JPS5750753A - Color picture tube - Google Patents

Color picture tube

Info

Publication number
JPS5750753A
JPS5750753A JP12598580A JP12598580A JPS5750753A JP S5750753 A JPS5750753 A JP S5750753A JP 12598580 A JP12598580 A JP 12598580A JP 12598580 A JP12598580 A JP 12598580A JP S5750753 A JPS5750753 A JP S5750753A
Authority
JP
Japan
Prior art keywords
metal oxide
silicon dioxide
electron gun
high resistance
conductive membrane
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
JP12598580A
Other languages
Japanese (ja)
Other versions
JPH0359542B2 (en
Inventor
Shigemi Hirasawa
Masatoshi Akiyama
Yoshio Tanaka
Hiroyoshi Chiyoda
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
Resonac Corp
Original Assignee
Hitachi Ltd
Hitachi Powdered Metals 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 Hitachi Ltd, Hitachi Powdered Metals Co Ltd filed Critical Hitachi Ltd
Priority to JP12598580A priority Critical patent/JPS5750753A/en
Publication of JPS5750753A publication Critical patent/JPS5750753A/en
Publication of JPH0359542B2 publication Critical patent/JPH0359542B2/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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings

Landscapes

  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE:To decrease the peak current at sparking with an electron gun so as to prevent the damage of a circuit by forming a high resistance electric conductive membrane consisting of a specific weight ratio of black lead, silicon dioxide and silicata to metal oxide, on the inner face of a funnel part. CONSTITUTION:A high resistance electric conductive membrane which consists of the weight ratio of 0.5-50 part of black lead, 0.5-4 part of silicon dioxide 5-60 part of silicate to 10 part of metal oxide and the metal oxide, black lead and silicon dioxide of 0.05-3mum, 0.1-10mum, 0.005-0.05mum respective particle size is spread and stuck to the inner face of a funnel part. Thereby, it is possible to form a strong high resistance electric conductive membrane which has uniform resistance value and proper electric conductivity, in order to decrease peak current at sparking with an electron gun and to prevent the damage of negative electrode and an electron gun circuit.
JP12598580A 1980-09-12 1980-09-12 Color picture tube Granted JPS5750753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12598580A JPS5750753A (en) 1980-09-12 1980-09-12 Color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12598580A JPS5750753A (en) 1980-09-12 1980-09-12 Color picture tube

Publications (2)

Publication Number Publication Date
JPS5750753A true JPS5750753A (en) 1982-03-25
JPH0359542B2 JPH0359542B2 (en) 1991-09-10

Family

ID=14923869

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12598580A Granted JPS5750753A (en) 1980-09-12 1980-09-12 Color picture tube

Country Status (1)

Country Link
JP (1) JPS5750753A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550032A (en) * 1983-03-14 1985-10-29 U.S. Philips Corporation Electric discharge tube and method of manufacturing an electrically conductive layer on a wall portion of the envelope of such a tube
JPS6132944A (en) * 1984-07-26 1986-02-15 Toshiba Corp Cathode-ray tube
JPS61211944A (en) * 1985-03-18 1986-09-20 Toshiba Corp Cathode-ray tube
JPS6379794A (en) * 1986-07-10 1988-04-09 テキサス　インスツルメンツ　インコ−ポレイテツド Material treatment furnace and method of forming single crystal silicon sphere
JPH02214784A (en) * 1989-02-15 1990-08-27 Nippon Achison Kk Interior finish coating material composition for cathode ray tube
KR970008296A (en) * 1995-07-28 1997-02-24 구자홍 Cathode ray tube conductive coating liquid

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5238713A (en) * 1975-09-19 1977-03-25 Shingijutsu Kaihatsu Kk Supporting device for withdrawing anchor
JPS5252362A (en) * 1975-09-22 1977-04-27 Rca Corp Crt
JPS539400A (en) * 1976-07-14 1978-01-27 Japan Tobacco Inc Method for increasing packing capacity of tobacco
JPS5641655A (en) * 1979-09-14 1981-04-18 Hitachi Powdered Metals Co Ltd Preparation of coating for cathode ray tube
JPS5832735A (en) * 1981-08-19 1983-02-25 オリンパス光学工業株式会社 Length measuring apparatus for endoscope
JPS6252422A (en) * 1985-09-02 1987-03-07 Toho Rayon Co Ltd Sleeve for measuring temperature of high temperature treatment furnace and it use

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5238713A (en) * 1975-09-19 1977-03-25 Shingijutsu Kaihatsu Kk Supporting device for withdrawing anchor
JPS5252362A (en) * 1975-09-22 1977-04-27 Rca Corp Crt
JPS539400A (en) * 1976-07-14 1978-01-27 Japan Tobacco Inc Method for increasing packing capacity of tobacco
JPS5641655A (en) * 1979-09-14 1981-04-18 Hitachi Powdered Metals Co Ltd Preparation of coating for cathode ray tube
JPS5832735A (en) * 1981-08-19 1983-02-25 オリンパス光学工業株式会社 Length measuring apparatus for endoscope
JPS6252422A (en) * 1985-09-02 1987-03-07 Toho Rayon Co Ltd Sleeve for measuring temperature of high temperature treatment furnace and it use

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550032A (en) * 1983-03-14 1985-10-29 U.S. Philips Corporation Electric discharge tube and method of manufacturing an electrically conductive layer on a wall portion of the envelope of such a tube
JPS6132944A (en) * 1984-07-26 1986-02-15 Toshiba Corp Cathode-ray tube
JPS61211944A (en) * 1985-03-18 1986-09-20 Toshiba Corp Cathode-ray tube
JPS6379794A (en) * 1986-07-10 1988-04-09 テキサス　インスツルメンツ　インコ−ポレイテツド Material treatment furnace and method of forming single crystal silicon sphere
JPH02214784A (en) * 1989-02-15 1990-08-27 Nippon Achison Kk Interior finish coating material composition for cathode ray tube
KR970008296A (en) * 1995-07-28 1997-02-24 구자홍 Cathode ray tube conductive coating liquid

Also Published As

Publication number Publication date
JPH0359542B2 (en) 1991-09-10

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