FR2239757A1 - Colour CRT screen with three phosphor elements prodn - is based on coating inner screen surface and photoresist followed by exposure - Google Patents

Colour CRT screen with three phosphor elements prodn - is based on coating inner screen surface and photoresist followed by exposure

Info

Publication number
FR2239757A1
FR2239757A1 FR7426414A FR7426414A FR2239757A1 FR 2239757 A1 FR2239757 A1 FR 2239757A1 FR 7426414 A FR7426414 A FR 7426414A FR 7426414 A FR7426414 A FR 7426414A FR 2239757 A1 FR2239757 A1 FR 2239757A1
Authority
FR
France
Prior art keywords
screen
phosphor elements
prodn
exposure
light absorbing
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.)
Granted
Application number
FR7426414A
Other languages
French (fr)
Other versions
FR2239757B1 (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 FR2239757A1 publication Critical patent/FR2239757A1/en
Application granted granted Critical
Publication of FR2239757B1 publication Critical patent/FR2239757B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
    • H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
    • H01J29/327—Black matrix materials
    • 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
    • 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
    • H01J9/2278—Application of light absorbing material, e.g. between the luminescent areas

Abstract

The colour cathode ray tube screen has a number of phosphor elements of three types, corresponding to the three primary colours, these phosphor elements being surrounded by a black matrix film of light absorbing material. Prior to the production of the phosphor elements the entire inner surface of the face screen is coated with a photoresistive material. This coating is exposed to light to produce a latent image in the photoresistive layer. This latent image is then developed in order to remove parts of the coating, corresponding to the passive part of the screen. At least this passive part is coated with a light absorbing material, and then the remaining photoresistive layer is removed from the active part of the screen. the light absorbing film may be provided on the passive screen part prior to or after the application of the black matrix film.
FR7426414A 1973-08-01 1974-07-30 Colour CRT screen with three phosphor elements prodn - is based on coating inner screen surface and photoresist followed by exposure Granted FR2239757A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8582573A JPS579177B2 (en) 1973-08-01 1973-08-01

Publications (2)

Publication Number Publication Date
FR2239757A1 true FR2239757A1 (en) 1975-02-28
FR2239757B1 FR2239757B1 (en) 1978-07-13

Family

ID=13869618

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7426414A Granted FR2239757A1 (en) 1973-08-01 1974-07-30 Colour CRT screen with three phosphor elements prodn - is based on coating inner screen surface and photoresist followed by exposure

Country Status (3)

Country Link
JP (1) JPS579177B2 (en)
DE (1) DE2436396A1 (en)
FR (1) FR2239757A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2413693A1 (en) * 1977-12-27 1979-07-27 Tektronix Inc VIRTUAL MASK EXPOSURE SYSTEM, ESPECIALLY FOR THE MANUFACTURE OF A CATHODIC TUBE SCREEN

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937695A (en) * 1982-08-25 1984-03-01 松下電器産業株式会社 Radio wave sealing device
JPS59124322A (en) * 1982-12-29 1984-07-18 Matsushita Electric Ind Co Ltd Connecting method of liquid crystal panel and circuit board
JPS60154921U (en) * 1984-03-24 1985-10-16 シャープ株式会社 liquid crystal display device
US4657322A (en) * 1985-10-01 1987-04-14 Tektronix, Inc. Microwave interconnect

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2413693A1 (en) * 1977-12-27 1979-07-27 Tektronix Inc VIRTUAL MASK EXPOSURE SYSTEM, ESPECIALLY FOR THE MANUFACTURE OF A CATHODIC TUBE SCREEN

Also Published As

Publication number Publication date
FR2239757B1 (en) 1978-07-13
JPS579177B2 (en) 1982-02-19
JPS5034777A (en) 1975-04-03
DE2436396A1 (en) 1975-02-27

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Legal Events

Date Code Title Description
ST Notification of lapse