GB1190610A - Improvements relating to Cathode-Ray Tubes - Google Patents

Improvements relating to Cathode-Ray Tubes

Info

Publication number
GB1190610A
GB1190610A GB5884267A GB5884267A GB1190610A GB 1190610 A GB1190610 A GB 1190610A GB 5884267 A GB5884267 A GB 5884267A GB 5884267 A GB5884267 A GB 5884267A GB 1190610 A GB1190610 A GB 1190610A
Authority
GB
United Kingdom
Prior art keywords
zncds
phosphor
layer
cathode
dec
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
GB5884267A
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 GB1190610A publication Critical patent/GB1190610A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/56—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing sulfur
    • C09K11/562—Chalcogenides
    • C09K11/565—Chalcogenides with zinc cadmium
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/22—Luminescent screens characterised by the binder or adhesive for securing the luminescent material to its support, e.g. vessel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Luminescent Compositions (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

1,190,610. Luminescent screens. PHILIPS ELECTRIC & ASSOCIATED INDUSTRIES Ltd. 28 Dec., 1967 [31 Dec., 1966], No. 58842/67. Heading C4S. A method of manufacturing a cathode-ray tube (e.g. a colour tube) comprising a ZnCdS phosphor layer includes applying a suspension of coated particles (of 5 micron size, for example) of the phosphor in an organic binder (e.g. polyvinyl alcohol), the particles being completely coated with a layer of inorganic material (e.g. magnesium, calcium or zinc phosphate, magnesium or barium silicate, silicic acid produced by hydrolysis of an organic silicon compound, but preferably calcium silicate), the layer being permeable to electrons and the luminescent light emitted by the phosphor, the inorganic material not being water soluble. The coated particles may be green luminescine ZnCdS: Ag (e.g. 34% by wt. CdS). In a colour C.R.T., green luminescing ZnCdS: Ag, blue and red lumines. cing ZnS: Ag and europium activated yttrium vanadate respectively are instanced.
GB5884267A 1966-12-31 1967-12-28 Improvements relating to Cathode-Ray Tubes Expired GB1190610A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6618489A NL6618489A (en) 1966-12-31 1966-12-31

Publications (1)

Publication Number Publication Date
GB1190610A true GB1190610A (en) 1970-05-06

Family

ID=19798614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5884267A Expired GB1190610A (en) 1966-12-31 1967-12-28 Improvements relating to Cathode-Ray Tubes

Country Status (9)

Country Link
JP (1) JPS503615B1 (en)
BE (1) BE708837A (en)
CH (1) CH470754A (en)
DE (1) DE1614301A1 (en)
ES (1) ES348766A1 (en)
FR (1) FR1549070A (en)
GB (1) GB1190610A (en)
NL (1) NL6618489A (en)
SE (1) SE323751B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5844361A (en) * 1996-12-13 1998-12-01 Motorola, Inc. Field emission display having a stabilized phosphor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908588A (en) * 1957-03-15 1959-10-13 Rca Corp Zinc sulfide-coated phosphor particles, phosphor screen, and method of making screen

Also Published As

Publication number Publication date
FR1549070A (en) 1968-12-06
ES348766A1 (en) 1969-03-16
NL6618489A (en) 1968-07-01
BE708837A (en) 1968-07-01
DE1614301A1 (en) 1970-05-27
CH470754A (en) 1969-03-31
JPS503615B1 (en) 1975-02-07
SE323751B (en) 1970-05-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee