JPS55150539A - Cathode-ray tube - Google Patents

Cathode-ray tube

Info

Publication number
JPS55150539A
JPS55150539A JP5813479A JP5813479A JPS55150539A JP S55150539 A JPS55150539 A JP S55150539A JP 5813479 A JP5813479 A JP 5813479A JP 5813479 A JP5813479 A JP 5813479A JP S55150539 A JPS55150539 A JP S55150539A
Authority
JP
Japan
Prior art keywords
high voltage
resistance value
contact
graphite
graphite film
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
JP5813479A
Other languages
Japanese (ja)
Other versions
JPS645741B2 (en
Inventor
Shigemi Hirasawa
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
Priority to JP5813479A priority Critical patent/JPS55150539A/en
Publication of JPS55150539A publication Critical patent/JPS55150539A/en
Publication of JPS645741B2 publication Critical patent/JPS645741B2/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
    • H01J29/96—One or more circuit elements structurally associated with the tube
    • 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

Abstract

PURPOSE:To remove a poor continuity from the contact parts between a graphite film and high voltage induction unit that makes a contact with said film and improve the quality and reliability of a tube, by providing the graphite film of low resistance value on the wall surface of a funnel part contacted to the high voltage induction unit. CONSTITUTION:In the vicinity of an anode button 4 to be a high voltage induction unit, a contact spring 6 for inducting a high voltage to a shadow mask 5 and a contact piece of a bulb spacer contact 8 for inducting the high voltage to an electron gun structure 7, on the inner wall faces of a funnel part 3, graphite films 10 having a low resistance value are applied and formed. A graphite film 9 having a high resistance value is made in such a manner that its specific resistance becomes 1- 1,000OMEGA-cm by increasing the additive amount of titanium oxide. While the graphite film 10 having a low resistance value is so made that its specific resistance becomes 0.001-0.4OMEGA-cm by increasing the additive amount of graphite. In this way, the quality and reliability of a tube can be improved.
JP5813479A 1979-05-14 1979-05-14 Cathode-ray tube Granted JPS55150539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5813479A JPS55150539A (en) 1979-05-14 1979-05-14 Cathode-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5813479A JPS55150539A (en) 1979-05-14 1979-05-14 Cathode-ray tube

Publications (2)

Publication Number Publication Date
JPS55150539A true JPS55150539A (en) 1980-11-22
JPS645741B2 JPS645741B2 (en) 1989-01-31

Family

ID=13075507

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5813479A Granted JPS55150539A (en) 1979-05-14 1979-05-14 Cathode-ray tube

Country Status (1)

Country Link
JP (1) JPS55150539A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5682555A (en) * 1979-12-07 1981-07-06 Toshiba Corp Cathode ray tube
JPS58176854A (en) * 1982-04-09 1983-10-17 Hitachi Ltd Color crt
US4602187A (en) * 1984-06-28 1986-07-22 North American Philips Consumer Electronics Corp. Color CRT with composite arc suppression structure
US4760310A (en) * 1985-01-31 1988-07-26 Hitachi Powdered Metals Co., Ltd. Cathode-ray tubes and coating materials therefor
EP1024518A2 (en) * 1999-01-28 2000-08-02 Matsushita Electronics Corporation Color cathode ray tube and method for manufacturing the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548363U (en) * 1977-06-20 1979-01-19
JPS54157468A (en) * 1978-06-02 1979-12-12 Hitachi Ltd Interior conducting coat of cathode-ray tube
JPS551010A (en) * 1978-06-16 1980-01-07 Hitachi Ltd Color braun tube
JPS5581451A (en) * 1978-12-14 1980-06-19 Matsushita Electronics Corp Color picture tube
JPS6131584A (en) * 1984-07-20 1986-02-14 松下電工株式会社 Housing assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548363U (en) * 1977-06-20 1979-01-19
JPS54157468A (en) * 1978-06-02 1979-12-12 Hitachi Ltd Interior conducting coat of cathode-ray tube
JPS551010A (en) * 1978-06-16 1980-01-07 Hitachi Ltd Color braun tube
JPS5581451A (en) * 1978-12-14 1980-06-19 Matsushita Electronics Corp Color picture tube
JPS6131584A (en) * 1984-07-20 1986-02-14 松下電工株式会社 Housing assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5682555A (en) * 1979-12-07 1981-07-06 Toshiba Corp Cathode ray tube
JPS58176854A (en) * 1982-04-09 1983-10-17 Hitachi Ltd Color crt
US4602187A (en) * 1984-06-28 1986-07-22 North American Philips Consumer Electronics Corp. Color CRT with composite arc suppression structure
US4760310A (en) * 1985-01-31 1988-07-26 Hitachi Powdered Metals Co., Ltd. Cathode-ray tubes and coating materials therefor
EP1024518A2 (en) * 1999-01-28 2000-08-02 Matsushita Electronics Corporation Color cathode ray tube and method for manufacturing the same
EP1024518A3 (en) * 1999-01-28 2002-11-13 Matsushita Electric Industrial Co., Ltd. Color cathode ray tube and method for manufacturing the same

Also Published As

Publication number Publication date
JPS645741B2 (en) 1989-01-31

Similar Documents

Publication Publication Date Title
JPS5367972A (en) Electrode for elctric discharge lamp
GB1457798A (en) Cathode-ray tube
JPS55150539A (en) Cathode-ray tube
JPS5645553A (en) Color picture tube
ES436870A1 (en) Cathode ray tube with electrostatic multipole focusing lens
JPS551010A (en) Color braun tube
JPS5743348A (en) Cathode ray tube
JPS54105957A (en) Electron gun
JPS526076A (en) Manufacturing process of cathode ray tube
JPS5369578A (en) Color cathode ray tube
JPS5717544A (en) Electron gun constituent for cathode-ray tube
JPS55165551A (en) Ctahode-ray tube
JPS5682555A (en) Cathode ray tube
JPS569952A (en) Cathode-ray tube
JPS56114264A (en) Cathode-ray tube
GB829339A (en) Improvements in or relating to equipotential cathodes for electric discharge tubes and discharge tubes containing such cathodes
JPS5226150A (en) Secondary electron multiplier
GB721948A (en) Improvements in or relating to television pick-up cathode ray tubes
JPS54159164A (en) Cathode ray tube
JPS52113153A (en) Cathode ray tube electronic gun
GB783164A (en) Improvements in or relating to electron discharge devices employing photo-conductivetarget electrodes
JPS5345963A (en) Cathode-ray tube
JPS56118243A (en) Cathode for dc type gas discharge indication panel and manufacture
GB656617A (en) Improvements relating to electron guns for cathode ray tubes
JPS57163952A (en) Electron gun for braun tube