GB735239A - Improvements in and relating to electroluminescent cells - Google Patents

Improvements in and relating to electroluminescent cells

Info

Publication number
GB735239A
GB735239A GB28647/52A GB2864752A GB735239A GB 735239 A GB735239 A GB 735239A GB 28647/52 A GB28647/52 A GB 28647/52A GB 2864752 A GB2864752 A GB 2864752A GB 735239 A GB735239 A GB 735239A
Authority
GB
United Kingdom
Prior art keywords
layer
electroluminescent
silver
nov
suspended
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
GB28647/52A
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 GB735239A publication Critical patent/GB735239A/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
    • H05B33/26—Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode

Abstract

735,239. Electroluminescence. GENERAL ELECTRIC CO. Nov. 13, 1952 [Nov. 14, 1951], No. 28647/52. Class 39 (1). An electroluminescent cell has two opaque conducting layers 11, 13 enclosing the electroluminescent layer 12, one conducting layer 13 being etched, scratched or cut to a pattern or indicia as in an illuminated panel or clock face. Zinc sulphide activated by copper or silver and suspended in alkyd resin and cellulose nitrate is the electroluminescent material; the conducting layer 11 is evaporated aluminium or a thin film of silver paste; and the layer 13 is of evaporated aluminium, tin, silver, gold or copper. The phosphor is suspended in a dielectric medium, e.g. an alkyd resin, and the two materials have preferably the same index of refraction.
GB28647/52A 1951-11-14 1952-11-13 Improvements in and relating to electroluminescent cells Expired GB735239A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US735239XA 1951-11-14 1951-11-14

Publications (1)

Publication Number Publication Date
GB735239A true GB735239A (en) 1955-08-17

Family

ID=22114195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28647/52A Expired GB735239A (en) 1951-11-14 1952-11-13 Improvements in and relating to electroluminescent cells

Country Status (1)

Country Link
GB (1) GB735239A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212980A (en) * 1987-11-21 1989-08-02 Emi Plc Thorn Electroluminescent display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212980A (en) * 1987-11-21 1989-08-02 Emi Plc Thorn Electroluminescent display device
US4982135A (en) * 1987-11-21 1991-01-01 Thorn Emi Plc Electroluminescent device
GB2212980B (en) * 1987-11-21 1991-02-20 Emi Plc Thorn Electroluminescent display device

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