GB1388883A - Apparatus and method and manufacturing colour picture tubes - Google Patents

Apparatus and method and manufacturing colour picture tubes

Info

Publication number
GB1388883A
GB1388883A GB2762472A GB2762472A GB1388883A GB 1388883 A GB1388883 A GB 1388883A GB 2762472 A GB2762472 A GB 2762472A GB 2762472 A GB2762472 A GB 2762472A GB 1388883 A GB1388883 A GB 1388883A
Authority
GB
United Kingdom
Prior art keywords
filter
light source
lens
light
dots
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
GB2762472A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics 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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Publication of GB1388883A publication Critical patent/GB1388883A/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
    • H01J9/2272—Devices for carrying out the processes, e.g. light houses

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

1388883 Luminescent screens MATSUSHITA ELECTRONICS CORP 13 June 1972 [18 June 1971] 27624/72 Heading H1D In the manufacture of a black matrix for a colour television screen wherein a photo-resist on the faceplate is exposed three times through a shadow mask to a light source placed in three different locations and the light passes through a correction lens and a filter or attenuator, the sizes of the dots so formed at the edges of the screen may vary considerably if the filter is near the lens because light passing to adjacent areas from the different source locations passes through widely separated areas of the filter and is therefore subject to different attenuations; this is avoided by placing the filter nearer to the shadow mask than to the lens. Preferably the distance between the light source and the filter is more than 1À5 times the distance between the light source and the lens. The filter may be of glass coated with metal and is preferably mounted so that its centre can be displaced laterally when the position of the light source is changed and so that it can be rotated during an exposure; alternatively, the light may be attenuated by means of a rotating shading blade. The apparatus may be used for depositing dots of polyvinyl alcohol on which a black matrix is formed, or alternatively for depositing phosphor dots.
GB2762472A 1971-06-18 1972-06-13 Apparatus and method and manufacturing colour picture tubes Expired GB1388883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4441471A JPS5546020B1 (en) 1971-06-18 1971-06-18

Publications (1)

Publication Number Publication Date
GB1388883A true GB1388883A (en) 1975-03-26

Family

ID=12690829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2762472A Expired GB1388883A (en) 1971-06-18 1972-06-13 Apparatus and method and manufacturing colour picture tubes

Country Status (8)

Country Link
US (1) US3906515A (en)
JP (1) JPS5546020B1 (en)
BE (1) BE784726A (en)
CA (1) CA976402A (en)
ES (1) ES403949A1 (en)
FR (1) FR2141973B1 (en)
GB (1) GB1388883A (en)
IT (1) IT959321B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185148A (en) * 1985-12-19 1987-07-08 Rca Corp Method for screening line screen slit mask color picture tubes

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013467A (en) * 1971-06-18 1977-03-22 Matsushita Electronics Corporation Method of manufacturing color picture tubes using rotating light attenuator
US4001018A (en) * 1973-06-13 1977-01-04 Tokyo Shibaura Electric Co., Ltd. Method for making a stripe screen on a face plate of a cathode ray tube by rotating correction lens
DE2411869C3 (en) * 1974-03-12 1982-07-08 Standard Elektrik Lorenz Ag, 7000 Stuttgart Photochemical system for coating the fluorescent screen of color television tubes
GB1446835A (en) * 1974-03-13 1976-08-18 Matsushita Electronics Corp Light exposing apparatus for forming a phosphor screen of a cathode ray tube
NL7503665A (en) * 1975-03-27 1976-09-29 Philips Nv METHOD OF MANUFACTURING A CATHODE RAY TUBE FOR DISPLAYING COLORED IMAGES.
US4122461A (en) * 1977-07-11 1978-10-24 Gte Sylvania Incorporated Exposure apparatus and method for manufacturing a cathode ray tube display screen
US4408851A (en) * 1982-05-19 1983-10-11 Rca Corporation Photographic method for printing a viewing-screen structure using a light-transmission filter
JPS6084738A (en) * 1983-10-14 1985-05-14 Sony Corp Method of exposing color cathode-ray tube
JPH0261740U (en) * 1988-10-31 1990-05-08
KR200155319Y1 (en) * 1995-09-25 1999-09-01 손욱 Exposuring device for manufacturing color crt
CN103927045B (en) * 2013-12-30 2017-04-05 上海天马微电子有限公司 Preparation method of touch substrate

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211067A (en) * 1962-06-15 1965-10-12 Rauland Corp Method of exposing a multi-color target structure
US3259038A (en) * 1963-12-27 1966-07-05 Sylvania Electric Prod Light attenuator
NL6715342A (en) * 1967-11-11 1969-05-13
US3601018A (en) * 1968-08-26 1971-08-24 Zenith Radio Corp Method and apparatus for exposing curved substrates
US3667355A (en) * 1970-11-02 1972-06-06 Sylvania Electric Prod Optical system for forming a windowed web in a color cathode ray tubescreen structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185148A (en) * 1985-12-19 1987-07-08 Rca Corp Method for screening line screen slit mask color picture tubes
GB2185148B (en) * 1985-12-19 1990-04-11 Rca Corp Method for screening line screen slit mask color picture tubes

Also Published As

Publication number Publication date
CA976402A (en) 1975-10-21
FR2141973A1 (en) 1973-01-26
DE2229902A1 (en) 1972-12-21
JPS5546020B1 (en) 1980-11-20
DE2229902B2 (en) 1976-09-23
US3906515A (en) 1975-09-16
ES403949A1 (en) 1975-05-01
IT959321B (en) 1973-11-10
BE784726A (en) 1972-12-12
FR2141973B1 (en) 1983-01-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years