GB1088318A - Blue electroluminescent phosphor - Google Patents

Blue electroluminescent phosphor

Info

Publication number
GB1088318A
GB1088318A GB1682465A GB1682465A GB1088318A GB 1088318 A GB1088318 A GB 1088318A GB 1682465 A GB1682465 A GB 1682465A GB 1682465 A GB1682465 A GB 1682465A GB 1088318 A GB1088318 A GB 1088318A
Authority
GB
United Kingdom
Prior art keywords
electroluminescent phosphor
zine
phosphor
blue electroluminescent
blue
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
GB1682465A
Inventor
Ivie Lee Smith
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
Priority to GB1682465A priority Critical patent/GB1088318A/en
Publication of GB1088318A publication Critical patent/GB1088318A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00Electroluminescent light sources
    • H05B33/12Light sources with substantially two-dimensional radiating surfaces
    • H05B33/14Light 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
    • H05B33/145Arrangements of the electroluminescent material

Abstract

A method of preparing a blue-emitting electroluminescent phosphor comprises mixing zine sulphide with from 0.05 to 0.74% of copper iodide and from 0.05 to 10% of zine oxide, and firing in a stagnant air atmosphere at 850-950 DEG C. for 1-2 hours. The zinc oxide reduces particle growth average sizes of 5 to 15 microns being attainable and eliminates the need to crush and re-fire the phosphor. A specific method of preparation described utilizes 0.5% ZnO and 0.5% CuI by weight of ZnS.
GB1682465A 1965-04-21 1965-04-21 Blue electroluminescent phosphor Expired GB1088318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1682465A GB1088318A (en) 1965-04-21 1965-04-21 Blue electroluminescent phosphor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1682465A GB1088318A (en) 1965-04-21 1965-04-21 Blue electroluminescent phosphor

Publications (1)

Publication Number Publication Date
GB1088318A true GB1088318A (en) 1967-10-25

Family

ID=10084354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1682465A Expired GB1088318A (en) 1965-04-21 1965-04-21 Blue electroluminescent phosphor

Country Status (1)

Country Link
GB (1) GB1088318A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1006170A1 (en) * 1998-12-01 2000-06-07 Osram Sylvania Inc. Electroluminescent phosphor having purple emmision
DE19953924A1 (en) * 1999-11-10 2001-06-07 Bundesdruckerei Gmbh Zinc sulfidic electroluminophores and process for their production
FR2808799A1 (en) * 2000-05-10 2001-11-16 Samsung Sdi Co Ltd Preparation of a zinc sulphide based luminophore with an efficient emission at low voltages by mixing and treating an activator, a co-activator and some fluxes
WO2003055684A2 (en) 2001-12-24 2003-07-10 Digimarc Id Systems, Llc Laser engraving methods and compositions
US7261838B2 (en) 2004-12-28 2007-08-28 Osram Sylvania Inc. Electroluminescent phosphor
US7661600B2 (en) 2001-12-24 2010-02-16 L-1 Identify Solutions Laser etched security features for identification documents and methods of making same
US7694887B2 (en) 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification documents
US7728048B2 (en) 2002-12-20 2010-06-01 L-1 Secure Credentialing, Inc. Increasing thermal conductivity of host polymer used with laser engraving methods and compositions
US7763179B2 (en) 2003-03-21 2010-07-27 Digimarc Corporation Color laser engraving and digital watermarking
US7789311B2 (en) 2003-04-16 2010-09-07 L-1 Secure Credentialing, Inc. Three dimensional data storage
US7793846B2 (en) 2001-12-24 2010-09-14 L-1 Secure Credentialing, Inc. Systems, compositions, and methods for full color laser engraving of ID documents
US7798413B2 (en) 2001-12-24 2010-09-21 L-1 Secure Credentialing, Inc. Covert variable information on ID documents and methods of making same
US7804982B2 (en) 2002-11-26 2010-09-28 L-1 Secure Credentialing, Inc. Systems and methods for managing and detecting fraud in image databases used with identification documents
US7815124B2 (en) 2002-04-09 2010-10-19 L-1 Secure Credentialing, Inc. Image processing techniques for printing identification cards and documents
US7824029B2 (en) 2002-05-10 2010-11-02 L-1 Secure Credentialing, Inc. Identification card printer-assembler for over the counter card issuing

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1006170A1 (en) * 1998-12-01 2000-06-07 Osram Sylvania Inc. Electroluminescent phosphor having purple emmision
US7067071B1 (en) 1999-11-10 2006-06-27 Bundesdruckeri GmbH Zinc sulfide electroluminophores and method for production thereof
DE19953924A1 (en) * 1999-11-10 2001-06-07 Bundesdruckerei Gmbh Zinc sulfidic electroluminophores and process for their production
FR2808799A1 (en) * 2000-05-10 2001-11-16 Samsung Sdi Co Ltd Preparation of a zinc sulphide based luminophore with an efficient emission at low voltages by mixing and treating an activator, a co-activator and some fluxes
US7661600B2 (en) 2001-12-24 2010-02-16 L-1 Identify Solutions Laser etched security features for identification documents and methods of making same
EP1550077A2 (en) * 2001-12-24 2005-07-06 Digimarc ID Systems, LLC Laser engraving methods and compositions, and articles having laser engraving thereon
EP1550077A4 (en) * 2001-12-24 2006-07-05 Digimarc Id Systems Llc Laser engraving methods and compositions, and articles having laser engraving thereon
US7694887B2 (en) 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification documents
US8083152B2 (en) 2001-12-24 2011-12-27 L-1 Secure Credentialing, Inc. Laser etched security features for identification documents and methods of making same
US7980596B2 (en) 2001-12-24 2011-07-19 L-1 Secure Credentialing, Inc. Increasing thermal conductivity of host polymer used with laser engraving methods and compositions
US7793846B2 (en) 2001-12-24 2010-09-14 L-1 Secure Credentialing, Inc. Systems, compositions, and methods for full color laser engraving of ID documents
US7798413B2 (en) 2001-12-24 2010-09-21 L-1 Secure Credentialing, Inc. Covert variable information on ID documents and methods of making same
WO2003055684A2 (en) 2001-12-24 2003-07-10 Digimarc Id Systems, Llc Laser engraving methods and compositions
US8833663B2 (en) 2002-04-09 2014-09-16 L-1 Secure Credentialing, Inc. Image processing techniques for printing identification cards and documents
US7815124B2 (en) 2002-04-09 2010-10-19 L-1 Secure Credentialing, Inc. Image processing techniques for printing identification cards and documents
US7824029B2 (en) 2002-05-10 2010-11-02 L-1 Secure Credentialing, Inc. Identification card printer-assembler for over the counter card issuing
US7804982B2 (en) 2002-11-26 2010-09-28 L-1 Secure Credentialing, Inc. Systems and methods for managing and detecting fraud in image databases used with identification documents
US7728048B2 (en) 2002-12-20 2010-06-01 L-1 Secure Credentialing, Inc. Increasing thermal conductivity of host polymer used with laser engraving methods and compositions
US7763179B2 (en) 2003-03-21 2010-07-27 Digimarc Corporation Color laser engraving and digital watermarking
US7789311B2 (en) 2003-04-16 2010-09-07 L-1 Secure Credentialing, Inc. Three dimensional data storage
US7261838B2 (en) 2004-12-28 2007-08-28 Osram Sylvania Inc. Electroluminescent phosphor

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