52. Drawings to Specification. Class 39(1) An electroluminescent material is prepared by firing together zinc sulphide, zinc selenide, zinc oxide and a copper compound first in an inert atmosphere and then in an oxidizing atmosphere, treating with a mild acid e.g. acetic acid to remove zinc oxide and then with a cyanide, before washing in distilled water and drying. The proportion of zinc sulphide to zinc selenide is in the ratio of 3 or 4 to 1.
GB22096/52A 1951-09-08 1952-09-02 Improvements in and relating to electroluminescent materials Expired GB716159A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US716159XA 1951-09-08 1951-09-08

Publications (1)

Publication Number Publication Date
GB716159A true GB716159A (en) 1954-09-29

Family

ID=22102460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22096/52A Expired GB716159A (en) 1951-09-08 1952-09-02 Improvements in and relating to electroluminescent materials

Country Status (1)

Country Link
GB (1) GB716159A (en)

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