GB1135656A - Method of manufacture of phosphor arrays for cathode ray tube screens and coating compositions useful therein - Google Patents

Method of manufacture of phosphor arrays for cathode ray tube screens and coating compositions useful therein

Info

Publication number
GB1135656A
GB1135656A GB3542966A GB3542966A GB1135656A GB 1135656 A GB1135656 A GB 1135656A GB 3542966 A GB3542966 A GB 3542966A GB 3542966 A GB3542966 A GB 3542966A GB 1135656 A GB1135656 A GB 1135656A
Authority
GB
United Kingdom
Prior art keywords
photo
phosphor
parts
cyclic ether
sensitive
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
GB3542966A
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.)
National Video Corp
Original Assignee
National Video Corp
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 National Video Corp filed Critical National Video Corp
Publication of GB1135656A publication Critical patent/GB1135656A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings
    • H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
    • H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/04—Chromates

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

1,135,656. Photo-sensitive materials. NATIONAL VIDEO CORP. Aug. 8, 1966 [Sept.22, 1965], No. 35429/66. Heading G2C. [Also in Division H1] In a method of manufacturing a phosphor array for a cathode ray tube screen in which at least one phosphor-containing photo-sensitive coating composition is applied to the screen, exposed to active light to harden selected areas and then developed to remove the coating from unexposed areas, a water soluble mono- or di-cyclic ether which acts as a surface-active and dispersing agent is incorporated in the photo-sensitive coating in an amount comprising at least 0À05% by weight. The cyclic ether, which may be 1,4-dioxane, tetrahydrofuran, or tetrahydropyran comprising 0À05 to 3À0% by weight, reduces the exposure and drying time and inhibits cross-contaminators between individual phosphor elements. In an example the cyclic ether was added to the blue and red phosphorcontaining compositions which were applied in turn over a green phosphor-containing composition. The photo-sensitive composition may comprise in part by weight per cent; - polyvinyl alcohol colloid, 2 to 5 parts; alkali metal or ammonium dictranate photo-sensitizer, 2 to 5 parts; phosphor particles, 18 to 25 parts; 1, 4-dioxane, 0À05 to 3 parts, deionized water, to 100%. The cyclic ether also enables organic colloids such as polyvinyl alcohol or acetate to be used which have average molecular weights of from 83,000 to 125,000.
GB3542966A 1965-09-22 1966-08-08 Method of manufacture of phosphor arrays for cathode ray tube screens and coating compositions useful therein Expired GB1135656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48940365A 1965-09-22 1965-09-22

Publications (1)

Publication Number Publication Date
GB1135656A true GB1135656A (en) 1968-12-04

Family

ID=23943708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3542966A Expired GB1135656A (en) 1965-09-22 1966-08-08 Method of manufacture of phosphor arrays for cathode ray tube screens and coating compositions useful therein

Country Status (2)

Country Link
DE (1) DE1564446A1 (en)
GB (1) GB1135656A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399090A (en) * 1979-10-18 1983-08-16 U.S. Philips Corporation Method of producing mouldings and layers of inorganic materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399090A (en) * 1979-10-18 1983-08-16 U.S. Philips Corporation Method of producing mouldings and layers of inorganic materials

Also Published As

Publication number Publication date
DE1564446A1 (en) 1969-12-11

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