JPS5676140A - Manufacture of cathode-ray tube - Google Patents

Manufacture of cathode-ray tube

Info

Publication number
JPS5676140A
JPS5676140A JP15212179A JP15212179A JPS5676140A JP S5676140 A JPS5676140 A JP S5676140A JP 15212179 A JP15212179 A JP 15212179A JP 15212179 A JP15212179 A JP 15212179A JP S5676140 A JPS5676140 A JP S5676140A
Authority
JP
Japan
Prior art keywords
resistance layer
diameter section
layer
forming
section
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
JP15212179A
Other languages
Japanese (ja)
Other versions
JPS6318832B2 (en
Inventor
Masao Inoue
Kazuo Ooya
Shingo Watabe
Shozo Aoyama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15212179A priority Critical patent/JPS5676140A/en
Publication of JPS5676140A publication Critical patent/JPS5676140A/en
Publication of JPS6318832B2 publication Critical patent/JPS6318832B2/ja
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
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/38—Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode

Abstract

PURPOSE:To prevent the deterioration of conductivity at the contacting portion of spacer, by forming a high resistance layer at the contacting portion of bulb spacer in the portion of funnel having reduced diameter then forming a low resistance layer from the small diameter section to the large diameter section thereafter applying a plug at the small diameter section and forming a conductive layer. CONSTITUTION:A neck tube 35 is connected to a smale diameter section 342 of a funnel 34 then a low resistance layer 381 containing iron oxide is formed from a large diameter section 341 by means of a sponge 42. Then water is contained in the sponge 44 and a portion of the resistance layer 381 is rubbed up while diluting through water to form a low resistance layer 381 having thick film depth and a high resistance layer 382 having thin film depth following to said layer 381. Thereafter it is dried and a rubber plug is contacted against the intermediate section of the resistance layer 382 to form a conductive film through spraying. Consequently insufficient conductivity between a bulb spacer and a connecting section can be prevented without sacrifice of discharging current suppressing effect.
JP15212179A 1979-11-26 1979-11-26 Manufacture of cathode-ray tube Granted JPS5676140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15212179A JPS5676140A (en) 1979-11-26 1979-11-26 Manufacture of cathode-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15212179A JPS5676140A (en) 1979-11-26 1979-11-26 Manufacture of cathode-ray tube

Publications (2)

Publication Number Publication Date
JPS5676140A true JPS5676140A (en) 1981-06-23
JPS6318832B2 JPS6318832B2 (en) 1988-04-20

Family

ID=15533512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15212179A Granted JPS5676140A (en) 1979-11-26 1979-11-26 Manufacture of cathode-ray tube

Country Status (1)

Country Link
JP (1) JPS5676140A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195993A2 (en) * 1985-03-28 1986-10-01 Nokia Unterhaltungselektronik (Deutschland) GmbH Method for the production of a colour picture tube provided with an internal conductive layer
JPH02297835A (en) * 1989-05-10 1990-12-10 Nec Corp Coating method for conductive film graphite and apparatus therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195993A2 (en) * 1985-03-28 1986-10-01 Nokia Unterhaltungselektronik (Deutschland) GmbH Method for the production of a colour picture tube provided with an internal conductive layer
JPH02297835A (en) * 1989-05-10 1990-12-10 Nec Corp Coating method for conductive film graphite and apparatus therefor

Also Published As

Publication number Publication date
JPS6318832B2 (en) 1988-04-20

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