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GB2013915B - Method of manufacturing fluorescent screens of colour picture tubes - Google Patents

Method of manufacturing fluorescent screens of colour picture tubes

Info

Publication number
GB2013915B
GB2013915B GB7850255A GB7850255A GB2013915B GB 2013915 B GB2013915 B GB 2013915B GB 7850255 A GB7850255 A GB 7850255A GB 7850255 A GB7850255 A GB 7850255A GB 2013915 B GB2013915 B GB 2013915B
Authority
GB
United Kingdom
Prior art keywords
exposed
film
colour
colour picture
picture tubes
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
GB7850255A
Other versions
GB2013915A (en
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB2013915A publication Critical patent/GB2013915A/en
Application granted granted Critical
Publication of GB2013915B publication Critical patent/GB2013915B/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
    • G03F7/26—Processing photosensitive materials; Apparatus therefor
    • G03F7/28—Processing photosensitive materials; Apparatus therefor for obtaining powder images

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)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

A film of a photosensitive composition having different powder receiving capability between its exposed and unexposed portions is coated on the inner surface of the face plate of a colour picture tube. Then, the film is exposed to light through the colour selection electrode which is spaced a predetermined distance from the face plate to form a pattern of exposed portions on the film. Thereafter powders of a pigment and a phosphor are deposited onto the pattern in accordance with the difference in the powder receiving capability. Preferably the exposed portions are rendered tacky and the composition can be exposed several times, each time a phosphor of a different colour being deposited.
GB7850255A 1978-01-17 1978-12-29 Method of manufacturing fluorescent screens of colour picture tubes Expired GB2013915B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP280978A JPS5496356A (en) 1978-01-17 1978-01-17 Forming method for fluorescent screen of color picture tube

Publications (2)

Publication Number Publication Date
GB2013915A GB2013915A (en) 1979-08-15
GB2013915B true GB2013915B (en) 1982-10-13

Family

ID=11539705

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7850255A Expired GB2013915B (en) 1978-01-17 1978-12-29 Method of manufacturing fluorescent screens of colour picture tubes

Country Status (3)

Country Link
JP (1) JPS5496356A (en)
FI (1) FI783998A7 (en)
GB (1) GB2013915B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4392077A (en) 1979-02-14 1983-07-05 Zenith Radio Corporation Deeply filtered television image display

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540804C1 (en) * 1985-11-16 1987-04-16 Du Pont Deutschland Process for the production of negative samples consisting of several different powders
FR2766173B1 (en) 1997-07-18 1999-08-20 Saint Gobain Vitrage PROCESS FOR OBTAINING A DECORATIVE PATTERN ON A TRANSPARENT SUBSTRATE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5291366A (en) * 1976-01-28 1977-08-01 Hitachi Ltd Production of fluorescent screen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4392077A (en) 1979-02-14 1983-07-05 Zenith Radio Corporation Deeply filtered television image display

Also Published As

Publication number Publication date
GB2013915A (en) 1979-08-15
JPS5496356A (en) 1979-07-30
FI783998A7 (en) 1979-07-18

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Legal Events

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