[go: up one dir, main page]

GB1026709A - Improvements in or relating to electroluminescent elements - Google Patents

Improvements in or relating to electroluminescent elements

Info

Publication number
GB1026709A
GB1026709A GB1775564A GB1775564A GB1026709A GB 1026709 A GB1026709 A GB 1026709A GB 1775564 A GB1775564 A GB 1775564A GB 1775564 A GB1775564 A GB 1775564A GB 1026709 A GB1026709 A GB 1026709A
Authority
GB
United Kingdom
Prior art keywords
zinc oxide
layer
thick
enamel
tio2
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
GB1775564A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1026709A publication Critical patent/GB1026709A/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
    • 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
    • H05B33/20Light 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
    • 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
    • H05B33/22Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
    • 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
    • H05B33/22Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
    • H05B33/24Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers of metallic reflective layers

Landscapes

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

Abstract

An electroluminscent device consists of a phospher, e.g. zinc sulphide activated by copper or silver, embedded in an enamel containing 15-30 m./o. zinc oxide, and a reflecting layer of pigment particles embedded in an enamel containing less than 15 m./o. of zinc oxide. The pigment may be titanium dioxide, barium titanate, zinc oxide, magnesium oxide, or barium sulphate, and the reflecting layer preferably contains less than 0.1, better 0.01, m./o. of antimony and arsenic oxides. Various enamel compositions are given comprising Na2O, K2O, Li2O, CaO, SrO, BaO, ZnO, MgO, SiO2, Al2O, TiO2, B2O3, AS2O3, Sb2O3. The electroluminescent layer may be 25m thick, the reflective layer 25, 50, 90 or 100 m thick, and the device may have a metal base and a stannic oxide conductive layer.ALSO:An electroluminescent device consists of a phosphor, e.g. ZnS activated by Cu or Ag, embedded in an enamel containing 15-30 m/o zinc oxide, and a reflecting layer of pigment particles embedded in an enamel containing less than 15 m/o of zinc oxide. The pigment may be TiO2, BaTiO3, ZnO, MgO, or BaSO4, and the reflecting layer preferably contains less than 0.1 m/o of antimony and arsenic oxides. Various enamel compositions are given comprising Na2O, K2O, Li2O, CaO, SrO, BaO, ZnO, MgO, SiO2, Al2O3, TiO2, B2O3, As2O3, and Sb2O3. The electroluminescent layer may by 25 m thick, the reflective layer 25, 50, 90 or 100m thick, and the device may have a metal base and a stannic oxide conductive layer.
GB1775564A 1963-05-02 1964-04-29 Improvements in or relating to electroluminescent elements Expired GB1026709A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL292266 1963-05-02

Publications (1)

Publication Number Publication Date
GB1026709A true GB1026709A (en) 1966-04-20

Family

ID=19754668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1775564A Expired GB1026709A (en) 1963-05-02 1964-04-29 Improvements in or relating to electroluminescent elements

Country Status (4)

Country Link
BE (1) BE647496A (en)
DE (1) DE1211331B (en)
GB (1) GB1026709A (en)
NL (1) NL292266A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1123399B (en) * 1960-02-04 1962-02-08 Philips Nv Electric luminous lamp

Also Published As

Publication number Publication date
BE647496A (en) 1964-11-04
NL292266A (en)
DE1211331B (en) 1966-02-24

Similar Documents

Publication Publication Date Title
DE69700863T2 (en) Glass composition
BR9907450A (en) Lead-free alkaline metal-free glass compositions
GB1303883A (en)
GB636152A (en) Improvements in photosensitive glasses and articles made thereof
KR830005062A (en) X-ray superabsorption lead-free glass composition
GB1016640A (en) Heat-absorbing glass
GB1026709A (en) Improvements in or relating to electroluminescent elements
GB1033624A (en) Manufacture of electrical resistors and compositions therefor
ES397609A1 (en) Durable borosilicate opal glasses
US2245541A (en) Lead glaze
HUP9603481A2 (en) Glass-composition
GB1018474A (en) Method of preparing electroluminescent phosphors and electroluminescent devices
GB1088889A (en) An electrical resistor composition containing thallium and ruthenium oxides
GB1442287A (en) Electrically insulating artificial resin compositions
ATE92901T1 (en) LEAD-FREE CRYSTAL GLASS COMPOSITION.
JP3104578B2 (en) Antibacterial and antifungal additive for glaze
GB1181840A (en) Flint Optical Glass
US3290535A (en) Electroluminescent lamp having a moisture resistant vitreous light-transmitting material which includes 4 to 8% lif
US3127534A (en) Electroluminescent element with an enamel coated base
US3519446A (en) Ceramic material
GB1121000A (en) Improvements in or relating to optical glass
GB1150838A (en) Improvements in or relating to Glasses
GB1031987A (en) Improvements in electrically conductive vitreous materials
GB1208288A (en) Semiconductive electro-luminescent element
GB889888A (en) Glass compositions